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keyronne.com api chain-gas
https://keyronne.com/api/chain-gas
payable
Current gas price and EIP-1559 fee suggestions (base fee, priority tip, suggested max fee) on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain, in gwei. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"ethereum"}
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.003
- Network
- base
- Pay to
- 0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 9 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:08:53.844Z (3d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fkeyronne.com%2Fapi%2Fchain-gas"