https://agent-data-tools.revmesh2074.workers.dev/eth/is-contract
https://agent-data-tools.revmesh2074.workers.dev/eth/is-contractOverview
Check whether a 0x address on Ethereum is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or approving a spender; for a fuller risk verdict use check_counterparty. A malformed address is rejected with 400, uncharged.
Health
x402 Payment Validation
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-26 10:29:54 | healthy | 402 | 1195ms | |
| 2026-10-25 21:53:10 | healthy | 402 | 1190ms | |
| 2026-10-25 15:56:15 | healthy | 402 | 824ms | |
| 2026-10-24 21:53:17 | rate_limited | 429 | 51ms | |
| 2026-10-24 12:39:17 | healthy | 402 | 1266ms |