# Sam 3 · Video API

> ᠰᡡᠯᡝ ᡩᡝ ᠪᡳᠰᡳᠨ ᠣᠪᡳᡴᡳ ᠵᠠᠯᡤᠠᠨ ᡳᠨᡠ ᠠᠰᡳᠯᠠᠮᠪᡳ᠂ ᡩᡝᠪᡝᠯᡝᠨᡳ ᠵᠠᠯᡤᠠ ᠣᠨᠣᠯᠣᠮᠪᡳ

ᡳᠨᡠ `video_url` ᡩᡝ ᠪᡳᠰᡳᠨ ᠣᠪᡳᡴᡳ ᠵᠠᠯᡤᠠᠨ ᠣᠨᠣᠯᠣᠮᠪᡳ ᠨᡝᠮᡝ ᠠᠰᡳᠯᠠᠮᠪᡳ᠉ `prompt` ᡩᡝ ᠵᡠᠯᡝᡵᡳ ᠵᡠᠰᡝ ᠵᡠᠰᡝ ᠵᡝᠪᡝᠯᡝ ᠵᡝᠯᡤᡳ ᠪᡝ ᠵᠠᠯᡤᠠᠨ ᠠᠮᠪᠠᠨ ᡩᡝ ᠰᠠᠯᡤᠠᠮᠪᡳ᠂ ᠨᡝᠮᡝ `point_prompts` ᠨᡝᠮᡝ `box_prompts` ᠠᠰᡳᠯᠠᠮᠪᡳ᠉ `detection_threshold` 0.1 ᡩᡝᡵᡝ 1 ᡩᡝ ᠪᡳ᠂ `apply_mask` ᡩᡝᠪᡝᠯᡝᠨᡳ ᡩᡝ ᡥᡠᠯᡥᡝ ᠪᡝ ᡠᠯᡥᡳᠨᠠᠮᠪᡳ ᠠᠮᠠᠯᠠ ᠣᠨᡳ ᡝᠮᡤᡳᠯᡝᠮᠪᡳ᠉ ᠣᠨᠣᠯᠣᠮᠪᡠᡥᠠ ᠵᡠᠰᡝ mp4 ᠨᡝᠮᡝ webm ᠪᡳ᠂ ᡝᠮᡠ ᠵᡠᠯᡝᡵᡳ ᠪᠠᠨᡳᠨ ᡳ ᠪᠣᠺᠰᡳ ᠨᡝᠮᡝ zip ᠪᡳ᠉

- Model id: `sam-3/video`
- Made by: Meta
- Category: Video to Video
- Output: video
- Price per 16 frames of your input video: $0.005 / 16 frames of input video (cheapest run $0.005 (5 API credits))
- Run: `POST https://api.doitong.ru/v1/run/sam-3/video`
- Quote: `POST https://api.doitong.ru/v1/quote/sam-3/video`
- Docs page: https://doitong.com/mnc/developers/models/sam-3/video

## Pricing

Price: **$0.005 / 16 frames of input video**. Price per 16 frames of your input video: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

The full example input below costs $0.095 = 95 API credits (19 × 16 frames input video × $0.005).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/sam-3/video` 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

