Connectors · Accounting & finance

Polar MCP server for AI agents.

actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Polar and the rest of your systems. It gives your agent 126 Polar actions (61 reads, 48 writes and 17 that wait for a confirmation) and holds the Polar credential itself, so the agent never does. It paces Polar's limits and records every call.

Connect Polar free See pricing

100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you.

claude mcp add --transport http actionlake https://connect.actionlake.com/mcp

126actionsin one signed file
61readlook, never change
48writecreate and update
17wait for a yesdestructive, confirmed first

Set up

Connect Polar in three steps.

01
Add actionlake to Claude.
Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us.
https://connect.actionlake.com/mcp
02
Connect Polar.
Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. actionlake stores what you paste write-only, sealed under your tenant's key.
- access_tokenPolar Organization Access Token (Polar dashboard > organization Settings > Developers > New Token, with the scopes…
- hostWhere your Polar lives: your host
```
account { op: "connections.requirements", service: "polar" }
# free: exactly what to paste, and what is found for you
```

Make the first call. Check before a write.

Ask in plain words; Claude picks the action. Before anything changes, check validates the call and prices it, for free.

do    { action: "polar.products.list" }# list products · read · 1 upstream callcheck { action: "polar.products.create", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent

Polar at a glance

Sign-in: Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead.
You provide: access_token
Setup fields: host
Limits we pace to: 500 calls a minute, per connection
API covered: Polar API v1 (OpenAPI 2026-04)api.polar.sh
Built from: Polar's documentation, read 23 October 2026polar.sh polar.sh
Service file: Version 1.0.0, signed (Ed25519)
Cached reads: 60 of 61 reads, for up to 5 minutes; a write clears what it affects
Shared entities: 4, so ask can line Polar up with your other systems
Data: Processed and stored in Sydney, Australia. No US region yet

Capabilities

What an AI agent can do in Polar.

126 actions in 30 areas. Every one carries its effect, so a key can allow the reads and hold the rest.

61readlook, never change
48writecreate and update
17destructivewait for a confirmation

Customers
12
7 read · 3 write · 2 destructive
List Customers · Create Customer · Get Customer · Update Customer
Customer members
8
2 read · 4 write · 2 destructive
Create Member · Create Member by Customer External ID · Get Member · Get Member by External ID
Orders
8
4 read · 4 write · 0 destructive
List Orders · Create Order · Get Order · Update Order
Benefits
7
4 read · 2 write · 1 destructive
Create Benefit · List Benefits · List Benefit Files · List Benefit Grants
License keys
7
4 read · 2 write · 1 destructive
Activate License Key · List License Keys · Validate License Key · Get License Key
Webhook endpoints
6
2 read · 3 write · 1 destructive
Create Webhook Endpoint · List Webhook Endpoints · Update Webhook Endpoint · Get Webhook Endpoint
Checkout links
5
2 read · 2 write · 1 destructive
Create Checkout Link · List Checkout Links · Get Checkout Link · Update Checkout Link
Custom fields
5
2 read · 2 write · 1 destructive
List Custom Fields · Create Custom Field · Update Custom Field · Get Custom Field

22 more areas · 68 actions

Discounts 5
Files 5
Meters 5
Metric dashboards 5
Products 5
Subscriptions 5
Checkouts 4
Customer seats 4
Events 4
Oauth2 clients 4
Organizations 4
Disputes 3
Customer meters 2
Event types 2
Metrics 2
Payments 2
Refunds 2
Benefit grants 1
Customer sessions 1
Members 1
Webhook deliveries 1
Webhook events 1

Top actions

The Polar API, shaped for agents.

The ids your agent types, what each does, and the one name it shares with other systems. 56 of Polar's 56 action names are shared with at least one other connector, so an agent learns them once.

