Notion + LibreChat: Complete MCP Integration

Notion is a MCP server that Notion's official hosted MCP server providing secure AI tool access to workspace content including pages, databases, and comments through OAuth authentication..

When integrated with LibreChat, you can:

• Search and retrieve live context from Notion workspace based on user access and permissions
• Access and query Notion databases to retrieve structured information
• Read page content and metadata from workspace pages you have access to

This guide provides step-by-step instructions to set up Notion in LibreChat, including configuration, examples, and troubleshooting.

What You'll Achieve

After completing this setup:

• Notion will be fully integrated and operational
• You can use Notion tools directly in LibreChat
• All Notion capabilities will be available for your workflows
• Access to 4 different tools

Prerequisites

Before starting, ensure you have:

• Node.js 18 or higher (for STDIO transport only)
• Active Notion workspace with appropriate access permissions
• MCP client that supports remote servers (HTTP/SSE) or STDIO transport
• Notion account with workspace access
• Supported AI tool with MCP client capabilities
• Permission to connect external applications to workspace
• LibreChat installed and configured
• Compatible operating system (Docker (Recommended), Kubernetes, Local Installation, Cloud Platforms)

Installation

Step 1: Install Notion

Install using npm:

npx -y mcp-remote https://mcp.notion.com/mcp

Verify installation:

Connection verified through OAuth flow in your AI tool

Configuration

Step 2: Configure LibreChat

1. Open LibreChat settings
2. Navigate to MCP server configuration
3. Add Notion server with appropriate settings
4. Save and restart if needed

Examples

Once configured, you can use Notion in LibreChat:

Create Project Documentation

Generate PRDs, tech specs, or architecture docs by pulling context from existing Notion pages

Ask LibreChat: "Create a technical specification for the new authentication system based on our security guidelines in Notion"

Expected Result: AI retrieves security guidelines from Notion workspace and generates comprehensive tech spec

Track Campaign Progress

Monitor and report on campaign status using Notion database data

Ask LibreChat: "Give me a summary of all marketing campaigns in progress with their current metrics"

Expected Result: AI queries the campaigns database and provides formatted progress report

Search Meeting Notes

Find specific information across all meeting notes in workspace

Ask LibreChat: "What decisions did we make about the API redesign in recent meetings?"

Expected Result: AI searches meeting notes and returns relevant decisions with links to source pages

Generate Release Notes

Build release documentation by aggregating information from multiple Notion pages

Ask LibreChat: "Create release notes for version 2.0 using our changelog and feature pages"

Expected Result: AI compiles information from multiple pages into formatted release notes

Task Management

Query and analyze tasks from Notion databases

Ask LibreChat: "Show me all overdue tasks assigned to the engineering team"

Expected Result: AI filters and presents overdue engineering tasks with details and links

Testing Your Setup

1. Launch LibreChat
2. Verify Notion is available in the tools list
3. Test basic Notion functionality

Troubleshooting

Common Issues

AI Tool Cannot Connect to Notion MCP

Symptoms: Connection timeout or failed errors, Notion MCP not appearing in tool directory, OAuth flow not starting

Cause: AI tool may not support MCP clients or remote MCP connections

Solution:

• Verify your AI tool supports MCP client functionality
• Check if tool supports remote MCP servers (HTTP/SSE transport)
• For tools without remote support, use STDIO with mcp-remote proxy: npx -y mcp-remote https://mcp.notion.com/mcp
• If tool lacks MCP support entirely, request feature from developers

OAuth Connection Fails

Symptoms: Authorization screen does not appear, Cannot complete OAuth flow, Connection succeeds but no workspace access

Cause: OAuth flow interrupted or workspace permissions issue

Solution:

• Use Notion app Settings > Connections > Notion MCP for easiest setup
• Ensure popup blockers are disabled during OAuth
• Check you have appropriate workspace permissions
• Try disconnecting and reconnecting through Notion app

Cannot Access Specific Pages or Databases

Symptoms: Some content returns not found errors, Searches return incomplete results, Database queries fail or return empty

Cause: Content access based on user permissions - AI tool can only see what you can see

Solution:

• Verify you have access to the pages/databases in Notion app
• Check workspace sharing settings for restricted content
• Ensure pages are not in private sections you cannot access
• Contact workspace admin if you need broader access

