> ## Documentation Index
> Fetch the complete documentation index at: https://docs.theblockchainlibrary.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ERC-4907: Rental NFT Standard

> ERC-4907 provides a standardized approach to the rental and time-limited usage of non-fungible tokens, addressing a significant limitation in existing NFT funct

# ERC-4907: Rental NFT Standard

ERC-4907 provides a standardized approach to the rental and time-limited usage of non-fungible tokens, addressing a significant limitation in existing NFT funct

## Abstract

ERC-4907 provides a standardized approach to the rental and time-limited usage of non-fungible tokens, addressing a significant limitation in existing NFT functionality. Prior to this standard, lending or renting NFTs required cumbersome and often risky escrow-based methods or complex social trust agreements. ERC-4907 adds an 'expires' functionality to the standard ERC-721, allowing owners to delegate usage rights to a user address for a specified duration, after which the rights automatically expire and return to the owner. This is particularly significant for gaming, ticketing, and service-based NFT use cases where temporary access is more valuable than permanent ownership. The standard is designed to be highly gas-efficient and seamless, promoting interoperability across platforms and gaming environments, thereby unlocking new rental markets and utility for digital assets.

**Authors:** Shuaifeng He, Zhenyu Yan, Douglas Horn, Archer Fu

**Publication:** Ethereum Improvement Proposals

**Publication date:** 2022-01-01

## Key findings

* The standard allows for automated time-limited access without the need for complex escrow mechanisms.
* It enables the creation of secondary rental markets within existing gaming and service platforms.
* Implementation is compatible with legacy ERC-721 assets via extension wrappers.
* The 'expires' variable provides a transparent and verifiable mechanism for managing usage rights on-chain.

## Citation

Shuaifeng He, Zhenyu Yan, Douglas Horn, Archer Fu (2022). ERC-4907: Rental NFT Standard. Ethereum Improvement Proposals. [https://eips.ethereum.org/EIPS/eip-4907](https://eips.ethereum.org/EIPS/eip-4907)

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***

**Canonical knowledge ID:** `research:erc-4907-rental-nft-standard`