Park

US National Park lookup. 1 pay-per-call park endpoint for AI agents — keyless, USDC via x402.

park.lookup$0.0012

Unified read API over US National Park Service developer.nps.gov.

GET /api/park/lookup

Discovery

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