Baremetrics MCP server

What the model can do

Subscription analytics from Baremetrics: MRR, ARR, net revenue, active customers, churn, LTV and ARPU for a period and as time series, customers by name or email with their plans and MRR, a customer's events, plans, the event stream (new customers, upgrades, downgrades, cancellations) and chart annotations; can also add or remove a chart annotation, set or remove a goal, and on the Baremetrics API source add or edit customers, add plans, record or cancel subscriptions and record one-off charges and refunds when you ask.

Reads

• baremetrics_sourcesThe Baremetrics account and its data sources (Stripe, Braintree, Chargebee, Recurly, the Baremetrics API…): source ids are what the customer…
• baremetrics_metricsBaremetrics summary metrics for a period: MRR, ARR, net revenue, ARPU, LTV, active customers and subscriptions, new customers, upgrades, downgrades…
• baremetrics_metricOne Baremetrics metric over time, one point per day with the value and the same day one comparison period earlier…
• baremetrics_customersFind Baremetrics customers by name, email, customer id (oid) or a word in their notes, or list them newest first or by lifetime value.
• baremetrics_customerOne Baremetrics customer in full with their event history: plans, MRR, LTV, status, notes, and every event (new customer, charges, upgrades…
• baremetrics_plansPlans in a Baremetrics source: name, price, billing interval, trial, setup fee and whether active.
• baremetrics_eventsThe Baremetrics event stream for a source in a date range: new customers, new subscriptions, upgrades, downgrades, cancellations, reactivations…
• baremetrics_annotationsAnnotations added to Baremetrics charts (a launch, a price change, a campaign): date, metric, text, whether shown on every chart and who added it.

Acts, when you ask

These change something in Baremetrics. The model is told to use them only when you ask for exactly that, and each one is granted by name: per team on a shared connection, by the owner on a personal one.

• baremetrics_create_annotationAdds an annotation to Baremetrics charts on a date (a launch, a price change, a campaign), seen by everyone with access to the account…
• baremetrics_delete_annotationDeletes a Baremetrics chart annotation for everyone, permanently.
• baremetrics_create_goalSets a goal in Baremetrics: a metric's target from a start value on start_date to an end value on end_date…
• baremetrics_delete_goalDeletes a Baremetrics goal for everyone, permanently.
• baremetrics_create_customerAdds a customer record to a Baremetrics source, normally the Baremetrics API source…
• baremetrics_update_customerChanges a Baremetrics customer's name, email or notes (notes replace what is there).
• baremetrics_create_planAdds a plan to a Baremetrics source (normally the Baremetrics API source), for subscriptions recorded with baremetrics_create_subscription.
• baremetrics_create_subscriptionRecords a subscription for a customer on a plan in a Baremetrics source (normally the Baremetrics API source)…
• baremetrics_cancel_subscriptionRecords the cancellation of a subscription in a Baremetrics source, which counts as churn and lowers MRR from that date in every report.
• baremetrics_record_chargeRecords a one-off charge for a customer in a Baremetrics source (normally the Baremetrics API source), which adds to net revenue in its reports.
• baremetrics_record_refundRecords a refund against a charge that was itself recorded through the API (baremetrics_record_charge)…

Connect it

First connect Baremetrics on Dashboard → Connections, then add Memtro to your client once. The Baremetrics tools appear alongside the tools of everything else you have connected; nothing is configured per connector.

claude plugin marketplace add memtro-org/claude-memtro
claude plugin install memtro@memtro --config api_key=sk-memtro-...

{
  "mcpServers": {
    "memtro": {
      "url": "https://platform.memtro.com/api/mcp",
      "headers": {
        "Authorization": "Bearer sk-memtro-..."
      }
    }
  }
}

{
  "mcp": {
    "memtro": {
      "type": "remote",
      "url": "https://platform.memtro.com/api/mcp",
      "headers": {
        "Authorization": "Bearer sk-memtro-..."
      }
    }
  }
}

Who may use it

The key identifies the person, and the server offers that person the tools they may use everywhere else in Memtro. A shared Baremetrics connection is used by the teams an administrator granted it to, tool by tool, on the Permissions page; a personal connection is used by its owner alone, and its tools that act stay off until the owner allows them. See Teams and permissions and Connectors.

Ask it like this

• › What was MRR at the end of October, and how does it compare with 30 days earlier?
• › Who cancelled in the last 7 days, and what plan were they on?
• › Which customers have the highest lifetime value?
• › What has happened on Acme Ltd's account since they signed up?
• › Add an annotation on 1 November to every chart saying the new pricing went live

Questions

Is this an official Baremetrics MCP server?

No. It is Memtro's MCP server with Memtro's Baremetrics connector behind it: the connector reads Baremetrics through its API with the credentials you connect on Dashboard → Connections, and Baremetrics publishes nothing here. The same endpoint carries every other system you connect and Memtro's memory tools.

What does it cost?

Nothing on top of Memtro. One price per organisation by its number of users, from $50 a month for up to 10 users after a 7-day free trial, with every connector, the MCP server, jobs and memory included. You bring your own model keys.

Can it change anything in Baremetrics?

Only when you ask, and only what it has been granted: add an annotation to the charts (a launch, a price change); delete a chart annotation (permanent); set a goal for a metric over a date range; delete a goal (permanent); add a customer to a source; change a customer's name, email or notes; add a plan to a source; record a subscription, which changes MRR; record a subscription's cancellation, which counts as churn; record a one-off charge (no money moves); record a refund against a recorded charge (no money moves). Every other tool reads, searches or lists. An administrator grants each acting tool by name per team, and a personal connection acts only after its owner allows it.

Which clients work?

Any MCP client that speaks Streamable HTTP: Claude Code, Cursor, Claude Desktop, OpenCode, Codex, Zed, Windsurf, Cline and the Anthropic and OpenAI SDKs. There is no local process to run; the server is remote and authenticated with your key.

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