Mecum — open-source Mac app that lets agents use ANY desktop software
Gives coding agents a dedicated desktop workspace on macOS (via the app or MCP from Claude Code/Codex) so they can operate GUI apps that expose neither an API nor an accessibility tree.
Why it matters
Computer-use without screen-scraping hacks: agents get their own controllable Mac desktop while the human keeps using the machine.
What you could build with it
A researcher automating legacy desktop software with no API could run Mecum to give a coding agent a controllable Mac desktop workspace through MCP. The concrete result: agents completing real GUI workflows in apps that were previously automation dead-ends.
Does it hold up?
Announced via Show HN today; repo dates to early September with only 14 stars, so adoption is nascent. Too early to judge — no third-party reports of agents actually driving apps with it yet.
Learn more
First spotted on github: source.
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