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X402 Echo

Cheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET /x402-echo/sample.

POST https://x402.agentindex.world/x402-echo

0.001 USDC on Base · payTo 0x3cedc3Cba49c3809EE46B9bf60da75d6607b45Ec

Status: unverified (probe-pending)

Settlement: direct to the seller's payTo — 0% HIVE402 take

Payment routes