C
agent-contract-proof.mattskowronis.workers.dev
61.7 / 100 · rank 1610 of 1630
last 120 hours · short tick = valid 402 · full tick = invalid or no answer · faint = not probed
score components (0-100) · not the raw measurements below
Availability22
Latency95
Price integrity100
Protocol100
Consistency75
Availability is the one component that is a success rate, so it alone carries an evidence discount: it enters as the 95% Wilson lower bound of the measured share (cubed), which is why its bar reads below the raw percentage above — thin evidence scores below a long proven record. Latency, price, protocol and consistency are direct measurements, shown as-is.
| Availability (valid 402 returned) | 72.6% of 62 probes · single vantage |
| Median 402 handshake | 293ms |
| p90 handshake | 492ms |
| Catalog price (advertised) | $0.01 |
| Live price (median demanded) | $0.01 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | agent-tools |
| Payment receiver | 0x3a43…498F · changed 1× since Jul 12 |
| Base USDC inflow to this receiver wallet (30d, all sources — not just x402) | shared receiver wallet — total inflow is not attributable to this domain alone |
| Discovery (.well-known/x402) | present |
| Catalog volume (their metric) | 2 calls/30d |
event log (from our catalog snapshots and probes)
| 20260831 22:34 | payment receiver changed to 0x3a43…498F |
Seller-provided description · unverified · not part of the rating
Compare an agent's advertised contract with its live x402 challenge and return deterministic proof.
receiver-changed
Embed this grade (free, always current)
<a href="https://x402register.com/s/agent-contract-proof.mattskowronis.workers.dev.html"><img src="https://x402register.com/badge/agent-contract-proof.mattskowronis.workers.dev.svg" alt="x402 register grade C"></a>
What this grade does and doesn't measure: it scores the paid-request handshake — whether the service returns a spec-valid 402 payment challenge, how fast, and whether its price is honest. We do not pay these endpoints yet, so we do not verify that the paid response returns correct or complete content. Availability is a probe success rate measured hourly, from a single network vantage for this service.
Operator of agent-contract-proof.mattskowronis.workers.dev? Dispute this rating. Scores are opinions based on automated measurements at the stated times.