🧬 refactor: Optimize MCP Tool Queries with Server-Centric Architecture

🧬 refactor: Optimize MCP Tool Queries with Server-Centric Architecture

refactor: optimize mcp tool queries by removing redundancy, making server-centric structure, enabling query only when expected, minimize looping/transforming query data, eliminating unused/compute-heavy methods

ci: MCP Server Tools Mocking in Agent Tests

api/models/Agent.spec.js

@@ -8,6 +8,7 @@ process.env.CREDS_IV = '0123456789abcdef';
 
 jest.mock('~/server/services/Config', () => ({
   getCachedTools: jest.fn(),
+  getMCPServerTools: jest.fn(),
 }));
 
 const mongoose = require('mongoose');
@@ -30,7 +31,7 @@ const {
   generateActionMetadataHash,
 } = require('./Agent');
 const permissionService = require('~/server/services/PermissionService');
-const { getCachedTools } = require('~/server/services/Config');
+const { getCachedTools, getMCPServerTools } = require('~/server/services/Config');
 const { AclEntry } = require('~/db/models');
 
 /**
@@ -1929,6 +1930,16 @@ describe('models/Agent', () => {
         another_tool: {},
       });
 
+      // Mock getMCPServerTools to return tools for each server
+      getMCPServerTools.mockImplementation(async (server) => {
+        if (server === 'server1') {
+          return { tool1_mcp_server1: {} };
+        } else if (server === 'server2') {
+          return { tool2_mcp_server2: {} };
+        }
+        return null;
+      });
+
       const mockReq = {
         user: { id: 'user123' },
         body: {
@@ -2113,6 +2124,14 @@ describe('models/Agent', () => {
 
         getCachedTools.mockResolvedValue(availableTools);
 
+        // Mock getMCPServerTools to return all tools for server1
+        getMCPServerTools.mockImplementation(async (server) => {
+          if (server === 'server1') {
+            return availableTools; // All 100 tools belong to server1
+          }
+          return null;
+        });
+
         const mockReq = {
           user: { id: 'user123' },
           body: {
@@ -2654,6 +2673,17 @@ describe('models/Agent', () => {
         tool_mcp_server2: {}, // Different server
       });
 
+      // Mock getMCPServerTools to return only tools matching the server
+      getMCPServerTools.mockImplementation(async (server) => {
+        if (server === 'server1') {
+          // Only return tool that correctly matches server1 format
+          return { tool_mcp_server1: {} };
+        } else if (server === 'server2') {
+          return { tool_mcp_server2: {} };
+        }
+        return null;
+      });
+
       const mockReq = {
         user: { id: 'user123' },
         body: {

api/server/controllers/mcp.js

@@ -4,7 +4,6 @@
  */
 const { logger } = require('@librechat/data-schemas');
 const { Constants } = require('librechat-data-provider');
-const { convertMCPToolToPlugin } = require('@librechat/api');
 const {
   cacheMCPServerTools,
   getMCPServerTools,
@@ -14,7 +13,6 @@ const { getMCPManager } = require('~/config');
 
 /**
  * Get all MCP tools available to the user
- * Returns only MCP tools, not regular LibreChat tools
  */
 const getMCPTools = async (req, res) => {
   try {
@@ -26,77 +24,97 @@ const getMCPTools = async (req, res) => {
 
     const appConfig = req.config ?? (await getAppConfig({ role: req.user?.role }));
     if (!appConfig?.mcpConfig) {
-      return res.status(200).json([]);
+      return res.status(200).json({ servers: {} });
     }
 
     const mcpManager = getMCPManager();
     const configuredServers = Object.keys(appConfig.mcpConfig);
-    const mcpTools = [];
+    const mcpServers = {};
 
-    // Fetch tools from each configured server
+    const cachePromises = configuredServers.map((serverName) =>
+      getMCPServerTools(serverName).then((tools) => ({ serverName, tools })),
+    );
+    const cacheResults = await Promise.all(cachePromises);
+
+    const serverToolsMap = new Map();
+    for (const { serverName, tools } of cacheResults) {
+      if (tools) {
+        serverToolsMap.set(serverName, tools);
+        continue;
+      }
+
+      const serverTools = await mcpManager.getServerToolFunctions(userId, serverName);
+      if (!serverTools) {
+        logger.debug(`[getMCPTools] No tools found for server ${serverName}`);
+        continue;
+      }
+      serverToolsMap.set(serverName, serverTools);
+
+      if (Object.keys(serverTools).length > 0) {
+        // Cache asynchronously without blocking
+        cacheMCPServerTools({ serverName, serverTools }).catch((err) =>
+          logger.error(`[getMCPTools] Failed to cache tools for ${serverName}:`, err),
+        );
+      }
+    }
+
+    // Process each configured server
     for (const serverName of configuredServers) {
       try {
-        // First check server-specific cache
+        const serverTools = serverToolsMap.get(serverName);
-        let serverTools = await getMCPServerTools(serverName);
 
-        if (!serverTools) {
+        // Get server config once
-          // If not cached, fetch from MCP manager
+        const serverConfig = appConfig.mcpConfig[serverName];
-          const allTools = await mcpManager.getAllToolFunctions(userId);
+        const rawServerConfig = mcpManager.getRawConfig(serverName);
-          serverTools = {};
 
-          // Filter tools for this specific server
+        // Initialize server object with all server-level data
-          for (const [toolKey, toolData] of Object.entries(allTools)) {
+        const server = {
-            if (toolKey.endsWith(`${Constants.mcp_delimiter}${serverName}`)) {
+          name: serverName,
-              serverTools[toolKey] = toolData;
+          icon: rawServerConfig?.iconPath || '',
-            }
+          authenticated: true,
-          }
+          authConfig: [],
+          tools: [],
+        };
 
-          // Cache server tools if found
+        // Set authentication config once for the server
-          if (Object.keys(serverTools).length > 0) {
+        if (serverConfig?.customUserVars) {
-            await cacheMCPServerTools({ serverName, serverTools });
+          const customVarKeys = Object.keys(serverConfig.customUserVars);
+          if (customVarKeys.length > 0) {
+            server.authConfig = Object.entries(serverConfig.customUserVars).map(([key, value]) => ({
+              authField: key,
+              label: value.title || key,
+              description: value.description || '',
+            }));
+            server.authenticated = false;
           }
         }
 
