Kling Kling Video O3 Standard Image To Video API | Pricing & Docs

kling/kling-video-o3/standard/image-to-video

Animate a still image into a 3-15s cinematic clip with prompt-driven motion and optional sound using Kling Video O3 Standard Image To Video, on RunComfy models and HTTP API.

1. Get started

Use RunComfy's API to run kling/kling-video-o3/standard/image-to-video. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/kling/kling-video-o3/standard/image-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "image": "https://playgrounds-storage-public.runcomfy.net/tools/7362/media-files/input-example1.webp",
    "prompt": "Slow tracking shot, the subject turns toward the camera as soft golden-hour light rakes across the scene, cinematic depth of field, photoreal detail."
  }'

2. Authentication

Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.

3. API reference

Submit a request

Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/kling/kling-video-o3/standard/image-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "image": "https://playgrounds-storage-public.runcomfy.net/tools/7362/media-files/input-example1.webp",
    "prompt": "Slow tracking shot, the subject turns toward the camera as soft golden-hour light rakes across the scene, cinematic depth of field, photoreal detail."
  }'

Monitor request status

Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Retrieve request results

Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Cancel a request

Cancel a queued job by request_id; in-progress jobs cannot be cancelled.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File inputs

Hosted file (URL)

Provide a publicly reachable HTTPS URL. Ensure the host allows server-side fetches (no login/cookies required) and isn't rate-limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre-signed URLs for private assets.

5. Schema

Input schema

{
  "type": "object",
  "title": "Input schema",
  "required": [
    "image",
    "prompt"
  ],
  "properties": {
    "image": {
      "title": "Start Frame Image",
      "description": "The first frame image to animate. Provide a public URL to a clear, well-lit photo or render.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7362/media-files/input-example1.webp"
    },
    "prompt": {
      "title": "Prompt",
      "description": "Describe the desired motion, camera movement, lighting, and action for the clip.",
      "type": "string",
      "default": "Slow tracking shot, the subject turns toward the camera as soft golden-hour light rakes across the scene, cinematic depth of field, photoreal detail."
    },
    "end_image": {
      "title": "End Frame Image",
      "description": "Optional final frame to guide a controlled transition from the start image to this image.",
      "type": "string",
      "default": ""
    },
    "duration": {
      "title": "Duration (seconds)",
      "description": "Length of the generated clip in seconds (3-15).",
      "type": "integer",
      "minimum": 3,
      "maximum": 15,
      "default": 5
    },
    "sound": {
      "title": "Generate Sound",
      "description": "When enabled, synthesize synchronized audio with the video. Adds about 33% to the per-second cost.",
      "type": "boolean",
      "default": false
    },
    "shot_type": {
      "title": "Shot Type",
      "description": "Editing scope. Use intelligent for auto-decided pacing and cuts, or customize for prompt-driven manual control.",
      "type": "string",
      "enum": [
        "customize",
        "intelligent"
      ],
      "default": "customize"
    },
    "multi_prompt": {
      "title": "Multi Prompt",
      "description": "Additional prompt segments to guide scene transitions and progressions. The sum of durations in multi_prompt must equal to total video duration.",
      "type": "array",
      "items": {
        "prompt": {
          "title": "Prompt",
          "description": "Additional prompt segment to guide a scene transition or progression.",
          "type": "string",
          "format": "str"
        },
        "duration": {
          "title": "Duration",
          "description": "Duration of the prompt segment in seconds.",
          "type": "integer",
          "format": "int_slider_with_range",
          "minimum": 3,
          "maximum": 15,
          "default": 5
        }
      },
      "maxItems": 20,
      "minItems": 0
    }
  }
}

Output schema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "single image URL"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "single video URL"
      },
      "images": {
        "type": "array",
        "description": "multiple image URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      },
      "videos": {
        "type": "array",
        "description": "multiple video URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}

RunComfy

RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.