Action	What it does	Effect	Same name in
`polar.products.list`List Products	List Products.	read	`commerce.product.list`112 connectors
`polar.orders.list`List Orders	List Orders.	read	`commerce.order.list`82 connectors
`polar.customers.list`List Customers	List Customers.	read	`commerce.customer.list`45 connectors
`polar.products.create`Create Product	Create Product.	write	`commerce.product.create`92 connectors
`polar.orders.create`Create Order	Create Order.	write	`commerce.order.create`67 connectors
`polar.subscriptions.list`List Subscriptions	List Subscriptions.	read	`finance.subscription.list`37 connectors
`polar.customers.create`Create Customer	Create Customer.	write	`commerce.customer.create`43 connectors
`polar.customers.delete`Delete Customer	Delete Customer.	destructive	`commerce.customer.delete`31 connectors
`polar.subscriptions.create`Create Subscription	Create Subscription.	write	`finance.subscription.create`27 connectors
`polar.discounts.list`List Discounts	List Discounts.	read	`commerce.coupon.list`29 connectors
`polar.discounts.create`Create Discount	Create Discount.	write	`commerce.coupon.create`29 connectors
`polar.payments.list`List Payments	List Payments.	read	`finance.payment.list`75 connectors

Try it

Prompts to paste into Claude.

Each one names the Polar actions it will call, so you know what it reads and what it changes before you send it.

Readread
Which Polar orders from the last seven days are still unfulfilled?
callspolar.orders.list
Writewrite
Create Product in Polar. Show me exactly what you will send before you save it.
callspolar.products.create

Governance for Polar

Destructive actions wait for a yes.

17 Polar actions are destructive. These are all of them:

Delete Customerpolar.customers.delete
Delete Discountpolar.discounts.delete
Create Refundpolar.refunds.create
Delete Filepolar.files.delete
Delete Webhook Endpointpolar.webhook_endpoints.delete
Delete Metric Dashboardpolar.metric_dashboards.delete
Delete Custom Fieldpolar.custom_fields.delete
Accept Disputepolar.disputes.accept
Delete Benefitpolar.benefits.delete
Revoke Subscriptionpolar.subscriptions.revoke
Delete Checkout Linkpolar.checkout_links.delete
Revoke Seatpolar.customer_seats.revoke
Delete Clientpolar.oauth2_clients.delete
Delete Memberpolar.customer_members.delete
Deactivate License Keypolar.license_keys.deactivate
Delete Customer by External IDpolar.customers.delete_external
Delete Member by External IDpolar.customer_members.delete_external

A destructive action runs only with confirm: true. Under the human policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after.

dopolar.customers.deleteconfirm_policy: human

Delete Customer?

intent: the user asked me to delete Customer

run suspended · waiting for a named person · key polar-agent cannot confirm itself

In the console, or from an emailed signed link.

a key for this connector

account {  op: "keys.create", name: "polar-agent",  allowed_actions: ["polar.*"], cap_calls: 2000,  confirm_policy: "human_for_writes",  approval_rules: [    { match: "polar.customers.delete", approver: "[email protected]" },    { match: "polar.discounts.delete", approver: "[email protected]" },    { match: "polar.refunds.create", approver: "[email protected]" }  ]}

Illustrative. Scoped to Polar only, capped at 2,000 upstream calls, every write confirmed, and the destructive ones approved by a named person.

Cost

What Polar costs on actionlake.

Every Polar action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call Polar refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

1upstream call per actionall 126 Polar actions
126actions pageeach page of a long list is one call
60reads can be cacheda cache hit costs nothing
100,000calls a month, freepaid plans from US$49 a month for 250,000

See pricing

Action index

Every Polar action.

126 actions by area: the id your agent calls, what it does, and its effect.

Customers12

polar.customers.createCreate Customerwrite
polar.customers.deleteDelete Customerdestructive
polar.customers.delete_externalDelete Customer by External IDdestructive
polar.customers.getGet Customerread
polar.customers.get_externalGet Customer by External IDread
polar.customers.get_stateGet Customer Stateread
polar.customers.get_state_externalGet Customer State by External IDread
polar.customers.listList Customersread
polar.customers.list_payment_methodsList Customer Payment Methodsread
polar.customers.list_payment_methods_externalList Customer Payment Methods by External IDread
polar.customers.updateUpdate Customerwrite
polar.customers.update_externalUpdate Customer by External IDwrite

