Flowsimp for ChatGPT

com.flowsimp/flowsimp

Turn Mermaid or an indented outline into an editable flowchart link. Completely free, no API key.

client:ChatGPT transport:streamable-http tools:2

Install Flowsimp in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://flowsimp.com/mcp

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