This Referral program is what Jupiter uses to power our referral system across all Jupiter programs. Anyone can also use this Referral program.
In the Jupiter Swap program, anyone can append a referral token account that matches the output mint and set a percentage to receive a swap fee. Part of the swap fee goes to Jupiter, and part of the swap fee goes to the referral.
The referral token account is created using the Referral program. Hence, not all token accounts can be used. On the Jupiter Swap program, it has a simple check on it:
#[account(
mut,
token::authority = project_public_key, // The `Project` account, PDA of ["project", base]
)]
referral_token_account: Account<'info, TokenAccount>So, only the referral token account with the project authority can be used as the referral_token_account.
For a protocol that wants to use this Referral program, you must create a Project by calling initialize_project with your chosen base key, admin, and project name. The base key is the key identifier of your project.
You can set a default_share_bps on the percentage you want to share with your referrer.
For referrers who want to get referral fees for protocols that integrate with the Referral program, they will have to first create their own Referral account by calling initialize_referral_account with the correct project account, the referral_account, and their own partner account. The partner account is the admin of this referral account.
Then, for each token mint they wish to receive the referral fee from, they must call initialize_referral_token_account to create the token account. That token account will be the referral_token_account that they use above.
You can also check out the web dashboard here if you want to interact with the contract via browser: https://referral.jup.ag/.