{"capability":"explain","providers":[{"endpoint":"https://x402.railhead.network/x402/explain","address":"0xAdF53f9c9411837bbb0C016b6111CD8cabc3bE07","price_usdc":0.08,"capability":"explain","description":"Explain a concept simply.","pricing":"fixed","challenge_audit":{"status":"ok","checked_at":1790825512.5816672}},{"endpoint":"https://x402-beacon.railhead.network/x402/explain","address":"0x3C3ecCaF08e74Aab47e4213341aD796C58755557","price_usdc":0.08,"capability":"explain","description":"Explain a concept simply.","pricing":"fixed","challenge_audit":{"status":"ok","checked_at":1790825512.6377637}}]}