-        // Convert to plugin format
+        // Process tools efficiently - no need for convertMCPToolToPlugin
-        for (const [toolKey, toolData] of Object.entries(serverTools)) {
+        if (serverTools) {
-          const plugin = convertMCPToolToPlugin({
+          for (const [toolKey, toolData] of Object.entries(serverTools)) {
-            toolKey,
+            if (!toolData.function || !toolKey.includes(Constants.mcp_delimiter)) {
-            toolData,
+              continue;
-            mcpManager,
-          });
-
-          if (plugin) {
-            // Add authentication config from server config
-            const serverConfig = appConfig.mcpConfig[serverName];
-            if (serverConfig?.customUserVars) {
-              const customVarKeys = Object.keys(serverConfig.customUserVars);
-              if (customVarKeys.length === 0) {
-                plugin.authConfig = [];
-                plugin.authenticated = true;
-              } else {
-                plugin.authConfig = Object.entries(serverConfig.customUserVars).map(
-                  ([key, value]) => ({
-                    authField: key,
-                    label: value.title || key,
-                    description: value.description || '',
-                  }),
-                );
-                plugin.authenticated = false;
-              }
-            } else {
-              plugin.authConfig = [];
-              plugin.authenticated = true;
             }
 
-            mcpTools.push(plugin);
+            const toolName = toolKey.split(Constants.mcp_delimiter)[0];
+            server.tools.push({
+              name: toolName,
+              pluginKey: toolKey,
+              description: toolData.function.description || '',
+            });
           }
         }
+
+        // Only add server if it has tools or is configured
+        if (server.tools.length > 0 || serverConfig) {
+          mcpServers[serverName] = server;
+        }
       } catch (error) {
         logger.error(`[getMCPTools] Error loading tools for server ${serverName}:`, error);
       }
     }
 
-    res.status(200).json(mcpTools);
+    res.status(200).json({ servers: mcpServers });
   } catch (error) {
     logger.error('[getMCPTools]', error);
     res.status(500).json({ message: error.message });

