deBridge takes a flat fee for each cross-chain message transfer, which users pay for decentralization and confidence since half of all fees will go as a reward to deBridge validators who will be financially liable for the proper operation of the protocol as liquid assets staked for them will act as protocol financial guarantees. The fee is paid in the blockchain’s native (gas) token. For example, if the transfer is performed from the Ethereum chain, then the fixed ETH amount will be deducted from the user’s wallet towards the protocol treasury on Ethereum. Fees paid for every sent message can be seen in deBridge Explorer or retrieved from the state of the DebridgeGate smart contract.
deBridge flat fees can be changed by governance. Hence, for any on-chain interactions with deBridge, fees must not be hardcoded but queried dynamically from the state of the DebridgeGate smart contract.

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Current flat fee for messages sent from different chains

ChainChain IDInternal Chain IDMessage Transfer FeeBlock Finality
Arbitrum42161421610.001 ETH12
Avalanche43114431140.05 AVAX12
BNB Chain56560.005 BNB12
Ethereum110.001 ETH12
Polygon1371370.5 MATIC256
Fantom2502504 FTM12
Solana756516475651640.03 SOLStatus Finalized
Linea59144591440.001 ETH12
Optimism10100.001 ETH12
Base845384530.001 ETH12
Neon2450229341000000010.75 NEON32
Gnosis1001000000021 xDAI12
Lightlink (suspended)18901000000030.0005 ETH12
Metis10881000000040.02 METIS12
Bitrock717110000000520 BROCK12
Sonic1461000000141 S24
CrossFi41581000000061 XFI12
Cronos zkEVM3881000000107 zkCRO12
Abstract27411000000170.0004 ETH12
Berachain800941000000200.02 BERA12
Story15141000000130.01 IP12
HyperEVM9991000000220.05 WHYPE12
Zircuit489001000000150.001 ETH12
Flow7471000000092.5 FLOW12
Zilliqa3276910000000850 ZIL12
BOB608081000000210.001 ETH12
Mantle50001000000232 MNT12
Plume988661000000247 PLUME12
Sophon501041000000251 SOPH12
Sei13291000000276 SEI12