agent402.tools api gas-estimate

https://agent402.tools/api/gas-estimate

payable

Current gas price (gwei and wei) on Base, Polygon, Arbitrum, Optimism, Ethereum, or Robinhood Chain — for an agent budgeting a transaction. Read-only. ?network=base

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

Price: $0.002
Network: base
Pay to: 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: GET
Response latency: 97 ms
Payment options: 12 usable of 12
Last checked: 2026-08-10T09:17:41.039Z (1d ago)
Category: finance-crypto

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