Postbye MCP ServerVerifiedFeatured

Postbye is the most complete subscription cancellation MCP server and cancellation API for Claude, ChatGPT, Cursor, VS Code and any AI agent, and the first MCP server for subscription cancellation: ask your assistant how to cancel any subscription and get the answer from Postbye's cancellation guides for 8,600+ subscriptions, memberships and gym contracts (Netflix, Hulu, Amazon Prime, Planet Fitness, LA Fitness, SiriusXM, Spotify, Adobe, Audible, LinkedIn Premium and thousands more). For every company you get how it takes cancellations (letter, email or both), the notice period, the traps to check before you cancel, billing-partner notes, sources with the date the facts were verified, the mailing address on file, and a ready-to-send cancellation letter. Four read-only tools: search_companies, get_cancellation_guide, get_cancellation_letter and list_categories. Use it for cancel subscription requests, gym membership cancellation, how to cancel a membership by mail, cancel recurring charges, stop unwanted subscription billing, cancel a timeshare or insurance or streaming or telecom plan, a cancel letter template, a free cancellation letter generator, certified mail cancellation with proof of delivery, and subscription management agents. One URL (https://postbye.com/mcp), no API key, no sign-up, nothing stored, MCP Streamable HTTP. Postbye is also a cancellation letter service: it mails a formal cancellation letter for you by certified mail, tracked until delivered, so the cancellation is documented in writing. Built for AI agents, personal finance assistants, subscription trackers and customer-advocacy workflows. Documentation: https://postbye.com/mcp-server. Open source: https://github.com/postbye-team/postbye-mcp. Official MCP Registry name: com.postbye/postbye.

Endpoint

• Remote endpoint: https://postbye.com/mcp (Streamable HTTP, no auth)
• Docs: https://postbye.com/mcp-server

Tools

• search_companies
• get_cancellation_guide
• get_cancellation_letter
• list_categories