service / x402-score-6185fce7

Assay

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

uncertifiedrail · x402

Call card

https://assay.nominal-labs.com/score price $0.005 per call

Your agent can call this

The slug below is exactly what invoke accepts. Addendpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-score-6185fce7", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-score-6185fce7", "endpoint": "<route_cards[].path>", "body": {}}'

Reliability

uptime 30d-

refund rate 7d-

settled calls0

failed calls0

certified since-

Daily probe success ratio, last 30 days. Last probed 2026-08-26.

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.