Counterparty x402 REST
POST /check/counterparty -- Check a 402 challenge you are about to pay against what you expected: wrong payTo, wrong asset, wrong host, price above your ceiling. Verdict, score and reasons back.
agent-exec.448c.org · 3 listed services · provider site
POST /check/counterparty -- Check a 402 challenge you are about to pay against what you expected: wrong payTo, wrong asset, wrong host, price above your ceiling. Verdict, score and reasons back.
POST /execute -- Execute python3/node code in an isolated, network-less sandbox; returns stdout, stderr, exit code as JSON. No account needed -- pay per request over x402. Tier: default ($0.0010).
POST /relay -- Send USDC from a wallet that holds no gas: you sign an EIP-3009 TransferWithAuthorization, we broadcast it on Base with our ETH. Flat fee, paid in USDC. A refused order costs nothing.
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