jev-x402-evil.vercel.app

82.7 / 100 · rank 1855 of 1971

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

Availability70

Latency90

Price integrity100

Protocol100

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)	96.8% of 62 probes · single vantage
Median 402 handshake	220ms
p90 handshake	1336ms
Catalog price (advertised)	$0.005
Live price (median demanded)	$0.005
Price status	match
Protocol	x402 v2
Category (our classification)	ai-services
Payment receiver	0xE813…2008 · stable since Jul 12
Base USDC inflow to this receiver wallet (30d, all sources — not just x402)	shared receiver wallet — total inflow is not attributable to this domain alone
Discovery (.well-known/x402)	not found
Catalog volume (their metric)	3 calls/30d

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

Structured evaluation with TypeSafe's Jev (System One) model. Send any state plus typed questions — noul (true/false), choice (pick one), or score (ordinal scale) — and get back calibrated probabilities and confidence for each. Built for routing, …

Embed this grade (free, always current)

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