1. Get started

Use RunComfy's API to run kling/kling-video-o3/standard/image-to-video. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/kling/kling-video-o3/standard/image-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "image": "https://playgrounds-storage-public.runcomfy.net/tools/7362/media-files/input-example1.webp",
    "prompt": "Slow tracking shot, the subject turns toward the camera as soft golden-hour light rakes across the scene, cinematic depth of field, photoreal detail."
  }'

3. API reference

Submit a request

Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/kling/kling-video-o3/standard/image-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "image": "https://playgrounds-storage-public.runcomfy.net/tools/7362/media-files/input-example1.webp",
    "prompt": "Slow tracking shot, the subject turns toward the camera as soft golden-hour light rakes across the scene, cinematic depth of field, photoreal detail."
  }'

Monitor request status

Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Retrieve request results

Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Cancel a request

Cancel a queued job by request_id; in-progress jobs cannot be cancelled.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File inputs

Hosted file (URL)

5. Schema

Input schema

{
  "type": "object",
  "title": "Input schema",
  "required": [
    "image",
    "prompt"
  ],
  "properties": {
    "image": {
      "title": "Start Frame Image",
      "description": "The first frame image to animate. Provide a public URL to a clear, well-lit photo or render.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7362/media-files/input-example1.webp"
    },
    "prompt": {
      "title": "Prompt",
      "description": "Describe the desired motion, camera movement, lighting, and action for the clip.",
      "type": "string",
      "default": "Slow tracking shot, the subject turns toward the camera as soft golden-hour light rakes across the scene, cinematic depth of field, photoreal detail."
    },
    "end_image": {
      "title": "End Frame Image",
      "description": "Optional final frame to guide a controlled transition from the start image to this image.",
      "type": "string",
      "default": ""
    },
    "duration": {
      "title": "Duration (seconds)",
      "description": "Length of the generated clip in seconds (3-15).",
      "type": "integer",
      "minimum": 3,
      "maximum": 15,
      "default": 5
    },
    "sound": {
      "title": "Generate Sound",
      "description": "When enabled, synthesize synchronized audio with the video. Adds about 33% to the per-second cost.",
      "type": "boolean",
      "default": false
    },
    "shot_type": {
      "title": "Shot Type",
      "description": "Editing scope. Use intelligent for auto-decided pacing and cuts, or customize for prompt-driven manual control.",
      "type": "string",
      "enum": [
        "customize",
        "intelligent"
      ],
      "default": "customize"
    },
    "multi_prompt": {
      "title": "Multi Prompt",
      "description": "Additional prompt segments to guide scene transitions and progressions. The sum of durations in multi_prompt must equal to total video duration.",
      "type": "array",
      "items": {
        "prompt": {
          "title": "Prompt",
          "description": "Additional prompt segment to guide a scene transition or progression.",
          "type": "string",
          "format": "str"
        },
        "duration": {
          "title": "Duration",
          "description": "Duration of the prompt segment in seconds.",
          "type": "integer",
          "format": "int_slider_with_range",
          "minimum": 3,
          "maximum": 15,
          "default": 5
        }
      },
      "maxItems": 20,
      "minItems": 0
    }
  }
}

Output schema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "single image URL"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "single video URL"
      },
      "images": {
        "type": "array",
        "description": "multiple image URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      },
      "videos": {
        "type": "array",
        "description": "multiple video URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}

Animate a still image into a 3-15s cinematic clip with prompt-driven motion and optional sound using Kling Video O3 Standard Image To Video, on RunComfy models and HTTP API.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

Animate a still image into a 3-15s cinematic clip with prompt-driven motion and optional sound using Kling Video O3 Standard Image To Video, on RunComfy models and HTTP API.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

Kling Video O3 Standard Image To Video: Cinematic Image-to-Video Generation on Models and API | RunComfy

Animate a still image into a 3-15s cinematic clip with prompt-driven motion and optional sound using Kling Video O3 Standard Image To Video, on RunComfy models and HTTP API.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

Kling Video O3 Standard Image To Video: Cinematic Image-to-Video Generation on Models and API | RunComfy

Animate a still image into a 3-15s cinematic clip with prompt-driven motion and optional sound using Kling Video O3 Standard Image To Video, on RunComfy models and HTTP API.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema