~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.json~/.config/Claude/claude_desktop_config.json{
"mcpServers": {
"pubmed": {
"command": "npx",
"args": [
"-y",
"@cyanheads/pubmed-mcp-server@latest"
],
"env": {
"MCP_TRANSPORT_TYPE": "stdio",
"MCP_LOG_LEVEL": "info",
"NCBI_API_KEY": "your-key-here"
}
}
}
}