Install

# CLI install
npm install -g @cyanheads/pubmed-mcp-server

MCP client config

{
  "command": "npx",
  "args": ["-y", "@cyanheads/pubmed-mcp-server"],
  "env": { "SPAWNPAY_API_KEY": "spk_live_..." }
}

Drop this into your Claude Desktop or Cursor config. Agents call the tool, payments settle automatically.

Make it paid

This MCP is currently free. Authors can wrap any tool in two lines using spawnpay-paywall to charge per call in USDC. Keep 99.5%, no payment infra.

// Node — npm install spawnpay-paywall
import { paywall } from 'spawnpay-paywall';
const myTool = paywall(
  { price: 0.005, vendor: 'SP_yourCode' },
  originalToolFn
);

About

Package: @cyanheads/pubmed-mcp-server
Version: 2.7.1
Author: cyanheads
Published: 2026-05-20
Keywords: pubmed, ncbi, biomedical, research, citations, mesh, mcp, model-context-protocol

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