Community

io.github.cyanheads/chembl-mcp-server

Link compounds to protein targets, rank bioactivity, and look up drug mechanisms and indications.

Install

Add the config to your client settings. Replace values in <angle brackets> with your own.

claude_desktop_config.json

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server@0.4.0"
      ],
      "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_MAX_CONCURRENT_PAGES": "4",
        "CHEMBL_SPILL_DEADLINE_MS": "45000",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "false",
        "MCP_LOG_LEVEL": "info"
      }
    }
  }
}

Details

Name: io.github.cyanheads/chembl-mcp-server
Version: 0.4.0
Updated: Oct 18, 2026
Source: Official MCP Registry
Repository: https://github.com/cyanheads/chembl-mcp-server