Symbiosis Finance

Symbiosis Finance is a decentralized, cross-chain automated market maker (AMM) that enables users to swap any token across 51 blockchain networks in a single transaction. Where most decentralized exchanges operate within a single chain, Symbiosis pools liquidity from both EVM and non-EVM networks including Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain, Base, zkSync Era, Linea, Scroll, Solana, Bitcoin, TON, Tron, and Near, allowing traders to move assets across ecosystems without relying on centralized bridges, wrapped token intermediaries, or multiple manual steps.

The Problem

Blockchain liquidity is deeply fragmented. A user holding a token on one chain who wants an asset on another must typically navigate separate bridge protocols, accept wrapped token risk, pay fees on multiple platforms, and manage several transactions manually. This complexity creates friction that concentrates user activity on individual chains and limits the composability of multi-chain DeFi. Symbiosis addresses this by abstracting cross-chain routing into a single interaction.

How It Works

Symbiosis combines on-chain smart contracts with an off-chain Relayers Network to execute cross-chain swaps in a coordinated flow.

Route calculation: When a user initiates a swap, the protocol evaluates possible paths using one of three transit tokens (USDC, WETH, or WBTC) and selects the most efficient route.

Source chain swap: If the user input token differs from the transit token, DEX aggregators (including 1inch on EVM chains) first convert it to the transit token on the source network.

Cross-chain transfer via Octopool: Transit tokens are moved through Symbiosis Octopools, AMM liquidity pools on the Symbiosis host chain that hold synthetic token representations called sTokens (sUSDC, sWETH, sWBTC). These pools implement Uniswap-like and Curve-like models and serve as the liquidity reservoir connecting chains. sTokens represent value on the host chain and are minted or burned as assets cross network boundaries.

Destination chain swap: On arrival at the destination, DEX aggregators again convert the transit token to the desired output token.

Depository and Solver mechanism: To reduce failed swaps, a Depository Contract locks transit tokens on destination chains under specific release conditions. A permissionless Solver service monitors these lock events and executes the optimal exchange. Locks release immediately if minimum output is exceeded, with a delay if the minimum is exactly met, or as transit tokens if the swap is impossible, giving users a recoverable fallback rather than a stuck transaction.

The off-chain Relayers Network operates as a peer-to-peer system that validates and signs cross-chain instructions using Multi-Party Computation (MPC) keys. The MPC group requires a two-thirds signature threshold to execute, providing resistance to individual node compromise. The relayer network currently operates under a Proof of Authority model with up to 100 nodes, with a planned transition to Proof of Stake. An Advisor microservice fetches real-time gas prices and verifies gas sufficiency before transactions execute.

Solana Integration

Symbiosis supports cross-chain token swaps to and from Solana. Users can exchange tokens from any supported chain to SOL or USDC on Solana, with routing utilizing the Chainflip bridge on Arbitrum One. This means Solana users can access liquidity from the full Symbiosis network, and users on other chains can access Solana-based assets, without leaving the Symbiosis interface.

Key Features

Swap: Cross-chain exchange from any supported token on any supported chain to any supported token on any other chain, with routing handled automatically.

Zap: Users can move liquidity into third-party DeFi protocols across chains in a single transaction, enabling one-click cross-chain yield deployment.

Pools: Liquidity providers can deposit assets into Octopools via cross-chain zapping and receive sTokens confirming their deposit. Providers earn fees from swap volume flowing through their pool plus farming incentives.

Staking and Governance: SIS token holders can lock tokens to receive veSIS, which grants governance voting power and boosted liquidity provision APRs. The conversion rate depends on lock duration: locking 1 SIS for four years yields 1.00 veSIS, with proportionally less for shorter periods. Governance proposals require a minimum of 2,000 veSIS to submit.

SIS Token

SIS is the native governance and utility token of the Symbiosis protocol, issued as an ERC-20 token with a total supply of 100 million. It is available on Ethereum, BNB Chain, Arbitrum One, zkSync Era, Linea, and Scroll. SIS serves as the native gas token on Symbiosis Chain, as a staking asset for veSIS governance power, and as an incentive mechanism for liquidity provision and relay network participation. Relayers are required to stake SIS tokens to participate in the network.

Security and Audits

Each component of the Symbiosis protocol has been audited by firms specializing in the relevant technology. The full collection of security audits is published on the project GitHub repository at github.com/symbiosis-finance/audits. Audited components include the web application, core smart contracts, BTC bridge contracts, TON bridge contracts, Octopools, and the Relayers Network. Independent coverage identifies auditors including SlowMist, Omniscia, and Zokyo. The relayer network MPC design requires two-thirds of participating nodes to collude in order for funds to be at risk; the protocol documentation acknowledges this as a residual trust assumption and cites the planned transition to a more open validator set as a mitigation path.

Team and Background

Development of Symbiosis began in January 2021. The project raised $2 million in October 2021 from Blockchain.com Ventures, Primitive Ventures, and the Avalanche ecosystem fund, with Binance investing through its venture arm in February 2022. The beta mainnet launched in March 2022.

The core team includes CEO Will Kamalov, Co-founder and CMO Nick Avramov, and CTO Alexey Lushnikov. The team numbers approximately 30 people, with 22 developers. Core protocol contributors include alumni of Zerion and other DeFi projects. The security team is led by a former team lead at Yandex and Rakuten; the head of relayer network development previously led open-source projects at IBM Russian division.

Ecosystem Activity

As of mid-2026, Symbiosis has processed more than 4.6 million transactions historically, with $7.1 billion in total swap volume and over 780,000 unique wallets connected. The protocol has continued expanding its integration surface, including adding Bitget Wallet swap API as a liquidity source in July 2026 and integrating with the Lighter.xyz perpetuals protocol to enable single-step cross-chain deposits from any supported chain including Solana directly into the trading platform.