api/server/controllers/mcp.spec.js

@@ -1,561 +0,0 @@
-const { getMCPTools } = require('./mcp');
-const { getAppConfig, getMCPServerTools } = require('~/server/services/Config');
-const { getMCPManager } = require('~/config');
-const { convertMCPToolToPlugin } = require('@librechat/api');
-
-jest.mock('@librechat/data-schemas', () => ({
-  logger: {
-    debug: jest.fn(),
-    error: jest.fn(),
-    warn: jest.fn(),
-  },
-}));
-
-jest.mock('librechat-data-provider', () => ({
-  Constants: {
-    mcp_delimiter: '~~~',
-  },
-}));
-
-jest.mock('@librechat/api', () => ({
-  convertMCPToolToPlugin: jest.fn(),
-}));
-
-jest.mock('~/server/services/Config', () => ({
-  getAppConfig: jest.fn(),
-  getMCPServerTools: jest.fn(),
-  cacheMCPServerTools: jest.fn(),
-}));
-
-jest.mock('~/config', () => ({
-  getMCPManager: jest.fn(),
-}));
-
-describe('MCP Controller', () => {
-  let mockReq, mockRes, mockMCPManager;
-
-  beforeEach(() => {
-    jest.clearAllMocks();
-
-    mockReq = {
-      user: { id: 'test-user-id', role: 'user' },
-      config: null,
-    };
-
-    mockRes = {
-      status: jest.fn().mockReturnThis(),
-      json: jest.fn(),
-    };
-
-    mockMCPManager = {
-      getAllToolFunctions: jest.fn().mockResolvedValue({}),
-    };
-
-    getMCPManager.mockReturnValue(mockMCPManager);
-    getAppConfig.mockResolvedValue({
-      mcpConfig: {},
-    });
-    getMCPServerTools.mockResolvedValue(null);
-  });
-
-  describe('getMCPTools', () => {
-    it('should return 401 when user ID is not found', async () => {
-      mockReq.user = null;
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(mockRes.status).toHaveBeenCalledWith(401);
-      expect(mockRes.json).toHaveBeenCalledWith({ message: 'Unauthorized' });
-      const { logger } = require('@librechat/data-schemas');
-      expect(logger.warn).toHaveBeenCalledWith('[getMCPTools] User ID not found in request');
-    });
-
-    it('should return empty array when no mcpConfig exists', async () => {
-      getAppConfig.mockResolvedValue({
-        // No mcpConfig
-      });
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([]);
-    });
-
-    it('should use cached server tools when available', async () => {
-      const cachedTools = {
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-      };
-
-      getMCPServerTools.mockResolvedValue(cachedTools);
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {},
-        },
-      });
-
-      const mockPlugin = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-      convertMCPToolToPlugin.mockReturnValue(mockPlugin);
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(getMCPServerTools).toHaveBeenCalledWith('server1');
-      expect(mockMCPManager.getAllToolFunctions).not.toHaveBeenCalled();
-      expect(convertMCPToolToPlugin).toHaveBeenCalledWith({
-        toolKey: 'tool1~~~server1',
-        toolData: cachedTools['tool1~~~server1'],
-        mcpManager: mockMCPManager,
-      });
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin,
-          authConfig: [],
-          authenticated: true,
-        },
-      ]);
-    });
-
-    it('should fetch from MCP manager when cache is empty', async () => {
-      getMCPServerTools.mockResolvedValue(null);
-
-      const allTools = {
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-        'tool2~~~server2': {
-          type: 'function',
-          function: {
-            name: 'tool2',
-            description: 'Tool 2',
-            parameters: {},
-          },
-        },
-      };
-
-      mockMCPManager.getAllToolFunctions.mockResolvedValue(allTools);
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {},
-        },
-      });
-
-      const mockPlugin = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-      convertMCPToolToPlugin.mockReturnValue(mockPlugin);
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(getMCPServerTools).toHaveBeenCalledWith('server1');
-      expect(mockMCPManager.getAllToolFunctions).toHaveBeenCalledWith('test-user-id');
-
-      // Should cache the server tools
-      const { cacheMCPServerTools } = require('~/server/services/Config');
-      expect(cacheMCPServerTools).toHaveBeenCalledWith({
-        serverName: 'server1',
-        serverTools: {
-          'tool1~~~server1': allTools['tool1~~~server1'],
-        },
-      });
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin,
-          authConfig: [],
-          authenticated: true,
-        },
-      ]);
-    });
-
-    it('should handle custom user variables in server config', async () => {
-      getMCPServerTools.mockResolvedValue({
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-      });
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {
-            customUserVars: {
-              API_KEY: {
-                title: 'API Key',
-                description: 'Your API key',
-              },
-              SECRET: {
-                title: 'Secret Token',
-                description: 'Your secret token',
-              },
-            },
-          },
-        },
-      });
-
-      const mockPlugin = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-      convertMCPToolToPlugin.mockReturnValue(mockPlugin);
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin,
-          authConfig: [
-            {
-              authField: 'API_KEY',
-              label: 'API Key',
-              description: 'Your API key',
-            },
-            {
-              authField: 'SECRET',
-              label: 'Secret Token',
-              description: 'Your secret token',
-            },
-          ],
-          authenticated: false,
-        },
-      ]);
-    });
-
-    it('should handle empty custom user variables', async () => {
-      getMCPServerTools.mockResolvedValue({
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-      });
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {
-            customUserVars: {},
-          },
-        },
-      });
-
-      const mockPlugin = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-      convertMCPToolToPlugin.mockReturnValue(mockPlugin);
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin,
-          authConfig: [],
-          authenticated: true,
-        },
-      ]);
-    });
-
-    it('should handle multiple servers', async () => {
-      getMCPServerTools.mockResolvedValue(null);
-
-      const allTools = {
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-        'tool2~~~server2': {
-          type: 'function',
-          function: {
-            name: 'tool2',
-            description: 'Tool 2',
-            parameters: {},
-          },
-        },
-      };
-
-      mockMCPManager.getAllToolFunctions.mockResolvedValue(allTools);
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {},
-          server2: {},
-        },
-      });
-
-      const mockPlugin1 = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-      const mockPlugin2 = {
-        name: 'Tool 2',
-        pluginKey: 'tool2~~~server2',
-        description: 'Tool 2',
-      };
-
-      convertMCPToolToPlugin.mockReturnValueOnce(mockPlugin1).mockReturnValueOnce(mockPlugin2);
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(getMCPServerTools).toHaveBeenCalledWith('server1');
-      expect(getMCPServerTools).toHaveBeenCalledWith('server2');
-      expect(mockMCPManager.getAllToolFunctions).toHaveBeenCalledTimes(2);
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin1,
-          authConfig: [],
-          authenticated: true,
-        },
-        {
-          ...mockPlugin2,
-          authConfig: [],
-          authenticated: true,
-        },
-      ]);
-    });
-
-    it('should handle server-specific errors gracefully', async () => {
-      getMCPServerTools.mockResolvedValue(null);
-      mockMCPManager.getAllToolFunctions.mockRejectedValue(new Error('Server connection failed'));
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {},
-          server2: {},
-        },
-      });
-
-      await getMCPTools(mockReq, mockRes);
-
-      const { logger } = require('@librechat/data-schemas');
-      expect(logger.error).toHaveBeenCalledWith(
-        '[getMCPTools] Error loading tools for server server1:',
-        expect.any(Error),
-      );
-      expect(logger.error).toHaveBeenCalledWith(
-        '[getMCPTools] Error loading tools for server server2:',
-        expect.any(Error),
-      );
-
-      // Should still return 200 with empty array
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([]);
-    });
-
-    it('should skip tools when convertMCPToolToPlugin returns null', async () => {
-      getMCPServerTools.mockResolvedValue({
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-        'tool2~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool2',
-            description: 'Tool 2',
-            parameters: {},
-          },
-        },
-      });
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {},
-        },
-      });
-
-      const mockPlugin = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-
-      // First tool returns plugin, second returns null
-      convertMCPToolToPlugin.mockReturnValueOnce(mockPlugin).mockReturnValueOnce(null);
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin,
-          authConfig: [],
-          authenticated: true,
-        },
-      ]);
-    });
-
-    it('should use req.config when available', async () => {
-      const reqConfig = {
-        mcpConfig: {
-          server1: {},
-        },
-      };
-      mockReq.config = reqConfig;
-
-      getMCPServerTools.mockResolvedValue({
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-      });
-
-      const mockPlugin = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-      convertMCPToolToPlugin.mockReturnValue(mockPlugin);
-
-      await getMCPTools(mockReq, mockRes);
-
-      // Should not call getAppConfig when req.config is available
-      expect(getAppConfig).not.toHaveBeenCalled();
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin,
-          authConfig: [],
-          authenticated: true,
-        },
-      ]);
-    });
-
-    it('should handle general error in getMCPTools', async () => {
-      const error = new Error('Unexpected error');
-      getAppConfig.mockRejectedValue(error);
-
-      await getMCPTools(mockReq, mockRes);
-
-      const { logger } = require('@librechat/data-schemas');
-      expect(logger.error).toHaveBeenCalledWith('[getMCPTools]', error);
-      expect(mockRes.status).toHaveBeenCalledWith(500);
-      expect(mockRes.json).toHaveBeenCalledWith({ message: 'Unexpected error' });
-    });
-
-    it('should handle custom user variables without title or description', async () => {
-      getMCPServerTools.mockResolvedValue({
-        'tool1~~~server1': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-      });
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {
-            customUserVars: {
-              MY_VAR: {
-                // No title or description
-              },
-            },
-          },
-        },
-      });
-
-      const mockPlugin = {
-        name: 'Tool 1',
-        pluginKey: 'tool1~~~server1',
-        description: 'Tool 1',
-      };
-      convertMCPToolToPlugin.mockReturnValue(mockPlugin);
-
-      await getMCPTools(mockReq, mockRes);
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([
-        {
-          ...mockPlugin,
-          authConfig: [
-            {
-              authField: 'MY_VAR',
-              label: 'MY_VAR', // Falls back to key
-              description: '', // Empty string
-            },
-          ],
-          authenticated: false,
-        },
-      ]);
-    });
-
-    it('should not cache when no tools are found for a server', async () => {
-      getMCPServerTools.mockResolvedValue(null);
-
-      const allTools = {
-        'tool1~~~otherserver': {
-          type: 'function',
-          function: {
-            name: 'tool1',
-            description: 'Tool 1',
-            parameters: {},
-          },
-        },
-      };
-
-      mockMCPManager.getAllToolFunctions.mockResolvedValue(allTools);
-
-      getAppConfig.mockResolvedValue({
-        mcpConfig: {
-          server1: {},
-        },
-      });
-
-      await getMCPTools(mockReq, mockRes);
-
-      const { cacheMCPServerTools } = require('~/server/services/Config');
-      expect(cacheMCPServerTools).not.toHaveBeenCalled();
-
-      expect(mockRes.status).toHaveBeenCalledWith(200);
-      expect(mockRes.json).toHaveBeenCalledWith([]);
-    });
-  });
-});

client/src/Providers/AgentPanelContext.tsx

@@ -1,5 +1,5 @@
 import React, { createContext, useContext, useState, useMemo } from 'react';
-import { Constants, EModelEndpoint } from 'librechat-data-provider';
+import { EModelEndpoint } from 'librechat-data-provider';
 import type { MCP, Action, TPlugin } from 'librechat-data-provider';
 import type { AgentPanelContextType, MCPServerInfo } from '~/common';
 import {
@@ -30,6 +30,7 @@ export function AgentPanelProvider({ children }: { children: React.ReactNode })
   const [activePanel, setActivePanel] = useState<Panel>(Panel.builder);
   const [agent_id, setCurrentAgentId] = useState<string | undefined>(undefined);
 
