pubmed-mcp-server

MCP server for PubMed/NCBI E-utilities. Search, fetch, cite, and explore biomedical literature.

stdio v2.1.6

Connection Configuration

Add this to your AI agent's MCP config file to connect.

Run in your terminal:

claude mcp add io.github.cyanheads--pubmed-mcp-server -- bun

Transport

stdio

Authentication

None

Version

v2.1.6

Server Name

io.github.cyanheads/pubmed-mcp-server

Last Updated

Mar 9, 2026

How to install and connect this MCP server.

Environment variables you must provide when running this server.

Variable	Description	Required
`MCP_LOG_LEVEL`	Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').	Optional
`NCBI_API_KEY`	NCBI API key for higher rate limits (10 req/s vs 3 req/s).	Optional
`NCBI_ADMIN_EMAIL`	Contact email sent with NCBI requests (recommended by NCBI).	Optional
`MCP_HTTP_HOST`	The hostname for the HTTP server.	Optional
`MCP_HTTP_PORT`	The port to run the HTTP server on.	Optional
`MCP_HTTP_ENDPOINT_PATH`	The endpoint path for the MCP server.	Optional
`MCP_AUTH_MODE`	Authentication mode to use: 'none', 'jwt', or 'oauth'.	Optional