FASHN Virtual Try-On V1.5

POST/v1/run

Tryon V1.5 by FASHN - AI-powered image editing, style transfer, and transformation. Edit photos with natural language instructions, remove backgrounds, change styles, and enhance images effortlessly.

Request body

Submit an async generation request. The model field selects the model; other fields are model-specific input parameters.

stringmodelrequired

Model identifier. Set to fashn/tryon/v1.5.

Default: fashn/tryon/v1.5

Optional<string>output_format

Output format of the generated images. 'png' is highest quality, while 'jpeg' is faster

Allowed values: png, jpeg

Default: png

Optional<integer>seed

Sets random operations to a fixed state. Use the same seed to reproduce results with the same inputs, or different seed to force different results.

Optional<string>category

Category of the garment to try-on. 'auto' will attempt to automatically detect the category of the garment.

Allowed values: tops, bottoms, one-pieces, auto

Default: auto

Optional<string>garment_photo_type

Specifies the type of garment photo to optimize internal parameters for better performance. 'model' is for photos of garments on a model, 'flat-lay' is for flat-lay or ghost mannequin images, and 'auto' attempts to automatically detect the photo type.

Allowed values: auto, model, flat-lay

Default: auto

Optional<integer>num_samples

Number of images to generate in a single run. Image generation has a random element in it, so trying multiple images at once increases the chances of getting a good result.

Range: 1 to 4

Default: 1

Optional<string>garment_image

URL or base64 of the garment image

Optional<string>model_image

URL or base64 of the model image

Optional<boolean>segmentation_free

Disables human parsing on the model image.

Default: true

Optional<string>moderation_level

Content moderation level for garment images. 'none' disables moderation, 'permissive' blocks only explicit content, 'conservative' also blocks underwear and swimwear.

Allowed values: none, permissive, conservative

Default: permissive

Response Schema

The submit endpoint returns a run response. If its status is pending or running, poll GET /v1/run/{id} with the returned opaque ID until it reaches a terminal state.

stringidrequired

Opaque AGRouter run identifier. Use it exactly as returned; no prefix is guaranteed.

stringstatusrequired

Current public run status.

Allowed values: pending, running, completed, failed, timeout

Optional<string>model

Public AGRouter model name used for this run.

Optional<array<object>>outputs

Present only for completed runs. Each object is capability-specific; inspect the selected model schema for its fields.

Optional<object>error

Present only for failed or timeout runs. Contains a public error type and sanitized message.

Optional<string>error.type

Stable public error category.

Optional<string>error.message

Sanitized error message safe to show to clients.

Optional<object>usage

Usage details when available.

Model capabilities

array<string>capability_tagsrequired

Capabilities declared by the model registry.

Default: image-to-image

stringexecution_moderequired

Execution mode declared by the model registry.

Default: async

# 1. Submit a generation request
curl -X POST https://api.agrouter.ai/v1/run \
  -H "Authorization: Bearer $AGROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "fashn/tryon/v1.5",
  "output_format": "png"
}'

# 2. If the response is still running, poll the returned id
curl https://api.agrouter.ai/v1/run/f3d2e8a1-7c4b-4a12-9d2e-123456789abc \
  -H "Authorization: Bearer $AGROUTER_API_KEY"

Response202 Accepted

{
  "id": "f3d2e8a1-7c4b-4a12-9d2e-123456789abc",
  "model": "fashn/tryon/v1.5",
  "status": "running"
}