- Multichain (@metamask/connect-multichain) – if your dapp needs to connect to both EVM and Solana in a single session with one approval prompt.
- Single-ecosystem (@metamask/connect-evm or @metamask/connect-solana) – if your dapp targets one chain and you want a drop-in provider compatible with existing libraries.
- Multi-ecosystem (both single-ecosystem packages) – if you want per-chain providers for both EVM and Solana.
- [Compare all options]( MetaMask Connect Integration Options - Multichain, EVM, and Solana | MetaMask developer documentation )