Allbridge

Allbridge is a cross-chain bridge that moves stablecoins and other assets between Solana, Tron, Ethereum and other EVM and non-EVM networks, so users receive the native asset on the destination chain instead of a wrapped copy. It began on Solana in 2021 and now runs two live products, Allbridge Core and Allbridge Next. Its older product, Allbridge Classic, is being shut down.

Background

According to LI.FI's deep dive, Allbridge launched in July 2021 as Solbridge, a bridge built to connect Solana to other chains. It took the Allbridge name as it added more networks. TechUkraine describes Allbridge as a Ukrainian project founded by Andriy Velykyy in summer 2021 and reported in January 2022 that it had raised $2 million from Race Capital and Chris McCann.

Allbridge Core, the stablecoin product, followed in June 2022.

Products

Allbridge Core

Allbridge Core is the stablecoin bridge. Per the Core documentation, it moves three dollar-pegged assets, USDC, USDT and USDe, and delivers "the canonical stablecoin on each chain." Supported networks include Ethereum, Polygon, Avalanche, Arbitrum, Base, Optimism, Unichain, Tron, Solana, Sui and Stacks. Stellar support is listed as temporarily unavailable.

Core was originally built on liquidity pools. It held a pool of each stablecoin on every supported chain, and liquidity providers earned fees from them. After a July 2026 exploit (see Security below), the docs say "Allbridge Core liquidity pools were discontinued in July 2026." Core now sends transfers through the stablecoin issuers' own cross-chain standards. Allbridge describes each transfer as three steps: a transaction on the source chain, a cross-chain message that proves it, and a transaction on the destination chain. The messaging protocols page lists the mechanisms it uses:

• CCTP / CCTP V2: [[PROJECT:600]]'s burn-and-mint protocol for USDC ([[TOKEN:EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v]])
• xReserve: Circle's attestation for stablecoins backed by USDC
• OFT: [[PROJECT:701]]'s Omnichain Fungible Token standard for USDT ([[TOKEN:Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB]]) and USDe

Earlier routes that used Allbridge's own messaging and Wormhole were deprecated along with the pools. In a July 29, 2026 post, the team explained that CCTP and OFT burn tokens on the source chain and mint them on the destination. That means no pool balance to maintain, and CCTP transfers have no slippage at any size.

Fees. The fee documentation lists a flat 0.1% service fee plus a relayer fee that covers execution on the destination chain and rises with that chain's gas costs. With no pools, there is no liquidity-provider fee and no price impact. Users can pay fees in the source chain's gas token, take them out of the stablecoins being sent, or pay in the ABR0 token for a discount on the relayer fee. An optional gas top-up delivers some of the destination chain's native token so a new wallet can transact right away.

Tron corridor. Much of Core's traffic runs between Tron USDT and other chains. On September 11, 2026, Allbridge reported $1.64 billion in stablecoins moved through Core on Tron across 79,774 transfers. KuCoin News repeated the figure.

Allbridge Next

Allbridge Next is the team's general-purpose bridge. It handles stablecoins and network gas tokens and can swap assets during a transfer. Examples in the team's posts include SOL on Solana to ETH on Arbitrum, XLM on Stellar to USDC on Arbitrum, and USDT on Polygon to BNB Chain. Next also has a gas feature for turning stablecoins or network tokens into the native gas token of the destination chain. In 2026 the team announced a TON integration and support for Circle's euro stablecoin EURC. The Allbridge homepage says Next fees are typically 0.1%. Next runs an ambassador referral program; its second wave ended on September 1, 2026, with 3,181 referred transfers worth $689,964, according to Allbridge.

Allbridge Classic (being discontinued)

Allbridge Classic was the original bridge. It used a lock-and-mint design run by validators, carried both native and wrapped tokens, and connected more chains than Core. Its fees could be lowered by staking the ABR token. The Classic docs now say: "Allbridge Classic is deprecated and will be stopped in November 2026." Classic's code was audited by Hacken, Kudelski Security, Cossack Labs and CoinFabric.

Security history

Allbridge has been exploited twice, and both attacks targeted its pool-based stablecoin swaps.

• April 2023, BNB Chain. An attacker used a flash loan and a logic flaw in the pool withdrawal function to take about $570,000 from USDT and BUSD pools. Cointelegraph reported that about 1,500 BNB was returned. Allbridge let the attacker keep the rest as a white-hat bounty.
• July 2026, Solana. On July 19, 2026, an attacker borrowed about 1.12 million USDC in a flash loan from Kamino. They then made repeated swaps to skew the USDC/USDT pool ratio on Solana and withdrew at the distorted price. The Block and NFT Evening put the loss at about $1.65 million (roughly 1,118,239 USDC and 538,692 USDT). The funds were bridged to Ethereum and sent through privacy tools. Allbridge paused Core, said user wallets were not compromised and the damage was limited to the two affected pools, and committed to rebuilding Core without liquidity pools. TechTimes noted that after the 2023 attack, Allbridge had promised one liquidity pool per blockchain, yet the exploited Solana deployment held USDC and USDT together.

For liquidity providers left with funds in the pools, Allbridge opened a compensation program. It announced on September 18, 2026 that registered and verified LPs could claim the Allbridge Recovery Token (ABX) on Ethereum, at 1 ABX per $1 of unwithdrawn liquidity. ABX trades on Uniswap with a target price of $1, which Allbridge says it will support through buybacks funded by protocol revenue and recovered funds. The market price can still move.

Allbridge's site lists third-party audits by Kudelski Security, Quarkslab (Core's Soroban/Stellar implementation) and Blaize Security (Sui bridge). In the current design, the tokens themselves move through the CCTP, xReserve and OFT contracts, and Allbridge describes the service as non-custodial.

Role in the Solana ecosystem

Allbridge started as a Solana bridge and still includes Solana in both live products. Core moves native USDC and USDT between Solana and Tron, Ethereum and the other supported chains. Next adds routes for SOL and other gas tokens. The Solana program registered for the project is BrdgN2RPzEMWF96ZbnnJaUtQDQx7VRXYaHHbYCBvceWB. The July 2026 exploit happened on Solana. Since then, Core has stopped using its own liquidity and hands the movement of funds to Circle's and LayerZero's standards.