Rengi Forge: Sprite Pixelate

x402

Rengi Forge: Sprite Pixelate is a paid API for AI agents from rengi.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-22).

Detects the true pixel grid of an image, downscales it to that grid, snaps colors to a palette, and applies hard alpha — converting raster art into clean pixel art.

Price / call$0.1

Seller volume →—

Success—

StatusUnknown

How this service works

Sprite tools: Clean pixel art: find the true pixel grid, downscale to it, snap to a palette, hard alpha. Full schema: https://rengi.dev/v1/sprite-tools/schema

Output

Returns a processed image (PNG) where the true pixel grid has been identified and aligned, the image downscaled to that grid resolution, colors snapped to the nearest palette entry (or auto-quantized to the specified count), and transparency binarized with a hard alpha threshold.

Example use cases

Clean up imported sprite sheet

“I have a sprite sheet I exported from Aseprite but it got blurry somehow — can you pixelate it back to clean pixel art, auto-detect the pixel scale, and reduce it to 16 colors?”

Snap sprite to NES palette

“Take this character sprite and snap its colors to the NES palette — here are the hex codes — and make sure the alpha is hard-cut at threshold 200. Keep 16 colors max.”

Pixelate photo for retro game asset

“Turn this photo of a forest into pixel art for my indie game — detect the best pixel grid size automatically, quantize to 8 colors, and give me a clean hard-alpha PNG.”

Technical details

Endpoint

POSThttps://rengi.dev/v1/sprite-tools/pixelate?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to convert or clean up pixel art sprites for 2D game development — especially when you need automatic pixel grid detection, palette snapping to a specific set of colors, and hard alpha in a single API call. Prefer it over generic image resizing APIs because it understands pixel art structure and can auto-detect the native grid without manual input.

Side effects

Image cannot be decoded (invalid base64 or unsupported format) — returns 400 error
No pixel grid detectable in a continuous-tone photo without a scale hint — may produce poor results
Palette array contains invalid hex strings — validation error
Both image and imageUrl omitted — returns missing input error
Scale value out of range (must be 1–64) — returns 422 validation error
Colors value out of range (must be 2–64) — returns validation error

Input

Schema · Request body

Field	Type	Description
image	string	Base64 PNG, JPEG or WebP.
scale	integer	Size of one art pixel in image pixels; detected when omitted.
colors	integer
palette	array	Hex colors to snap to.
imageUrl	string
alphaThreshold	integer

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