Install chembl-mcp-server for Claude Desktop
Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.
- Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
- Paste the JSON config below.
- Replace placeholder secrets, then restart the client if it does not reload on its own.
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"cyanheads-chembl-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/chembl-mcp-server@0.3.3"
],
"env": {
"CANVAS_PROVIDER_TYPE": "none",
"CHEMBL_API_BASE_URL": "https://www.ebi.ac.uk/chembl/api/data",
"CHEMBL_REQUEST_TIMEOUT_MS": "30000",
"CHEMBL_MAX_PAGE_SIZE": "1000",
"CHEMBL_DEFAULT_LIMIT": "25",
"CHEMBL_MAX_SPILL_ROWS": "50000",
"CHEMBL_DATAFRAME_DROP_ENABLED": "false",
"MCP_LOG_LEVEL": "info"
}
}
}
}