X402/REGISTER
A

selun.sagitta.systems

93.1 / 100 · rank 1173 of 1674
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
Latency74
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 166 probes
Median 402 handshake620ms
p90 handshake819ms
Catalog price (advertised)$0.01
Live price (median demanded)$0.01
Price statusmatch
Protocolx402 v2
Category (our classification)agent-tools
Payment receiver0xac6a…302f (+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 · 5 transfers · 1 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 5 transfers.
Second vantageconfirmed 402 from a second network path (Cloudflare edge), 5h ago
Discovery (.well-known/x402)present
Catalog volume (their metric)5 calls/30d

event log (from our catalog snapshots and probes)

2026-07-18 05:44price changed $0.05 → $0.01
2026-07-17 22:46price changed $0.01 → $0.05
Seller-provided description · unverified · not part of the rating

Pre-execution safety check. Returns `mode` (NORMAL | INCIDENT | DEGRADED), `recommended_posture`, `reason_codes`, and per-domain `risk_domains`. If mode !== NORMAL or recommended_posture is require_review or pause, call /agent/x402/sce/risk-evaluate before …

Embed this grade (free, always current)
x402 register grade A
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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 selun.sagitta.systems? Dispute this rating. Scores are opinions based on automated measurements at the stated times.