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Tier 2 chains provide embedded wallet support via raw signing with helper methods and EOA support. Gas handling and policies are not yet supported. Because many chains share the same elliptic curves — secp256k1 (EVM) and Ed25519 (Solana) — a single Dynamic embedded wallet can sign transactions across all of them without creating new wallets or asking users to authenticate again.

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How it works

  1. Create an EVM and Solana embedded wallet for the user using Dynamic
  2. Extract the public key from the appropriate root wallet
  3. Apply chain-specific hashing and encoding to derive the chain address
  4. Use Dynamic’s raw signing to sign chain-native transactions
No additional keys or wallets are created. The user authenticates once with Dynamic and gets access to all derived chains.

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User Management

Tier 2 chains are not natively supported in Dynamic’s UI or session model. You are responsible for managing the user-facing experience: displaying derived addresses, associating them with your user records, and handling any chain-specific account state yourself.

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Key Security Warning

Exporting the root wallet key exposes all derived addresses. The EVM and Solana embedded wallet private keys are the cryptographic root of every Tier 2 address derived from them. If you export the EVM or Solana private key, anyone with that key can independently derive and control all associated Tier 2 addresses across every chain. Never expose root wallet keys unless you have explicitly designed for that use case.

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Supported Tier 2 Chains

ChainCurveRoot WalletImplementation
AptosEd25519SolanaSHA3-256(pubkey ∥ 0x00)
AlgorandEd25519Solanabase32-encoded pubkey
Cosmossecp256k1EVMbech32(RIPEMD-160(SHA-256(pubkey)))
Tronsecp256k1EVMbase58check(0x41 ∥ evmAddress)
SparkBIP-340Bitcoin—

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Bitcoin Signing

Bitcoin is a Tier 1 chain with full embedded wallet support. The Bitcoin embedded wallet uses BIP-340 (Schnorr/Taproot) signing via the FROST protocol — the same underlying approach as EVM (ECDSA) and Solana (EdDSA) embedded wallets. Using the Bitcoin embedded wallet as a signing root for other BIP-340-compatible chains works the same way as the EVM and Solana Tier 2 patterns, but documentation is not yet published. BIP-340-based chains without published guides are Tier 3 for now. Reach out if you need guidance.

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Extending to other chains

Any chain that uses secp256k1 or Ed25519 can be supported using the same pattern — derive the address from the matching root wallet and sign using Dynamic’s raw signing. If a chain uses a different curve or encoding, see chains with Tier 3 support or reach out to discuss native SDK support.

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Get started

Then navigate to the specific chain page for complete implementation details.