Moralis

Auth API allows your user to authenticate and verify signed messages with their web3 wallets when using your dapp. Built accordingly to the <a href="https://eips.ethereum.org/EIPS/eip-4361" rel="nofollow noopener noreferrer" target="_blank">EIP-4361</a> standard, enables your user to do off-chain authentication with their EVM or Solana-compatible wallets to establish user sessions with your dapp.

The Auth API provides out-of-the-box all the necessary APIs you need to authenticate your user wallet to your dapp, which includes:

Requesting challenge message for wallet signature on both <a href="https://docs.moralis.io/authentication-api/evm/reference/request-challenge-evm" rel="nofollow noopener noreferrer" target="_blank">EVM</a> and <a href="https://docs.moralis.io/authentication-api/solana/reference/request-challenge-solana" rel="nofollow noopener noreferrer" target="_blank">Solana</a>

Verifying signed challenge message signature on both <a href="https://swagger.moralis.io/auth/#/Challenge/verifyChallengeEvm" rel="nofollow noopener noreferrer" target="_blank">EVM</a> and <a href="https://swagger.moralis.io/auth/#/Challenge/verifyChallengeSolana" rel="nofollow noopener noreferrer" target="_blank">Solana</a>

- Requesting challenge message for wallet signature on both <a href="https://docs.moralis.io/authentication-api/evm/reference/request-challenge-evm" rel="nofollow noopener noreferrer" target="_blank">EVM</a> and <a href="https://docs.moralis.io/authentication-api/solana/reference/request-challenge-solana" rel="nofollow noopener noreferrer" target="_blank">Solana</a>
- Verifying signed challenge message signature on both <a href="https://swagger.moralis.io/auth/#/Challenge/verifyChallengeEvm" rel="nofollow noopener noreferrer" target="_blank">EVM</a> and <a href="https://swagger.moralis.io/auth/#/Challenge/verifyChallengeSolana" rel="nofollow noopener noreferrer" target="_blank">Solana</a>

The Auth API currently does not support <a href="https://eips.ethereum.org/EIPS/eip-1271" rel="nofollow noopener noreferrer" target="_blank">EIP-1271</a> signature. Therefore, authentication using the Auth API with smart contract wallet is impossible.

The use cases for our Auth API are truly endless! Some popular use cases include:

<a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-metamask" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Metamask</a>

<a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-walletconnect" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with WalletConnect</a>

<a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-rainbowkit" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with RainbowKit</a>

<a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-coinbase-wallet" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Coinbase Wallet</a>

<a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-web3authio" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Web3Auth</a>

<a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-magiclink" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Magic.Link</a>

<a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-particle" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Particle Network</a>

- <a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-metamask" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Metamask</a>
- <a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-walletconnect" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with WalletConnect</a>
- <a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-rainbowkit" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with RainbowKit</a>
- <a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-coinbase-wallet" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Coinbase Wallet</a>
- <a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-web3authio" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Web3Auth</a>
- <a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-magiclink" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Magic.Link</a>
- <a href="https://docs.moralis.io/authentication-api/evm/how-to-sign-in-with-particle" rel="nofollow noopener noreferrer" target="_blank">How to Authenticate Users with Particle Network</a>

What is the Auth API?

Auth API Features

How Does it Work?

Popular use cases