| Availability (valid 402 returned) | 100.0% of 61 probes |
| Median 402 handshake | 238ms |
| p90 handshake | 402ms |
| Catalog price (advertised) | $0.02 |
| Live price (median demanded) | $0.02 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | finance-crypto |
| Payment receiver | 0x2b79…db96 (+1 more) · changed 1× since Jul 12 |
| Base USDC settlement to this receiver wallet (30d' measured by us) | x402-plausible (amount matches a listed price): $0 · 1 transfers · 1 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 1 transfers. |
| Second vantage | confirmed 402 from a second network path (Cloudflare edge), just now |
| Discovery (.well-known/x402) | present |
| Catalog volume (their metric) | 2 calls/30d |
| /api/v1/forecast | $0.02 | not yet probed |
| /api/v1/markets | $0.01 | not yet probed |
| /api/v1/signal | $0.03 | not yet probed |
| /api/v1/track-record | $0.01 | not yet probed |
grade evidence: hourly probes of /api/v1/forecast. 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.
| 20261013 10:40 | payment receiver changed to 0x2b79…db96, Aujwcy…e1Kb |
Kronos Forecast: the Kronos candlestick model signal for one symbol and interval as a standard JSON fact list (direction, confidence bucket, volatility-based range, invalidation level, per-step percentiles). Live: BTC-USD, ETH-USD 1h; stocks, forex and …
receiver-changed
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 quantx402.app? Dispute this rating. Scores are opinions based on automated measurements at the stated times.