Postbye

Postbye (postbye.com) cancels subscriptions for you by mailing a formal cancellation letter, tracked until it is delivered. This free, read-only MCP server gives AI assistants Postbye's cancellation database: search 8,600+ companies, get each company's cancellation method, notice period, common traps and mailing address on file, and generate a ready-to-send cancellation letter. No API key needed. Tools: search_companies, get_cancellation_guide, get_cancellation_letter, list_categories. Remote Streamable HTTP, no auth: https://postbye.com/mcp. Website: https://postbye.com. Contact: support@postbye.com