+  const { data: startupConfig } = useGetStartupConfig();
   const { data: actions } = useGetActionsQuery(EModelEndpoint.agents, {
     enabled: !!agent_id,
   });
@@ -38,11 +39,10 @@ export function AgentPanelProvider({ children }: { children: React.ReactNode })
     enabled: !!agent_id,
   });
 
-  const { data: mcpTools } = useMCPToolsQuery({
+  const { data: mcpData } = useMCPToolsQuery({
-    enabled: !!agent_id,
+    enabled: !!agent_id && startupConfig?.mcpServers != null,
   });
 
-  const { data: startupConfig } = useGetStartupConfig();
   const { agentsConfig, endpointsConfig } = useGetAgentsConfig();
   const mcpServerNames = useMemo(
     () => Object.keys(startupConfig?.mcpServers ?? {}),
@@ -57,33 +57,34 @@ export function AgentPanelProvider({ children }: { children: React.ReactNode })
     const configuredServers = new Set(mcpServerNames);
     const serversMap = new Map<string, MCPServerInfo>();
 
-    if (mcpTools) {
+    if (mcpData?.servers) {
-      for (const pluginTool of mcpTools) {
+      for (const [serverName, serverData] of Object.entries(mcpData.servers)) {
-        if (pluginTool.pluginKey.includes(Constants.mcp_delimiter)) {
+        const metadata = {
-          const [_toolName, serverName] = pluginTool.pluginKey.split(Constants.mcp_delimiter);
+          name: serverName,
+          pluginKey: serverName,
+          description: `${localize('com_ui_tool_collection_prefix')} ${serverName}`,
+          icon: serverData.icon || '',
+          authConfig: serverData.authConfig,
+          authenticated: serverData.authenticated,
+        } as TPlugin;
 
-          if (!serversMap.has(serverName)) {
+        const tools = serverData.tools.map((tool) => ({
-            const metadata = {
+          tool_id: tool.pluginKey,
-              name: serverName,
+          metadata: {
-              pluginKey: serverName,
+            ...tool,
-              description: `${localize('com_ui_tool_collection_prefix')} ${serverName}`,
+            icon: serverData.icon,
-              icon: pluginTool.icon || '',
+            authConfig: serverData.authConfig,
-            } as TPlugin;
+            authenticated: serverData.authenticated,
+          } as TPlugin,
+        }));
 
-            serversMap.set(serverName, {
+        serversMap.set(serverName, {
-              serverName,
+          serverName,
-              tools: [],
+          tools,
-              isConfigured: configuredServers.has(serverName),
+          isConfigured: configuredServers.has(serverName),
-              isConnected: connectionStatus?.[serverName]?.connectionState === 'connected',
+          isConnected: connectionStatus?.[serverName]?.connectionState === 'connected',
-              metadata,
+          metadata,
-            });
+        });
-          }
-
-          serversMap.get(serverName)!.tools.push({
-            tool_id: pluginTool.pluginKey,
-            metadata: pluginTool as TPlugin,
-          });
-        }
       }
     }
 
@@ -109,7 +110,7 @@ export function AgentPanelProvider({ children }: { children: React.ReactNode })
     }
 
     return serversMap;
-  }, [mcpTools, localize, mcpServerNames, connectionStatus]);
+  }, [mcpData, localize, mcpServerNames, connectionStatus]);
 
   const value: AgentPanelContextType = {
     mcp,
@@ -120,7 +121,6 @@ export function AgentPanelProvider({ children }: { children: React.ReactNode })
     setMcps,
     agent_id,
     setAction,
-    mcpTools,
     activePanel,
     regularTools,
     agentsConfig,

client/src/common/types.ts

@@ -234,7 +234,6 @@ export type AgentPanelContextType = {
   setMcps: React.Dispatch<React.SetStateAction<t.MCP[] | undefined>>;
   activePanel?: string;
   regularTools?: t.TPlugin[];
-  mcpTools?: t.TPlugin[];
   setActivePanel: React.Dispatch<React.SetStateAction<Panel>>;
   setCurrentAgentId: React.Dispatch<React.SetStateAction<string | undefined>>;
   agent_id?: string;

client/src/components/SidePanel/Agents/AgentConfig.tsx

@@ -473,13 +473,15 @@ export default function AgentConfig({ createMutation }: Pick<AgentPanelProps, 'c
         setIsOpen={setShowToolDialog}
         endpoint={EModelEndpoint.agents}
       />
-      <MCPToolSelectDialog
+      {startupConfig?.mcpServers != null && (
-        agentId={agent_id}
+        <MCPToolSelectDialog
-        isOpen={showMCPToolDialog}
+          agentId={agent_id}
-        mcpServerNames={mcpServerNames}
+          isOpen={showMCPToolDialog}
-        setIsOpen={setShowMCPToolDialog}
+          mcpServerNames={mcpServerNames}
-        endpoint={EModelEndpoint.agents}
+          setIsOpen={setShowMCPToolDialog}
-      />
+          endpoint={EModelEndpoint.agents}
+        />
+      )}
     </>
   );
 }

client/src/components/Tools/MCPToolSelectDialog.tsx

@@ -8,9 +8,9 @@ import type { TError, AgentToolType } from 'librechat-data-provider';
 import type { AgentForm, TPluginStoreDialogProps } from '~/common';
 import { useLocalize, usePluginDialogHelpers, useMCPServerManager } from '~/hooks';
 import CustomUserVarsSection from '~/components/MCP/CustomUserVarsSection';
-import { useGetStartupConfig, useMCPToolsQuery } from '~/data-provider';
 import { PluginPagination } from '~/components/Plugins/Store';
 import { useAgentPanelContext } from '~/Providers';
+import { useMCPToolsQuery } from '~/data-provider';
 import MCPToolItem from './MCPToolItem';
 
 function MCPToolSelectDialog({
@@ -24,11 +24,12 @@ function MCPToolSelectDialog({
   endpoint: EModelEndpoint.agents;
 }) {
   const localize = useLocalize();
-  const { mcpServersMap } = useAgentPanelContext();
   const { initializeServer } = useMCPServerManager();
-  const { data: startupConfig } = useGetStartupConfig();
-  const { refetch: refetchMCPTools } = useMCPToolsQuery();
   const { getValues, setValue } = useFormContext<AgentForm>();
+  const { mcpServersMap, startupConfig } = useAgentPanelContext();
+  const { refetch: refetchMCPTools } = useMCPToolsQuery({
+    enabled: mcpServersMap.size > 0,
+  });
 
   const [isInitializing, setIsInitializing] = useState<string | null>(null);
   const [configuringServer, setConfiguringServer] = useState<string | null>(null);
@@ -90,18 +91,17 @@ function MCPToolSelectDialog({
             setIsInitializing(null);
           },
           onSuccess: async () => {
-            const { data: updatedMCPTools } = await refetchMCPTools();
+            const { data: updatedMCPData } = await refetchMCPTools();
 
             const currentTools = getValues('tools') || [];
             const toolsToAdd: string[] = [
               `${Constants.mcp_server}${Constants.mcp_delimiter}${serverName}`,
             ];
 
