> For the complete documentation index, see [llms.txt](https://docs.hatsprotocol.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hatsprotocol.xyz/for-developers/v1-sdk.md).

# v1 SDK

Hats Protocol v1 Core and Subgraph SDKs. 

Check out the open source code [here](https://github.com/Hats-Protocol/sdk-v1-core).

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[Core](/for-developers/v1-sdk/core.md)
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[Subgraph](/for-developers/v1-sdk/subgraph.md)
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