# try-on API

> Εικονική δοκιμή ρούχων που τοποθετεί εικόνα ενδύματος σε φωτογραφία ατόμου, με επιλογή τύπου ρούχου

Αποδίδει ένα άτομο που φορά συγκεκριμένο ένδυμα. Απαιτεί `human_image_url`, `garment_image_url` και `cloth_type`, το οποίο μπορεί να είναι upper, lower, overall, inner ή outer. Το μέγεθος εξόδου χρησιμοποιεί προκαθορισμένες ρυθμίσεις όπως portrait_4_3 ή square_hd. Τα `num_inference_steps` (1 έως 50), `guidance_scale` και ένας σπόρος είναι ρυθμιζόμενα.

- Model id: `cat-vton`
- Made by: Open model
- Category: Image Editing
- Output: image
- Estimated price per run: $0.018 / run (cheapest run $0.018 (18 API credits))
- Run: `POST https://api.doitong.com/v1/run/cat-vton`
- Quote: `POST https://api.doitong.com/v1/quote/cat-vton`
- Docs page: https://doitong.com/el/developers/models/cat-vton

## Pricing

Price: **$0.018 / run**. Estimated from the typical cost of one run. The quote is exactly what the run charges.

The full example input below costs $0.018 = 18 API credits (1 request × 18 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/cat-vton` 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 |
|---|---|---|---|---|---|---|
| `human_image_url` |  | string (image URL) | yes |  |  | URL που παραπέμπει στην εικόνα του ατόμου. |
| `garment_image_url` |  | string (image URL) | yes |  |  | URL που παραπέμπει στην εικόνα του ενδύματος. |
| `cloth_type` |  | enum (string) | yes |  | `upper`, `lower`, `overall`, `inner`, `outer` | Κατηγορία ενδύματος για τη δοκιμή: upper σημαίνει ένδυμα για το πάνω μέρος του σώματος· lower σημαίνει ένδυμα για το κάτω μέρος του σώματος· overall σημαίνει ολόσωμο ένδυμα· inner σημαίνει εσωτερική στρώση, όπως ένα κοντομάνικο μπλουζάκι κάτω από ένα μπουφάν· outer σημαίνει εξωτερική στρώση, όπως ένα μπουφάν πάνω από ένα κοντομάνικο μπλουζάκι. |
| `image_size` |  | object {width, height} \| enum (string) | no | `portrait_4_3` | `square_hd`, `square`, `portrait_4_3`, `portrait_16_9`, `landscape_4_3`, `landscape_16_9` | Διαστάσεις της παραγόμενης εικόνας. |
| `num_inference_steps` |  | integer | no | `30` | 1 – 50 | Αριθμός βημάτων συμπερασμού προς εκτέλεση. |
| `guidance_scale` |  | number | no | `2.5` | 0 – 20 | Ισχύς προσήλωσης στο prompt για την επιλογή εικόνας, εκφρασμένη ως CFG (Classifier Free Guidance). |
| `seed` |  | integer \| null | no |  |  | Τιμή αρχικοποίησης για την αναπαραγωγιμότητα της εικόνας. Η αναπαραγωγή μιας εικόνας απαιτεί να παραμείνουν αμετάβλητα η τιμή αρχικοποίησης, η είσοδος και η έκδοση του μοντέλου· υπό αυτές τις συνθήκες, το αποτέλεσμα είναι πανομοιότυπο σε κάθε εκτέλεση. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Ο έλεγχος μπορεί να χαλαρώσει με τη ρύθμιση false, εφόσον ο καλών είναι εξουσιοδοτημένος. |

File parameters (`human_image_url`, `garment_image_url`) 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
{
  "human_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
  "garment_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
  "cloth_type": "upper"
}
```

A fuller example:

```json
{
  "human_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
  "garment_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
  "cloth_type": "upper"
}
```

## 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/cat-vton?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "human_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "garment_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "cloth_type": "upper"
  }'

# 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/cat-vton?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "human_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "garment_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "cloth_type": "upper"
  }),
});
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 = {
    "human_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "garment_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "cloth_type": "upper",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/cat-vton", 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": "cat-vton",
      "input": {
        "human_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "garment_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "cloth_type": "upper"
      },
      "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": "cat-vton",
  "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": 18,
    "usd": "0.018",
    "charged": 18,
    "refunded": 0
  },
  "input": {
    "human_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "garment_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "cloth_type": "upper"
  },
  "output": {
    "image": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200,
      "width": 1024,
      "height": 768
    }
  },
  "outputs": [
    {
      "type": "image",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "width": 1024,
      "height": 768,
      "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 |
|---|---|---|
| `image` | object {url, content_type, file_name, file_size, width, height} | Εικόνα που παράγεται ως έξοδος. |

## Related models

- [FLUX.1 Kontext \[pro\]](https://doitong.com/developers/models/flux-pro/kontext.md) (`flux-pro/kontext`): $0.04 / image
- [GPT Image 2.5 Edit](https://doitong.com/developers/models/openai/gpt-image-2.5/flare/edit.md) (`openai/gpt-image-2.5/flare/edit`): from $0.12 / image
- [Nano Banana 2 Edit](https://doitong.com/developers/models/nano-banana-2/edit.md) (`nano-banana-2/edit`): from $0.06 / image
- [Nano Banana Pro Edit](https://doitong.com/developers/models/nano-banana-pro/edit.md) (`nano-banana-pro/edit`): from $0.15 / image
- [Qwen Image 3 Edit](https://doitong.com/developers/models/alibaba/qwen-image-3/edit.md) (`alibaba/qwen-image-3/edit`): from $0.04 / image
- [Seedream 5.0 Pro Edit](https://doitong.com/developers/models/bytedance/seedream/v5/pro/edit.md) (`bytedance/seedream/v5/pro/edit`): from $0.0675 / run of output image
- [Bernini-R Edit Image](https://doitong.com/developers/models/bernini-r/edit-image.md) (`bernini-r/edit-image`): $0.03 / megapixel of output image
- [Boogu Image · Edit](https://doitong.com/developers/models/boogu-image/edit.md) (`boogu-image/edit`): $0.08 / image

## Links

- HTML page: https://doitong.com/developers/models/cat-vton
- 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=cat-vton
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/cat-vton