X402/REGISTERas of 07-21 11:47 UTC

x402.professorsausages.com

91.7 / 100 · rank 1077 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

Latency88

Price integrity100

Protocol90

Consistency75

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	314ms
p90 handshake	1090ms
Catalog price (advertised)	$0.02
Live price (median demanded)	$0.02
Price status	match
Protocol	x402 mixed
Category (our classification)	finance-crypto
Payment receiver	0x54eb…0d5B · stable since Jul 12
Base USDC settlement to this receiver wallet (30d' measured by us)	x402-plausible (amount matches a listed price): $2 · 180 transfers · 4 distinct senders. All USDC inflow' upper bound incl. non-x402: $2 · 180 transfers.
Second vantage	confirmed 402 from a second network path (Cloudflare edge), 1h ago
Discovery (.well-known/x402)	present
Catalog volume (their metric)	9 calls/30d

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

/domain-intel/domain/domain/live	$0.015	$0.015 (matches)
/ens-resolve/address/address	$0.002	$0.002 (matches)
/ens-resolve/name/name	$0.001	$0.001 (matches)
/gas-oracle/chain	$0.001	$0.001 (matches)
/gas-oracle/chain/history	$0.003	$0.003 (matches)
/insider-trades/company/idOrTicker/summary	$0.02	$0.02 (matches)
/insider-trades/recent	$0.005	$0.005 (matches)
/token-safety/check/chain/address	$0.02	$0.02 (matches)
/13f-holdings/manager/cik	$0.02	not yet probed
/13f-holdings/manager/cik/changes	$0.03	not yet probed

and 96 more listed paths

grade evidence: hourly probes of /address-screen/check/chain/address. 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 106 products; the grade is evidence from a small sample of them.

Seller description of the probed product (one of 106 listed) · unverified · not part of the rating

Crypto address screening vs the FULL live OFAC SDN list, segmented by chain (bitcoin, evm, tron, +9 more) — EVM adds on-chain signals (contract, fresh wallet) → 0-100 risk score

Embed this grade (free, always current)

<a href="https://x402register.com/s/x402.professorsausages.com.html"><img src="https://x402register.com/badge/x402.professorsausages.com.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 x402.professorsausages.com? Dispute this rating. Scores are opinions based on automated measurements at the stated times.