Polar Sh

io.usefulapiv1.0.0Updated Sep 29, 2026

Products, customers, orders, subscriptions, benefits, revenue metrics and refunds.

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

Lets an assistant read Polar billing data — products, customers, orders, subscriptions, benefits, metrics and refunds — and perform a few write actions.

What it does
A hosted MCP endpoint for Polar that exposes read tools for organisations, products, customers, customer state, orders, subscriptions, revenue metrics, benefits and grants, discounts, refunds, licence keys, usage meters and events, and webhook endpoints and deliveries. It also exposes write tools: redeliver a webhook event, create a refund, cancel a subscription, and create a checkout link. Read tools are read-only; write tools mutate data and clients should confirm them.
When to use it
Useful when an assistant needs to answer questions about Polar billing and subscription data, or to look up a customer's state, orders or revenue metrics without opening the Polar dashboard. Also relevant when you want an assistant to trigger a refund, cancel a subscription, or generate a checkout link as part of a support or operations workflow.
Requirements
Remote streamable HTTP endpoint at no local install. On first connect you paste your Polar credentials, which are validated and stored per-user. Network access to the endpoint is required. Free plan allows 100 tool calls per month; Pro is $9/mo or $90/yr for unlimited calls.
Before you install
Write tools change real billing data: polar_create_refund refunds an order, polar_cancel_subscription cancels a subscription, polar_redeliver_webhook_event resends a webhook, and polar_create_checkout_link creates a checkout link. Polar credentials are pasted into a third-party hosted service and stored per-user there, so consider the scope of the credentials you supply. The service is metered and paid above the free tier.

Installation

In SourceWeft

  1. Open Polar Sh in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "polar-sh": {
      "type": "http",
      "url": "https://polar-sh.usefulapi.io/mcp"
    }
  }
}

README

Polar MCP by usefulapi

Products, customers, orders, subscriptions, benefits, revenue metrics and refunds. Hosted, no local install.

Live endpoint: https://polar-sh.usefulapi.io/mcp · Homepage: https://usefulapi.io

Add to Claude

json
{  "mcpServers": {    "polar-sh": {      "url": "https://polar-sh.usefulapi.io/mcp"    }  }}

On first connect you'll paste your Polar credentials. They are validated, stored per-user, and scoped to you — no keys in config files.

Tools

ToolTypeWhat it does
polar_list_organizationsreadList organisations
polar_list_productsreadList products
polar_get_productreadGet one product
polar_list_customersreadList customers
polar_get_customerreadGet one customer
polar_get_customer_statereadGet a customer's full state
polar_get_customer_state_by_external_idreadGet a customer's state by your own id
polar_list_ordersreadList orders
polar_get_orderreadGet one order
polar_list_subscriptionsreadList subscriptions
polar_get_subscriptionreadGet one subscription
polar_get_metricsreadGet revenue metrics
polar_list_benefitsreadList benefits
polar_list_benefit_grantsreadList grants of a benefit
polar_list_discountsreadList discounts
polar_list_refundsreadList refunds
polar_list_license_keysreadList licence keys
polar_list_metersreadList usage meters
polar_get_meter_quantitiesreadGet a meter's quantities
polar_list_eventsreadList usage events
polar_list_webhook_deliveriesreadList webhook deliveries
polar_list_webhook_endpointsreadList webhook endpoints
polar_redeliver_webhook_eventwriteRedeliver a webhook event
polar_create_refundwriteRefund an order
polar_cancel_subscriptionwriteCancel a subscription
polar_create_checkout_linkwriteCreate a checkout link

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage or manage your subscription.

Pricing

PlanPriceLimit
Free$0100 tool calls / month
Pro$9/mo or $90/yr (2 months free)Unlimited

License

MIT

Source: servers/polar-sh/README.md at commit e28f9c1

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v1.0.0LatestSep 29, 2026