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Winback: pay-on-success win-back MCP Server

by winbackhq Your server? Claim it
answering

Winback: pay-on-success win-back is answering right now. Last checked 2 min ago. It exposes 4 tools.

Pay-on-success win-back for RevenueCat and Stripe apps. Read-only pricing, fit and estimates.

Uptime history 9 days of history · worst day 99%
9 days agonow
100.0%
Uptime 24h
92 of 92 checks
4
Tools
read from the server
262 ms
Response time
average over 24h
open, no key
Access
streamable-http

Winback: pay-on-success win-back missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add winback --transport http https://winbackhq.com/mcp/
Settings → Connectors → Add custom connector, then paste this address
https://winbackhq.com/mcp/
~/.codex/config.toml
[mcp_servers.winback]
url = "https://winbackhq.com/mcp/"
.cursor/mcp.json
{
  "mcpServers": {
    "winback": {
      "url": "https://winbackhq.com/mcp/"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "winback": {
      "type": "http",
      "url": "https://winbackhq.com/mcp/"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

winback
get_winback_overview
What Winback does, who it is for, what it needs and what it does not do. Use this when someone asks how to win back churned subscribers of an iOS, Android or Stripe subscription app.
get_winback_pricing
Winback pricing terms.
apple
get_apple_retention_facts
Sourced facts on App Store billing retry, grace periods, win-back offers and Retention Messaging, for founders planning a win-back.
estimate
estimate_win_back_revenue
Same formula as https://winbackhq.com/tools/win-back-revenue-calculator/ : people lost per segment times a return rate, times price, over up to 6 months, minus the 15% fee. Default return rates: cancelled 20% (RevenueCat SOSA 2026 monthly reactivation within a year, a reference not a forecast), billing failed 10% (assumption), trial expired 5% (assumption).

Endpoints

URLTransportStateLatencyChecked
https://winbackhq.com/mcp/ streamable-http answering 254 ms 2 min ago

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Winback: pay-on-success win-back — questions

Answers built from our own checks of this server.

What can Winback: pay-on-success win-back do?
It exposes 4 tools, read directly from the server on our last check. Among them: estimate_win_back_revenue, get_apple_retention_facts, get_winback_overview, get_winback_pricing. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Winback: pay-on-success win-back working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 262 ms. The bar chart above shows every period we have measured.
How do I connect Winback: pay-on-success win-back?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Winback: pay-on-success win-back need an API key?
No. Winback: pay-on-success win-back completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Winback: pay-on-success win-back?
It answers our handshake in 262 ms on average, which is faster than 64% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.