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mcp/harbor
Verified official

ensembl mcp server MCP

v0.7.1 changelog · 11

io.github.cyanheads/ensembl-mcp-server

Look up genes, sequences, variants, homologs, and cross-database xrefs from Ensembl REST.

transport:streamable-http runtime:npm tools:7
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Target client

run in your project directory 

claude mcp add --transport http ensembl-mcp-server https://ensembl.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

ensembl_list_species

ensembl list species

ensembl_lookup_gene

ensembl lookup gene

ensembl_get_sequence

ensembl get sequence

ensembl_query_region

ensembl query region

ensembl_predict_variant

ensembl predict variant

ensembl_get_homology

ensembl get homology

ensembl_get_xrefs

ensembl get xrefs

All 7 tools, one page each

1 prompt you invoke yourself

10 resources 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.