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `video_url` | `video` | string (video URL) | yes |  |  | ᠰᡳᠯᡤᠠᠮᡝ ᡳ ᠰᡠᠨᡤᠠ URL. |
| `prompt` |  | string | no | `` |  | ᠮᡠᠨᡳ ᠵᡠᠯᡝᠯᡝᠮᡝ ᡥᡡᠯᠠᠨ ᡳ ᠵᡠᠯᡝᠯᡝᠮᡝ ᡝᠮᡠ ᡶᡳᠯᡝᠮᡝ ᡩᡝ ᠣᠯᡥᠣ ᠪᡳᠮᡝ, ᠵᡠᠯᡝᠯᡝᠮᡝ 'person, cloth'. |
| `text_prompt` |  | string \| null | no |  |  | [DEPRECATED] ᡝᡵᡝᠮᡝ ᠪᡠᠮᡝ ᠵᡠᠯᡝ ᠪᡝ ᠵᠠᠯᡳᠨ ᠵᡠᠯᡝᠮᡝ ᠪᡳᠮᡝ; 'prompt' ᡳ ᡶᡠᠯᡤᡳ ᠠᠰᡥᠠᠨᠠ. |
| `point_prompts` |  | array of object {x, y, label, object_id} | no | `[]` |  | ᡥᡡᠯᠠᠨ ᡳ ᠵᡠᠯᡝ ᡳ ᡥᡡᠯᠠᠨ ᡩᡝ ᠵᡠᠯᡝ ᠠᠴᠠᠨᠠᠮᡝ᠃ |
| `point_prompts[].x` |  | integer \| null | no |  |  | ᡥᡡᠯᠠᠨ ᡳ X ᠠᠵᡳᠯᠠᠨ ᡩᡝ ᠪᡳᠮᡝ᠃ |
| `point_prompts[].y` |  | integer \| null | no |  |  | ᡥᡡᠯᠠᠨ ᡳ Y ᠠᠵᡳᠯᠠᠨ ᡩᡝ ᠪᡳᠮᡝ᠃ |
| `point_prompts[].label` |  | enum (integer) \| null | no |  | `0`, `1` | ᡝᠨᡩᡝᡵᡤᡳ ᠮᡠᠨᡳ ᠶᠠᠯᡠ ᠮᠠᠰᡴ ᡳ ᠮᡝᡵᡤᡝᠨ: 1 ᡝᠨᡩᡝᡵᡤᡳ, 0 ᠵᡠᠯᡝ ᠪᡳᠮᡝ᠃ |
| `point_prompts[].object_id` |  | integer \| null | no |  |  | ᡝᠮᡠ ᠪᡝᠵᡝ ᡳ ᡥᡡᠯᠠᠨ ᠪᡝ ᠵᡠᠯᡝᠯᡝᠮᡝ ᠣᠮᡳᠯᠣᠮᡝ ᠵᡠᠯᡝ ᡳᠨᡠ object ᠪᡝ ᠵᡠᠯᡝ ᠰᡳᠯᡤᠠᠮᡝ᠃ ᡥᡡᠯᠠᠨ ᠵᠠᠯᡳᠨ ᠪᡠᠴᡳ ᠵᡠᠯᡝ ᠣᠮᡳᠯᠣᠮᡝ ᠪᡝ ᠵᡠᠯᡝᠯᡝᠮᡝ᠃ |
| `box_prompts` |  | array of object {x_min, y_min, x_max, y_max, object_id} | no | `[]` |  | ᠪᡝᠵᡝ ᡳ ᡥᡡᠯᠠᠨ coordinate tuples (x_min, y_min, x_max, y_max). |
| `box_prompts[].x_min` |  | integer \| null | no |  |  | ᡠᠵᡠᠯᡝᠨ ᡳ ᠪᠣᡩᠣᠩᡤᠣ ᡤᡳᠯᡤᠠᠨ ᡳ ᡝᠨᡝᠩᡤᡳ. |
| `box_prompts[].y_min` |  | integer \| null | no |  |  | ᡠᠵᡠᠯᡝᠨ ᡳ ᡝᠨᡝᠩᡤᡳ ᡤᡳᠯᡤᠠᠨ ᡳ ᠵᡠᠸᠠᠨ. |
| `box_prompts[].x_max` |  | integer \| null | no |  |  | ᠪᡝᠵᡝ ᡳ ᠠᠮᠪᠠ X ᠪᡳᠮᡝ᠃ |
| `box_prompts[].y_max` |  | integer \| null | no |  |  | ᠪᡝᠵᡝ ᡳ ᠠᠮᠪᠠ Y ᠪᡳᠮᡝ᠃ |
| `box_prompts[].object_id` |  | integer \| null | no |  |  | ᠵᡠᠯᡝ ᡳᠨᡩᡝᡥᡠᠨ ᠪᡝᠵᡝ ᠪᡝ ᠵᡠᠯᡝᠯᡝᠮᡝ᠃ |
| `apply_mask` |  | boolean | no | `true` |  | ᠰᡠᠨᡤᠠ ᡩᡝ ᠮᠠᠰᡴ ᠪᡝ ᠠᠴᠠᠨᠠᠮᡝ ᠣᠴᡳ ᠪᡳᠮᡝ᠃ |
| `video_output_type` |  | enum (string) | no | `X264 (.mp4)` | `X264 (.mp4)`, `VP9 (.webm)` | ᠪᡠᠶᡝᠮᡝᠨᡳ ᠰᡠᠨᡤᠠᡳ ᡶᡳᠯᡝᠮᡝ. |
| `detection_threshold` |  | number | no | `0.5` | 0.1 – 1 | ᠵᡠᠯᡝ ᡳ ᠮᡝᡵᡤᡝᠨ ᡳ ᠵᡠᠯᡝ 0.0–1.0; ᠵᡠᠯᡝᠯᡝᠮᡝ ᡳ ᠮᡝᡵᡤᡝᠨ ᡳ ᠣᠮᡳᠯᠣᠮᡝ ᡝᠮᡝ ᠵᡠᠯᡝ ᠪᡳᠮᡝ᠃ |

