Cross Chain Bridge · Review
ActiveMultiBit Protocol Review 2026: A BRC20–ERC20 Bridge
MultiBit Protocol is a bridge that moves BRC20 tokens on Bitcoin to and from ERC20 tokens on EVM chains. It targets a narrow niche, but its small TVL and thin published detail call for caution.
By the DappsAtlas editorial team · Updated
DappsAtlas score
5.2/10
Mixed
Our verdict on MultiBit Protocol
5.2/10MultiBit suits users who hold BRC20 tokens and want to move them to EVM chains, or the reverse, through a bridge built for that purpose. Its strength is the narrow focus on Bitcoin-to-EVM token transfers across several networks. The main caveat is thin published detail: fees, custody design and team are not shown on the homepage, TVL is small, and any bridge carries exploit risk. Test with a small amount and read the audit reports first.
Score breakdown
How MultiBit Protocol scores
- Security
- 4.8/10
- Ease of use
- n/a
- Fees
- n/a
- Features
- 5.0/10
Scores run from 0 to 10 and are based only on facts we could verify. Where information was missing we mark the score n/a rather than guess.
What is MultiBit Protocol?
MultiBit Protocol is a cross-chain bridge built around interoperability between the Bitcoin chain and EVM networks. Its stated aim is to unify liquidity between Bitcoin and EVM chains, and it describes itself as a dual-sided bridge for BRC20 and ERC20 tokens.
It has been tracked since December 2023 and lists Bitcoin, Ethereum, Polygon, BNB Chain and BounceBit as supported networks. The protocol has its own token, MUBI.
Current usage looks modest. Total value locked is roughly $112,000, which is small compared with major bridges. The homepage itself carries very little detail, so fees, team and custody design are not published there.
How MultiBit Protocol works
MultiBit connects two token standards that do not natively talk to each other. BRC20 tokens live on Bitcoin, while ERC20 tokens live on Ethereum and other EVM chains. The bridge lets a holder move value from one side to the other so the asset can be used in the destination ecosystem.
Bridges of this type generally work by holding the original asset on one chain and issuing a matching representation on the other. Sending it back reverses the process. The specific custody and validation design that MultiBit uses is not described on its homepage, so users should check the project's documentation and audit reports.
A user connects wallets on both networks, selects the token and direction, pays the network fees, and waits for the transfer to complete on the destination chain.
5 features
Key features
01
BRC20 to ERC20 bridging
Moves BRC20 tokens from Bitcoin to ERC20 equivalents on EVM chains and back, so assets can be used in both ecosystems.
02
Multi-chain coverage
Supports Bitcoin, Ethereum, Polygon and BNB Chain, with BounceBit also listed as a network.
03
Two-way transfers
Described as dual-sided, meaning transfers can run in both directions rather than one way only.
04
Native MUBI token
MUBI is the protocol's own token, listed alongside the bridge as its native asset.
05
Listed audits
Two audits are listed for the protocol, although details are not shown on the homepage.
Pros and cons
What we like
- Targets a specific need: moving BRC20 tokens between Bitcoin and EVM chains
- Two-way design rather than one-directional transfers
- Covers several networks, including Bitcoin, Ethereum, Polygon and BNB Chain
- Two audits are listed for the protocol
- Has been live since late 2023, giving it some track record
Watch out for
- Total value locked is small, at roughly $112,000, which points to limited usage and liquidity
- Bridge fees and transfer limits are not published on the homepage
- Only two audits are listed and the auditors and scope are not named
- Bridges are a common target for exploits, and moving assets across them adds smart-contract and custodial risk
- The project does not publish team, licensing or custody details that a user could check
- MUBI is a low-priced token and its market price has swung widely, so holding it carries price risk
MultiBit Protocol fees
MultiBit does not publish a fee schedule on its homepage. The bridge fee, if any, and the network gas costs on each chain would be shown in the bridge interface before a transfer is confirmed.
Bitcoin-side transactions and EVM-side transactions each carry their own network fees, which vary with congestion. Check the quoted total and any minimum transfer size before you confirm.
Is MultiBit Protocol safe?
Two audits are listed for the protocol, but the auditors, dates and findings are not detailed on the homepage. Readers should look for the full reports before moving meaningful value. The custody and validation model of the bridge is also not described there.
Bridges concentrate funds and have been frequent exploit targets across crypto. No incident is reported, but that is not a guarantee of safety. A small TVL means less capital at risk in the contracts, yet also less liquidity for users. The project does not publish licensing or regulatory information. Use small test amounts first.
6 steps
How to get started with MultiBit Protocol
- 1
Confirm which BRC20 or ERC20 token you want to move and that the bridge supports it.
- 2
Set up a Bitcoin wallet that handles BRC20 tokens and an EVM wallet for the destination chain.
- 3
Open the official bridge from the project's verified website and check the address carefully.
- 4
Start with a small test transfer to see the quoted fees and how long it takes.
- 5
Review the fee quote and destination address, then confirm the transfer.
- 6
Check that the tokens arrived in the destination wallet before sending larger amounts.
Who MultiBit Protocol is for
MultiBit fits holders of BRC20 tokens who want exposure to EVM chains, and users who already understand bridge risk. It is not well suited to newcomers who want clear published fees and custody details, or to anyone moving large sums without independently checking the audits.
MultiBit Protocol FAQs
What is MultiBit Protocol?
MultiBit is a cross-chain bridge focused on interoperability between the Bitcoin chain and other chains. It is described as a dual-sided bridge for transfers between BRC20 and ERC20 tokens.
Which blockchains does MultiBit support?
The project lists Bitcoin, Ethereum, Polygon, BNB Chain and BounceBit as supported networks. The core use case is moving tokens between Bitcoin's BRC20 standard and EVM-compatible chains.
What is the MUBI token?
MUBI is the native token of the protocol. Descriptions of the project say it simplifies the transfer of assets between networks, but the homepage does not set out detailed token utility.
Is MultiBit safe to use?
Two audits are listed for the protocol, but the auditors and findings are not detailed on the homepage. Any bridge carries smart-contract and custody risk, so only move amounts you can afford to lose.
How much does it cost to bridge with MultiBit?
The homepage does not publish a fee schedule. Users would normally see the bridge fee and network gas costs in the bridge interface before confirming a transfer.
How much value is locked in MultiBit?
Total value locked is about $112,000, down about 1% over the past week. That is small for a bridge, so large transfers may face liquidity or counterparty constraints.
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How we checked
Sources
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