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mcp/harbor
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chembl mcp server MCP

v0.6.0 changelog · 10

io.github.cyanheads/chembl-mcp-server

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

transport:streamable-http runtime:npm tools:8
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Target client

run in your project directory 

claude mcp add --transport http chembl-mcp-server https://chembl.caseyjhand.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

chembl_search_molecules

chembl search molecules

chembl_get_bioactivities

chembl get bioactivities

chembl_search_targets

chembl search targets

chembl_get_drug_info

chembl get drug info

chembl_get_assay

chembl get assay

chembl_get_documents

chembl get documents

chembl_dataframe_query

chembl dataframe query

chembl_dataframe_describe

chembl dataframe describe

All 8 tools, one page each

1 resource you attach as context

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.