Churn Buster MCP

Ask about recovery or cancel flows in plain language, and the answer comes from your account's data. The MCP is available to every Churn Buster account at no extra cost, including the free Measure plan. See how the MCP helps your team measure retention.

What it can answer

• Is this change significant? It checks a move against your account's normal range and flags periods that haven't finished resolving.
• How did we do? Recovery rate by count or dollars, the four outcomes, the split between card updates and retries where your platform reports it, and the recovery curve.
• What changed? When your dunning schedule changed, each schedule's share of campaigns (including A/B tests and targeted schedules), and which billing platforms your failed payments came from.
• How are our cancel flows doing? Save rate, save rate by cancel reason, and how often each offer is accepted.
• Why doesn't this match Stripe? How your processor's dashboard counts differently, and how to line the two up.
• What does this metric mean? Every definition links back to Learn.

What it can't see yet

Filters by processor, plan or segment; individual customers or campaigns; email or SMS content and deliverability; decline codes; test-mode data; billing; campaign settings and what changed in them, beyond when your dunning schedule changed; and the text of cancel feedback.

Going deeper

Segmentation is usually where an investigation finds its answer: first renewal customers against everyone else, monthly against annual plans, one processor against another. Until the MCP can filter by segment, you can export your campaign data from the dashboard and cut it yourself (our team can add custom columns), or bring in our team.

It reads, it doesn't change anything

The MCP can't edit campaigns, settings or customers. Everyone who connects sees the same account data, and only for accounts they belong to that have the MCP turned on. If the assistant can't answer something, it can send a note to our team so we know what to build. We keep a log of MCP requests for about 30 days.

Set it up

1. The account owner turns on the MCP under Settings → Integrations → MCP.
2. Add the server URL, https://mcp.churnbuster.io/mcp, to your assistant:
   • Claude (Team, Enterprise): an organization Owner opens Organization settings → Connectors, clicks + Add → Custom → Web, pastes the URL, clicks Continue, leaves Authentication on Sign in now and OAuth Client on Register automatically, and clicks Add. Then each person opens Settings → Connectors and clicks Connect.
   • Claude (Free, Pro, Max): Settings → Connectors (in the desktop app, click your name at the bottom left, then Settings → Connectors) → + Add, paste the URL, click Continue, keep Sign in now and Register automatically, and click Add.
   • ChatGPT (Business, Enterprise): a workspace admin creates the app under Workspace settings → Apps → Create with the URL and OAuth authentication, then publishes it from Drafts (⋯ → View details → Enable). Each person then opens it from the workspace tab in Plugins and signs in.
   • ChatGPT (Plus, Pro): Plugins → Add → Create MCP App, name it Churn Buster, keep Connection on Server URL, paste the URL, set Authentication to OAuth, and confirm. If Create MCP App isn't there, turn on Developer mode in ChatGPT settings first.
   • Claude Code: claude mcp add --transport http churn-buster https://mcp.churnbuster.io/mcp, then /mcp to sign in.
   • Codex: codex mcp add churn-buster --url https://mcp.churnbuster.io/mcp, then codex mcp login churn-buster. In the Codex app: Settings → MCP servers → Add server, choose Streamable HTTP, paste the URL, click Save, restart Codex, then click Authenticate.
3. Sign in to Churn Buster and click Approve on the read-only access screen.

Disconnect

Remove the connector in your AI app to disconnect yourself. The account owner can also turn off the MCP in Churn Buster, which disconnects everyone on the account.

Questions to start with

• "Has our recovery rate changed in a way that matters this quarter?"
• "Which outcome is costing us the most, and has that changed?"
• "Why doesn't Churn Buster match our Stripe dashboard?"
• "Which cancel reasons save the fewest customers, and which offers do customers take?"

How it measures

The MCP uses the same methodology as your dashboard. It counts complete cohorts only and all four outcomes, credits recovery no matter who retried the card, and judges every change against your account's normal range. The full methodology is public on Learn.