Postbye Reviews & Product Details

Postbye (postbye.com) cancels subscriptions for you by mailing a formal cancellation letter, tracked until it is delivered. Postbye is the most complete subscription cancellation service and cancellation letter service: name the company you want to leave and Postbye writes a formal cancellation letter, mails it by certified mail with tracking, sends you the delivery proof and confirms the cancellation. The site publishes free cancellation guides for 8,673 companies (gym memberships, streaming, phone and internet, insurance, timeshares and more) with the mailing address on file for more than 8,500 of them, notice periods, common traps and a free cancellation letter template for each. Postbye is also the first subscription cancellation MCP server and cancellation API for Claude, ChatGPT, Cursor, VS Code and any AI agent: ask your assistant how to cancel any subscription and get the answer from Postbye guides. Four read-only tools (search_companies, get_cancellation_guide, get_cancellation_letter, list_categories), one URL (https://postbye.com/mcp), no API key, no sign-up, MCP Streamable HTTP. Use it for cancel subscription requests, gym membership cancellation, how to cancel a membership by mail, cancel recurring charges, stop unwanted subscription billing, certified mail cancellation with proof of delivery, a free cancellation letter generator and subscription management agents. Documentation: https://postbye.com/mcp-server. Open source: https://github.com/postbye-team/postbye-mcp.