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Passport provides non-custodial wallets without seed phrases. This page explains how it works and compares it to other wallet solutions.

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Smart Contract Wallet

Each Passport user has a smart contract wallet deployed on Immutable Chain. This enables:
Immutable sponsors gas for approved operations. Players never need to buy IMX just to play.
Whitelisted game contracts can execute instantly without confirmation popups—critical for real-time gameplay.
Lost your device? Log in with the same social account to regain access. No seed phrase needed.
Rate limiting, spending limits, and fraud detection protect users from malicious actors.
Wallet addresses are defined at account creation through CREATE-2 counterfactual deployment, with the actual contract deployed when the user performs their first transaction.

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Contract Source Code

Passport’s wallet contracts are open source:

Wallet Contracts

View the smart contracts powering Passport wallets

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Audits

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How Passport Works

Passport wallets are controlled by a 2-of-2 multisig. Every transaction requires signatures from two separate keys:
Immutable never has access to the User Key. All transactions must be signed directly on the user’s device—we cannot move funds without user action.

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Key Generation Flow

When a user authenticates with Passport:
  1. User logs in via Immutable’s OAuth flows (Google, Apple, email, etc.)
  2. Magic’s infrastructure securely generates and stores the User Key
  3. The User Key is downloaded to the user’s device for signing transactions
  4. Immutable’s Guardian Key co-signs to enforce security policies

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Security Guarantees

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Comparing Wallet Solutions

Passport combines the best aspects of traditional and embedded wallets:

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The Problem with Traditional Embedded Wallets

Services like Privy and standalone Magic create a new wallet for each application. This fragments users across many addresses:
  • Scattered assets: NFTs and tokens split across wallets
  • No unified identity: Can’t build cross-game reputation
  • Portfolio confusion: Users don’t know where their assets are

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Passport’s Approach

Passport solves this by providing one wallet that works across all Immutable games and apps:
  • Same address everywhere on Immutable
  • Assets visible in any Passport-enabled app
  • Build reputation and history across the ecosystem
  • Still get the low-friction embedded wallet experience
Best of both worlds: Passport delivers the seamless UX of embedded wallets with the unified identity of traditional wallets like MetaMask.

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Supported Chains

Do not send funds to your Passport address on unsupported chains.If you have sent funds on Ethereum mainnet, you can use the wallet functionality on Immutable Play to eject those funds to Immutable Chain.If you have sent funds to your Passport address on any other chain, your funds will be stuck indefinitely. Please raise a ticket with Player Support, but this will not be able to be resolved until Passport supports all EVM chains.

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Next Steps

Authentication

Implement login flows

Wallet Operations

Send transactions and sign messages