| Availability (valid 402 returned) | 26.3% of 76 probes · single vantage |
| Median 402 handshake | 1202ms |
| p90 handshake | 1320ms |
| Catalog price (advertised) | $0.001 |
| Live price (median demanded) | $0.001 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | agent-tools |
| Payment receiver | 0x6374…afC3 (+1 more) · stable 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 | our prober saw a valid 402 but the Cloudflare edge saw HTTP 200, 9h ago |
| Discovery (.well-known/x402) | not found |
| Catalog volume (their metric) | 2 calls/30d |
SIDERA Memory compiles supported Claude, Codex, Grok and Gemini JSONL logs into agent memory: reusable memory.md and lossless raw.tar.zst with source evidence. Processing: 1 MB $0.02; 100 MB $2; 1 GB $18; 5 GB+ from $75, by measured original size. Isolated …
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 shadowharness.com? Dispute this rating. Scores are opinions based on automated measurements at the stated times.