Setttle for ChatGPT
ca.setttle/setttle
Read and update double-entry books: accounts, invoices, bills, bank activity and reports.
client:ChatGPT
transport:streamable-http
Install Setttle in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://api.setttle.ca/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs