# Kling 1.6 · Pro · Effects API

> Kling 1.6 Pro image effects: preset effect scenes on one or two images, 5 or 10 s clips

Runs one of 91 preset effects selected via `effect_scene`, such as swish_swish, birthday_star or drunk_dance, on your images. heart_gesture needs two images in `input_image_urls`; every other effect needs one. `duration` can be 5 or 10 seconds.

- Model id: `kling-video/v1.6/pro/effects`
- Made by: Kling
- Category: Text to Video
- Output: video
- Price: $0.098 / second (5 s ≈ $0.49) (cheapest run $0.49 (490 API credits))
- Run: `POST https://api.doitong.com/v1/run/kling-video/v1.6/pro/effects`
- Quote: `POST https://api.doitong.com/v1/quote/kling-video/v1.6/pro/effects`
- Docs page: https://doitong.com/developers/models/kling-video/v1.6/pro/effects

## Pricing

Price: **$0.098 / second (5 s ≈ $0.49)**. Billed per second of output (`duration`, default 10).

The full example input below costs $0.49 = 490 API credits (5 s × 98 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/kling-video/v1.6/pro/effects` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `enable_safety_checker` |  | boolean | no | `true` |  | Safety checks can be disabled only with account authorization; requests without authorization always undergo checking. |
| `input_image_urls` |  | array of image URL | no |  |  | Effect input image URLs, with a required count of two for heart_gesture and one for any other effect. |
| `effect_scene` |  | enum (string) | yes |  | `heart_gesture`, `bullet_time_360`, `swish_swish`, `running_man`, `swing_swing`, `building_sweater`, `pure_white_wings`, `black_wings`, `golden_wing`, `pink_pink_wings`, `countdown_teleport`, `instant_christmas`, `birthday_star`, `tiger_hug_pro`, `pet_lion_pro`, `drunk_dance`, `drunk_dance_pet`, `daoma_dance`, `bouncy_dance`, `smooth_sailing_dance`, `new_year_greeting`, `lion_dance`, `prosperity`, `great_success`, `golden_horse_fortune`, `red_packet_box`, `lucky_horse_year`, `lucky_red_packet`, `lucky_money_come`, `lion_dance_pet`, `dumpling_making_pet`, `fish_making_pet`, `pet_red_packet`, `lantern_glow`, `expression_challenge`, `overdrive`, `heart_gesture_dance`, `poping`, `martial_arts`, `running`, `nezha`, `motorcycle_dance`, `subject_3_dance`, `ghost_step_dance`, `phantom_jewel`, `zoom_out`, `cheers_2026`, `kiss_pro`, `fight_pro`, `hug_pro`, `heart_gesture_pro`, `dollar_rain_pro`, `pet_bee_pro`, `santa_random_surprise`, `magic_match_tree`, `happy_birthday`, `thumbs_up_pro`, `surprise_bouquet`, `bouquet_drop`, `glamour_photo_shoot`, `box_of_joy`, `first_toast_of_the_year`, `my_santa_pic`, `santa_gift`, `steampunk_christmas`, `snowglobe`, `christmas_photo_shoot`, `ornament_crash`, `santa_express`, `coronation_of_frost`, `spark_in_the_snow`, `scarlet_and_snow`, `bullet_time_lite`, `jumping_ginger_joy`, `venomous_spider`, `throne_of_king`, `luminous_elf`, `woodland_elf`, `snowboarding`, `witch_transform`, `vampire_transform`, `pumpkin_head_transform`, `demon_transform`, `mummy_transform`, `zombie_transform`, `cute_pumpkin_transform`, `halloween_escape`, `korean_baseball`, `girlfriend`, `boyfriend`, `splashsplash` | Effect scene selection, offering single-image effects except for the multi-image heart_gesture option. |
| `duration` |  | enum (string) | no | `5` | `5`, `10` | Output video length, measured in seconds. |

File parameters (`input_image_urls`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "effect_scene": "heart_gesture"
}
```

A fuller example:

```json
{
  "effect_scene": "heart_gesture"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/kling-video/v1.6/pro/effects?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "effect_scene": "heart_gesture"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/kling-video/v1.6/pro/effects?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "effect_scene": "heart_gesture"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "effect_scene": "heart_gesture",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/kling-video/v1.6/pro/effects", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "kling-video/v1.6/pro/effects",
      "input": {
        "effect_scene": "heart_gesture"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "kling-video/v1.6/pro/effects",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 490,
    "usd": "0.49",
    "charged": 490,
    "refunded": 0
  },
  "input": {
    "effect_scene": "heart_gesture"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | Video produced by the model. |

## Related models

- [Kling 1.0](https://doitong.com/developers/models/kling-video/v1/standard/effects.md) (`kling-video/v1/standard/effects`): $0.045 / second
- [Kling 1.5](https://doitong.com/developers/models/kling-video/v1.5/pro/effects.md) (`kling-video/v1.5/pro/effects`): $0.10 / second
- [Kling 1.6 · Standard · Effects](https://doitong.com/developers/models/kling-video/v1.6/standard/effects.md) (`kling-video/v1.6/standard/effects`): $0.056 / second
- [Kling 3.0 Pro Text to Video](https://doitong.com/developers/models/kling-video/v3/pro/text-to-video.md) (`kling-video/v3/pro/text-to-video`): from $0.112 / second
- [FLUX 3 Max Text to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/text-to-video.md) (`blackforestlabs/flux-3-max/text-to-video`): from $0.0425 / second of output video
- [Grok Imagine Video 1.5 Text to Video](https://doitong.com/developers/models/xai/grok-imagine-video/v1.5/text-to-video.md) (`xai/grok-imagine-video/v1.5/text-to-video`): from $0.08 / second
- [LTX 2.5 Pro Text to Video](https://doitong.com/developers/models/lightricks/ltx-2.5/text-to-video/pro.md) (`lightricks/ltx-2.5/text-to-video/pro`): from $0.12 / second
- [MiniMax H3 Text to Video](https://doitong.com/developers/models/minimax/h3/text-to-video.md) (`minimax/h3/text-to-video`): from $0.05 / second

## Links

- HTML page: https://doitong.com/developers/models/kling-video/v1.6/pro/effects
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=kling-video/v1.6/pro/effects
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/kling-video/v1.6/pro/effects