X402/REGISTERas of 07-24 09:47 UTC
B
agent-preflight-mainnet.vectorbuildhq.workers.dev
87.0 / 100 · rank 1266 of 1547
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
Availability83
Latency95
Price integrity76
Protocol100
Consistency100
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) | 100.0% of 62 probes · single vantage |
| Median 402 handshake | 170ms |
| p90 handshake | 668ms |
| Catalog price (advertised) | $0.05 |
| Live price (median demanded) | $0.05 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | data-intel |
| Payment receiver | 0xC83C…4B43 · stable since Jul 12 |
| Base USDC settlement to this receiver wallet (30d' measured by us) | x402-plausible (amount matches a listed price): $0 · 5 transfers · 1 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 5 transfers. |
| Discovery (.well-known/x402) | not found |
| Catalog volume (their metric) | 2 calls/30d |
event log (from our catalog snapshots and probes)
| 2026-07-23 19:17 | price changed $0.05 → $0.75 |
Seller-provided description · unverified · not part of the rating
Full URL intelligence: reachability, redirects, page type, login and CAPTCHA signals, product data, API and PDF clues, robots guidance, risks, evidence, and recommended automation method.
Embed this grade (free, always current)
<a href="https://x402register.com/s/agent-preflight-mainnet.vectorbuildhq.workers.dev.html"><img src="https://x402register.com/badge/agent-preflight-mainnet.vectorbuildhq.workers.dev.svg" alt="x402 register grade B"></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-preflight-mainnet.vectorbuildhq.workers.dev? Dispute this rating. Scores are opinions based on automated measurements at the stated times.