Assay

active

Scores x402 services using paid probes and on-chain receipts, with composite quality scores and component breakdowns.

AIBasex402 v2exactnominal-labs.com ↗︎

Settled via Coinbase.

Not seen in any discovery source since 2026-09-12.

Transactions · 30d
1
Volume · 30d
$0.005
Unique buyers · 30d
0
Uptime · 30d
100.0%
Latency p50
243ms
Reported calls · 30d
1

Endpoints (1 live)

  • GET /score — Quality score for any x402 service, earned by real paid probes with on-chain receipts: composite 0-100, component breakdown (payment settlement, schema conformance, ground-truth accuracy, LLM-judged quality), 7-day trend, probe count. Scores publish only after 20+ probes across days; daily corpus digests are Bitcoin-anchored via OpenTimestamps. Query: /score?service={url-encoded resource URL}. Free: /tier/{url}, /leaderboard. Agent guide: https://assay.nominal-labs.com/SKILL.md (0.005 USDC on Base)

First seen · last seen · last active