agent402.tools api chain-info

https://agent402.tools/api/chain-info

payable

One-call chain state snapshot: chain id, latest block number, and current gas price (wei + gwei) for Ethereum, Base, Polygon, Arbitrum, or Optimism. Keyless multi-endpoint failover. ?network=base

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

Price: $0.001
Network: base
Pay to: 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: GET
Response latency: 135 ms
Payment options: 12 usable of 12
Last checked: 2026-08-10T09:13:34.253Z (1d ago)
Category: finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fchain-info"