API reference

Passkeys

• createPasskeyWithPrfOutput: creates a passkey and returns its deterministic PRF output in one call.
• getPasskeyPrfOutput: requests a passkey PRF evaluation and returns the deterministic output.
• WebAuthnClient: connects mera’s passkey functions to the platform’s WebAuthn API.

Key derivation

• deriveEvmPrivateKey: derives the private key of an EVM account from a PRF output.
• deriveSolanaPrivateKey: derives the private key of a Solana account from a PRF output.

Signing sessions

• createSecp256k1SigningSession: creates a signing session from a secp256k1 private key.
• Secp256k1SigningSession: the returned session.
• createEd25519SigningSession: creates a signing session from an Ed25519 private key.
• Ed25519SigningSession: the returned session.
• toViemAccount: adapts a secp256k1 signing session into a viem local account.

wagmi

• mera: a wagmi connector for passkey accounts.

Secret vault

• createSecretVaultWithNewPasskey: creates a passkey and encrypts one secret with a fresh random salt.
• createSecretVaultWithExistingPasskey: encrypts another secret with an existing passkey and a fresh random salt.
• decryptSecretVaultWithPasskey: performs the passkey assertion and decrypts a vault.
• parseSecretVault: parses and validates untrusted vault JSON or objects.
• Secret vault format: the v1 storage contract, field by field.

Addresses

• getEvmAddress: derives the EIP-55 checksummed EVM address for a secp256k1 public key.
• getSolanaAddress: derives the base58-encoded Solana address for an Ed25519 public key.

Errors

• Errors: every error the library throws and its stable code.