{"protocols":[{"id":"prepaid","kind":"ledger","currency":"KZT","call_endpoint":"https://get4agent.com/v1/call/{listing_id}","balance_endpoint":"https://get4agent.com/v1/accounts/{agent_id}","auth":"regent control key headers (X-Control-Key, X-Agent-Id, X-Agent-Intent)","notes":"Governed rail: every call passes the Regent gate (mandate + policy)."},{"id":"x402","kind":"http-402","network":"base-sepolia","asset":"USDC","price_usd":"0.01","call_endpoint":"https://get4agent.com/v1/x402/call/{listing_id}","facilitator":"https://x402.org/facilitator","notes":"Per-call stablecoin payment (x402 v1). Testnet on this deployment."}],"instructions":"https://get4agent.com/AGENTS.md"}