Compositor MCP Server

An MCP server that lets Claude and other AI agents read and edit Compositor projects, the open-source Photoshop alternative for Mac. It runs locally over stdio via the published package.

People who work with compositor, image editing and macos and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-25 · ★ 8 · #48 OF 193 MAINTAINED MEDIA · VERIFIED 2026-09-30

MIT · TypeScript servers · how we verify → /methodology

01 · Install Compositor

Claude Code

claude mcp add josusanz-compositor-mcp -- npx -y compositor-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "josusanz-compositor-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "compositor-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

repo age created 2026-09-22 - young repo, little track record yet

license MIT - declared in the repository

npm package compositor-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.Josusanz is GitHub-verified and matches the repo owner

03 · What Compositor can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Limitations (from the README)

- The preview renderer covers order, folders, visibility, opacity, transforms, raster masks and the blend modes sharp supports. Clipping masks, adjustment layers and layer effects are not rendered yet; the tool reports what it skipped. Compositor's own export is the reference. - Compositor does not watch files for changes. After the agent edits a project that is already open, close and reopen the document (or call op

Latest releases

v0.1.4 · 2026-09-25

All 15 tools now declare MCP annotations (readOnlyHint, destructiveHint, idempotentHint, openWorldHint), so clients can skip confirmation on read-only tools and ask before remove_layer, replace_layer_image…

v0.1.3 · 2026-09-23

Compositor 1.2.6 writes project format version 9 (Gaussian Blur, Motion Blur and Add Noise adjustment layers). This release writes version 9 and accepts projects declaring a newer version: unknown fields and the file's…

v0.1.2 · 2026-09-22

Listed in the official MCP Registry as io.github.Josusanz/compositor. No functional changes since 0.1.0. · claude mcp add compositor -- npx -y compositor-mcp · Generated with Claude Code

04 · Who maintains Compositor

Compositor is maintained by josusanz. It's the only MCP server we track from this author; the repo dates to Sep 2026.

05 · Facts

repository: github.com/josusanz/compositor-mcp
website: https://github.com/Josusanz/compositor-mcp
category: media - ranked #48 of 193 actively-maintained media servers as of 2026-09-30.
release cadence: 4 releases in the last 90 days (latest 2026-09-25)
registry: io.github.Josusanz/compositor (active, first published 2026-09-22 · 2 versions)
packages: npm:compositor-mcp

06 · Compositor FAQ

What is Compositor?

An MCP server that lets Claude and other AI agents read and edit Compositor projects, the open-source Photoshop alternative for Mac. It runs locally over stdio via the published package.

Is Compositor still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-25 and it shipped 4 releases in the last 90 days. We re-verify nightly.

How do I install Compositor?

Run `npx -y compositor-mcp`. You can also paste the ready-made client config above.

Does Compositor run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Compositor

Alternatives to Compositor

Maintained media servers if Compositor isn't the fit.

More media MCP servers · Lacuna Music · Sonicmatch · Pronunciation & Voice Coach · Gongio MCP · Audio Analyzer

More TypeScript MCP servers · Knowtis · RIPE Atlas · Kilotest · Jsdelivr MCP Server · see all