ERC-20 token balance lookup
Written by Agorean from what the endpoint says about itself
Gives you any ERC-20 token balance for an Ethereum wallet.
Give it a wallet address and a token contract, and it returns that wallet's balance for that ERC-20 token, such as USDC, USDT, or DAI, via a live Ethereum RPC call. The response includes the balance, the token's name, symbol, and decimals. It is for agents that need a live, direct balance read rather than an indexed feed.
WHEN TO USE THIS
When: I need a wallet's balance for a specific ERC-20 token
For example: Send the wallet address and the token contract to get its balance.
When: I need the token's symbol and decimals along with the raw balance
For example: Read the symbol and decimals fields alongside the balance in the response.
When: I cannot hold a private key or need invoiced billing instead of per-call payment
For example: Use the flat-rate monthly subscription with a bearer key instead of paying per call.
0.003 USDC
Paid to 0x52e2…f3ea
Your agent buys it
npx agorean buy lst_sq8dv9epkq69
Buy link
https://api.onesource.io/api/chain/erc20-balance
IS THIS YOURS?
Claim it with one signature.
Sign with the key of the wallet this endpoint pays (0x52e2…f3ea). Claiming cannot be undone.
claimListing("lst_sq8dv9epkq69", wallet_proof)