-            if (updatedMCPTools) {
+            if (updatedMCPData?.servers?.[serverName]) {
-              updatedMCPTools.forEach((tool) => {
+              const serverData = updatedMCPData.servers[serverName];
-                if (tool.pluginKey.endsWith(`${Constants.mcp_delimiter}${serverName}`)) {
+              serverData.tools.forEach((tool) => {
-                  toolsToAdd.push(tool.pluginKey);
+                toolsToAdd.push(tool.pluginKey);
-                }
               });
             }
 

client/src/data-provider/mcp.ts

@@ -5,17 +5,17 @@
 import { useQuery } from '@tanstack/react-query';
 import { QueryKeys, dataService } from 'librechat-data-provider';
 import type { UseQueryOptions, QueryObserverResult } from '@tanstack/react-query';
-import type { TPlugin } from 'librechat-data-provider';
+import type { MCPServersResponse } from 'librechat-data-provider';
 
 /**
  * Hook for fetching MCP-specific tools
  * @param config - React Query configuration
- * @returns MCP tools grouped by server
+ * @returns MCP servers with their tools
  */
-export const useMCPToolsQuery = <TData = TPlugin[]>(
+export const useMCPToolsQuery = <TData = MCPServersResponse>(
-  config?: UseQueryOptions<TPlugin[], unknown, TData>,
+  config?: UseQueryOptions<MCPServersResponse, unknown, TData>,
 ): QueryObserverResult<TData> => {
-  return useQuery<TPlugin[], unknown, TData>(
+  return useQuery<MCPServersResponse, unknown, TData>(
     [QueryKeys.mcpTools],
     () => dataService.getMCPTools(),
     {

client/src/hooks/Config/useAppStartup.ts

@@ -7,6 +7,7 @@ import type { TStartupConfig, TPlugin, TUser } from 'librechat-data-provider';
 import { mapPlugins, selectPlugins, processPlugins } from '~/utils';
 import { cleanupTimestampedStorage } from '~/utils/timestamps';
 import useSpeechSettingsInit from './useSpeechSettingsInit';
+import { useMCPToolsQuery } from '~/data-provider';
 import store from '~/store';
 
 const pluginStore: TPlugin = {
@@ -35,6 +36,10 @@ export default function useAppStartup({
 
   useSpeechSettingsInit(!!user);
 
+  useMCPToolsQuery({
+    enabled: !!startupConfig?.mcpServers && !!user,
+  });
+
   /** Clean up old localStorage entries on startup */
   useEffect(() => {
     cleanupTimestampedStorage();

client/src/hooks/MCP/index.ts

@@ -1,4 +1,3 @@
-export * from './useGetMCPTools';
 export * from './useMCPConnectionStatus';
 export * from './useMCPSelect';
 export * from './useVisibleTools';

client/src/hooks/MCP/useGetMCPTools.ts

@@ -1,48 +0,0 @@
-import { useMemo } from 'react';
-import { Constants } from 'librechat-data-provider';
-import type { TPlugin } from 'librechat-data-provider';
-import { useMCPToolsQuery, useGetStartupConfig } from '~/data-provider';
-
-/**
- * Hook for fetching and filtering MCP tools based on server configuration
- * Uses the dedicated MCP tools query instead of filtering from general tools
- */
-export function useGetMCPTools() {
-  const { data: startupConfig } = useGetStartupConfig();
-
-  // Use dedicated MCP tools query
-  const { data: rawMcpTools } = useMCPToolsQuery({
-    select: (data: TPlugin[]) => {
-      // Group tools by server for easier management
-      const mcpToolsMap = new Map<string, TPlugin>();
-      data.forEach((tool) => {
-        const parts = tool.pluginKey.split(Constants.mcp_delimiter);
-        const serverName = parts[parts.length - 1];
-        if (!mcpToolsMap.has(serverName)) {
-          mcpToolsMap.set(serverName, {
-            name: serverName,
-            pluginKey: tool.pluginKey,
-            authConfig: tool.authConfig,
-            authenticated: tool.authenticated,
-          });
-        }
-      });
-      return Array.from(mcpToolsMap.values());
-    },
-  });
-
-  // Filter out servers that have chatMenu disabled
-  const mcpToolDetails = useMemo(() => {
-    if (!rawMcpTools || !startupConfig?.mcpServers) {
-      return rawMcpTools;
-    }
-    return rawMcpTools.filter((tool) => {
-      const serverConfig = startupConfig?.mcpServers?.[tool.name];
-      return serverConfig?.chatMenu !== false;
-    });
-  }, [rawMcpTools, startupConfig?.mcpServers]);
-
-  return {
-    mcpToolDetails,
-  };
-}

client/src/hooks/MCP/useMCPServerManager.ts

@@ -7,9 +7,9 @@ import {
   useUpdateUserPluginsMutation,
   useReinitializeMCPServerMutation,
 } from 'librechat-data-provider/react-query';
-import type { TUpdateUserPlugins, TPlugin } from 'librechat-data-provider';
+import type { TUpdateUserPlugins, TPlugin, MCPServersResponse } from 'librechat-data-provider';
 import type { ConfigFieldDetail } from '~/common';
-import { useLocalize, useMCPSelect, useGetMCPTools, useMCPConnectionStatus } from '~/hooks';
+import { useLocalize, useMCPSelect, useMCPConnectionStatus } from '~/hooks';
 import { useGetStartupConfig } from '~/data-provider';
 
 interface ServerState {
@@ -24,7 +24,6 @@ export function useMCPServerManager({ conversationId }: { conversationId?: strin
   const localize = useLocalize();
   const queryClient = useQueryClient();
   const { showToast } = useToastContext();
-  const { mcpToolDetails } = useGetMCPTools();
   const { data: startupConfig } = useGetStartupConfig();
   const { mcpValues, setMCPValues, isPinned, setIsPinned } = useMCPSelect({ conversationId });
 
