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Go SDK

Payments & Billing with 6 lines of code. Open Source & Global Merchant of Record.

Polar

An open source Merchant of Record with 20% lower fees

Getting Started

Modern Billing for Developers & Designers

Get set up on Polar in minutes from an existing store

Migrate to Polar

Create digital products on Polar in minutes

Products

Create discounts on products and subscriptions

Discounts

Orders & Subscriptions

You can easily refund orders on Polar - both in full or in parts.

Refunds

Manage Refunds

Analytics

Customer Management

Enable customers to view & manage orders and subscriptions easily

Customer Portal

Authentication

Sandbox Environment

The quickest way to integrate billing in your application

Customer State

Extend the capabilities of your AI Agents with Polar as MCP Server

Model Context Protocol (MCP)

Polar as Model Context Protocol (MCP)

An open source and transparent Merchant of Record

Benefits & How it works

Merchant of Record

Transparent fees at a 20% discount vs. other MoRs

Fees

Get authenticated customer.

**Scopes**: `customer_portal:read` `customer_portal:write`

Get Customer

Get a customer portal's organization by slug.

Get Organization

Stay up to date with the latest changes and improvements to Polar.

Product Updates

Stay up to date with the latest changes, improvements and deprecations to the Polar API.

API Changelog

We love to support customers, quickly. Reach out anytime.

Support

Sidebar title

Welcome to Polar

Create Checkout Session

Get Checkout Session

List Checkout Sessions

List Organizations

Create Organization

Update Organization

Get Subscription

List Subscriptions

Update Subscription

Revoke a subscription, i.e cancel immediately.

Bootup

Features

Integrate

Merchant of Record (MoR)

Go SDK