Iso

ISO currency, language & subdivision codes. 3 pay-per-call iso endpoints for AI agents — keyless, USDC via x402.

iso.currency$0.0012

Look up an ISO 4217 currency.

GET /api/iso/currency

iso.language$0.0012

Look up an ISO 639 language.

GET /api/iso/language

iso.subdivision$0.0012

Look up ISO 3166-2 subdivisions (states, provinces, regions).

GET /api/iso/subdivision

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec
/llms.txt — plain-text manifest for LLM ingestion