@@ -448,7 +447,10 @@ export function useMCPServerManager({ conversationId }: { conversationId?: strin
 
   const getServerStatusIconProps = useCallback(
     (serverName: string) => {
-      const tool = mcpToolDetails?.find((t) => t.name === serverName);
+      const mcpData = queryClient.getQueryData<MCPServersResponse | undefined>([
+        QueryKeys.mcpTools,
+      ]);
+      const serverData = mcpData?.servers?.[serverName];
       const serverStatus = connectionStatus?.[serverName];
       const serverConfig = startupConfig?.mcpServers?.[serverName];
 
@@ -458,17 +460,20 @@ export function useMCPServerManager({ conversationId }: { conversationId?: strin
 
         previousFocusRef.current = document.activeElement as HTMLElement;
 
-        const configTool = tool || {
+        /** Minimal TPlugin object for the config dialog */
+        const configTool: TPlugin = {
           name: serverName,
           pluginKey: `${Constants.mcp_prefix}${serverName}`,
-          authConfig: serverConfig?.customUserVars
+          authConfig:
-            ? Object.entries(serverConfig.customUserVars).map(([key, config]) => ({
+            serverData?.authConfig ||
-                authField: key,
+            (serverConfig?.customUserVars
-                label: config.title,
+              ? Object.entries(serverConfig.customUserVars).map(([key, config]) => ({
-                description: config.description,
+                  authField: key,
-              }))
+                  label: config.title,
-            : [],
+                  description: config.description,
-          authenticated: false,
+                }))
+              : []),
+          authenticated: serverData?.authenticated ?? false,
         };
         setSelectedToolForConfig(configTool);
         setIsConfigModalOpen(true);
@@ -486,7 +491,14 @@ export function useMCPServerManager({ conversationId }: { conversationId?: strin
       return {
         serverName,
         serverStatus,
-        tool,
+        tool: serverData
+          ? ({
+              name: serverName,
+              pluginKey: `${Constants.mcp_prefix}${serverName}`,
+              icon: serverData.icon,
+              authenticated: serverData.authenticated,
+            } as TPlugin)
+          : undefined,
         onConfigClick: handleConfigClick,
         isInitializing: isInitializing(serverName),
         canCancel: isCancellable(serverName),
@@ -495,8 +507,8 @@ export function useMCPServerManager({ conversationId }: { conversationId?: strin
       };
     },
     [
+      queryClient,
       isCancellable,
-      mcpToolDetails,
       isInitializing,
       cancelOAuthFlow,
       connectionStatus,

packages/api/src/mcp/MCPManager.ts

@@ -13,7 +13,6 @@ import { ConnectionsRepository } from '~/mcp/ConnectionsRepository';
 import { formatToolContent } from './parsers';
 import { MCPConnection } from './connection';
 import { processMCPEnv } from '~/utils/env';
-import { CONSTANTS } from './enum';
 
 /**
  * Centralized manager for MCP server connections and tool execution.
@@ -78,6 +77,28 @@ export class MCPManager extends UserConnectionManager {
 
     return allToolFunctions;
   }
+  /** Returns all available tool functions from all connections available to user */
+  public async getServerToolFunctions(
+    userId: string,
+    serverName: string,
+  ): Promise<t.LCAvailableTools | null> {
+    if (this.appConnections?.has(serverName)) {
+      return this.serversRegistry.getToolFunctions(
+        serverName,
+        await this.appConnections.get(serverName),
+      );
+    }
+
+    const userConnections = this.getUserConnections(userId);
+    if (!userConnections || userConnections.size === 0) {
+      return null;
+    }
+    if (!userConnections.has(serverName)) {
+      return null;
+    }
+
+    return this.serversRegistry.getToolFunctions(serverName, userConnections.get(serverName)!);
+  }
 
   /**
    * Get instructions for MCP servers
@@ -121,72 +142,6 @@ ${formattedInstructions}
 Please follow these instructions when using tools from the respective MCP servers.`;
   }
 
-  private async loadAppManifestTools(): Promise<t.LCManifestTool[]> {
-    const connections = await this.appConnections!.getAll();
-    return await this.loadManifestTools(connections);
-  }
-
-  private async loadUserManifestTools(userId: string): Promise<t.LCManifestTool[]> {
-    const connections = this.getUserConnections(userId);
-    return await this.loadManifestTools(connections);
-  }
-
-  public async loadAllManifestTools(userId: string): Promise<t.LCManifestTool[]> {
-    const appTools = await this.loadAppManifestTools();
-    const userTools = await this.loadUserManifestTools(userId);
-    return [...appTools, ...userTools];
-  }
-
-  /** Loads tools from all app-level connections into the manifest. */
-  private async loadManifestTools(
-    connections?: Map<string, MCPConnection> | null,
-  ): Promise<t.LCToolManifest> {
-    const mcpTools: t.LCManifestTool[] = [];
-    if (!connections || connections.size === 0) {
-      return mcpTools;
-    }
-    for (const [serverName, connection] of connections.entries()) {
-      try {
-        if (!(await connection.isConnected())) {
-          logger.warn(
-            `[MCP][${serverName}] Connection not available for ${serverName} manifest tools.`,
-          );
-          continue;
-        }
-
-        const tools = await connection.fetchTools();
-        const serverTools: t.LCManifestTool[] = [];
-        for (const tool of tools) {
-          const pluginKey = `${tool.name}${CONSTANTS.mcp_delimiter}${serverName}`;
-
-          const config = this.serversRegistry.parsedConfigs[serverName];
-          const manifestTool: t.LCManifestTool = {
-            name: tool.name,
-            pluginKey,
-            description: tool.description ?? '',
-            icon: connection.iconPath,
-            authConfig: config?.customUserVars
-              ? Object.entries(config.customUserVars).map(([key, value]) => ({
-                  authField: key,
-                  label: value.title || key,
-                  description: value.description || '',
-                }))
-              : undefined,
-          };
-          if (config?.chatMenu === false) {
-            manifestTool.chatMenu = false;
-          }
-          mcpTools.push(manifestTool);
-          serverTools.push(manifestTool);
-        }
-      } catch (error) {
-        logger.error(`[MCP][${serverName}] Error fetching tools for manifest:`, error);
-      }
-    }
-
-    return mcpTools;
-  }
-
   /**
    * Calls a tool on an MCP server, using either a user-specific connection
    * (if userId is provided) or an app-level connection. Updates the last activity timestamp

packages/api/src/mcp/MCPServersRegistry.ts

@@ -2,6 +2,7 @@ import pick from 'lodash/pick';
 import pickBy from 'lodash/pickBy';
 import mapValues from 'lodash/mapValues';
 import { logger } from '@librechat/data-schemas';
+import { Constants } from 'librechat-data-provider';
 import type { MCPConnection } from '~/mcp/connection';
 import type { JsonSchemaType } from '~/types';
 import type * as t from '~/mcp/types';
@@ -9,7 +10,6 @@ import { ConnectionsRepository } from '~/mcp/ConnectionsRepository';
 import { detectOAuthRequirement } from '~/mcp/oauth';
 import { sanitizeUrlForLogging } from '~/mcp/utils';
 import { processMCPEnv, isEnabled } from '~/utils';
-import { CONSTANTS } from '~/mcp/enum';
 
