Aseprite MCP Tools

A Python MCP server that gives AI assistants full control over Aseprite for creating pixel art and animated sprites.

104 tools across 17 categories — canvas, drawing, layers, animation, palettes, effects, slices, tilemaps, exports, visual-feedback/analysis tools, and a raw Lua escape hatch. The tool set is designed so an LLM has everything it needs to produce good pixel art, not just primitives: shading ramps with hue shifting, ordered dithering, outlines, retro palette presets with quantization, onion-skin renders, and frame diffing for animation work.

Example: a swordsman, drawn and animated by Claude

Task 1 — "Draw me a pixel art of a swordsman." 32×32 still, exported at 10×.	Task 2 — "…a sword slash attack sequence, from windup to follow-through." 4-frame animation, exported with export_tag.
The same slash as a spritesheet (export_spritesheet): windup → extension → swing → follow-through.

Both were created end-to-end by Claude Fable 5 through this server's MCP tools — drawing, checking its own work with scaled export_frame previews and render_onion_skin, then exporting. The tasks recreate the benchmark from Draw Me a Swordsman by Lj Miranda, whose findings inspired this server's expanded toolset.

Tool Categories

Category	Tools	Description
Canvas	6	Create sprites, manage layers/frames, set the active state
Drawing	14	Pixels, lines, rectangles, circles, ellipses, polygons, paths, fills, gradients
Layers	7	Delete, rename, duplicate, reorder, blend modes, merge, flatten
Selection & Regions	4	Move, copy, and erase rectangular regions or colors
Effects	5	Outlines, color replacement, HSL adjustment, ordered dithering
Animation	24	Frames, cels, tags, tweening with easing, propagation
Palette	8	Get/set palettes, retro presets, color ramps, quantization, color modes
Transform	4	Flip, rotate, resize, crop
Slices	5	Named regions, 9-patch centers, pivot points
Tilemap	5	Tilemap layers, tileset editing, tile placement
Export & Import	7	PNG, GIF, sprite sheets, per-layer/per-tag export, image import
Inspection	3	Read pixels and sprite metadata
Analysis & Visual Feedback	3	Onion-skin renders, frame diffing, color statistics
Quality	4	Validate and sanitize animation consistency
Scene	1	Copy layers between sprite files
Preview & Guide	3	Local HTTP preview server, workflow guide
Scripting	1	Raw Lua escape hatch for anything not covered above

Canvas

Tool	Description
create_canvas	Create a new sprite with the given dimensions
add_layer	Add a new layer, optionally inside a named group
add_group	Add a new (optionally nested) group layer
add_frame	Append a new frame
set_frame	Set the act

... View full README on GitHub