File parameters (`video`) 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
{
  "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

## 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.ru/v1/run/sam-3/video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

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

### JavaScript

```javascript
const API = "https://api.doitong.ru/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/sam-3/video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }),
});
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.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/sam-3/video", 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.ru/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": "sam-3/video",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
      },
      "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": "sam-3/video",
  "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": 95,
    "usd": "0.095",
    "charged": 95,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "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
    },
    "boundingbox_frames_zip": {
      "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.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | ᠰᡳᠯᡤᠠᠮᡝ ᡳ ᠪᡠᠶᡝᠮᡝ ᠰᡠᠨᡤᠠ᠃ |
| `boundingbox_frames_zip` | object {url, content_type, file_name, file_size} \| null | ᡶᡳᠯᡝᠮᡝ ᡳ ᠪᡝᠵᡝ ᡳ ᠪᡝᠵᡝ ᠵᡠᠯᡝ ᠪᡝ ᠵᡠᠯᡝᠯᡝᠮᡝ ZIP ᠠᡵᡴᠠᠨ᠃ |

## Related models

- [Sam 3 · Image RLE](https://doitong.com/developers/models/sam-3/image-rle.md) (`sam-3/image-rle`): $0.005 / run
- [Segment Anything Model 3](https://doitong.com/developers/models/sam-3/image.md) (`sam-3/image`): $0.005 / run
- [Sam 3 · Video RLE](https://doitong.com/developers/models/sam-3/video-rle.md) (`sam-3/video-rle`): $0.005 / 16 frames of input video
- [Sam 3 · 3D Body](https://doitong.com/developers/models/sam-3/3d-body.md) (`sam-3/3d-body`): $0.02 / run
- [Sam 3 · 3D Objects](https://doitong.com/developers/models/sam-3/3d-objects.md) (`sam-3/3d-objects`): $0.02 / run
- [Sam 3 · 3D Align](https://doitong.com/developers/models/sam-3/3d-align.md) (`sam-3/3d-align`): $0.02 / run
- [Sam 3 · Image · Embed](https://doitong.com/developers/models/sam-3/image/embed.md) (`sam-3/image/embed`): $0.005 / run
- [Sam 3 1 · Video](https://doitong.com/developers/models/sam-3-1/video.md) (`sam-3-1/video`): $0.01 / 16 frames of input video

## Links

- HTML page: https://doitong.com/developers/models/sam-3/video
- 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=sam-3/video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/sam-3/video