Bria Virtual Try On API Documentation
Playground
Try it on WaveSpeedAI!Bria Virtual Try-On dresses a person in reference garments using a person photo, one to three garment or accessory reference images, and optional text instructions for virtual try-on, fashion visualization, e-commerce, and styling workflows. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.
Features
Bria Virtual Try-On lets you visualize garments and accessories on a person using a portrait or full-body photo and one to three reference images. Upload the person image separately from the clothing or accessory references, then optionally add instructions to guide how the items should appear in the final result.
The model is designed for fashion visualization, apparel previews, accessory try-on, and e-commerce workflows where you want to place referenced items onto an existing person image.
Why Choose This?
-
Purpose-built editing
Visualize garments and accessories on a person from reference images. -
Multi-reference support
Combine one person photo with one to three garment or accessory reference images. -
Optional prompt guidance
Images alone are sufficient. Add a prompt only when you want to direct a specific edit. -
Original framing by default
Omitaspect_ratioto retain the person photo’s aspect ratio. -
Standard image output
Receive a PNG or JPEG image URL in the standard WaveSpeed prediction response.
Parameters
| Parameter | Required | Description |
|---|---|---|
| image | Yes | Person photo to edit. Public image URL or Base64-encoded image. JPEG, JPG, PNG, and WEBP are supported. |
| reference_images | Yes | One to three garment or accessory reference images, supplied as public URLs or Base64-encoded images. These are separate from image. |
| prompt | No | Optional instructions to guide the edit. Omit to use the model’s built-in instructions. |
| aspect_ratio | No | Output aspect ratio: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, or 16:9. Omit to preserve the person photo’s aspect ratio. |
| output_format | No | Output image format: png or jpeg. Default: png. |
| seed | No | Random seed for generation. Omit for a random seed. |
How to Use
- Upload a person photo - Provide the base person image in
image. - Add reference images - Supply one to three garment or accessory images in
reference_images. - Guide the edit optionally - Add a concise
promptfor placement or styling details. - Choose output settings - Optionally set the aspect ratio, output format, and seed.
- Submit - Poll the prediction result and retrieve the generated image URL.
Pricing
Pricing is fixed at $0.04 per generated image. Each successful request returns one image.
| Output | Price |
|---|---|
| One generated image | $0.04 |
One to three reference images are included at the same price. prompt, aspect_ratio, output_format, and seed do not add separate charges.
Best Use Cases
- Virtual clothing try-on
- Fashion catalog variations
- Multi-item outfit visualization
Pro Tips
- Use a clear person photo with the relevant body area visible.
- Use clear garment references with visible fabric, patterns, and closures. Use the prompt to explain layering or which existing items to retain.
- Leave
aspect_ratiounset when you want to preserve the original framing. - Keep all input image URLs publicly accessible while the request is processing.
- Use a fixed seed when comparing prompt changes.
Notes
imageandreference_imagesare required;promptis optional.- The limit is one person photo plus one to three reference images, for two to four images in total.
Related Models
- Bria Virtual Try-On — Apply garment or accessory references to an existing person photo for virtual try-on workflows.
- Bria Product Holding — Generate images of a person naturally holding or presenting a referenced product.
Authentication
For authentication details, please refer to the Authentication Guide.
API Endpoints
Submit Task & Query Result
set -euo pipefail
export WAVESPEED_API_KEY="your-api-key"
REQUEST_BODY=$(cat <<'JSON'
{
"image": "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg",
"reference_images": [
"https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg"
],
"aspect_ratio": "1:1",
"output_format": "png"
}
JSON
)
# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
-X POST "https://api.wavespeed.ai/api/v3/bria/virtual-try-on" \
-H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
-H "Content-Type: application/json" \
-d "${REQUEST_BODY}")
TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
printf 'Submission response did not contain a prediction id
' >&2
exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"
# 2. Poll until the prediction finishes.
while true; do
RESPONSE=$(curl --silent --show-error --fail-with-body \
"${RESULT_URL}" \
-H "Authorization: Bearer ${WAVESPEED_API_KEY}")
RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')
case "${STATUS}" in
completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
failed|cancelled|timeout|deleted) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
*) sleep 2 ;;
esac
doneParameters
Task Submission Parameters
Request Parameters
| Parameter | Type | Required | Default | Range | Description |
|---|---|---|---|---|---|
| image | string | Yes | - | The person photo to edit. Public image URL or Base64-encoded image. Supported formats: JPEG, JPG, PNG, and WEBP. | |
| reference_images | array<string> | Yes | - | 1 ~ 3 items | One to three garment or accessory reference images. Each entry is a public image URL or Base64-encoded image. These are separate from the person photo in image. |
| prompt | string | No | - | Optional instructions to guide the edit. Omit to use the model's built-in instructions. | |
| aspect_ratio | string | No | - | 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9 | Optional output aspect ratio. Omit to preserve the person photo's original aspect ratio. |
| output_format | string | No | png | png, jpeg | Output image format. Default: png. |
| seed | integer | No | - | - | Random seed for generation. Omit to let the upstream service choose a random seed. |
Response Parameters
| Parameter | Type | Description |
|---|---|---|
| code | integer | HTTP status code (e.g., 200 for success) |
| message | string | Status message (e.g., “success”) |
| data.id | string | Unique identifier for the prediction, Task Id |
| data.model | string | Model ID used for the prediction |
| data.outputs | array | Output values, usually URL strings; some models return text strings or structured result objects (empty when status is not completed) |
| data.urls | object | Object containing related API endpoints |
| data.status | string | Task status. completed is successful; failed, cancelled, timeout, and deleted are failure terminal statuses. |
| data.created_at | string | ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”) |
| data.error | string | Error message (empty if no error occurred) |
| data.timings | object | Object containing timing details |
| data.timings.inference | integer | Inference time in milliseconds |
Result Request Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| id | string | Yes | - | Task ID |
Result Response Parameters
| Parameter | Type | Description |
|---|---|---|
| code | integer | HTTP status code (e.g., 200 for success) |
| message | string | Status message (e.g., “success”) |
| data | object | The prediction data object containing all details |
| data.id | string | Unique identifier for the prediction |
| data.model | string | Model ID used for the prediction |
| data.outputs | array<string | object> | Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model. |
| data.urls | object | Object containing related API endpoints |
| data.status | string | Status: completed is successful; failed, cancelled, timeout, and deleted are failure terminal statuses |
| data.created_at | string | ISO timestamp of when the request was created |
| data.error | string | Error message (empty if no error occurred) |
| data.timings | object | Object containing timing details |
| data.timings.inference | integer | Inference time in milliseconds |