generated: '2026-09-16'
method: derived
source: >-
  Derived from openapi/unirateapi-openapi.yaml and https://unirateapi.com. Currency/FX is a
  domain with reference code standards (ISO 4217, ISO 3166) rather than a callable API
  interoperability standard, so this is a reward-only, honest record of what the contract
  actually conforms to.
conformance:
- id: iso4217
  conforms: true
  evidence: >-
    All currency codes are ISO 4217 alpha-3 (from/to/base parameters, CurrenciesList schema).
    The provider also publishes an ISO 4217 reference at https://unirateapi.com/currency-codes.
  note: Domain code standard, not a message/interop standard.
- id: iso3166
  conforms: true
  evidence: >-
    VAT endpoints key on ISO-3166 alpha-2 country codes (Country parameter, VatEntry.country_code).
- id: rfc9457
  conforms: false
  evidence: 'Errors are a flat {"error": "..."} object with content-type application/json, not application/problem+json.'
- id: oauth2
  conforms: false
  evidence: Authentication is an api_key query parameter; no OAuth2/OIDC.
- id: pagination
  conforms: false
  evidence: No paginated collections; responses are complete maps/arrays.
- id: idempotency
  conforms: false
  evidence: Read-only GET surface; no idempotency mechanism (none needed).
domain_standard:
  present: false
  note: >-
    The FX/currency market has reference DATA standards (ISO 4217/3166, ECB reference rates —
    UniRate cites the European Central Bank as its historical data source) but no callable API
    interoperability standard (unlike PSD2/FDX in banking). No domain_standard_conformance claimed.