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🔐 feat: Add Resource Parameter to OAuth Requests per MCP Spec (#8599)

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Rinor Maloku 2025-07-22 23:52:55 +02:00 • committed by GitHub
parent e5d08ccdf1
commit baf3b4ad08
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3 changed files with 33 additions and 5 deletions
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8
package-lock.json generated
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@ -22333,9 +22333,9 @@
}
},
"node_modules/@modelcontextprotocol/sdk": {
"version": "1.13.3",
"resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.13.3.tgz",
"integrity": "sha512-bGwA78F/U5G2jrnsdRkPY3IwIwZeWUEfb5o764b79lb0rJmMT76TLwKhdNZOWakOQtedYefwIR4emisEMvInKA==",
"version": "1.16.0",
"resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.16.0.tgz",
"integrity": "sha512-8ofX7gkZcLj9H9rSd50mCgm3SSF8C7XoclxJuLoV0Cz3rEQ1tv9MZRYYvJtm9n1BiEQQMzSmE/w2AEkNacLYfg==",
"license": "MIT",
"peer": true,
"dependencies": {
@ -48619,7 +48619,7 @@
"@langchain/core": "^0.3.62",
"@librechat/agents": "^2.4.67",
"@librechat/data-schemas": "*",
"@modelcontextprotocol/sdk": "^1.13.3",
"@modelcontextprotocol/sdk": "^1.16.0",
"axios": "^1.8.2",
"diff": "^7.0.0",
"eventsource": "^3.0.2",

2
packages/api/package.json
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@ -72,7 +72,7 @@
"@langchain/core": "^0.3.62",
"@librechat/agents": "^2.4.67",
"@librechat/data-schemas": "*",
"@modelcontextprotocol/sdk": "^1.13.3",
"@modelcontextprotocol/sdk": "^1.16.0",
"axios": "^1.8.2",
"diff": "^7.0.0",
"eventsource": "^3.0.2",

28
packages/api/src/mcp/oauth/handler.ts
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@ -268,6 +268,19 @@ export class MCPOAuthHandler {
/** Add state parameter with flowId to the authorization URL */
authorizationUrl.searchParams.set('state', flowId);
logger.debug(`[MCPOAuth] Added state parameter to authorization URL`);
if (resourceMetadata?.resource) {
authorizationUrl.searchParams.set('resource', resourceMetadata.resource);
} else {
logger.warn(
`[MCPOAuth] Resource metadata missing 'resource' property for ${serverName}. ` +
'This can cause issues with some Authorization Servers who expect a "resource" parameter.',
);
}
logger.debug(
`[MCPOAuth] Added resource parameter to authorization URL: ${resourceMetadata.resource}`,
);
} catch (error) {
logger.error(`[MCPOAuth] startAuthorization failed:`, error);
throw error;
@ -330,12 +343,27 @@ export class MCPOAuthHandler {
throw new Error('Invalid flow metadata');
}
let resource;
try {
if (metadata.resourceMetadata?.resource) {
resource = new URL(metadata.resourceMetadata.resource);
logger.debug(`[MCPOAuth] Resource URL for flow ${flowId}: ${resource.toString()}`);
}
} catch (error) {
logger.warn(
`[MCPOAuth] Invalid resource URL format for flow ${flowId}: '${metadata.resourceMetadata!.resource}'. ` +
`Error: ${error instanceof Error ? error.message : 'Unknown error'}. Proceeding without resource parameter.`,
);
resource = undefined;
}
const tokens = await exchangeAuthorization(metadata.serverUrl, {
metadata: metadata.metadata as unknown as SDKOAuthMetadata,
clientInformation: metadata.clientInfo,
authorizationCode,
codeVerifier: metadata.codeVerifier,
redirectUri: metadata.clientInfo.redirect_uris?.[0] || this.getDefaultRedirectUri(),
resource: resource,
});
logger.debug('[MCPOAuth] Raw tokens from exchange:', {