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WithZero Scheduler Task Update (PATCH)
WithZero Scheduler Task Update (PATCH) is a paid API for AI agents from agents.withzero.xyz, paid per call via MPP, price unknown, status unknown (last checked 2026-09-15).
Partially updates a scheduled task's notification email, expiry time, allowed tool list (additions only), or raises runtime/spend ceilings
Price / call—
Success—
StatusUnknown
How this service works
Update notify_email, end_at, or tool_list (additions only). 📖 Full guide: https://scheduler.withzero.xyz/llms.txt
Output
Returns the updated task object including its UUID, current tool_list, max_sibling_spend_micros, max_runtime_sec, estimated_ceiling_micros, notify_email, and end_at. Immutable fields (like the task spec, env, schedule) are not returned or modified.
Example use cases
Add notification email to a running task
“My scheduled task on WithZero (ID: e3f1a2b4-...) doesn't have a notification email set — can you add ops@myteam.com so we get an alert every time it runs?”
Extend task expiry deadline
“My recurring WithZero task is set to expire on June 30th but I need it to keep running through the end of the year — can you push the end_at to 2025-12-31T23:59:59Z?”
Raise runtime ceiling for long-running agent
“My WithZero scheduler task sometimes hits the runtime limit — can you raise the max_runtime_sec to 600 seconds so it has more headroom to finish?”
Technical details
Endpoint
PATCHhttps://agents.withzero.xyz/api/v1/scheduler/tasks/{id}When to prefer
Use this endpoint when you need to modify a live WithZero scheduled task in-place without recreating it — specifically to add notification email, extend expiry, append tools, or raise runtime/spend ceilings. If you need to lower any ceiling or change immutable fields (schedule, env, base spec), you must clone and recreate the task instead. Prefer this over delete+recreate when the task is active and you want to preserve its ID, audit trail, and existing configuration.
Side effects
- 409 RUN_IN_FLIGHT — cannot raise max_runtime_sec while a run is claimed or in progress; retry after the run completes
- 400 validation error — attempting to lower max_runtime_sec or max_sibling_spend_micros (raises only)
- 400 validation error — attempting to remove tools from tool_list (additions only)
- 400 invalid email format for notify_email
- 400 invalid datetime format for end_at
- 404 task not found or caller lacks ownership proof
- 409 conflict if attempting to patch immutable fields
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| end_at | — | |
| tool_list | array | |
| notify_email | — | |
| max_runtime_sec | integer | Raise the per-run wall-clock cap in seconds (max 900). Raises only — lowering forces clone+recreate. 409 RUN_IN_FLIGHT while a run is claimed/running; retry after it finishes. Raising it raises the per-run ceiling reservation — top up if the balance drops below one ceiling. |
| max_sibling_spend_micros | string | Raise the per-run sibling-spend ceiling (USDC micros; string, or number up to 2^53-1). Raises only — lowering forces clone+recreate. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| idrequired | string | |
| end_atrequired | — | |
| tool_listrequired | — | |
| notify_emailrequired | — | |
| max_runtime_secrequired | integer | |
| estimated_ceiling_microsrequired | string | |
| max_sibling_spend_microsrequired | — |
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