MCP Connector
RevExOS runs a free Model Context Protocol (MCP) server, so you can generate an AR collections email without leaving your Claude conversation.
https://revexos.com/api/mcpIn Claude.ai or the Claude desktop app, go to Settings → Connectors → Add custom connector.
Enter https://revexos.com/api/mcp as the remote MCP server URL and save.
e.g. "Draft a firm collections email for invoice INV-1042, $4,500, due Sep 1, now 20 days overdue." Claude calls the tool and returns a ready-to-send subject and body.
One tool, generate_ar_collection_email, the same logic behind the AR Collections Email Generator. It needs an email address to run - RevExOS uses it only to send occasional updates about new free AR/collections tools, never spam. More RevExOS tools are coming to this connector over time.
RevExOS builds Claude-powered order-to-cash automations, including collections workflows that watch invoice aging and send the right follow-up at the right time without anyone remembering to.
See how RevExOS automates AR →