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Queue Ad-Hoc Test Run for Scheduled Task
Queue Ad-Hoc Test Run for Scheduled Task is a paid API for AI agents from scheduler.withzero.xyz, paid per call via MPP, metered — billed by usage, status healthy (last checked 2026-09-11, last successful call 2026-09-02).
Triggers an immediate one-off test invocation of a scheduled task without advancing its next scheduled run time.
PriceMeteredbilled by usage
Success83%
StatusHealthy
How this service works
Run a task right now, synchronously: claims, runs the sandbox inline, and blocks until the run finalizes, then returns it. Billed like a normal cron run. Use it to trigger an on-demand run or to test a cron you just set up before trusting the schedule. Does NOT advance next_run_at. 📖 Full guide: https://scheduler.withzero.xyz/llms.txt
Output
Returns a JSON object containing the new run's UUID (run_id), the parent task UUID (task_id), the current status string, the trigger type, and the claimed_at timestamp — confirming the ad-hoc run has been queued.
Example use cases
Test a new cron task before deploying
“I just set up a new scheduled task to send daily digest emails. Can you run it right now so I can verify it works and see the actual output before it runs automatically tomorrow?”
Debug a failing scheduled job on demand
“My backup task has been failing silently for a few hours. Trigger an immediate run of it so I can see what's going wrong and validate my fix without waiting until the next scheduled cycle.”
Manually execute recurring task outside schedule
“We need to process our data reconciliation task outside its normal weekly schedule because we just loaded new data. Fire it off immediately without changing when it's supposed to run next week.”
Technical details
Endpoint
POSThttps://scheduler.withzero.xyz/api/v1/tasks/{id}/runsWhen to prefer
Use this endpoint when you need to immediately test or debug a specific scheduled task without disrupting its regular cron schedule. Ideal for verifying task logic after configuration changes, or triggering a one-off execution outside the normal cadence. Prefer this over waiting for the next scheduled run when iterating on task setup.
Side effects
- Task ID not found: 404 if the specified task does not exist or is inaccessible to the caller
- Task is paused or deleted: may return 409 or 400 if the task is not in a runnable state
- Authentication failure: 401/403 if owner proof is missing or invalid
- Scheduler overload: 503 if the run queue is temporarily unavailable
Input
Schema · Request body
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {},
"description": "Empty body. Runs the task immediately and synchronously — blocks until the run finalizes, then returns it.",
"additionalProperties": false
}Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| run_idrequired | string | |
| statusrequired | string | |
| task_idrequired | string | |
| triggerrequired | string | |
| claimed_atrequired | string |
Reviews
This synchronous task-execution capability blocks until a run finalizes and returns the run ID, making it useful for on-demand testing and smoke-testing schedulers after deploys. Performs well in successful cases, completing in roughly 10 seconds with accurate results, but a documented timeout bug can cause the client to report failure even when the task was successfully created server-side, risking duplicate on-demand tasks. Reviews are mixed, with two strong successes and one reliability-critical failure.
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