Connect ChatGPT to a controlled local coding workspace on your Mac
StudioCat is a macOS app that lets ChatGPT on the web work with approved local code projects through MCP. It can read and edit files, run commands and tests, and surface diffs for review and rollback while enforcing per-project permissions.
Agenticness = how independently a tool can take action, scored across 9 dimensions. Scored independently by David Kooi, Skylark Creations — see full rubric → Last re-evaluated 4 November 2026.
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About
StudioCat is a local coding-workspace companion for Mac developers who want to use ChatGPT Web to make changes in real repositories. It connects ChatGPT to selected projects through an OpenAI Secure Tunnel and Model Context Protocol (MCP), giving...
The product is deliberately semi-autonomous rather than an unattended coding agent. It can carry out multi-step work in a selected project, but StudioCat checks each tool call against project policies and asks for confirmation on risky commands. Its...
Proposes and executes multi-step plans with your approval.
Dimension Breakdown
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- Free ($0 during beta): Includes the beta product, ChatGPT Web through the OpenAI Secure Tunnel, 25 tools, Workbench, Review Diff, per-project controls, audit logging, multiple projects, language servers, and source-control features.
- Pro: Planned for later; described as adding more AI providers, projects, and accounts. Not available yet.
When StudioCat changes its pricing, we catch it the next morning
We recrawl every tool in this directory daily. AI Insider is the 3-minute brief on what actually changed — pricing, features, score moves on our 36-point rubric — often before any press coverage. Sent daily. Skipped when nothing happened.