TACO has an on-chain referral registry that records who referred whom. It is attribution only: the contract never moves funds and pays no rebate on-chain. Apps and indexers combine the registry’s records with trading-fee events to compute any reward off-chain.

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Referral codes

A referrer registers a unique code. A code is one-time and immutable per referrer — you cannot change your code once registered, and each code string can be claimed by only one referrer.

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Binding to a referrer

A referee binds to a code, which records the referrer for that account. You can also bind a code for an account you own (such as a margin account) if you are its owner. Referring yourself is rejected. Bindings are not permanent — you can change or clear your referral later, with a few rules:
  • Each change starts a cooldown before you can change again (a configurable period, capped at 365 days).
  • Re-binding to the exact same referrer and code is rejected as a no-op.
  • The registry records each change with its timing, so off-chain attribution knows which referrer was active for which period.

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What the contract does not do

The registry holds no funds and never transfers tokens. There is no on-chain commission or rebate — any referral reward is defined and paid by the app or program off-chain, based on the recorded bindings and the market’s fee events.