onesource.io

https://api.onesource.io

● healthy general

ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC -- reliability 92.19999694824219/100 per Paygent Discover

How to call

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

curl -X POST https://api.onesource.io

/.well-known/x402.json

https://api.onesource.io/.well-known/x402