ToolAssay

Looks up a barcode number across Open Food Facts and a general product database,

Looks up a barcode number across Open Food Facts and a general product database, returning product name, brand, category, packaging, quantity and images where present. The check digit is computed locally before anything is queried: an invalid number is a typo, and reporting it as not found would send the caller looking in the wrong place.

Not tested: has real-world effectsour last check, 2026-10-18
0 of 0checks answered this week
n/amedian answer time
$0.005listed price per call
n/aprice it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://handel.halowerk.com/v1/gtin-resolve

CategoryImage and media
Provider hosthandel.halowerk.com
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days2 from 2 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "body": {
    "gtin": "4006381333931",
    "sources": [
      "openfoodfacts"
    ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "gtin": {
              "description": "EAN-8, EAN-13, UPC-A or GTIN-14.",
              "maxLength": 14,
              "minLength": 8,
              "type": "string"
            },
            "skip_checksum": {
              "default": false,
              "description": "Query even when the check digit is wrong.",
              "type": "boolean"
            },
            "sources": {
              "description": "Which sources to query. Both if omitted.",
              "items": {
                "enum": [
                  "openfoodfacts",
                  "upcitemdb"
                ],
                "type": "string"
              },
              "type": "array"
            }
          },
          "required": [
            "gtin"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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