Api Endpoint

Additive Atlas

One substance, with the cross-axis derivation: what every other jurisdiction (JP, EU, US, Codex, IARC, JECFA, EFSA) says about it, with per-cell sources, kept separate from what was derived

Open interactive test console

Offering

Provider: api.additiveatlas.monon.space
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Health And Medicine
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://api.additiveatlas.monon.space/v1/substances/:id/diff
MIME type: application/json
First seen: 2026-10-16T01:50:38.788Z
Last seen: 2026-11-01T16:09:43.969Z
Tags: food-additives, regulation, labelling, eu, japan

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x6fFF720533330Bf937130F5542511754258d88DA"
  }
]

Observed health

Status: Healthy
Latest latency: 230 ms
Average latency: 417 ms
HTTP status: 402
Last checked: 2026-11-01T16:09:43.965Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {}
    },
    "pathParams": {
      "type": "object",
      "properties": {
        "id": {
          "type": "string",
          "description": "Substance id as returned by the free endpoints (GET /v1/substances?name=…&axis=…&lang=…, POST /v1/labels/analyze), e.g. eu:e330, jp:designated-aspartame, us:cfr-184-1033"
        }
      },
      "required": [
        "id"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "pathParams": {
          "properties": {
            "id": {
              "description": "Substance id as returned by the free endpoints (GET /v1/substances?name=…&axis=…&lang=…, POST /v1/labels/analyze), e.g. eu:e330, jp:designated-aspartame, us:cfr-184-1033",
              "type": "string"
            }
          },
          "required": [
            "id"
          ],
          "type": "object"
        },
        "queryParams": {
          "properties": {},
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "description": "What every other jurisdiction says about the substance (primary, with per-cell sources) kept separate from what was derived (derived: status, coverage, confidence); refusal when nothing can be concluded. Full response shape and vocabulary: /openapi.yaml on this host. Every record is a draft and needs verification; not a safety judgement.",
          "properties": {
            "meta": {
              "type": "object"
            },
            "substance": {
              "type": "object"
            }
          },
          "required": [
            "substance",
            "meta"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}