| Availability (valid 402 returned) | 100.0% of 66 probes · single vantage |
| Median 402 handshake | 744ms |
| p90 handshake | 813ms |
| Catalog price (advertised) | $0.005 |
| Live price (median demanded) | $0.005 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | data-intel |
| Payment receiver | 0x88f7…f33b · stable since Jul 12 |
| On-chain settlement | testnet listing · no mainnet settlement to measure |
| Discovery (.well-known/x402) | present |
| Catalog volume (their metric) | 2 calls/30d |
Base Sepolia testnet only. One bounded public URL evidence packet: title, metadata, JSON-LD, text extract, links, timestamp and SHA-256. No JavaScript rendering, credentials or private-network access. 0.005 test USDC; no real revenue.
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 machine-works-testnet.weathered-dew-46b4.workers.dev? Dispute this rating. Scores are opinions based on automated measurements at the stated times.