 /**
  * Manages MCP server configurations and metadata discovery.
@@ -127,7 +127,7 @@ export class MCPServersRegistry {
 
     const toolFunctions: t.LCAvailableTools = {};
     tools.forEach((tool) => {
-      const name = `${tool.name}${CONSTANTS.mcp_delimiter}${serverName}`;
+      const name = `${tool.name}${Constants.mcp_delimiter}${serverName}`;
       toolFunctions[name] = {
         type: 'function',
         ['function']: {

packages/api/src/mcp/enum.ts

@@ -1,5 +1,4 @@
 export enum CONSTANTS {
-  mcp_delimiter = '_mcp_',
   /** System user ID for app-level OAuth tokens (all zeros ObjectId) */
   SYSTEM_USER_ID = '000000000000000000000000',
 }

packages/api/src/tools/format.spec.ts

@@ -1,12 +1,6 @@
-import { AuthType, Constants, EToolResources } from 'librechat-data-provider';
+import { AuthType, EToolResources } from 'librechat-data-provider';
-import type { TPlugin, FunctionTool } from 'librechat-data-provider';
+import type { TPlugin } from 'librechat-data-provider';
-import type { MCPManager } from '~/mcp/MCPManager';
+import { filterUniquePlugins, checkPluginAuth, getToolkitKey } from './format';
-import {
-  convertMCPToolsToPlugins,
-  filterUniquePlugins,
-  checkPluginAuth,
-  getToolkitKey,
-} from './format';
 
 describe('format.ts helper functions', () => {
   describe('filterUniquePlugins', () => {
@@ -197,212 +191,6 @@ describe('format.ts helper functions', () => {
     });
   });
 
-  describe('convertMCPToolsToPlugins', () => {
-    it('should return undefined when functionTools is undefined', () => {
-      const result = convertMCPToolsToPlugins({ functionTools: undefined });
-      expect(result).toBeUndefined();
-    });
-
-    it('should return undefined when functionTools is not an object', () => {
-      const result = convertMCPToolsToPlugins({
-        functionTools: 'not-an-object' as unknown as Record<string, FunctionTool>,
-      });
-      expect(result).toBeUndefined();
-    });
-
-    it('should return empty array when functionTools is empty object', () => {
-      const result = convertMCPToolsToPlugins({ functionTools: {} });
-      expect(result).toEqual([]);
-    });
-
-    it('should skip entries without function property', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        tool1: { type: 'function' } as FunctionTool,
-        tool2: { function: { name: 'tool2', description: 'Tool 2' } } as FunctionTool,
-      };
-
-      const result = convertMCPToolsToPlugins({ functionTools });
-      expect(result).toHaveLength(0); // tool2 doesn't have mcp_delimiter in key
-    });
-
-    it('should skip entries without mcp_delimiter in key', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        'regular-tool': {
-          type: 'function',
-          function: { name: 'regular-tool', description: 'Regular tool' },
-        } as FunctionTool,
-      };
-
-      const result = convertMCPToolsToPlugins({ functionTools });
-      expect(result).toHaveLength(0);
-    });
-
-    it('should convert MCP tools to plugins correctly', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1', description: 'Tool 1 description' },
-        } as FunctionTool,
-      };
-
-      const result = convertMCPToolsToPlugins({ functionTools });
-      expect(result).toHaveLength(1);
-      expect(result![0]).toEqual({
-        name: 'tool1',
-        pluginKey: `tool1${Constants.mcp_delimiter}server1`,
-        description: 'Tool 1 description',
-        authenticated: true,
-        icon: undefined,
-        authConfig: [],
-      });
-    });
-
-    it('should handle missing description', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1' },
-        } as FunctionTool,
-      };
-
-      const result = convertMCPToolsToPlugins({ functionTools });
-      expect(result).toHaveLength(1);
-      expect(result![0].description).toBe('');
-    });
-
-    it('should add icon from server config', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1', description: 'Tool 1' },
-        } as FunctionTool,
-      };
-
-      const mockMcpManager = {
-        getRawConfig: jest.fn().mockReturnValue({
-          command: 'test',
-          args: [],
-          iconPath: '/path/to/icon.png',
-        }),
-      } as unknown as MCPManager;
-
-      const result = convertMCPToolsToPlugins({ functionTools, mcpManager: mockMcpManager });
-      expect(result).toHaveLength(1);
-      expect(result![0].icon).toBe('/path/to/icon.png');
-      expect(mockMcpManager.getRawConfig).toHaveBeenCalledWith('server1');
-    });
-
-    it('should handle customUserVars in server config', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1', description: 'Tool 1' },
-        } as FunctionTool,
-      };
-
-      const mockMcpManager = {
-        getRawConfig: jest.fn().mockReturnValue({
-          command: 'test',
-          args: [],
-          customUserVars: {
-            API_KEY: { title: 'API Key', description: 'Your API key' },
-            SECRET: { title: 'Secret', description: 'Your secret' },
-          },
-        }),
-      } as unknown as MCPManager;
-
-      const result = convertMCPToolsToPlugins({ functionTools, mcpManager: mockMcpManager });
-      expect(result).toHaveLength(1);
-      expect(result![0].authConfig).toHaveLength(2);
-      expect(result![0].authConfig).toEqual([
-        { authField: 'API_KEY', label: 'API Key', description: 'Your API key' },
-        { authField: 'SECRET', label: 'Secret', description: 'Your secret' },
-      ]);
-      expect(mockMcpManager.getRawConfig).toHaveBeenCalledWith('server1');
-    });
-
-    it('should use key as label when title is missing in customUserVars', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1', description: 'Tool 1' },
-        } as FunctionTool,
-      };
-
-      const mockMcpManager = {
-        getRawConfig: jest.fn().mockReturnValue({
-          command: 'test',
-          args: [],
-          customUserVars: {
-            API_KEY: { title: 'API Key', description: 'Your API key' },
-          },
-        }),
-      } as unknown as MCPManager;
-
-      const result = convertMCPToolsToPlugins({ functionTools, mcpManager: mockMcpManager });
-      expect(result).toHaveLength(1);
-      expect(result![0].authConfig).toEqual([
-        { authField: 'API_KEY', label: 'API Key', description: 'Your API key' },
-      ]);
-      expect(mockMcpManager.getRawConfig).toHaveBeenCalledWith('server1');
-    });
-
-    it('should handle empty customUserVars', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1', description: 'Tool 1' },
-        } as FunctionTool,
-      };
-
-      const mockMcpManager = {
-        getRawConfig: jest.fn().mockReturnValue({
-          command: 'test',
-          args: [],
-          customUserVars: {},
-        }),
-      } as unknown as MCPManager;
-
-      const result = convertMCPToolsToPlugins({ functionTools, mcpManager: mockMcpManager });
-      expect(result).toHaveLength(1);
-      expect(result![0].authConfig).toEqual([]);
-      expect(mockMcpManager.getRawConfig).toHaveBeenCalledWith('server1');
-    });
-
-    it('should handle missing mcpManager', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1', description: 'Tool 1' },
-        } as FunctionTool,
-      };
-
-      const result = convertMCPToolsToPlugins({ functionTools });
-      expect(result).toHaveLength(1);
-      expect(result![0].icon).toBeUndefined();
-      expect(result![0].authConfig).toEqual([]);
-    });
-
-    it('should handle when getRawConfig returns undefined', () => {
-      const functionTools: Record<string, FunctionTool> = {
-        [`tool1${Constants.mcp_delimiter}server1`]: {
-          type: 'function',
-          function: { name: 'tool1', description: 'Tool 1' },
-        } as FunctionTool,
-      };
-
-      const mockMcpManager = {
-        getRawConfig: jest.fn().mockReturnValue(undefined),
-      } as unknown as MCPManager;
-
-      const result = convertMCPToolsToPlugins({ functionTools, mcpManager: mockMcpManager });
-      expect(result).toHaveLength(1);
-      expect(result![0].icon).toBeUndefined();
-      expect(result![0].authConfig).toEqual([]);
-      expect(mockMcpManager.getRawConfig).toHaveBeenCalledWith('server1');
-    });
-  });
-
   describe('getToolkitKey', () => {
     it('should return undefined when toolName is undefined', () => {
       const toolkits: TPlugin[] = [

