{"name":"Music for Agents — Audio API","description":"Audio layer for the agentic web. Get sound URLs for any agent event.","version":"2.0.0","base_url":"https://audio.musicforagents.com","openapi_spec":"https://audio.musicforagents.com/openapi.yaml","auth":"X-Api-Key header required for paid endpoints","endpoints":{"free":{"GET /":"This document","GET /openapi.yaml":"Full OpenAPI 3.0 spec","GET /api/pricing":"Credit packages and pricing","GET /api/sounds":"All 17 sounds with metadata","GET /api/products":"Product catalog","GET /api/products/:id":"Single product details","GET /api/products/:id/samples":"Free preview URLs — no auth needed","GET /api/pay":"Agentic USDC payment instructions","GET /api/pay/status?tx=<hash>":"Poll for API key after payment","GET /api/license/verify?tx=<hash>":"Verify a purchase transaction"},"authenticated":{"GET /api/sound?event=<n>":"Get sound URL — costs 1 credit","GET /api/credits":"Check credit balance"}},"referral":"Append ?ref=yourcode to any URL for attribution tracking","products":["bm-002"]}