Handelsregister for ChatGPT

io.github.jkbngb/handelsregister

German Handelsregister + Austrian Firmenbuch for AI agents: master data, financials & ratios.

client:ChatGPT transport:streamable-http tools:12

Install Handelsregister in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://register.agentic-firmenbuch.at/mcp

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