keevx-image-to-video

Keevx Image-to-Video Skill

Convert images to high-quality videos via the Keevx API.

Prerequisites

Set the environment variable KEEVX_API_KEY, obtained from https://www.keevx.com/main/home. Documentation: https://docs.keevx.com

export KEEVX_API_KEY="your_api_key_here"

API Endpoints

Model Selection

| Parameter | Model V (General, Recommended) | Model KL (Multi-Reference) | |-----------|------|--------| | prompt | ✅ Required, max 1000 chars | ✅ Required | | image_url | Required for single-image mode, max 20MB | ❌ Not supported | | reference_images | Required for multi-image mode, max 3 images, each max 20MB | ✅ Required, max 7 images, each max 20MB | | aspect_ratio | ✅ 16:9 / 9:16 | ✅ 16:9 / 9:16 | | aspect_resolution | 720p / 1080p / 4k | 720p / 1080p | | duration | Single-image: 4/6/8s, Multi-image: fixed 8s | 5 / 10s | | generate_audio | ✅ Supported, default false | ❌ Not supported | | generate_count | Optional 1-4 | Optional 1-4 | | callback_url | Optional | Optional |

Model Selection Guide

Model-Specific Request Bodies

#### Model V

{
  "model": "V",
  "prompt": "Video description (required, max 1000 chars)",
  "image_url": "https://... (required for single-image mode)",
  "reference_images": ["https://..."],
  "aspect_ratio": "16:9",
  "aspect_resolution": "720p | 1080p | 4k",
  "duration": 4,
  "generate_audio": true,
  "generate_count": 1
}

#### Model KL

{
  "model": "KL",
  "prompt": "Video description (required)",
  "reference_images": ["https://..."],
  "aspect_ratio": "16:9",
  "aspect_resolution": "720p | 1080p",
  "duration": 5,
  "generate_count": 1
}

Image Input Handling

User-provided images may be URLs or local file paths, handle accordingly:

Upload Local File

curl --location 'https://api.keevx.com/v1/figure-resource/upload/file' \
  --header 'Authorization: Bearer $KEEVX_API_KEY' \
  --header 'source: skill' \
  --form 'file=@"/path/to/local/image.png"'

Response example:

{
  "code": 0,
  "success": true,
  "message": { "global": "success" },
  "result": {
    "url": "https://storage.googleapis.com/..../image.png",
    "fileId": "c5a4676a-...",
    "fileName": "image.png"
  }
}

Extract the image URL from result.url for use as image_url or reference_images. For multiple local files, upload each one and collect all URLs.

Quick Examples

Single Image Generation (Model V)

curl -X POST "https://api.keevx.com/v1/image_to_video" \
  -H "Authorization: Bearer $KEEVX_API_KEY" \
  -H "source: skill" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "V",
    "prompt": "Waves crashing on the beach at sunset",
    "image_url": "https://example.com/beach.jpg",
    "aspect_ratio": "16:9",
    "aspect_resolution": "1080p",
    "duration": 6,
    "generate_audio": true
  }'

Multi-Reference Image Generation (Model KL)

curl -X POST "https://api.keevx.com/v1/image_to_video" \
  -H "Authorization: Bearer $KEEVX_API_KEY" \
  -H "source: skill" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "KL",
    "prompt": "City night timelapse, neon lights flickering",
    "reference_images": [
      "https://example.com/city1.jpg",
      "https://example.com/city2.jpg",
      "https://example.com/city3.jpg"
    ],
    "aspect_ratio": "16:9",
    "aspect_resolution": "1080p",
    "duration": 10,
    "generate_count": 2
  }'

Query Task Status

curl -X GET "https://api.keevx.com/v1/image_to_video/i2v-xxxxxxxx" \
  -H "Authorization: Bearer $KEEVX_API_KEY" \
  -H "source: skill"

Response Format

Task Created Successfully

{
  "code": 0,
  "msg": "ok",
  "data": {
    "task_ids": ["i2v-d6b6472bcf724d0399e06d1390cb964e"]
  }
}

Task Query Success

{
  "code": 0,
  "msg": "ok",
  "data": {
    "task_id": "i2v-d6b6472bcf724d0399e06d1390cb964e",
    "status": "SUCCEEDED",
    "video_url": "https://storage.googleapis.com/.../sample_0.mp4",
    "thumbnail_url": "https://storage.googleapis.com/.../thumbnail.webp",
    "error_message": "",
    "duration": 6,
    "width": 1920,
    "height": 1080
  }
}

Status Values

PENDING (queued) / PROCESSING (in progress) / SUCCEEDED (completed) / FAILED (failed)

Failure Response

{
  "code": 100001,
  "msg": "Parameter error: prompt cannot be empty"
}

Callback Notification

Provide callback_url when creating a task. The system will send a POST request to that URL upon task completion:

{
  "code": 0,
  "msg": "ok",
  "task_type": "image_to_video",
  "data": {
    "task_id": "i2v-d6b6472bcf724d0399e06d1390cb964e",
    "status": "SUCCEEDED",
    "video_url": "https://storage.googleapis.com/.../sample_0.mp4",
    "thumbnail_url": "https://storage.googleapis.com/.../thumbnail.webp",
    "error_message": ""
  }
}

Polling Strategy

Video generation may take up to 20 minutes. Recommended: 30-second intervals, max 40 retries.

MAX_RETRIES=40
INTERVAL=30
for i in $(seq 1 $MAX_RETRIES); do
  status=$(curl -s -X GET "$API_BASE/image_to_video/$TASK_ID" \
    -H "Authorization: Bearer $KEEVX_API_KEY" \
    -H "source: skill" | jq -r '.data.status')
  if [ "$status" = "SUCCEEDED" ]; then echo "Success"; break
  elif [ "$status" = "FAILED" ]; then echo "Failed"; break; fi
  sleep $INTERVAL
done

Error Codes

| HTTP Status Code | Description | |-----------------|-------------| | 200 | Success | | 400 | Parameter error | | 401 | Authentication failed | | 404 | Resource not found | | 413 | Request body too large | | 429 | Rate limit exceeded | | 500 | Internal server error |

| Business Error Code | Description | Solution | |--------------------|-------------|----------| | 100001 | Parameter error | Check parameter format and required fields | | 100002 | Invalid token | Verify API Key is correct and active | | 100003 | Task not found | Verify task_id is correct | | 100004 | Image size exceeded | Compress image to under 20MB | | 100005 | Prompt too long | Shorten prompt to within 1000 characters | | 100006 | Image URL inaccessible | Ensure image URL is publicly accessible | | 100007 | Unsupported image format | Use common formats such as JPG, PNG |

Notes

Set the environment variable KEEVX_API_KEY, obtained from https://www.keevx.com/main/home. Documentation: https://docs.keevx.com

export KEEVX_API_KEY="your_api_key_here"