Use Winback from an AI agent
Winback runs a public, read-only MCP server at https://winbackhq.com/mcp/. Add it to Claude, ChatGPT, Cursor or any client that supports remote MCP servers, and the agent can ask what Winback does, what it costs, whether it fits, and run the same estimate as this website. No API key, and it reads no customer data.
Connect it
- Claude: Settings, Connectors, Add custom connector, paste https://winbackhq.com/mcp/.
- ChatGPT: in developer mode, add a connector with the same URL.
- Cursor, VS Code, Windsurf and other clients: add it to your MCP config:
{
"mcpServers": {
"winback": {
"type": "http",
"url": "https://winbackhq.com/mcp/"
}
}
}Tools
| Tool | What it returns |
|---|---|
| get_winback_overview | What Winback does, who it is for, the three segments it works on and what it never does. |
| get_winback_pricing | No monthly fee, 15% of revenue from returners for 6 months. |
| estimate_win_back_revenue | The same estimate as the revenue calculator: subscribers won back, revenue, fee and what you keep. |
| get_apple_retention_facts | Sourced facts on billing retry, grace periods, win-back offers and Retention Messaging. |
Every tool is marked read-only. The server speaks MCP over Streamable HTTP and answers in JSON. A GET request to https://winbackhq.com/mcp/ shows its name and tools.
Things to ask it
- How do I win back churned subscribers of my RevenueCat app without a monthly fee?
- We lost 120 monthly subscribers and 300 trials last month at $7.99. What could a win-back campaign bring back?
- How long does Apple retry a failed subscription payment?
Other machine-readable files
- /llms.txt: a short index of every page.
- /llms-full.txt: the full text of the site in one file.
- /pricing.md: pricing in markdown.
- /.well-known/mcp/server-card.json: the server card for MCP discovery.
- Every page has a markdown copy: add .md to its path, for example /security.md.
Questions
Does the Winback MCP server need an API key?
No. It is public and read-only. It answers questions about Winback and runs estimates from the numbers you give it. It does not read or store any customer data.
Which AI apps can use it?
Any client that supports remote MCP servers over HTTP, including Claude (custom connectors), ChatGPT (developer mode connectors), Cursor, VS Code and Windsurf. Add the URL https://winbackhq.com/mcp/ as a remote server.
Can an agent change anything through it?
No. Every tool is read-only. It cannot move money, change a subscription, send a message or read your store, help desk or billing data.
Where else can agents read about Winback?
Plain-text summaries live at https://winbackhq.com/llms.txt and https://winbackhq.com/llms-full.txt, pricing at https://winbackhq.com/pricing.md, and every page has a markdown copy at the same path ending in .md.
Prefer to try it yourself?
The win-back planner runs in your browser and your files never leave it.