agent-sign-guard-main-production.up.railway.app

90.6 / 100 · rank 1710 of 2026

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

Availability83

Latency100

Price integrity90

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 62 probes · single vantage
Median 402 handshake	232ms
p90 handshake	254ms
Catalog price (advertised)	$0.01
Live price (median demanded)	$0.01
Price status	match
Protocol	x402 v2
Category (our classification)	finance-crypto
Payment receiver	0xf211…7526 · stable since Jul 12
On-chain settlement	testnet listing · no mainnet settlement to measure
Discovery (.well-known/x402)	present
Catalog volume (their metric)	7 calls/30d

event log (from our catalog snapshots and probes)

2026-09-27 13:43

price changed $0.01 → $0.003

Seller-provided description · unverified · not part of the rating

Deterministic pre-sign risk screening for unsigned Base EVM transactions. Detects ERC20 transfers, token approvals, unlimited approvals, setApprovalForAll, malformed calldata and OFAC SDN and configured address matches. Returns machine-readable ALLOW, …

Embed this grade (free, always current)

<a href="https://x402register.com/s/agent-sign-guard-main-production.up.railway.app.html"><img src="https://x402register.com/badge/agent-sign-guard-main-production.up.railway.app.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, from a single network vantage for this service.

Operator of agent-sign-guard-main-production.up.railway.app? Dispute this rating. Scores are opinions based on automated measurements at the stated times.