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United Market applies a fee on trading. Referral rewards are paid as a share of the platform fees generated by users you refer.

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Fee Structure

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Notes

  • The trading fee defaults to 0.15% and follows Polymarket’s symmetric model: at a mid-market price it is ~0.15% of notional and tapers toward the price tails. It is configurable per market and per tag.
  • Referral rewards are 30% of the eligible platform fees generated by referred users, attributed on a first-touch basis (the first valid code a new user signs up with).
  • Referral rewards accrue weekly and are paid retrospectively in POINTS (1 POINTS = 1 USDC of value). A minimum of 1 POINTS is required to be paid out; amounts below the threshold carry over to the next payout.
  • The 1% claim fee is deferred and not charged today (it cannot be enforced on the current direct redemption path).
  • Final amounts may vary slightly due to token decimals and on-chain rounding.

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Using the API

  • A market’s effective trading fee is exposed at GET /markets/{id}/fee as feeRateBps (basis points). Sign this exact value into your order’s feeRateBps — see Place an Order.
  • Resolve a referral code to its owner with GET /referral/resolve/{code} (public).
  • Signed-in users can fetch their own code (GET /referral/code), record first-touch attribution (POST /referral/attribution), and view rewards (GET /referral/summary).