Wallet Integration

Wallet integration is an essential aspect of dApp development that allows users to securely interact with blockchain-based applications.

EVM Wallet Compatibility

Any standard EVM wallet works out of the box with Cosmos EVM chains. This includes popular wallets like MetaMask, Rabby, WalletConnect, and any other wallet that supports Ethereum and EVM-compatible chains. No special configuration or custom integration is required - simply add your chain's RPC endpoint and chain ID to any EVM wallet.

Key Integration Points

• Standard EVM RPC: Cosmos EVM exposes the standard Ethereum JSON-RPC API, ensuring compatibility with all EVM wallets
• EIP-1559 Support: Full support for EIP-1559 dynamic fee transactions, enabling automatic gas estimation
• Address Format: Uses standard Ethereum addresses (0x format) for EVM transactions
• Transaction Types: Supports all standard Ethereum transaction types including legacy and EIP-1559 transactions

Wallet Support

Wallet	Type	Notes
MetaMask	EVM	Works out of the box - just add network RPC
Rabby	EVM	Works out of the box - just add network RPC
WalletConnect	EVM	Standard WalletConnect integration works
Keplr	Cosmos + EVM	Supports both Cosmos and Ethereum transaction formats
Leap	Cosmos + EVM	Supports both Cosmos and Ethereum transaction formats
Ledger	Hardware	Compatible via MetaMask or other wallet interfaces

Client Libraries

For programmatic wallet integration, check out our Client Integrations which provide TypeScript and Python libraries for interacting with Cosmos EVM chains.

Quick Start

To add a Cosmos EVM chain to MetaMask or any EVM wallet:

1. Open your wallet and navigate to "Add Network"
2. Enter the following details:
   • Network Name: Your chain name
   • RPC URL: Your chain's JSON-RPC endpoint (port 8545)
   • Chain ID: Your EVM chain ID (integer)
   • Currency Symbol: Your native token symbol
   • Block Explorer URL: (optional) Your chain's block explorer

That's it! Your wallet is now ready to interact with the Cosmos EVM chain.