Jcapple Script MCP Server

A Swift package for executing AppleScript from macOS applications, featuring a built-in MCP server that lets AI assistants control macOS apps through pre-built command shortcuts.

People who need communication tools inside Claude, Cursor, VS Code, or another MCP client. The project is written in Swift.

VERIFIED ACTIVE

LAST COMMIT 2026-08-29 · ★ 27 · #78 OF 105 MAINTAINED COMMUNICATION · VERIFIED 2026-09-18

MIT · Swift · how we verify → /methodology

01 · Install Jcapple Script

Claude Desktop

Settings → Extensions → Install, then select the https://github.com/johnnyclem/JCAppleScript/releases/download/v2.0.0/jcas-mcp.mcpb .mcpb bundle

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 Claude Desktop extension (.mcpb bundle)

license MIT - declared in the repository

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

03 · What Jcapple Script can do

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

Latest releases

v2.0.0 · 2026-08-28

Add MCP server, SPM package, and app shortcut registry · Security hardening, engine refactor, and MCP feature expansion · Add MCP registry publishing pipeline; fix SPM install snippet · New Contributors · @johnnyclem…

04 · Who maintains Jcapple Script

JCAppleScript is maintained by johnnyclem. It's the only MCP server we track from this author; the repo dates to Aug 2013.

05 · Facts

repository
github.com/johnnyclem/jcapplescript
website
https://github.com/johnnyclem/JCAppleScript
category
communication - ranked #78 of 105 actively-maintained communication servers as of 2026-09-18.
release cadence
1 release in the last 90 days (latest 2026-08-28)
registry
io.github.johnnyclem/jcas-mcp (active, first published 2026-08-28)
packages
mcpb:https://github.com/johnnyclem/JCAppleScript/releases/download/v2.0.0/jcas-mcp.mcpb

06 · Jcapple Script FAQ

What is Jcapple Script?

A Swift package for executing AppleScript from macOS applications, featuring a built-in MCP server that lets AI assistants control macOS apps through pre-built command shortcuts.

Is Jcapple Script still maintained?

Yes - as of 2026-09-18, its last commit was 2026-08-29 and it shipped 1 release in the last 90 days. We re-verify nightly.

07 · Alternatives to Jcapple Script

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