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What is ERC721-C?

Leveraging ERC721-C for enforceable NFT royalties.

Updated over a month ago

In this guide, we'll delve into the intricacies of ERC721-C (and ERC-1155C), exploring its features, importance, and how you can get started using it.

Understanding ERC721-C

ERC721-C (and the similar contract ERC-1155C) is a standardized protocol that empowers creators to enforce royalties on their NFTs. Unlike previous standards, ERC721-C provides a robust mechanism for creators to receive fair compensation whenever their digital assets are traded.

Key features of ERC721-C

  • Transfer security policies: ERC721-C allows creators to define transfer security policies, giving them control over how their NFTs are transferred between wallets and platforms.

  • Programmable royalties: With ERC721-C, creators can implement dynamic royalty-sharing systems that distribute revenue to multiple stakeholders, including creators, communities, partners, and affiliates.

Why ERC721-C matters

Before ERC721-C, implementing royalties for NFTs was challenging and often led to inconsistencies and abuse. By introducing a standardized and enforceable mechanism, ERC721-C promotes fairness, transparency, and sustainability in the NFT ecosystem.

How ERC721-C works

ERC721-C operates by incorporating transfer security policies into NFT smart contracts. These policies include predefined security levels, operator whitelists, and contract receivers allowlists, providing creators with granular control over token transfers.

Getting started with ERC721-C

If you're interested in using ERC721-C for your NFT projects, here's a step-by-step guide:

  • Educate yourself: Familiarize yourself with ERC721-C and its key features to understand how it can benefit your projects.

  • Customize policies: Tailor the transfer security policies to meet your specific requirements, considering factors like distribution platforms and royalty-sharing mechanisms.

  • Deploy your collection: Utilize ERC721-C smart contracts to deploy your NFT collection, ensuring that it aligns with your desired policies and configurations.

  • Monitor and manage royalties: Use the provided tools and interfaces to monitor and manage royalties.


ERC721-C represents a significant advancement in the world of NFTs, offering creators a reliable and enforceable solution for royalty management.

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