---
title: "Upscale an image"
method: POST
path: "/images/upscale"
tags: ["Images"]
---

# Upscale an image

`POST /images/upscale`

## Request

- Base URL: `https://api.crevio.co/v1`
- URL: `https://api.crevio.co/v1/images/upscale`
- Auth: API key in header `Authorization`

Submits an asynchronous image super-resolution job to the fal.ai queue and returns the queued job immediately. Poll `GET /v1/jobs/{id}` for status and results. Credits are charged only when the job completes successfully.

## Headers

- `Idempotency-Key` string

## Request body

- ImageUpscaleRequest
  - `model` string: A quality tier (fast, balanced, quality) or any fal.ai upscaling endpoint id. Prefer a tier — it tracks the best current model for that price point. Defaults to fal-ai/topaz/upscale/image.
  - `input` object, required: Model-specific input, forwarded to fal verbatim. `image_url` is required.
    - `image_url` string, uri, required: URL of the source image to upscale.
    - `scale` 2 | 4: Upscaling factor. Defaults to 2.
    - `output_format` 'jpeg' | 'png': Output image format. Defaults to jpeg.

## Response `202`

Upscale job queued

- ProviderJob
  - `id` string, required
  - `object` string, required
  - `type` string, required
  - `status` 'queued' | 'processing' | 'completed' | 'failed' | 'cancelled', required
  - `model` string, required
  - `progress` integer, required
  - `input` object, required
  - `result` object, nullable, required
  - `error` string, nullable, required
  - `error_code` string, nullable, required
  - `credits_used` integer, nullable, required
  - `provider_request_id` string, nullable, required
  - `created_at` string, date-time, required
  - `started_at` string, date-time, nullable, required
  - `completed_at` string, date-time, nullable, required

## Other responses

- `400`: Bad request
- `401`: Authentication required
- `402`: Insufficient credits
- `422`: Validation error
- `429`: Rate limit exceeded — 600 requests per minute per credential. Retry after the number of seconds in `Retry-After`.
- `500`: Internal server error

---

[API](https://skmtc.dev/crevio/apis/crevio-api-v1.md) · [All operations](https://skmtc.dev/crevio/apis/crevio-api-v1/llms.txt) · [OpenAPI document](https://skmtc.dev/crevio/apis/crevio-api-v1/revisions/2219f18ad651?raw)