Approval Studio for ChatGPT
studio.approval/mcp
Approval Studio is an online proofing software for creative teams and everyone working with designs
client:ChatGPT
transport:streamable-http
Install Approval Studio in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.approval.studio/Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs