service / x402-signal-plus-6a83b92d

shadow/signal-plus

[SIGNAL+PROOF+CHATTER] One official signal record with its offline-recomputable proof, PLUS the unverified public-channel chatter for a topic from the last 48h - delivered as two separate top-level keys that are never merged. The unverified half lives in its own database with an engine-level trigger forbidding updates, and contributes nothing to the official hash. Nothing posted in the window -> 422 no_charge, not billed (check GET /shadow/catalog first, free).

uncertifiedrail · x402

Call card

https://aeml-x402.zeabur.app/shadow/signal-plus price $0.09 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-signal-plus-6a83b92d", "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-signal-plus-6a83b92d", "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.