X402/REGISTERas of 07-21 11:47 UTC

quartermaster.surewhynot.app

93.6 / 100 · rank 871 of 1519

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

Availability93

Latency78

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 160 probes
Median 402 handshake	534ms
p90 handshake	694ms
Catalog price (advertised)	$0.002
Live price (median demanded)	$0.002
Price status	match
Protocol	x402 v2
Category (our classification)	data-intel
Payment receiver	0x5253…19cb (+1 more) · changed 2× since Jul 12
Base USDC settlement to this receiver wallet (30d' measured by us)	x402-plausible (amount matches a listed price): $1 · 354 transfers · 28 distinct senders. All USDC inflow' upper bound incl. non-x402: $7 · 364 transfers.
Second vantage	confirmed 402 from a second network path (Cloudflare edge), 2h ago
Discovery (.well-known/x402)	present
Catalog volume (their metric)	46 calls/30d

listed products (catalog path · advertised price · live price we measured)

/v1/base/allowance	$0.001	$0.001 (matches)
/v1/base/wallet-report	$0.04	$0.04 (matches)
/v1/deep-read	$0.05	$0.05 (matches)
/v1/extract	$0.005	$0.005 (matches)
/v1/tldr	$0.005	$0.005 (matches)
/v1/translate	$0.005	$0.005 (matches)
/v1/balance	$0.001	not yet probed
/v1/base/contract	$0.001	not yet probed
/v1/base/token-info	$0.001	not yet probed
/v1/base64	$0.001	not yet probed

and 32 more listed paths

grade evidence: hourly probes of /v1/embed. Availability, latency and protocol measure the operator's shared infrastructure and generalize across its products; the price check applies to the probed product. We now also probe one other product per hour, rotating; "live price we measured" shows what each answered. This operator lists 42 products; the grade is evidence from a small sample of them.

event log (from our catalog snapshots and probes)

20260720 09:34	payment receiver changed to 0x5253…19cb, FgcKNz…zXfa
20260717 21:51	payment receiver changed to 0x5253…19cb, 0xc2a3…4083, FgcKNz…zXfa

Seller description of the probed product (one of 42 listed) · unverified · not part of the rating

Text embeddings for semantic search and RAG: one vector per call, 1024 dimensions.

receiver-changed

Embed this grade (free, always current)

<a href="https://x402register.com/s/quartermaster.surewhynot.app.html"><img src="https://x402register.com/badge/quartermaster.surewhynot.app.svg" alt="x402 register grade A"></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 quartermaster.surewhynot.app? Dispute this rating. Scores are opinions based on automated measurements at the stated times.