set_frame_duration

MCP tool from Aseprite MCP by diivi

Set one frame's duration in ms

How to use it

set_frame_duration is exposed by the Aseprite MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the set_frame_duration tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

Install Aseprite MCP

$docker run -it --rm aseprite-mcp:latest

FULL ASEPRITE MCP LISTING

Other tools in Aseprite MCP (39)

Append a new frame

Append N frames with optional duration

Add a new (optionally nested) group layer

Add a new layer, optionally inside a named group

Shift hue/saturation/lightness of a cel — palette swaps, night scenes, shadows

apply_dither_gradient

Two-color gradient using Bayer 4×4 ordered dithering

apply_dither_pattern

Uniform dithered mix of two colors at a given density

apply_gradient_rect

Smooth linear gradient fill in a rectangle

Copy a rectangle to another position, layer, or frame

Create a new sprite with the given dimensions

Delete a frame

Delete a layer by name

draw_ellipse_at

Outlined or filled ellipses with separate x/y radii

Polyline through a point list with thickness

Plot individual pixels with per-pixel colors

Plot pixels on a specific layer/frame

Outlined or filled polygons from a point list

Draw text with anchors, faux bold, outline, drop shadow and letter spacing

duplicate_frame_range

Duplicate a frame range N times

duplicate_layer

Duplicate a layer with all cels, opacity, and blend mode, optionally into a group

Magic-eraser: make all pixels of a color transparent (with tolerance)

Make a rectangle transparent

Flatten all layers into one

list_text_fonts

List the bitmap and TrueType fonts available to drawtext

Width, height, advance and baseline extents — size a panel or centre a label without redrawing to find out

merge_layer_down

Merge a layer into the one below it

Cut a rectangle of pixels and paste it elsewhere

offset_cel_positions

Shift cels by a delta across frames

Add a 1px outline around all opaque pixels

Copy selected layers' cels across a frame range

Rename a layer

Move a layer to a position in the stack

Replace one color with another (with tolerance), preserving alpha

set_cel_opacity

Set a single cel's opacity

set_cel_position

Place a cel at x,y

Set the active frame

set_frame_duration_all

Set every frame's duration

Set the active layer (optionally creating it)

set_layer_blend_mode

Set blend mode (multiply, screen, overlay, ... 19 modes)