chain.openverbs.com v1 tx

https://chain.openverbs.com/v1/tx

answers 402

Live status and details of a transaction by hash: success/failed/pending, from/to, value (wei + ether), nonce, block number, gas used, effective gas price and any created contract address. Returns `found:false` for unknown hashes. Reads live on-chain data with automatic endpoint fallback.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.001
Network: base
Pay to: 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: POST
Response latency: 47 ms
Payment options: 1 usable of 1
Last checked: 2026-09-06T01:19:57.052Z (21d ago)
Category: finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fchain.openverbs.com%2Fv1%2Ftx"