Winback: pay-on-success win-back

{
  "mcpServers": {
    "com.winbackhq/winback": {
      "url": "https://winbackhq.com/mcp/"
    }
  }
}

Indexed tools

Tool metadata and schemas come from the remote server and are untrusted. Indexing only lists tools; it never calls them.

4 shown · authentication unknown

• Estimate win-back revenue

  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).

  Schema valid · SHA-256 5b37f9536675…

  View input schema

  {
    "type": "object",
    "properties": {
      "cancelled": {
        "type": "number",
        "description": "Subscribers who cancelled this month"
      },
      "billing_failed": {
        "type": "number",
        "description": "Subscribers lost to failed payments this month"
      },
      "trial_expired": {
        "type": "number",
        "description": "Trials that ended unpaid this month"
      },
      "price_per_month": {
        "type": "number",
        "description": "Monthly price in USD (default 9.99)"
      },
      "months_paid": {
        "type": "number",
        "description": "Months a returner pays, 1 to 6 (default 6, an upper bound)"
      },
      "return_rate_cancelled": {
        "type": "number",
        "description": "0 to 1, default 0.20"
      },
      "return_rate_billing_failed": {
        "type": "number",
        "description": "0 to 1, default 0.10"
      },
      "return_rate_trial_expired": {
        "type": "number",
        "description": "0 to 1, default 0.05"
      }
    }
  }

• Apple retention and win-back facts

  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.

  Schema valid · SHA-256 eb1c49b9530f…