Wan2 Task Query

After creating an asynchronous Wan2 video task, poll GET https://www.anyfast.ai/v1/video/generations/{TASK_ID} until the AnyFast outer status reaches a terminal state. This endpoint covers the independent Wan2.7 model IDs wan2.7-t2v, wan2.7-i2v, and wan2.7-r2v, as well as compatible Wan2 tasks that return the same task shape.

Poll a task

curl --request GET \
  --url https://www.anyfast.ai/v1/video/generations/{TASK_ID} \
  --header 'Authorization: Bearer YOUR_API_KEY'

import time
import requests

task_id = "YOUR_TASK_ID"
headers = {"Authorization": "Bearer YOUR_API_KEY"}

while True:
    response = requests.get(
        f"https://www.anyfast.ai/v1/video/generations/{task_id}",
        headers=headers,
    )
    response.raise_for_status()
    task = response.json()["data"]

    print(f"Status: {task['status']} — progress: {task['progress']}")

    if task["status"] == "SUCCESS":
        print("Video URL:", task["result_url"])
        break
    if task["status"] == "FAILURE":
        print("Failure reason:", task["fail_reason"])
        break

    time.sleep(15)

A successful create response means the task was accepted and queued, not that generation succeeded. Provider-side validation can still move an accepted task to FAILURE. Likewise, a query response can return HTTP 200 with top-level code: "success" while data.status is FAILURE; always use data.status for the generation outcome.

AnyFast status lifecycle

Use the outer data.status field to control polling.

`data.status`	Meaning	Action
`NOT_START`	Accepted but not yet queued	Continue polling
`QUEUED`	Waiting for processing	Continue polling
`IN_PROGRESS`	Generation is running	Continue polling
`SUCCESS`	Generation completed	Read `data.result_url`
`FAILURE`	Generation failed	Read `data.fail_reason`

data.progress is a percentage string from "0%" to "100%", not a number. Treat status as authoritative because progress can remain unchanged between polls. Use a reasonable polling interval, such as 15 seconds, instead of sending continuous queries while generation is running.

AnyFast fields and upstream fields

The response contains an AnyFast task envelope and a nested copy of the upstream provider response.

Field	Layer	Description
`code`	AnyFast	Query-call result. `success` means the query itself completed; it does not mean the video generation succeeded
`data.task_id`	AnyFast	Task ID used in the query URL
`data.status`	AnyFast	Uppercase lifecycle status used by your polling loop
`data.progress`	AnyFast	Percentage string such as `"0%"` or `"100%"`
`data.result_url`	AnyFast	Temporary generated-video URL when `status` is `SUCCESS`
`data.fail_reason`	AnyFast	Failure details when `status` is `FAILURE`
`data.request_id`	AnyFast	AnyFast request trace ID
`data.data.output.task_status`	Upstream	Provider status such as `PENDING`, `RUNNING`, `SUCCEEDED`, or `FAILED`
`data.data.output.video_url`	Upstream	Video URL returned inside the raw provider output
`data.data.request_id`	Upstream	Provider request trace ID
`data.data.usage.duration`	Upstream	Billable duration reported by the provider; for R2V, this equals the reported input-video duration plus output-video duration
`data.data.usage.input_video_duration`	Upstream	Input-video duration used for billing; for R2V, this reflects provider truncation rather than the raw total length of all reference videos
`data.data.usage.output_video_duration`	Upstream	Generated output-video duration

Do not substitute code, data.progress, or data.data.output.task_status for the AnyFast outer data.status. They describe the query call, progress, and upstream state respectively. Also, data.fail_reason is a compatibility field and can repeat the result URL on a successful task; decide success or failure from data.status.

Retain the result

A task can be queried for 24 hours after it is created.
A successful result URL remains valid for 24 hours.
Download or transfer the video promptly after data.status reaches SUCCESS.

Wan2 Task Query API Reference

View the complete task response, upstream payload, and error schema.

​Poll a task

​AnyFast status lifecycle

​AnyFast fields and upstream fields

​Retain the result

Wan2 Task Query API Reference

Poll a task

AnyFast status lifecycle

AnyFast fields and upstream fields

Retain the result