www.x402pulse.dev
| Availability (valid 402 returned) | 100.0% of 61 probes |
| Median 402 handshake | 272ms |
| p90 handshake | 797ms |
| Catalog price (advertised) | $0.0175 |
| Live price (median demanded) | $0.001 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | finance-crypto |
| Payment receiver | 0x5e90…6e74 · 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 |
| Second vantage | confirmed 402 from a second network path (Cloudflare edge), just now |
| Discovery (.well-known/x402) | not found |
| Catalog volume (their metric) | 13 calls/30d |
listed products (catalog path · advertised price · live price we measured)
| /v1/attention/markets | $0.0875 | not yet probed |
| /v1/attention/spikes | $0.035 | not yet probed |
| /v1/attention/topic | $0.0088 | not yet probed |
| /v1/attention/trending | $0.0175 | not yet probed |
| /v1/disagreements | $0.175 | not yet probed |
| /v1/health/drug-approvals | $0.0175 | not yet probed |
| /v1/health/drug-label | $0.0088 | not yet probed |
| /v1/health/drug-safety | $0.0175 | not yet probed |
| /v1/health/drug-shortages | $0.0175 | not yet probed |
| /v1/health/hospital | $0.035 | not yet probed |
and 25 more listed paths
grade evidence: hourly probes of /v1/whales. 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. This operator lists 35 products; the grade is evidence from a small sample of them.
event log (from our catalog snapshots and probes)
| 2026-10-07 15:38 | price changed $0.001 → $0.0175 |
Polymarket whale trades: the largest recent buys and sells across all markets above a size you choose, with trader name, outcome, price and USD size. 5- and 15-minute crypto markets filtered out. Pair with /v1/wallet to check whether a whale is any good.
<a href="https://x402register.com/s/www.x402pulse.dev.html"><img src="https://x402register.com/badge/www.x402pulse.dev.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 www.x402pulse.dev? Dispute this rating. Scores are opinions based on automated measurements at the stated times.