ERC-6909
Minimal Multi-Token Interface standard used in Uniswap v4 for gas-efficient token accounting.
ERC-6909 is a Minimal Multi-Token Interface standard that simplifies and optimizes the management of multiple tokens within a single contract. In Uniswap v4, this standard is utilized by the Pool Manager to handle internal accounting of various tokens without the overhead of standard ERC-20 transfers for every operation.
Efficiency in Uniswap v4
By adopting ERC-6909, Uniswap v4 significantly reduces gas costs. Instead of executing separate transfer operations for each token swap or liquidity change, the protocol can update internal balances (represented as claims) within the singleton contract. This is particularly effective when combined with Flash Accounting.
Articles Using This Term
Learn more about ERC-6909 in these articles:
Related Terms
Singleton Architecture
A design pattern where all pools are managed within a single unified contract, reducing gas costs.
Flash Accounting
A gas optimization technique that tracks balance deltas during a transaction and only settles the final net amount.
Pool Manager
The singleton contract in Uniswap v4 that manages all pools, liquidity, and swaps in a unified system.
Need expert guidance on ERC-6909?
Our team at Zealynx has deep expertise in blockchain security and DeFi protocols. Whether you need an audit or consultation, we're here to help.
Get a Quote