Customer members8

polar.customer_members.createCreate Memberwrite
polar.customer_members.create_externalCreate Member by Customer External IDwrite
polar.customer_members.deleteDelete Memberdestructive
polar.customer_members.delete_externalDelete Member by External IDdestructive
polar.customer_members.getGet Memberread
polar.customer_members.get_externalGet Member by External IDread
polar.customer_members.updateUpdate Memberwrite
polar.customer_members.update_externalUpdate Member by External IDwrite

Orders8

polar.orders.createCreate Orderwrite
polar.orders.finalizeFinalize Orderwrite
polar.orders.generate_invoiceGenerate Order Invoicewrite
polar.orders.getGet Orderread
polar.orders.get_invoiceGet Order Invoiceread
polar.orders.get_receiptGet Order Receiptread
polar.orders.listList Ordersread
polar.orders.updateUpdate Orderwrite

Benefits7

polar.benefits.createCreate Benefitwrite
polar.benefits.deleteDelete Benefitdestructive
polar.benefits.getGet Benefitread
polar.benefits.listList Benefitsread
polar.benefits.list_filesList Benefit Filesread
polar.benefits.list_grantsList Benefit Grantsread
polar.benefits.updateUpdate Benefitwrite

License keys7

polar.license_keys.activateActivate License Keywrite
polar.license_keys.deactivateDeactivate License Keydestructive
polar.license_keys.getGet License Keyread
polar.license_keys.get_activationGet Activationread
polar.license_keys.listList License Keysread
polar.license_keys.updateUpdate License Keywrite
polar.license_keys.validateValidate License Keyread

Webhook endpoints6

polar.webhook_endpoints.createCreate Webhook Endpointwrite
polar.webhook_endpoints.deleteDelete Webhook Endpointdestructive
polar.webhook_endpoints.getGet Webhook Endpointread
polar.webhook_endpoints.listList Webhook Endpointsread
polar.webhook_endpoints.reset_secretReset Webhook Endpoint Secretwrite
polar.webhook_endpoints.updateUpdate Webhook Endpointwrite

Checkout links5

polar.checkout_links.createCreate Checkout Linkwrite
polar.checkout_links.deleteDelete Checkout Linkdestructive
polar.checkout_links.getGet Checkout Linkread
polar.checkout_links.listList Checkout Linksread
polar.checkout_links.updateUpdate Checkout Linkwrite

Custom fields5

polar.custom_fields.createCreate Custom Fieldwrite
polar.custom_fields.deleteDelete Custom Fielddestructive
polar.custom_fields.getGet Custom Fieldread
polar.custom_fields.listList Custom Fieldsread
polar.custom_fields.updateUpdate Custom Fieldwrite

Discounts5

polar.discounts.createCreate Discountwrite
polar.discounts.deleteDelete Discountdestructive
polar.discounts.getGet Discountread
polar.discounts.listList Discountsread
polar.discounts.updateUpdate Discountwrite

Files5

polar.files.complete_uploadComplete File Uploadwrite
polar.files.createCreate Filewrite
polar.files.deleteDelete Filedestructive
polar.files.listList Filesread
polar.files.updateUpdate Filewrite

Meters5

polar.meters.createCreate Meterwrite
polar.meters.getGet Meterread
polar.meters.get_quantitiesGet Meter Quantitiesread
polar.meters.listList Metersread
polar.meters.updateUpdate Meterwrite

Metric dashboards5

polar.metric_dashboards.createCreate Metric Dashboardwrite
polar.metric_dashboards.deleteDelete Metric Dashboarddestructive
polar.metric_dashboards.getGet Metric Dashboardread
polar.metric_dashboards.listList Metric Dashboardsread
polar.metric_dashboards.updateUpdate Metric Dashboardwrite

Products5

polar.products.createCreate Productwrite
polar.products.getGet Productread
polar.products.listList Productsread
polar.products.updateUpdate Productwrite
polar.products.update_benefitsUpdate Product Benefitswrite

