The Chain-Agnostic Token Standard

Nexa is a cross-chain interoperability protocol that makes tokens and NFTs truly chain-agnostic and bridge-agnostic.

We have created a new standard for tokens, Chain-Agnostic Token (CAT), where tokens are native to multiple chains and fungible across EVM and non-EVM chains.

Chain-Agnostic Token contracts are compatible with any bridges (i.e. message passing protocols) such as Axelar, LayerZero, CCIP and Wormhole.

This industry-defining standard enables tokens to exist in a connected manner across all blockchains, and allows for:

  • No funds escrowed in bridging contracts

  • No vendor lock-in to message passing protocols.

Key features include:

  • Token contracts are owned by the token-issuer

  • Flexibility to add new blockchains at any time

  • Maximum compatibility with message passing protocols to guard against having a single point of failure

  • Effortless cross-chain transfers using a burn & mint mechanism for new tokens, and using lock & mint in a proxy contract for existing tokens

  • The same token address on all EVM chains

The Chain-Agnostic Token (CAT) standard can be applied to:

  • New tokens

  • Existing tokens

  • New NFT collections

  • Existing NFT collections

Our contracts are fully non-custodial, which means that Nexa never takes custody of project tokens, NFTs or end-user funds.

Our core products support the creation, transfer and distribution of Chain-Agnostic Tokens.

  1. CAT Deployment: An interface that allows for tokens and NFTs to be deployed as Chain-Agnostic Tokens (CATs) in minutes.

  2. CAT Bridge: A bridge to transfer Chain-Agnostic Tokens (CATs) between chains, using multiple message passing protocols as the underlying infrastructure.

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