Esmfold

MCP server wrapping the ESM Metagenomic Atlas — Meta AI's open atlas of ~617M precomputed protein structure predictions.

Tools (Code Mode)

• esmfold_search(query) — discover Atlas catalog endpoints
• esmfold_execute(code) — run JavaScript in a V8 isolate against the Atlas REST API via api.get() / api.post() over the catalog paths
• esmfold_get_schema(data_access_id?) — list/describe staged tables
• esmfold_query_data(data_access_id, sql) — SQL over staged Atlas data (PDB text stays as TEXT)

Atlas-only — live folding is OUT OF SCOPE

POST /foldSequence/v1/pdb/ (live structure prediction) is intentionally not routed by this server. Sequence prediction jobs take 5–60+ seconds and exceed the 30s Worker CPU budget. The catalog does not advertise it; the api-adapter returns HTTP 501 if it is requested directly.

Live folding is deferred to a future Cloudflare Workflow plan. See:

• docs/plans/2026-04-16-life-science-expansion.md §13.1
• docs/adr/ADR-005-workflow-async-mcp-servers.md

Endpoints

• Atlas API base: https://api.esmatlas.com
• Atlas web: https://esmatlas.com

Local dev

./scripts/dev-servers.sh esmfold