Endpoint · onchainGETapi.onesource.io /api/chain/allowance ?contract=0xdac17f958d2ee523a2206206994597c13d831ec7&network=ethereum&owner=0xd8da6bf26964af9d7eed9e03e53415d37aa96045&spender=0x6b175474e89094c44da98b954eedeac495271d0f
ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet
Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.003 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.onesource.io/api/chain/allowance?contract=0xdac17f958d2ee523a2206206994597c13d831ec7&network=ethereum&owner=0xd8da6bf26964af9d7eed9e03e53415d37aa96045&spender=0x6b175474e89094c44da98b954eedeac495271d0f
Seen
first 34 days ago · last 9 hr ago
78 free handshakes
Payment
Pays through
x402 · MPP tempo
Offered on?
Base USDC, Tempo USDC.e
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.819 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.181: 0.103 uncertain ? + 0.078 short ? · 0.081 to A
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.73 | 0.542 | 0.108 | −0.054 | −0.037 | |
| liveness it answered at all |
0.60 | 0.96 | 0.851 | 0.511 | −0.023 | −0.066 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.819 | gap to 1.000 = 0.181 · 0.078 short · 0.103 uncertain | 0.819 | −0.078 | −0.103 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.542 latency p95
+ 0.600 × 0.851 liveness
+ 0.200 × 1.000 price stability
= 0.819 → UNRATED: 60 of 30 paid calls weights 2026.09.6 · 60 samples · seed cap_01M1A51MG95Q1Y5K73EYBAT98P|2026-08-29T11:10:53.367Z|2026.09.6
Verify it yourself
npx teppi-check https://api.onesource.io/api/chain/allowance?contract=0xdac17f958d2ee523a2206206994597c13d831ec7&network=ethereum&owner=0xd8da6bf26964af9d7eed9e03e53415d37aa96045&spender=0x6b175474e89094c44da98b954eedeac495271d0fcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51MG95Q1Y5K73EYBAT98P