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POST
/
v1
/
videos
/
generations
wan2.5-image-to-video Interface
curl --request POST \
  --url https://api.evolink.ai/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "wan2.5-image-to-video",
  "prompt": "A cat playing piano"
}
'
{
  "created": 1757169743,
  "id": "task-unified-1757169743-7cvnl5zw",
  "model": "wan2.5-image-to-video",
  "object": "video.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 120
  },
  "type": "video",
  "usage": {
    "billing_rule": "per_call",
    "credits_reserved": 5,
    "user_group": "default"
  }
}

Authorizations

​
Authorization
string
header
required

##All APIs require Bearer Token authentication##

Get API Key:

Visit API Key Management Page to get your API Key

Add to request header when using:

Authorization: Bearer YOUR_API_KEY

Body

application/json
​
model
enum<string>
default:wan2.5-image-to-video
required

Model name

Available options:
wan2.5-image-to-video
Example:

"wan2.5-image-to-video"

​
prompt
string
required

Prompt describing what kind of video to generate, limited to 2000 tokens

Maximum string length: 2000
Example:

"A cat playing the piano"

​
image_urls
string<uri>[]
required

Reference image URL list for first-frame image-to-video feature

Note:

  • Single request supports input image quantity: 1 image
  • Image size: no more than 10MB
  • Supported image formats: .jpeg, .jpg, .png (transparent channels not supported), .bmp, .webp
  • Image resolution: image width and height range is [360, 2000] pixels
  • Image URLs must be directly viewable by the server, or the image URL should trigger direct download when accessed (typically these URLs end with image file extensions, such as .png, .jpg)
Maximum array length: 1
Example:
["https://example.com/image1.png"]
​
duration
integer

Specifies the duration of the generated video (seconds)

Note:

  • Only supports values 5 and 10, representing 5 seconds and 10 seconds respectively
  • A single request will pre-charge based on the value of duration, with actual charges based on the generated video duration in seconds
Example:

5

​
quality
string
default:720p

Video quality, defaults to 720p

Description:

  • 480p: Lower quality, lower price
  • 720p: Standard quality, standard price, this is the default
  • 1080p: High quality, higher price
Example:

"720p"

​
prompt_extend
boolean
default:true

Whether to enable intelligent prompt rewriting. When enabled, a large language model will optimize the prompt. This is particularly effective for prompts that lack detail or are too simple. Default value is true

Example:

true

​
callback_url
string<uri>

HTTPS callback address after task completion

Callback Timing:

  • Triggered when task is completed, failed, or cancelled
  • Sent after billing confirmation is completed

Security Restrictions:

  • Only HTTPS protocol is supported
  • Callback to internal IP addresses is prohibited (127.0.0.1, 10.x.x.x, 172.16-31.x.x, 192.168.x.x, etc.)
  • URL length must not exceed 2048 characters

Callback Mechanism:

  • Timeout: 10 seconds
  • Maximum 3 retries on failure (retries after 1 second/2 seconds/4 seconds)
  • Callback response body format is consistent with the task query API response format
  • Callback address returning 2xx status code is considered successful, other status codes will trigger retry
Example:

"https://your-domain.com/webhooks/video-task-completed"

Response

Video task created successfully

​
created
integer

Task creation timestamp

Example:

1757169743

​
id
string

Task ID

Example:

"task-unified-1757169743-7cvnl5zw"

​
model
string

Actual model name used

Example:

"wan2.5-image-to-video"

​
object
enum<string>

Specific task type

Available options:
video.generation.task
​
progress
integer

Task progress percentage (0-100)

Required range: 0 <= x <= 100
Example:

0

​
status
enum<string>

Task status

Available options:
pending,
processing,
completed,
failed
Example:

"pending"

​
task_info
object

Video task detailed information

​
type
enum<string>

Task output type

Available options:
text,
image,
audio,
video
Example:

"video"

​
usage
object

Usage and billing information