Subscriptions5

polar.subscriptions.createCreate Subscriptionwrite
polar.subscriptions.getGet Subscriptionread
polar.subscriptions.listList Subscriptionsread
polar.subscriptions.revokeRevoke Subscriptiondestructive
polar.subscriptions.updateUpdate Subscriptionwrite

Checkouts4

polar.checkouts.createCreate Checkout Sessionwrite
polar.checkouts.getGet Checkout Sessionread
polar.checkouts.listList Checkout Sessionsread
polar.checkouts.updateUpdate Checkout Sessionwrite

Customer seats4

polar.customer_seats.assignAssign Seatwrite
polar.customer_seats.listList Seatsread
polar.customer_seats.resend_invitationResend Invitationwrite
polar.customer_seats.revokeRevoke Seatdestructive

Events4

polar.events.getGet Eventread
polar.events.ingestIngest Eventswrite
polar.events.listList Eventsread
polar.events.list_namesList Event Namesread

Oauth2 clients4

polar.oauth2_clients.createCreate Clientwrite
polar.oauth2_clients.deleteDelete Clientdestructive
polar.oauth2_clients.getGet Clientread
polar.oauth2_clients.updateUpdate Clientwrite

Organizations4

polar.organizations.createCreate Organizationwrite
polar.organizations.getGet Organizationread
polar.organizations.listList Organizationsread
polar.organizations.updateUpdate Organizationwrite

Disputes3

polar.disputes.acceptAccept Disputedestructive
polar.disputes.getGet Disputeread
polar.disputes.listList Disputesread

Customer meters2

polar.customer_meters.getGet Customer Meterread
polar.customer_meters.listList Customer Metersread

Event types2

polar.event_types.listList Event Typesread
polar.event_types.updateUpdate Event Typewrite

Metrics2

polar.metrics.getGet Metricsread
polar.metrics.get_limitsGet Metrics Limitsread

Payments2

polar.payments.getGet Paymentread
polar.payments.listList Paymentsread

Refunds2

polar.refunds.createCreate Refunddestructive
polar.refunds.listList Refundsread

Benefit grants1

polar.benefit_grants.listList Benefit Grantsread

Customer sessions1

polar.customer_sessions.createCreate Customer Sessionwrite

Members1

polar.members.listList Membersread

Webhook deliveries1

polar.webhook_deliveries.listList Webhook Deliveriesread

Webhook events1

polar.webhook_events.redeliverRedeliver Webhook Eventwrite

Questions

The Polar MCP server, answered.

Is there a Polar MCP server for Claude?

Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 126 Polar actions across customers, customer members, orders and benefits, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Polar.

What do I need to connect Polar?

Polar Organization Access Token (Polar dashboard > organization Settings > Developers > New Token, with the scopes…. Plus your host. The free call account { op: "connections.requirements", service: "polar" } lists exactly what to paste.

Can an AI agent delete or change things in Polar?

Only if its key allows it, and only with an explicit confirmation. 17 Polar actions are destructive, including delete Customer, delete Discount and create Refund. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it.

Will an AI agent use up my Polar API limit?

actionlake paces every call to the limits in the Polar service file: 500 calls a minute per connection. Repeated reads are answered from cache (60 Polar actions can be), which never reaches Polar.

What does a Polar action cost?

One upstream call, the only unit actionlake bills. A list that pages bills one call per page (126 Polar actions page). Cache hits, searches, dry runs and calls Polar refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

Which Polar API does it cover?

The Polar API v1 (OpenAPI 2026-04) at api.polar.sh by default, or the base URL set when you connect. It is built from Polar's documentation as read on 23 October 2026. 126 actions in 30 areas, each one in the signed service file (version 1.0.0).

Does actionlake keep my Polar data, and where?

actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to 5 minutes, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your Polar credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models.

Which AI clients can use it?

Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names.

Give your agent Polar today.

Connect Polar free See pricing

Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.

Polar MCP server for AI agents.

Connect Polar in three steps.

Add actionlake to Claude.

Connect Polar.

Make the first call. Check before a write.

What an AI agent can do in Polar.

Customers

Customer members

Orders

Benefits

License keys

Webhook endpoints

Checkout links

Custom fields