api.onesource.io
answeringERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC
- Endpoint
- https://api.onesource.io/api/chain/erc20-balance
- Price
- $0.003 / call
- Settles via
- cdp
- Category
- —
- Last seen live
- Tue, 08 Sep 2026 05:24:04 UTC
- Last probed
- Tue, 08 Sep 2026 05:24:04 UTC
- First indexed
- Tue, 08 Sep 2026 05:22:22 UTC
- Sources
- cdp-x402
Probe history
Last 1 probes, newest on the right. 100% answered with a payment challenge.
| When | Result | Method | Status | Latency |
|---|---|---|---|---|
| Tue, 08 Sep 2026 05:24:03 UTC | challenge | http-402 | 402 | 595 ms |
JSON: /api/v1/services/api.onesource.io. Own this service? Update the listing.