McpStamp Dunning Letters for ChatGPT

io.github.theluckystrike/dunning-letters

Chase unpaid invoices: reminder, firm reminder and final notice letters, and a daily chase list.

client:ChatGPT transport:streamable-http runtime:mcpb tools:11

Install McpStamp Dunning Letters in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.zovo.one/mcp/dunning-letters

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