GraphSheets for ChatGPT
ai.graphsheets/graphsheets
Financial models as graphs of named rows, checked by an engine: build, read, propose changes.
client:ChatGPT
transport:streamable-http
Install GraphSheets in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.graphsheets.ai/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs