polar-typescript-sdk

By polarsource. Updated July 24, 2026. Categories: Payment.

Integrate Polar billing in server-side TypeScript applications using the versioned createPolar and createPolarCore clients. Use when implementing Polar customers and external IDs, checkout or customer portal sessions, customer-state entitlement checks, webhook validation and processing, API error handling, tree-shakable SDK calls, usage-event ingestion and metered billing, or migrating an application from the old Polar TypeScript SDK.

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SKILL.md

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