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Fields

Both or neither. They go on POST /bridge/quote and follow the decision through POST /bridge/build. Your share is charged on every transfer you refer, including one on which Bridg itself charges nothing, and is capped at **10∗∗pertransfer,convertedintothesourceassetatBridg′spriceforit.Theplatform′sown10** per transfer, converted into the source asset at Bridg's price for it. The platform's own 10 cap is separate. fees.referral.amountAtomic is the capped amount.
The share is paid on the source chain, so the wallet must be valid for that chain’s VM. An EVM address on a route leaving Solana is 400 invalid_referral_wallet; a rate outside 0 to 15 is 400 invalid_referral_bps. If you refer traffic on more than one chain family, hold one wallet per family.

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Disclosure

The share is shown next to the platform fee, in the same asset, before signing:
referral: null means no referrer was named. platform: null beside a non-null referral is an ordinary outcome: the route saved the user too little for a platform fee, and your share is still paid.

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Settlement

Your share is charged on top of the platform’s and paid straight to your wallet in the same signature: an instruction inside the venue’s Solana transaction, or a fee step beside the EVM bridge call. Nothing is forwarded later. The one case it is not taken is a source chain Bridg has no fee wallet on, where neither cut can be collected. Each fee is a row in the transfer’s fees list on GET /bridge/transfers/{id}: