Hanko (Passkey Auth) MCP Server for Google ADKGive Google ADK instant access to 15 tools to Admin Create User, Admin Get User, Admin List User Credentials, and more
GDPR Free for SubscribersGoogle Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Hanko (Passkey Auth) as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.
Ask AI about this MCP Server for Google ADK
The Hanko (Passkey Auth) MCP Server for Google ADK is a standout in the Developer Tools category — giving your AI agent 15 tools to work with, ready to go from day one.
Vinkius delivers Streamable HTTP and SSE to any MCP client
Geminifrom google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
StreamableHTTPConnectionParams,
)
# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
connection_params=StreamableHTTPConnectionParams(
url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
)
)
agent = Agent(
model="gemini-2.5-pro",
name="hanko_passkey_auth_agent",
instruction=(
"You help users interact with Hanko (Passkey Auth) "
"using 15 available tools."
),
tools=[mcp_tools],
)
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Hanko (Passkey Auth) MCP Server
Connect your Hanko instance to any AI agent to streamline passkey-based authentication and user management. This server provides a comprehensive interface for WebAuthn flows and administrative user operations.
Google ADK natively supports Hanko (Passkey Auth) as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 15 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.
What you can do
- Passkey Lifecycle — Initialize and finalize WebAuthn registration and login flows for secure, passwordless access.
- Credential Management — List and delete registered WebAuthn credentials for specific users.
- User Administration — Create, retrieve, and list users and their associated credentials via admin tools.
- Transaction Security — Initialize and finalize passkey-signed transactions for sensitive operations like payments.
- Session Validation — Publicly validate sessions and retrieve JWKS for token verification.
The Hanko (Passkey Auth) MCP Server exposes 15 tools through the Vinkius. Connect it to Google ADK in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
All 15 Hanko (Passkey Auth) tools available for Google ADK
When Google ADK connects to Hanko (Passkey Auth) through Vinkius, your AI agent gets direct access to every tool listed below — spanning authentication, passkeys, passwordless, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.
Admin create user on Hanko (Passkey Auth)
Create a new user via Admin API
Admin get user on Hanko (Passkey Auth)
Get a user by ID via Admin API
Admin list user credentials on Hanko (Passkey Auth)
List WebAuthn credentials for a user via Admin API
Admin list users on Hanko (Passkey Auth)
List users via Admin API
Flow execute on Hanko (Passkey Auth)
Execute a Hanko Flow action
Passkey delete credential on Hanko (Passkey Auth)
Delete a WebAuthn credential
Passkey list credentials on Hanko (Passkey Auth)
List WebAuthn credentials for a user
Passkey login finalize on Hanko (Passkey Auth)
Finalize a passkey login
Passkey login init on Hanko (Passkey Auth)
Returns publicKey options for navigator.credentials.get(). Initialize a passkey login
Passkey registration finalize on Hanko (Passkey Auth)
Finalize a passkey registration
Passkey registration init on Hanko (Passkey Auth)
Returns publicKey options for navigator.credentials.create(). Initialize a passkey registration
Passkey transaction finalize on Hanko (Passkey Auth)
Finalize a passkey transaction
Passkey transaction init on Hanko (Passkey Auth)
g., payment confirmation) for an existing user. Initialize a passkey transaction
Public get jwks on Hanko (Passkey Auth)
Get JSON Web Key Set (JWKS)
Public validate session on Hanko (Passkey Auth)
Validate a Hanko session token
Connect Hanko (Passkey Auth) to Google ADK via MCP
Follow these steps to wire Hanko (Passkey Auth) into Google ADK. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.
Install Google ADK
pip install google-adkReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenCreate the agent
Explore tools
Why Use Google ADK with the Hanko (Passkey Auth) MCP Server
Google ADK provides unique advantages when paired with Hanko (Passkey Auth) through the Model Context Protocol.
Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution
Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Hanko (Passkey Auth)
Production-ready features like session management, evaluation, and deployment come built-in. not bolted on
Seamless integration with Google Cloud services means you can combine Hanko (Passkey Auth) tools with BigQuery, Vertex AI, and Cloud Functions
Hanko (Passkey Auth) + Google ADK Use Cases
Practical scenarios where Google ADK combined with the Hanko (Passkey Auth) MCP Server delivers measurable value.
Enterprise data agents: ADK agents query Hanko (Passkey Auth) and cross-reference results with internal databases for comprehensive analysis
Multi-modal workflows: combine Hanko (Passkey Auth) tool responses with Gemini's vision and language capabilities in a single agent
Automated compliance checks: schedule ADK agents to query Hanko (Passkey Auth) regularly and flag policy violations or configuration drift
Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Hanko (Passkey Auth)
Example Prompts for Hanko (Passkey Auth) in Google ADK
Ready-to-use prompts you can give your Google ADK agent to start working with Hanko (Passkey Auth) immediately.
"Initialize a passkey registration for user 'user_789' with username 'alice_dev'."
"List all registered credentials for user ID 'usr_12345'."
"Create a new user in Hanko with the ID 'new_customer_001'."
Troubleshooting Hanko (Passkey Auth) MCP Server with Google ADK
Common issues when connecting Hanko (Passkey Auth) to Google ADK through Vinkius, and how to resolve them.
McpToolset not found
pip install --upgrade google-adkHanko (Passkey Auth) + Google ADK FAQ
Common questions about integrating Hanko (Passkey Auth) MCP Server with Google ADK.
How does Google ADK connect to MCP servers?
Can ADK agents use multiple MCP servers?
Which Gemini models work best with MCP tools?
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