X402/REGISTERas of 07-21 10:47 UTC
A

api.certaindata.ai

92.9 / 100 · rank 937 of 1511
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
Latency73
Price integrity100
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 160 probes
Median 402 handshake626ms
p90 handshake913ms
Catalog price (advertised)$0.015
Live price (median demanded)$0.015
Price statusmatch
Protocolx402 v2
Category (our classification)ai-services
Payment receiver0x2b87…bb39 · stable since Jul 12
Base USDC settlement to this receiver wallet (30d' measured by us)x402-plausible (amount matches a listed price): $0 · 31 transfers · 8 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 32 transfers.
Second vantageconfirmed 402 from a second network path (Cloudflare edge), just now
Discovery (.well-known/x402)not found
Catalog volume (their metric)22 calls/30d

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

/ca054d66abad4d6ea80ba43013b61743-cd/country-lookup/input$0.007$0.007 (matches)
/ca054d66abad4d6ea80ba43013b61743-cd/fx-rate/fx/base/quote$0.007$0.007 (matches)
/ca054d66abad4d6ea80ba43013b61743-cd/fx-rates/base$0.007$0.007 (matches)
/ca054d66abad4d6ea80ba43013b61743-cd/ip-geolocation/address$0.007$0.007 (matches)
/7257ccd9b08145e0808a9507e63035e9-cd/certified-good-boy/breed/breed/images/rando$0.015not yet probed
/id/country-lookup/US$0.0022not yet probed
/ca054d66abad4d6ea80ba43013b61743-cd/bin-lookup/bin$0.015not yet probed
/ca054d66abad4d6ea80ba43013b61743-cd/country-data/iso2$0.007not yet probed
/ca054d66abad4d6ea80ba43013b61743-cd/holidays/iso2/year$0.007not yet probed

grade evidence: hourly probes of /ca054d66abad4d6ea80ba43013b61743-cd/bin-lookup/bin. 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)

2026-07-15 17:15price changed $0.007 → $0.015
Seller description of the probed product (one of 9 listed) · unverified · not part of the rating

Scheme, type, brand, issuer bank and country, and payout settings for a card BIN.

Embed this grade (free, always current)
x402 register grade A
<a href="https://x402register.com/s/api.certaindata.ai.html"><img src="https://x402register.com/badge/api.certaindata.ai.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 api.certaindata.ai? Dispute this rating. Scores are opinions based on automated measurements at the stated times.