Semiotic for ChatGPT

io.github.nteract/semiotic

Verified React chart generation: select, validate, repair, render, and inspect charts through MCP.

client:ChatGPT transport:streamable-http runtime:npm tools:5

Install Semiotic in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://semiotic-mcp-server-481507046413.us-west1.run.app/mcp

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