> For the complete documentation index, see [llms.txt](https://gitbook.opensocial.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook.opensocial.co/features/social-graph/join-tribe.md).

# Join Tribe

OpenSocial users can surf around and join different Tribes. A Join NFT (ERC-721) will be minted every time the user joins a Tribe, which will be recorded in the user’s social graph. Due to account abstraction (ERC-4337), the minting and gas fee can be paid by third parties on the user’s behalf.

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