Endpoint · actionPOSTagent402.tools /api/seller-payability
Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the…
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Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the token it names (the defect that silently makes a whole catalog unpayable), whether a stock client's signed payment was accepted, the settlement receipt and transaction, a slice of the response body, and the time each leg took. Ends in plain-English flags, never a score.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.10 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://agent402.tools/api/seller-payability
MCP server on this host: io.github.MikeyPetrillo/agent402
Seen
first 22 days ago · last 14 hr ago
40 free handshakes
Payment
Pays through
x402 · MPP evm
Offered on?
eip155:10, eip155:1329, Polygon, eip155:143, Arbitrum, eip155:42220, Avalanche, Robinhood Chain, Base USDC
Listed on?
Polygon, Arbitrum, Avalanche, Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.738 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.262: 0.114 uncertain ? + 0.149 short ? · 0.062 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.26 | 0.187 | 0.037 | −0.149 | −0.014 | |
| liveness it answered at all |
0.60 | 1.00 | 0.834 | 0.500 | 0 | −0.100 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.738 | gap to 1.000 = 0.262 · 0.149 short · 0.114 uncertain | 0.738 | −0.149 | −0.114 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.187 latency p95
+ 0.600 × 0.834 liveness
+ 0.200 × 1.000 price stability
= 0.738 → UNRATED: 37 of 30 paid calls weights 2026.09.6 · 37 samples · seed cap_01M2A29A4JSV8RRGCESJ97YQH7|2026-09-01T20:54:47.423Z|2026.09.6
Verify it yourself
npx teppi-check https://agent402.tools/api/seller-payabilitycurl -s https://api.teppi.xyz/v1/trust/cap_01M2A29A4JSV8RRGCESJ97YQH7