x402-production-d123.up.railway.app

61.6 / 100 · rank 1966 of 1983

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

Availability20

Latency100

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)	71.0% of 62 probes · single vantage
Median 402 handshake	156ms
p90 handshake	164ms
Catalog price (advertised)	$0.05
Live price (median demanded)	$0.05
Price status	match
Protocol	x402 v2
Category (our classification)	finance-crypto
Payment receiver	0x9340…6f39 (+1 more) · stable since Jul 12
Base USDC inflow to this receiver wallet (30d, all sources — not just x402)	none observed
Discovery (.well-known/x402)	not found
Catalog volume (their metric)	2 calls/30d

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

/search/deep	$0.05	not yet probed
/search/fast	$0.01	not yet probed

grade evidence: hourly probes of /search/deep. Availability, latency and protocol measure the operator's shared infrastructure and generalize across its products; the price check applies to the probed product. We are beginning to probe secondary products, rotating one per hour.

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

Search Aggregator deep tier: Tavily+Exa+Firecrawl merged results with full page content and synthesized answer, fixed price $0.05 USDC. POST JSON body {query (required), max_results (optional 1-20, default 10)}. Mode is fixed by the path — no mode field …

Embed this grade (free, always current)

<a href="https://x402register.com/s/x402-production-d123.up.railway.app.html"><img src="https://x402register.com/badge/x402-production-d123.up.railway.app.svg" alt="x402 register grade C"></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-production-d123.up.railway.app? Dispute this rating. Scores are opinions based on automated measurements at the stated times.