# AI Image Upscaler / Super-Resolution (ESRGAN via fal.ai)

> AI Image Upscaler / Super-Resolution (ESRGAN via fal.ai) is a paid API for AI agents from x402-deployer.x402-deployer.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13, last successful call 2026-07-06).

Upscales and enhances images using ESRGAN super-resolution at 1–8× scale, best for photos and illustrations, powered by fal.ai.

## Facts

- Endpoint: POST https://x402-deployer.x402-deployer.workers.dev/upscale-image
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Last successful call: 2026-07-06
- Success rate: 14% of calls made through Zero
- Activations on Zero: 8
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-deployer-x402-deployer-workers-dev-231f1162
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sdYb4WIDBTLeUrWu1M-cP

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-deployer-x402-deployer-workers-dev-231f1162 -d '<json body>'
```

Example prompt: Can you upscale this image to 4× its original size using ESRGAN super-resolution? Here's the image URL: https://example.com/photo.jpg

## When to prefer this

Choose this endpoint when you need AI-powered image upscaling with ESRGAN super-resolution at a specific scale factor (1–8×), especially for photos and illustrations. Prefer over generic resize tools when quality preservation and detail enhancement matter. Best when the source image is low-resolution and you want a crisp, artifact-free enlargement.

## Known failure modes

- Invalid or inaccessible image URL returns an error
- Scale factor outside the 1–8 range causes a validation error
- fal.ai backend timeout or unavailability returns a 500/503 error
- Unsupported image format returns a format error
- Payment failure (insufficient USDC) blocks the request

## How this service works

AI image upscaler / super-resolution / image enlarger. ESRGAN. 1-8× scale factor. Best for photos and illustrations. fal.ai backend.

## Output

Returns an upscaled, AI-enhanced version of the input image at the requested scale factor (1–8×), produced by the ESRGAN model via fal.ai. Typically includes a URL to the resulting high-resolution image.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-deployer-x402-deployer-workers-dev-231f1162/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-deployer.x402-deployer.workers.dev](https://www.zero.xyz/host/x402-deployer.x402-deployer.workers.dev/llms.txt)