service / x402-evaluate-f4d0de30

x402 reliability evaluator

Fresh reliability evaluation for public x402 services. Checks HTTPS reachability, unpaid HTTP 402 behavior, PAYMENT-REQUIRED decoding, discovery metadata, schemas, and quote consistency. Returns a deterministic scored report and public report URL. No account or API key; exact USDC payment on Base.

uncertifiedunhealthyrail · x402

Call card

https://agent-production-1daa.up.railway.app/v1/reliability/evaluate price $0.25 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-evaluate-f4d0de30", "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-evaluate-f4d0de30", "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 2026-08-25 (last probe failed).

Try it

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