LibreChat MCP Servers

What is LibreChat MCP Servers?

A directory of Model Context Protocol (MCP) server implementations that extend LibreChat's capabilities via the Supergateway bridge, converting stdio MCP servers to SSE for Docker environments.

How to use LibreChat MCP Servers?

Create a server directory with a Dockerfile, update docker-compose.override.yml, and add the MCP server configuration to librechat.yaml as an SSE endpoint.

Key features of LibreChat MCP Servers

• Converts stdio MCP servers to SSE using Supergateway.
• Each server runs in its own Docker container.
• Consistent port numbering (8003+ for new servers).
• Uses environment variables for sensitive data.
• Follows least privilege principle for security.

Use cases of LibreChat MCP Servers

• Adding a Brave Search MCP server to LibreChat.
• Integrating any stdio-based MCP server with LibreChat.
• Securing MCP servers with API keys via environment variables.
• Providing file access to MCP servers through Docker volumes.

FAQ from LibreChat MCP Servers

What is the Supergateway bridge?

Supergateway converts stdio-based MCP servers to SSE, allowing LibreChat to connect to them over HTTP.

How do I add a new MCP server?

Create a directory with a Dockerfile, update docker-compose.override.yml, and configure the server in librechat.yaml.

What runtime does a server require?

Node.js 18 base image is used; MCP server packages are installed via npm.

Where does configuration live?

MCP server settings are in librechat.yaml, service definitions in docker-compose.override.yml, and secrets in environment variables.

What transport protocol is used?

Servers communicate via SSE (Server-Sent Events) after Supergateway bridges the stdio protocol.