Endpoint · onchainGETapi.onesource.io /api/chain/erc20-balance ?address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045&contract=0xdac17f958d2ee523a2206206994597c13d831ec7&network=ethereum
ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC
Overview
Grade?
B 0.848 ▲ 0.076 · 7 d
on 42 paid calls · outcome verified
Price
$0.003 per call
Paid calls
43
42 delivered · 1 no answer
More info
Seller?
URL
https://api.onesource.io/api/chain/erc20-balance?address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045&contract=0xdac17f958d2ee523a2206206994597c13d831ec7&network=ethereum
Seen
first 34 days ago · last 8 hr ago
78 free handshakes
Payment
Pays through
x402 · MPP tempo
Offered on?
Base USDC, Tempo USDC.e
Listed on?
Base
Scoreweights 2026.09.6
B
0.848 ▲ 0.076 · 7 d
42 paid calls · 90 days · computed 18 hr ago
0.848
0.450.650.800.90
Held back by sample size, not by the seller · gap to 1.000 is 0.152: 0.146 uncertain ? + 0.006 short ? · 0.052 to A
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| correctnesscosts the most the answer was right |
0.41 | 1.00 | 0.838 | 0.345 | 0 | −0.067 | |
| honesty it charged what it advertised |
0.29 | 1.00 | 0.854 | 0.251 | 0 | −0.043 | |
| liveness it answered at all |
0.18 | 0.98 | 0.820 | 0.145 | −0.003 | −0.029 | |
| latency p95 it answered as fast as its class |
0.06 | 0.95 | 0.825 | 0.049 | −0.003 | −0.007 | |
| price stability the price stayed where it was listed |
0.06 | 1.00 | 1.000 | 0.059 | 0 | 0 | |
| Composite | 1.00 | 0.848 | gap to 1.000 = 0.152 · 0.006 short · 0.146 uncertain | 0.848 | −0.006 | −0.146 |
Not measured: schema conformance · no answer had a published shape to check
The multiplication, written out
0.412 × 0.838 correctness
+ 0.294 × 0.854 honesty
+ 0.176 × 0.820 liveness
+ 0.059 × 0.825 latency p95
+ 0.059 × 1.000 price stability
= 0.848 ≥ 0.80 → B weights 2026.09.6 · 42 samples · seed cap_01M1A51MC12YAADKV2H9K67MHX|2026-07-05T19:06:19.953Z|2026.09.6
Verify it yourself
npx teppi-check https://api.onesource.io/api/chain/erc20-balance?address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045&contract=0xdac17f958d2ee523a2206206994597c13d831ec7&network=ethereumcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51MC12YAADKV2H9K67MHX