Ethereum Improvement
Proposals (EIPs)

EIPs are proposals to improve Ethereum — from token standards and smart contracts to protocol upgrades, tooling and beyond.

1.2k+

Total EIPs

281+

Final

363+

In Progress

1.4k+

Contributors

Most Popular Standards

The standards that power the Ethereum ecosystem.

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ERC-20

Token Standard

The following standard allows for the implementation of a standard API for tokens within smart contracts. This standard provides basic functionality to transfer tokens, as well as allow tokens to be approved so they can be spent by another

Token Standards

Final

ERC-721

Non-Fungible Token Standard

The following standard allows for the implementation of a standard API for NFTs within smart contracts. This standard provides basic functionality to track and transfer NFTs.

NFT Standards

Final

ERC-1155

Multi Token Standard

This standard outlines a smart contract interface that can represent any number of fungible and non-fungible token types. Existing standards such as ERC-20 require deployment of separate contracts per token type. The ERC-721 standard's toke

Token Standards

Final

ERC-4626

Tokenized Vaults

Tokenized Vaults with a single underlying EIP-20 token.

DeFi Standards

Final

ERC-4337

Account Abstraction Using Alt Mempool

Account abstraction without consensus-layer protocol changes, instead relying on higher-layer infrastructure.

Wallet & Account

Final

ERC-3643

T-REX - Token for Regulated EXchanges

An institutional grade security token contract that provides interfaces for the management and compliant transfer of security tokens.

Others

Final

ERC-2981

NFT Royalty Standard

This standard allows contracts, such as NFTs that support [ERC-721](./eip-721.md) and [ERC-1155](./eip-1155.md) interfaces, to signal a royalty amount to be paid to the NFT creator or rights holder every time the NFT is sold or re-sold. Thi

NFT Standards

Final

ERC-1822

Universal Upgradeable Proxy Standard (UUPS)

The following describes a standard for proxy contracts which is universally compatible with all contracts, and does not create incompatibility between the proxy and business-logic contracts. This is achieved by utilizing a unique storage po

Security & Upgrade

Stagnant

ERC-1967