Jecfa MCP server

JECFA — Food Additive Safety Evaluations (WHO/FAO)

Safety evaluations from the Joint FAO/WHO Expert Committee on Food Additives: Acceptable Daily Intakes (ADIs), the committee's conclusions, dietary-exposure findings, and the meeting reports and toxicological monographs behind them — for food additives, flavourings, food contaminants and veterinary drug residues.

Part of Pipeworx — an MCP gateway connecting AI agents to 1576+ live data sources.

JECFA is the body whose ADI a regulator cites when it sets a limit. This pack answers "has this substance been evaluated, and what intake did the committee judge acceptable" — not "is it permitted in yogurt in the EU", which is the Codex GSFA / national-regulator question.

Tools

Coverage

3,245 substances: 777 food additives, 2,289 flavouring agents, 115 veterinary drugs, 64 food contaminants. Evaluations run from the committee's earliest meetings to the present — aspartame, for instance, carries evaluations from 1981 through the 2023 re-evaluation at meeting 96.

Auth

None. Keyless, no registration, no quota.

Data sources

• Database:
• About JECFA:

The database has no documented API. The endpoints this pack calls are the ones backing the site's own Kendo grid, read off the page. They are undocumented and unversioned, so they can drift without notice; the pack's own gotcha comments (top of src/index.ts) record the shapes that were verified live.

Gotchas

Five upstream behaviours produce confidently wrong answers if taken at face value. All are guarded in the pack, but they matter if you extend it:

1. /SearchChemical/ByPartialName fabricates a row. It prepends your query string as a result with Id: 0 and a blank ADI — the UI's "search for this literal text" affordance. Pass it through and you have invented a substance that was never evaluated. The pack drops every row with Id <= 0.

1. The same endpoint returns CASNO: null even when you searched by CAS. Searching 50-70-4 correctly finds SORBITOL, then reports its CAS as null. Only /ChemicalData/GetBy/par/ returns populated records, which is what jecfasearch actually calls.

1. /ChemicalData/GetBy/fir/ wants the character, not the id. Its companion /FilterData/Get/FirstCharacter hands you {"Id": 65, "Name": "A"}; passing 65 returns HTTP 500, passing A returns 501 rows.

1. INS/E-numbers are not searchable at all. ByPartialName/951 returns zero rows — INS numbers exist only on the server-rendered detail page. So jecfasearch resolves them through INSINDEX, a build-time harvest of all 777 additive detail pages (486 carry an INS). Regenerate with node mcps/jecfa/scripts/build-ins-index.mjs after a meeting adds substances.

Shortened. The full README is on GitHub.