Fakturownia (InvoiceOcean) MCP Server and API by Cotlet for ChatGPT
dev.cotlet/fakturownia
Fakturownia (InvoiceOcean) small business invoicing MCP server: issue invoice, send invoice.
client:ChatGPT
transport:streamable-http
Install Fakturownia (InvoiceOcean) MCP Server and API by Cotlet in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://cotlet.dev/mcp/v1/fakturownia/connect
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs