> For the complete documentation index, see [llms.txt](https://docs.subsprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.subsprotocol.com/developer-docs/subs-sdk.md).

# Subs SDK

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The SDK is available for Stellar Mainnet and Testnet. [Install it ](https://www.npmjs.com/package/subs-sdk) !
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#### What is Subs SDK?

The **Subs SDK** is a lightweight JavaScript/TypeScript library that makes it easy to create and manage decentralized crypto subscription plans. With just a few lines of code, developers can set up subscription plans, generate checkout links.

Whether you're building a SaaS platform, content service, or any recurring revenue model, Subs SDK lets you go live quickly with fully on-chain payments and plan management.

***