Balancer
Automated market maker with customizable, multi-token liquidity pools for swaps and yield.
Overview
Balancer is a decentralized automated market maker (AMM) and DEX built around customizable liquidity pools. Unlike constant-product AMMs limited to two assets at equal weight, Balancer lets anyone create pools with multiple tokens and custom weightings, which makes it useful for swaps, index-like portfolios, and flexible liquidity provision.
Its smart-order routing splits trades across pools for efficient pricing and low slippage, and liquidity providers earn a share of swap fees plus any available incentives. The protocol is governed by BAL token holders through the Balancer DAO.
Balancer is deployed across Ethereum and major networks including Arbitrum, Base, Optimism, Polygon, and Gnosis, giving developers and traders access to the same pool infrastructure across chains.
The Problem
Most automated market makers lock liquidity into fixed two-asset, equal-weight pools, which limits how teams can structure liquidity, build index-like exposure, or manage multi-asset strategies onchain.
The Solution
Key Features
Customizable weighted pools
Create pools with multiple tokens and custom weightings, beyond the standard 50/50 pair.
Low-slippage smart routing
Smart-order routing splits trades across pools for efficient pricing and minimal price impact.
Fees and incentives for LPs
Liquidity providers earn a share of swap fees plus any available incentives.
Key Strengths
How Developers Use Balancer
Custom liquidity pools
Launch multi-token pools with custom weightings tailored to a strategy or index.
Token swaps
Swap ERC-20 tokens with routing across Balancer pools for better pricing.
Earn as a liquidity provider
Provide liquidity to Balancer pools to earn swap fees and incentives.
Works Well With
Ethereum
Arbitrum One
Avalanche
Base
Gnosis
Polygon PoS
Polygon zkEVM
Optimism
Mode
Fraxtal
Ship faster than your competition
Free RPC across 77+ chains. Spin up an endpoint in under 30 seconds.
Compare
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Resources
Balancer provides developer documentation, an active GitHub organization, and community channels to help teams integrate its pools, swaps, and SDK.