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WithZero Scheduler - Fetch Task by ID
WithZero Scheduler - Fetch Task by ID is a paid API for AI agents from agents.withzero.xyz, paid per call via MPP, price unknown, status healthy (last checked 2026-09-15, last successful call 2026-09-15).
Retrieves full metadata and status for a specific scheduled task, owner-gated by cryptographic proof, with environment variables always omitted from the response.
Price / call—
Success100%
StatusHealthy
How this service works
Fetch a task. Owner-gated by proof. `env` is never returned. 📖 Full guide: https://scheduler.withzero.xyz/llms.txt
Output
A JSON object containing the full task record including: UUID, owner identifier, status, billing rail (direct or zeroclick), cron expression, timezone, runtime, entrypoint, source, dependencies, tool list, LLM config, notification email, payment channel details (channel_id, open/close tx), cost metrics (max_amount_micros, cumulative cost, latest voucher, available balance, estimated ceiling, lifetime cost), execution stats (lifetime_runs, avg_cost_per_run_micros), scheduling info (next_run_at, last_run_at, end_at), pause metadata (last_paused_reason, last_paused_at, recovery_hint), and audit timestamps. Environment variables are never included in the response.
Example use cases
Check why a task was paused
“My task 9a2b3c4d-1e2f-3a4b-5c6d-7e8f90abcdef got paused — can you fetch it and tell me the last_paused_reason and what the recovery hint says I need to do?”
Monitor billing and run history
“Fetch task b1c2d3e4-f5a6-7b8c-9d0e-1f2a3b4c5d6e for me — I want to see the lifetime run count, average cost per run, and current balance available.”
Verify cron schedule and next run time
“Can you look up my scheduled task 00112233-4455-6677-8899-aabbccddeeff and confirm what cron expression it's using, what timezone it's in, and when the next run is scheduled?”
Technical details
Endpoint
GEThttps://agents.withzero.xyz/api/v1/scheduler/tasks/{id}When to prefer
Use this endpoint when you need the complete current state of a specific known task — its schedule, billing, run history, pause status, and recovery hints. Prefer this over the task list endpoint when you already have the task ID and need deep detail on a single task. This is the right call when debugging a paused or failing task, verifying billing balances, or confirming scheduling configuration before triggering a run.
Side effects
- Task ID not found — 404 if the UUID does not match any existing task
- Authorization failure — 401/403 if the caller cannot prove ownership of the task
- Invalid UUID format — 400 if the id path parameter is not a valid UUID
- Payment/access error — 402 if the x402 payment proof is missing or insufficient
- Task deleted — 404 if the task was previously deleted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| idrequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| idrequired | string | |
| llmrequired | — | |
| cronrequired | — | |
| ownerrequired | string | |
| end_atrequired | — | |
| sourcerequired | string | |
| statusrequired | string | |
| runtimerequired | string | |
| timezonerequired | string | |
| tool_listrequired | — | |
| channel_idrequired | — | Direct rail payment channel/challenge id. Null on the ZeroClick rail. |
| created_atrequired | string | |
| entrypointrequired | string | |
| updated_atrequired | string | |
| last_run_atrequired | — | |
| next_run_atrequired | — | |
| billing_railrequired | string | |
| dependenciesrequired | — | |
| notify_emailrequired | — | |
| lifetime_runsrequired | number | |
| recovery_hintrequired | — | Populated when status is paused_insufficient_funds. Tells the agent exactly how to recover. |
| last_paused_atrequired | — | |
| channel_open_txrequired | — | Direct rail payment reference. Null on the ZeroClick rail. |
| max_runtime_secrequired | number | |
| channel_close_txrequired | — | |
| max_amount_microsrequired | string | Direct rail: refundable escrow ceiling. ZeroClick rail: seller-local lifetime execution cap; no buyer money is deposited here. |
| max_sibling_callsrequired | number | |
| last_paused_reasonrequired | — | |
| lifetime_cost_microsrequired | string | |
| latest_voucher_microsrequired | string | |
| cumulative_cost_microsrequired | string | Actual finalized run usage plus active reservations, in micros. ZeroClick settlement is reported to the marketplace. |
| avg_cost_per_run_microsrequired | — | |
| balance_available_microsrequired | string | Direct rail: remaining escrow. ZeroClick rail: remaining seller-local execution cap, not a refundable monetary balance. |
| estimated_ceiling_microsrequired | string | Worst-case cost of one run given max_runtime_sec + max_sibling_calls. Compare against balance_available_micros to predict remaining runs. |
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