| Availability (valid 402 returned) | 100.0% of 62 probes · single vantage |
| Median 402 handshake | 350ms |
| p90 handshake | 510ms |
| Catalog price (advertised) | $0.1 |
| Live price (median demanded) | $0.1 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | data-intel |
| Payment receiver | 0xa790…5a4E · stable since Jul 12 |
| Base USDC settlement to this receiver wallet (30d' measured by us) | x402-plausible (amount matches a listed price): $0 · 2 transfers · 1 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 2 transfers. |
| Discovery (.well-known/x402) | not found |
| Catalog volume (their metric) | 3 calls/30d |
AUTO411 is a VIN lookup and vehicle data API for AI agents. Resolve a full VIN or year, make and model to a validated vehicle identity and configuration, then retrieve structured JSON vehicle specifications and available wheel and tire fitment including …
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 auto411-x402-prod.simonwakelin.workers.dev? Dispute this rating. Scores are opinions based on automated measurements at the stated times.