{"capability":"phone-jokes","providers":[{"endpoint":"https://x402-app.railhead.network/x402/phone-jokes","address":"0xf24645859f93B1e6DAE440fdD8D821258229F329","price_usdc":0.1,"capability":"phone-jokes","description":"Tells a joke","pricing":"fixed","challenge_audit":{"status":"ok","checked_at":1790825511.6225922}}]}