Polar MCP by usefulapi
Products, customers, orders, subscriptions, benefits, revenue metrics and refunds.
Connect it
Settings → Connectors → Add custom connector
URL: https://polar-sh.usefulapi.io/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://polar-sh.usefulapi.io/mcp{
"mcpServers": {
"polar-sh": {
"url": "https://polar-sh.usefulapi.io/mcp"
}
}
}claude mcp add --transport http polar-sh https://polar-sh.usefulapi.io/mcp{
"servers": {
"polar-sh": {
"type": "http",
"url": "https://polar-sh.usefulapi.io/mcp"
}
}
}26 tools, verified live
polar_list_organizationsread-onlyList the organisations the token can act for. Start here — most other tools take an organization_id. Polar: GET /v1/organizations/.
polar_list_productsread-onlyList products, optionally filtered by archived state, recurrence or a text query. Polar: GET /v1/products/.
polar_get_productread-onlyFetch a single product with its prices and attached benefits. Polar: GET /v1/products/{id}.
polar_list_customersread-onlyList customers, optionally by email or a text query. Polar: GET /v1/customers/.
polar_get_customerread-onlyFetch a single customer by Polar id. Polar: GET /v1/customers/{id}.
polar_get_customer_stateread-onlyFetch everything about one customer in a single call — active subscriptions, granted benefits and entitlements. The best answer to 'what does this customer currently have?'. Polar: GET /v1/customers/{id}/state.
polar_get_customer_state_by_external_idread-onlySame as polar_get_customer_state, but looked up by YOUR external id rather than Polar's — the usual path when you hold your own user id. Polar: GET /v1/customers/external/{external_id}/state.
polar_list_ordersread-onlyList orders, filtered by customer, product, subscription, status or a date window. Polar: GET /v1/orders/.
polar_get_orderread-onlyFetch a single order with its line items, discount and tax. Polar: GET /v1/orders/{id}.
polar_list_subscriptionsread-onlyList subscriptions, filtered by customer, product, status, active state or cancellation window. Polar: GET /v1/subscriptions/.
polar_get_subscriptionread-onlyFetch a single subscription with its product, price and period. Polar: GET /v1/subscriptions/{id}.
polar_get_metricsread-onlyFetch revenue and subscription metrics over a date range, bucketed by interval — orders, revenue, MRR, active subscriptions. Polar: GET /v1/metrics/.
polar_list_benefitsread-onlyList benefits — the things a product grants, such as licence keys, file downloads or Discord roles. Polar: GET /v1/benefits/.
polar_list_benefit_grantsread-onlyList who has been granted one benefit, and whether the grant is still active. Polar: GET /v1/benefits/{id}/grants.
polar_list_discountsread-onlyList discount codes and their redemption limits. Polar: GET /v1/discounts/.
polar_list_refundsread-onlyList refunds, filtered by order, subscription, customer or success. Polar: GET /v1/refunds/.
polar_list_license_keysread-onlyList issued licence keys and their status. Polar: GET /v1/license-keys/.
polar_list_metersread-onlyList the usage meters that aggregate events into billable quantities. Polar: GET /v1/meters/.
polar_get_meter_quantitiesread-onlyFetch the aggregated quantities a meter has recorded over a window — what usage-based billing will charge for. Polar: GET /v1/meters/{id}/quantities.
polar_list_eventsread-onlyList the raw usage events ingested for metering, filtered by customer, meter, name or time. Polar: GET /v1/events/.
polar_list_webhook_deliveriesread-onlyList webhook delivery attempts with their HTTP results — the tool for 'why did my webhook not arrive?'. Polar: GET /v1/webhooks/deliveries.
polar_list_webhook_endpointsread-onlyList the configured webhook endpoints and their subscribed events. Polar: GET /v1/webhooks/endpoints.
polar_redeliver_webhook_eventcan modifyQueue one webhook event for redelivery after your endpoint recovered. Polar: POST /v1/webhooks/events/{id}/redeliver.
polar_create_refundcan modifyRefund an order, in full or in part. This moves real money back to the customer. Polar: POST /v1/refunds/.
polar_cancel_subscriptioncan modifyCancel a subscription at the end of its current period. The customer keeps access until then. Polar: PATCH /v1/subscriptions/{id}.
polar_create_checkout_linkcan modifyCreate a reusable checkout URL for one or more products — the link you put in a page or an email. Polar: POST /v1/checkout-links/.
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