service / x402-standard-9dc87935
DataSieve
A 7-day watch, ONE condition: on-chain on Base (wallet activity, whale token transfers, price crossings, new pools), a heartbeat dead-man switch for your agent (silence fires the alert), a schedule/cron webhook, or a url-change website monitor (CSS-selector/regex scoped). No account: one paid call returns a watch id + secret. Events push to your webhook (HMAC-signed) and a pollable mailbox, each with a signed Ed25519 receipt. Failed calls never billed. 50 triggers; {"renew":"wt_..."} extends.
uncertifiedrail · x402
Call card
https://api.datasieve.xyz/watch/standard
price $0.1 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-standard-9dc87935", "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-standard-9dc87935", "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.