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How Auto's Wallet Works

Auto creates a secure embedded wallet for every user at sign-in. The Auto wallet is a non-custodial, multi-chain crypto wallet powered by Privy that requires no seed phrases, browser extensions, or hardware wallets.

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What kind of wallet does Auto use?

The Auto wallet is a Privy embedded wallet with server-side signing. This architecture provides three properties:

  • One wallet, all chains. A single Auto wallet works on Ethereum, Base, Arbitrum, Optimism, Polygon, Solana, and HyperEVM — 7 chains total.

  • Gas-sponsored transactions. Most transactions on EVM chains and Solana are gas-sponsored, so you do not need to hold ETH, POL, or SOL to pay fees.

  • Non-custodial key management. Private keys are managed by Privy's secure infrastructure. Auto never stores or accesses your private keys directly.

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How do I view my Auto wallet address and balances?

Ask Auto directly to see your wallet address or balances across any chain:

"What's my wallet address?"

"Show my balances on all chains"

"How much USDC do I have on Base?"

Auto returns balances across all 7 chains at once, or you can query specific tokens on specific chains.

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How do I fund my Auto wallet?

You need crypto in your Auto wallet before you can trade. There are two ways to fund it:

  1. Send from an external wallet — Copy your Auto wallet address and send tokens from any wallet (MetaMask, Coinbase Wallet, Phantom, etc.).

  2. Bridge from another chain — If you already have funds on one chain, Auto bridges them to another chain for you.

Most users start with USDC on Base because Base has the lowest transaction fees of any supported EVM chain.

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Which transactions does Auto sponsor gas for?

Auto sponsors gas for most wallet operations. The only exception is HyperEVM, which requires HYPE tokens for gas.

Operation
Gas sponsored?

Swaps (all EVM chains)

Yes

Transfers

Yes

Bridges

Yes

NFT transfers

Yes

Solana transactions

Yes

HyperEVM transactions

No — requires HYPE for gas

If a transaction fails, it is almost never a gas issue. Auto reports the specific error when something goes wrong.

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How secure is the Auto wallet?

The Auto wallet uses Privy's non-custodial infrastructure with four layers of protection:

  • Non-custodial architecture — Privy manages keys in isolated secure enclaves. Auto does not store private keys on its servers.

  • Intent-based execution — Every transaction requires explicit user intent through the chat interface. Auto does not execute trades without your instruction.

  • Large transaction safeguards — Transactions exceeding 50% of your balance trigger a confirmation step before execution.

  • No raw key exposure — You never see or handle raw private keys, which eliminates phishing and clipboard-attack vectors.

PreviousQuick Start GuideNextSupported Chains and Networks

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