X402/REGISTERas of 07-21 11:47 UTC

www.buywith402.com

32.5 / 100 · rank 1518 of 1519

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

Availability0

Latency100

Price integrity0

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)	10.0% of 160 probes · single vantage
Median 402 handshake	228ms
p90 handshake	285ms
Catalog price (advertised)	$19.86
Live price (median demanded)	$0.1
Price status	mismatch (-99% vs advertised)
Protocol	x402 v2
Category (our classification)	finance-crypto
Payment receiver	0xF508…17c4 · stable since Jul 12
Base USDC settlement to this receiver wallet (30d' measured by us)	x402-plausible (amount matches a listed price): $71 · 7 transfers · 2 distinct senders. All USDC inflow' upper bound incl. non-x402: $223 · 34 transfers.
Second vantage	our prober saw a valid 402 but the Cloudflare edge saw HTTP 403, 17h ago
Discovery (.well-known/x402)	not found
Catalog volume (their metric)	28 calls/30d

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

/products/id/purchase	$19.86	not yet probed
/products/cream-sf-16th3Acookies/purchase	$3.22	not yet probed
/products/cream-sf-16thcookies/purchase	$3.22	not yet probed
/products/kreemmini-cookie/purchase	$1.73	not yet probed

grade evidence: hourly probes of /products/id/purchase. 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 4 listed) · unverified · not part of the rating

BuyWith402 (buywith402.com): buy any product from the catalog with one x402 USDC payment and get an order id with queued fulfillment. Prices are all-inclusive (US shipping and tax included). Browse products free at GET /products (?query=<text> to search); …

price-mismatch

Embed this grade (free, always current)

<a href="https://x402register.com/s/www.buywith402.com.html"><img src="https://x402register.com/badge/www.buywith402.com.svg" alt="x402 register grade F"></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 www.buywith402.com? Dispute this rating. Scores are opinions based on automated measurements at the stated times.