Plainvoice for ChatGPT

ai.plainvoice/mcp

Rewrite AI drafts so they sound like you, while the names and numbers you lock stay as written.

client:ChatGPT transport:streamable-http

Install Plainvoice in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://plainvoice.ai/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs