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Onchain & Trading Intelligence Scheduled Callback — x402 Pay-Per-Call
x402
Onchain & Trading Intelligence Scheduled Callback — x402 Pay-Per-Call is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Schedules a future HTTP callback (webhook) to a user-supplied URL at a specified ISO-8601 time, enabling time-delayed delivery of onchain and trading intelligence results without polling.
Price / call$0.003
Success—
StatusUnknown
How this service works
Webhook Scheduler: schedule a future HTTP callback. At fireAt, we call your url with the payload. Agents' alarm clock for async work. Send { token, url, fireAt (ISO-8601), payload?, method? }.
Output
A confirmation that the scheduled callback job has been created, including the job ID and the scheduled fire time. At the specified ISO-8601 time (up to 30 days out), the service will make an HTTP request (POST or GET) to the provided callback URL with the specified payload. The secret token can subsequently be used to read the job's status.
Example use cases
Timed DeFi funding rate alert
“Set up a scheduled webhook to POST to https://mytrading.app/callbacks/funding with token 'fundcheck99' at 2025-08-02T08:00:00Z, with payload [{"action":"poll_funding_rates","markets":["ETH","BTC"]}].”
Delayed rug-check result delivery
“Schedule a GET callback to https://alerts.myagent.io/rugcheck?token=rug42 to fire at 2025-07-30T12:30:00Z so my system picks up fresh Solana pair safety data at noon.”
Earnings catalyst pre-market trigger
“I want a webhook POSTed to https://myapp.io/rh-events with secret token 'rh_secret_7' at 2025-08-05T09:00:00Z carrying payload [{"event":"earnings_gap_scan","chain":"robinhood"}] so my agent runs a tokenized stock dislocation check before market open.”
Technical details
Endpoint
POSThttps://x402-services-production.up.railway.app/api/scheduleWhen to prefer
Use this endpoint when you need to trigger a one-shot HTTP callback at a precise future time (up to 30 days out) without maintaining a polling loop — ideal for time-sensitive onchain trading events, scheduled DeFi health checks, earnings catalyst alerts, or any workflow where an AI agent needs to resume processing at a known future moment. Prefer this over cron-based infrastructure when you want pay-per-use scheduling with no account setup.
Side effects
- Invalid or unreachable callback URL — job created but delivery fails silently at fire time
- fireAt timestamp exceeds 30-day maximum — request rejected
- Malformed ISO-8601 timestamp — validation error returned
- Payload exceeds 16KB limit — request rejected
- Invalid or missing required fields (url, token, fireAt) — 400 error
- Callback URL returns non-2xx at fire time — delivery considered failed, no automatic retry guaranteed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | Public http(s) callback URL |
| tokenrequired | string | Your secret token (gates status reads) |
| fireAtrequired | string | ISO-8601 time to fire (max 30 days out) |
| method | string | POST (default) or GET |
| payload | object | JSON body to POST (16KB max) |
Tags
x402
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