Fees and costs

These are target rates, not constants or a live network query. The current versioned source initializes rates to zero; each deployment and sale has its own settings. Resolve the publication and policy objects before using the numbers below.

Presale fees

Blast’s fee policy targets these rates. The 15% trading-fee share takes effect when the on-chain policy is updated; check each sale’s recorded terms for its actual rates:

Fee	Blast receives	When
Raise fee	2% of the successful raise target, paid in the quote coin	At launch
Token fee	1% of the total token supply, paid in the sale token	At launch
Trading-fee share	15% of each coin’s collected liquidity-provider fees	After launch, when fees are collected

The raise and token fees are included in the sale’s allocations. You do not pay an extra charge when committing or claiming. For a target of 100,000 SUI and a supply of 1 billion tokens, Blast receives 2,000 SUI and 10 million tokens if the sale launches. These are separate amounts in different coins.

Each sale records its own rates. Blast can change them before commitments open; its raise and token rates are fixed once the sale opens. Blast can change a launched pool’s trading-fee share later. Check the sale’s terms. See Fees and revenue for the full split and Addresses for the deployment behind these rates.

Refunds

Blast charges no fee on commitments, participant claims, or refunds. If the sale is cancelled, your full commitment is refundable. If it is oversubscribed, the unused part is refunded without a Blast fee; only the raise target is used to calculate Blast’s raise fee.

Trading after launch

The exchange charges its pool’s trading fee when you buy or sell after launch. Blast’s 15% share comes from the liquidity-provider fees collected by the vault. It is a share of those fees, rather than a percentage of your whole trade. If the vault collects 100 SUI in fees, Blast’s share is 15 SUI before the remaining 85 SUI is split between the team’s fee recipients and the holder allocation.

Trades made through the Blast app can also include a separate Blast app trading fee. Its rate and amount are shown in the trade quote when enabled, and it is deducted from the swap’s output. Review the quote before confirming; app trading fees and exchange fees are separate from the presale’s raise and token fees.

Network and other costs

Sui transactions need gas. You pay the network fee when you submit a transaction yourself, unless the app sponsors it or someone else submits a permitted claim for you. Gas is separate from Blast’s fees and is not returned as part of a presale refund.

Moving funds across chains can also incur bridge or third-party fees. Check those quotes separately.