x402check.dev

90.1 / 100 · rank 2628 of 3056

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

Latency92

Price integrity94

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	326ms
p90 handshake	475ms
Catalog price (advertised)	$0.01
Live price (median demanded)	$0.01
Price status	match
Protocol	x402 v2
Category (our classification)	finance-crypto
Payment receiver	0xd984…A86f · 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 · 4 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 5 transfers.
Discovery (.well-known/x402)	present
Catalog volume (their metric)	5 calls/30d

event log (from our catalog snapshots and probes)

2026-11-02 02:13

price changed $0.002 → $0.01

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

Check before paying any x402 tool: is this API a scam/safe? Trust-check one seller URL (live 402 + history). Use for verify-payTo, uptime, price/wallet drift, budget guard, validate 402, debug failing settle. Returns ok|caution|avoid + that tool's history …

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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 x402check.dev? Dispute this rating. Scores are opinions based on automated measurements at the stated times.