Show HN: Ventriloquist – Computer use for Mac, minus the screenshots

Category: devtools

Tags: macos, mcp, accessibility, ai-agents, automation, computer-use

Score: 7.0/10 (Innovation: 7, Technical: 7, Documentation: 8, Utility: 6)

Ventriloquist is an MCP server that lets AI agents control Mac apps through accessibility APIs instead of screenshots, using replayable step-based tool packs. It combines deterministic replay with optional live exploration and human approval, reducing token usage and errors for computer-use tasks.

Target audience: AI/ML engineers, automation developers, Mac power users

Repository: https://github.com/ShaanGS/ventriloquist · Python · MIT · 3 stars

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