curl --request POST \
--url https://api.evolink.ai/v1/videos/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "tencent-video-upscale",
"video_urls": [
"https://example.com/my-video.mp4"
]
}
'{
"created": 1757169743,
"id": "task-unified-1757169743-7cvnl5zw",
"model": "tencent-video-upscale",
"object": "video.generation.task",
"progress": 0,
"status": "pending",
"task_info": {
"can_cancel": false,
"estimated_time": 120,
"video_duration": 0
},
"type": "video",
"usage": {
"billing_rule": "per_second",
"credits_reserved": 3.264,
"user_group": "default"
}
}Tencent
Tencent Video Upscale
- Tencent Video Upscale (tencent-video-upscale) enhances existing videos and upscales them to
720p,1080p,2k, or4k - Offers 7 enhancement styles for live-action footage, animation, small faces in distant shots, facial fidelity, stronger detail, and softer results
- Preserves the source frame rate by default (
model_params.max_fps: "source"); use"30","60", or"120"to set a cap. Only reduces frame rate; does not interpolate frames - Billed by video duration. See EvoLink model pricing for prices at different resolutions and output frame rates
- Asynchronous processing: use the returned task ID to query task status
- Tasks cannot be canceled after submission
- Enhanced video URLs are valid for 24 hours. Save your video promptly
POST
/
v1
/
videos
/
generations
curl --request POST \
--url https://api.evolink.ai/v1/videos/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "tencent-video-upscale",
"video_urls": [
"https://example.com/my-video.mp4"
]
}
'{
"created": 1757169743,
"id": "task-unified-1757169743-7cvnl5zw",
"model": "tencent-video-upscale",
"object": "video.generation.task",
"progress": 0,
"status": "pending",
"task_info": {
"can_cancel": false,
"estimated_time": 120,
"video_duration": 0
},
"type": "video",
"usage": {
"billing_rule": "per_second",
"credits_reserved": 3.264,
"user_group": "default"
}
}Authorizations
All APIs require Bearer Token authentication
Get API Key:
Visit API Key Management Page to get your API Key
Add to request header:
Authorization: Bearer YOUR_API_KEY
Body
application/json
Video upscaling model name
Available options:
tencent-video-upscale Example:
"tencent-video-upscale"
Input video URL list
Notes:
- Only
1video is supported per request (if more are provided, only the first is used) - The video URL must be directly accessible by the server (public or presigned URL)
- Supported formats:
.mp4,.mov - Maximum duration:
60seconds - Maximum source resolution: 4K (short side no greater than
2160pixels) - On submission, the server reads the video duration, resolution, and frame rate. A read failure returns
video_probe_failed
Required array length:
1 elementExample:
["https://example.com/my-video.mp4"]
Enhancement style. Choose based on the video content
Options:
realistic- General realistic: live-action footage and other typical scenes — defaultrealistic_distant- Realistic, distant shots: optimized for small faces in distant footageanimation- General animation: animation, anime, and cartoonsanimation_distant- Animation, distant shots: optimized for small faces in animated scenes with distant charactersface_fidelity- Facial fidelity: preserves the original facial features as much as possibledetail_boost- Detail enhancement: makes textures and edges more pronouncedsoft- Soft: lighter sharpening for a more natural look
Case-insensitive. Invalid values are rejected
Available options:
realistic, realistic_distant, animation, animation_distant, face_fidelity, detail_boost, soft Example:
"realistic"
Target resolution, measured by the video's short side
Options:
720p- Short side of720pixels1080p- Short side of1080pixels — default2k- Short side of1440pixels4k- Short side of2160pixels
Notes:
- The target resolution cannot be lower than the source. For example, a
1080psource can use1080p,2k, or4k;720pis rejected - Choosing the lowest tier that is at least as high as the source keeps the image size largely unchanged
Available options:
720p, 1080p, 2k, 4k Example:
"1080p"
Model-specific parameters
Show child attributes
Show child attributes
HTTPS callback URL for task completion
Callback Timing:
- Triggered when task is completed, failed, or cancelled
- Sent after billing confirmation
Security Restrictions:
- HTTPS protocol only
- Internal IP addresses are prohibited (127.0.0.1, 10.x.x.x, 172.16-31.x.x, 192.168.x.x, etc.)
- URL length must not exceed
2048characters
Callback Mechanism:
- Timeout:
10seconds - Maximum
3retries after failure (at1/2/4seconds after failure) - Callback response format is consistent with task query API
- 2xx status code is considered successful, other codes trigger retry
Example:
"https://your-domain.com/webhooks/video-task-completed"
Response
Video enhancement task created successfully
Task creation timestamp
Example:
1757169743
Task ID
Example:
"task-unified-1757169743-7cvnl5zw"
Actual model name used
Example:
"tencent-video-upscale"
Task type
Available options:
video.generation.task Task progress percentage (0-100)
Required range:
0 <= x <= 100Example:
0
Task status
Available options:
pending, processing, completed, failed Example:
"pending"
Video task details
Show child attributes
Show child attributes
Task output type
Available options:
text, image, audio, video Example:
"video"
Usage and billing information
Show child attributes
Show child attributes