Passkey Hash

Generate passkey hashes for passkey-based operations.

Endpoint

POST /passkeyHash

Description

Generates passkey hashes that need to be signed by passkeys. The signed hash can then be used with the execute passkey endpoint.

Request Body

Same as Execute Operation endpoint.

Response

{
  "status": 0,
  "results": [
    {
      "userOpHash": "0x...",
      "encodedUserOp": "0x...",
      "aggrIndexes": [0, 1],
      "error": null
    }
  ]
}

Response Fields

• status (integer): The status code (0 - success)
• results (array): Array of passkey hash results
  • userOpHash (string): The UserOperation hash to sign
  • encodedUserOp (string): The encoded UserOperation
  • aggrIndexes (array): Aggregator indexes for signature aggregation
  • error (string, nullable): Error message if hash generation failed

Use Cases

• Passkey integration: Generate hashes for passkey-based transaction signing
• Biometric authentication: Enable passwordless transaction signing
• Mobile wallets: Support device-native biometric authentication
• Enhanced security: Combine passkey validation with Account Abstraction

Best Practices

1. Sign with passkey: Use the userOpHash to sign with the user's passkey
2. Handle aggregation: Use aggrIndexes for signature aggregation if needed
3. Validate before execution: Ensure passkey signature is valid before execute passkey
4. Error handling: Check for errors in the results array

Related Endpoints

• Execute Passkey - Execute operations with passkey signatures