packages/api/src/tools/format.ts

@@ -1,7 +1,5 @@
-import { AuthType, Constants, EToolResources } from 'librechat-data-provider';
+import { AuthType, EToolResources } from 'librechat-data-provider';
 import type { TPlugin } from 'librechat-data-provider';
-import type { MCPManager } from '~/mcp/MCPManager';
-import { LCAvailableTools, LCFunctionTool } from '~/mcp/types';
 
 /**
  * Filters out duplicate plugins from the list of plugins.
@@ -48,90 +46,6 @@ export const checkPluginAuth = (plugin?: TPlugin): boolean => {
   });
 };
 
-/**
- * Converts MCP function format tool to plugin format
- * @param params
- * @param params.toolKey
- * @param params.toolData
- * @param params.customConfig
- * @returns
- */
-export function convertMCPToolToPlugin({
-  toolKey,
-  toolData,
-  mcpManager,
-}: {
-  toolKey: string;
-  toolData: LCFunctionTool;
-  mcpManager?: MCPManager;
-}): TPlugin | undefined {
-  if (!toolData.function || !toolKey.includes(Constants.mcp_delimiter)) {
-    return;
-  }
-
-  const functionData = toolData.function;
-  const parts = toolKey.split(Constants.mcp_delimiter);
-  const serverName = parts[parts.length - 1];
-
-  const serverConfig = mcpManager?.getRawConfig(serverName);
-
-  const plugin: TPlugin = {
-    /** Tool name without server suffix */
-    name: parts[0],
-    pluginKey: toolKey,
-    description: functionData.description || '',
-    authenticated: true,
-    icon: serverConfig?.iconPath,
-  };
-
-  if (!serverConfig?.customUserVars) {
-    /** `authConfig` for MCP tools */
-    plugin.authConfig = [];
-    return plugin;
-  }
-
-  const customVarKeys = Object.keys(serverConfig.customUserVars);
-  if (customVarKeys.length === 0) {
-    plugin.authConfig = [];
-  } else {
-    plugin.authConfig = Object.entries(serverConfig.customUserVars).map(([key, value]) => ({
-      authField: key,
-      label: value.title || key,
-      description: value.description || '',
-    }));
-  }
-
-  return plugin;
-}
-
-/**
- * Converts MCP function format tools to plugin format
- * @param functionTools - Object with function format tools
- * @param customConfig - Custom configuration for MCP servers
- * @returns Array of plugin objects
- */
-export function convertMCPToolsToPlugins({
-  functionTools,
-  mcpManager,
-}: {
-  functionTools?: LCAvailableTools;
-  mcpManager?: MCPManager;
-}): TPlugin[] | undefined {
-  if (!functionTools || typeof functionTools !== 'object') {
-    return;
-  }
-
-  const plugins: TPlugin[] = [];
-  for (const [toolKey, toolData] of Object.entries(functionTools)) {
-    const plugin = convertMCPToolToPlugin({ toolKey, toolData, mcpManager });
-    if (plugin) {
-      plugins.push(plugin);
-    }
-  }
-
-  return plugins;
-}
-
 /**
  * @param toolkits
  * @param toolName

packages/data-provider/src/data-service.ts

@@ -299,7 +299,7 @@ export const getAvailableTools = (
 
 /* MCP Tools - Decoupled from regular tools */
 
-export const getMCPTools = (): Promise<s.TPlugin[]> => {
+export const getMCPTools = (): Promise<q.MCPServersResponse> => {
   return request.get(endpoints.mcp.tools);
 };
 

packages/data-provider/src/types/queries.ts

@@ -101,6 +101,25 @@ export type AllPromptGroupsResponse = t.TPromptGroup[];
 
 export type ConversationTagsResponse = s.TConversationTag[];
 
+/* MCP Types */
+export type MCPTool = {
+  name: string;
+  pluginKey: string;
+  description: string;
+};
+
+export type MCPServer = {
+  name: string;
+  icon: string;
+  authenticated: boolean;
+  authConfig: s.TPluginAuthConfig[];
+  tools: MCPTool[];
+};
+
+export type MCPServersResponse = {
+  servers: Record<string, MCPServer>;
+};
+
 export type VerifyToolAuthParams = { toolId: string };
 export type VerifyToolAuthResponse = {
   authenticated: boolean;