STDIO Transport Connection Issues

Symptoms: mcp-remote command fails, Connection drops frequently, Slow response times

Cause: STDIO transport requires mcp-remote proxy for hosted Notion MCP

Solution:

• Prefer Streamable HTTP or SSE transport if your tool supports it
• Ensure Node.js and npx are properly installed for STDIO
• Use config: npx -y mcp-remote https://mcp.notion.com/mcp
• Check network connectivity to mcp.notion.com

Tool Does Not Support Remote MCP Servers

Symptoms: Only local/STDIO servers work in tool, HTTP/SSE connections not available, No option to add remote server URL

Cause: Some MCP clients only support local STDIO servers

Solution:

• Use mcp-remote as proxy to convert HTTP to STDIO
• Configuration: command: npx, args: [-y, mcp-remote, https://mcp.notion.com/mcp]
• Alternative: Use open-source notion-mcp-server for local deployment
• Check tool documentation for remote server support roadmap

MCP Server Not Connecting

Symptoms: Status shows "Disconnected" or "Error", Server not appearing in list, Connection timeout

Cause: Invalid configuration, missing dependencies, or server startup failure

Solution:

• Check librechat.yaml syntax is valid YAML
• Verify npx and Node.js are available (for stdio/command-based servers)
• Check server command and args are correct
• Review LibreChat logs for error messages: docker logs librechat
• Increase timeout value if server takes longer to initialize
• Ensure required ports are not blocked (for HTTP-based servers)

OAuth Authentication Failing

Symptoms: Status shows "OAuth Required", Redirect loop during auth, Token refresh errors

Cause: OAuth credentials not configured or redirect URLs incorrect

Solution:

• Verify OAuth clientId and clientSecret in librechat.yaml
• Check redirect URL is correctly set in OAuth provider settings
• Ensure authorizationUrl and tokenUrl are accessible
• Complete OAuth flow by clicking "Initialize" in MCP Settings panel
• Check browser console for OAuth-related errors

User Credentials Not Working

Symptoms: Prompts for credentials not appearing, Variables not substituted, Authentication errors

Cause: User credential variables incorrectly formatted or not entered

Solution:

• Use correct format: {{USER_VARIABLE_NAME}} in librechat.yaml
• Enter credentials through MCP Settings panel in UI
• Verify variable names match between config and UI
• Check credentials are saved per-user (not shared globally)

Tools Not Appearing in Chat

Symptoms: No tool dropdown available, MCP tools missing from interface, Server connected but tools unavailable

Cause: MCP server not properly integrated with chat endpoint or agent

Solution:

• Verify you are using an endpoint that supports MCP (not all models do)
• Check if Agent Builder is enabled and MCP tools are assigned to agent
• Restart chat session after adding new MCP servers
• Verify MCP server actually provides tools (some servers are resource-only)
• Check server logs to confirm tools are being discovered

Docker Deployment Problems

Symptoms: Container fails to start, Database connection errors, Port conflicts

Cause: Docker configuration issues or missing environment variables

Solution:

• Verify .env file is properly configured with all required variables
• Check MongoDB connection string is correct
• Ensure ports 3080 (frontend) and 3081 (backend) are available
• Run docker compose logs to view detailed error messages
• Verify Docker and Docker Compose versions meet minimum requirements

Performance Issues with MCP

Symptoms: Slow tool execution, Timeout errors, UI freezing during tool calls

Cause: Server timeout too short, inefficient MCP server, or network latency

Solution:

• Increase timeout values in librechat.yaml (both init and operation timeouts)
• Use HTTP transport instead of stdio for remote servers
• Monitor MCP server performance independently
• Consider caching for frequently accessed resources
• Use Streamable HTTP transport for production environments

Notion not appearing in LibreChat

Symptoms: Server not listed, Tools not available

Cause: Configuration or installation issue

Solution:

• Verify configuration syntax
• Check Notion installation
• Restart LibreChat
• Check logs for error messages

Next Steps

Now that Notion is integrated with LibreChat:

• Explore all Notion capabilities through LibreChat
• Check out other MCP servers that work with LibreChat
• Join the MCP community for tips and support
• Consider contributing to Notion development

Need Help?

• Search for Notion documentation
• Check the LibreChat MCP guide
• Join the MCP community discussions