X402/REGISTERas of 07-23 06:47 UTC

assay.nominal-labs.com

87.9 / 100 · rank 1239 of 1524

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

Latency69

Price integrity100

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
Median 402 handshake	728ms
p90 handshake	766ms
Catalog price (advertised)	$0.005
Live price (median demanded)	$0.005
Price status	match
Protocol	x402 v2
Category (our classification)	finance-crypto
Payment receiver	0x7090…40d0 · stable since Jul 12
Base USDC settlement to this receiver wallet (30d' measured by us)	x402-plausible (amount matches a listed price): $0 · 1 transfers · 1 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 1 transfers.
Second vantage	confirmed 402 from a second network path (Cloudflare edge), just now
Discovery (.well-known/x402)	not found
Catalog volume (their metric)	2 calls/30d

Seller-provided description · unverified · not part of the rating

Quality score for any x402 service, earned by real paid probes with on-chain receipts: composite 0-100, component breakdown (payment settlement, schema conformance, ground-truth accuracy, LLM-judged quality), 7-day trend, probe count. Scores publish only …

Embed this grade (free, always current)

<a href="https://x402register.com/s/assay.nominal-labs.com.html"><img src="https://x402register.com/badge/assay.nominal-labs.com.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, corroborated by a second network path for this service.

Operator of assay.nominal-labs.com? Dispute this rating. Scores are opinions based on automated measurements at the stated times.