x402-seller.558686.xyz

78.0 / 100 · rank 1346 of 1501

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

Latency60

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)	96.7% of 61 probes · single vantage
Median 402 handshake	1000ms
p90 handshake	2282ms
Catalog price (advertised)	$0.006
Live price (median demanded)	$0.006
Price status	match
Protocol	x402 v2
Category (our classification)	ai-services
Payment receiver	0x1f01…9a2f · 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)	present
Catalog volume (their metric)	1 calls/30d

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

/v1/tools/x402-buyer-shortlist	$0.002	$0.002 (matches)
/v1/tools/x402-mcp-integration-kit	$0.006	$0.006 (matches)

grade evidence: hourly probes of /v1/tools/x402-mcp-integration-kit. 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.

event log (from our catalog snapshots and probes)

2026-07-28 11:17

price changed $0.002 → $0.006

Seller description of the probed product (one of 2 listed) · unverified · not part of the rating

Generate a deterministic MCP and Claude Desktop buyer integration kit with x402 quote, spend-cap, receipt, and same-request retry instructions.

Embed this grade (free, always current)

<a href="https://x402register.com/s/x402-seller.558686.xyz.html"><img src="https://x402register.com/badge/x402-seller.558686.xyz.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 x402-seller.558686.xyz? Dispute this rating. Scores are opinions based on automated measurements at the stated times.