chain-scan.com

● down general

Single-call Etherscan / Basescan query. Proxies the Etherscan API V2 unified endpoint: pass any module/action and chainid, get the raw JSON back. Covers Ethereum, Base, Arbitrum, Optimism, Polygon and other supported chains.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://chain-scan.com

/.well-known/x402.json

https://chain-scan.com/.well-known/x402