Attribute catalog

The list of document types accepted in credential.type.

The catalog is a public JSON file published by Unico at https://human-token-assets.unico.app/attribute-catalog.json. Check it for the codes you can use.

{
  "schema_version": 1,
  "version": "2026-10-29.1",
  "attributes": [
    { "code": "DUI_TYPE_BR_CPF", "country_code": "BRA" },
    { "code": "DUI_TYPE_NG_BVN", "country_code": "NGA" }
  ]
}

code is what you send in credential.type. Matching is exact and case-sensitive.
country_code is the ISO 3166-1 alpha-3 country that issues the document. Human Plugin answers it as countryCode in data.ndocs.

How Human Plugin uses it

Downloaded once at startup and kept in memory. A new catalog reaches Human Plugin on its next restart.
Human Plugin does not start if it cannot download a valid catalog within 10 seconds. Allow outbound HTTPS to human-token-assets.unico.app.
No client data is sent to the catalog host.
A create with a credential.type outside the catalog is refused with 422 ATTRIBUTE_TYPE_NOT_SUPPORTED, before anything is stored or sent.

How Human Plugin uses it​

How Human Plugin uses it