Additive Atlas

Look up substances by name on one regulatory axis (same as HTTP GET /v1/substances?name=…). The name is normalised (NFKC, whitespace removed, lower-cased) and matched **exactly** against the names and aliases the axis itself uses in that language (E numbers and official names for EU, 品目名 and label terms for JP, CFR names for US) — no partial or fuzzy matching. The official name is an alias of itself. Returns the matching substances (SubstanceSummary: facts from their own roster only) and, per row, what text matched. `axis` and `lang` must be one of the accepted pairs: JP+ja, US+en, EU+nl, EU+fr, EU+de, EU+es, EU+pl, EU+el, EU+bg. Not a safety judgement: every record is a draft and needs verification.

One substance with everything its own roster says (same as HTTP GET /v1/substances/{id}): identifiers, category, aliases, translations, the source-ledger row, groups, and — depending on the axis — Japanese use standards, EU/Codex conditions of use, mandatory labelling statements, the roster's definition text or the CFR citation. Facts from the substance's own axis only; nothing here crosses an axis (that is get_substance_diff, paid, HTTP only). Axis-specific keys are present only where the roster has that concept, and an empty list means something (use_standards: [] = no use standard; use_conditions: [] = no permitted food category). Not a safety judgement: every record is a draft and needs verification.

Find the additives named on a label (same as HTTP POST /v1/labels/analyze). Splits the additive section into tokens and returns, per token, the substances it resolves to (SubstanceSummary: facts on their own axis), plus known interactions between the detected substances. Cutting the additive section out of the label is the caller's job; sending the whole ingredient section is allowed. Matching is exact against the alias vocabulary in scope: a token with matches: [] is unresolved, which (open world) does not distinguish "not an additive" from "an additive not known here". `axis` and `lang` must be one of the accepted pairs: JP+ja, US+en, EU+nl, EU+fr, EU+de, EU+es, EU+pl, EU+el, EU+bg. Not a safety judgement: every record is a draft and needs verification.

(Paid; not available through MCP.) For every axis other than the substance's own, what that axis says (with a per-cell source) kept separate from what was derived from it; when nothing can be concluded, a refusal says why and what would settle it. This tool does not return that data: it returns the HTTP endpoint (GET /v1/substances/{id}/diff, 0.01 USDC per request via x402 on Base) to call instead.

(Paid; not available through MCP.) Same input as analyze_label, but each detected substance carries the cross-axis derivation. This tool does not return that data: it returns the HTTP endpoint (POST /v1/labels/analyze/diff with the same JSON body, 0.01 USDC per request via x402 on Base) to call instead.