How to Use the Corbado MCP in Google ADK

Q: Can Gemini trigger Corbado passkey logins via Google ADK?

Yes, your agent uses initlogin followed by startpasskeylogin to initiate a passwordless session. It then processes the WebAuthn assertion using finishpasskeylogin.

Q: How do Corbado and Google ADK manage active user sessions?

The agent queries active sessions using listsessions to check for suspicious activity. If it detects an anomaly, it calls revokesession to terminate the user's access instantly.

Q: How does the agent handle SSO connections?

Your agent starts the SAML2 handshake with startsso and completes it using finishsso. This allows enterprise users to log in through their existing identity providers.

Connect Gemini agents to Corbado passkey auth and manage enterprise user directories directly from Google ADK via MCP.

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Connect Corbado MCP to Google ADK

Create your Vinkius account to connect Corbado to Google ADK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Corbado with Google ADK

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Enterprise user provisioning from Google ADK

The Corbado MCP Server exposes `create_user` and `list_users` to your Gemini-powered enterprise workflows. Your agent queries active users, matches them against BigQuery tables, and provisions accounts automatically. Large-context models analyze huge lists returned by `list_users` without hitting token limits. The agent flags inactive accounts and calls `delete_user` to keep your directory clean.

Passkey onboarding for cloud platforms

This server lets your Google ADK agent manage WebAuthn registration flows using `init_signup` and `start_passkey_append`. You build secure, passwordless onboarding paths directly inside your cloud-based agent logic. The agent coordinates with Corbado to generate challenges. It monitors the registration process and calls `finish_passkey_append` to finalize the device binding.

Multi-tenant identifier administration

Your agent manages complex user identifiers across multiple environments using `list_identifiers` and `update_identifier`. This keeps your identity provider aligned with your primary database. When a tenant updates their email, the agent triggers `update_auth_identifier` to change the primary login key. It then verifies the change by calling `get_user` to confirm the update.

Setup guide

Set up Corbado MCP in Google ADK

Prerequisites

Python 3.10+ installed
google-adk package (pip install google-adk)
Active Vinkius subscription with a valid endpoint token

1

Install Google ADK

Run pip install google-adk to install the Agent Development Kit. MCP support is included via the McpToolset class.
2

Connect via SSE transport

Use McpToolset.from_server() with SseServerParams pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create an LlmAgent

Pass the returned mcp_tools list directly to LlmAgent(tools=mcp_tools). The ADK maps each MCP tool to a native Gemini function call — no manual schema definitions required.
4

Run with any Gemini model

The agent works with any Gemini model (gemini-2.0-flash, gemini-2.5-pro, etc.). Copy the full example on the right to get started with Corbado tools in your ADK agent.

agent.py

from google.adk.agents import LlmAgent
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import SseServerParams

# Connect to the MCP via SSE
mcp_tools, exit_stack = await McpToolset.from_server(
    connection_params=SseServerParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    )
)

# Create your agent with auto-discovered tools
agent = LlmAgent(
    name="Corbado_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Corbado tools via MCP.",
    tools=mcp_tools,
)

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Corbado. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Corbado MCP in Google ADK

Instantiate the toolset using the streamable HTTP server parameters in your Python code. Pass the toolset object to your agent to expose all 43 identity management MCP tools.

Yes, your agent uses `init_login` followed by `start_passkey_login` to initiate a passwordless session. It then processes the WebAuthn assertion using `finish_passkey_login`.

The agent queries active sessions using `list_sessions` to check for suspicious activity. If it detects an anomaly, it calls `revoke_session` to terminate the user's access instantly.

Your agent starts the SAML2 handshake with `start_sso` and completes it using `finish_sso`. This allows enterprise users to log in through their existing identity providers.

Yes, all passkey credentials and session tokens are processed in a zero-trust, ephemeral MCP environment. Your actual cryptographic keys remain securely stored on the user's device and Corbado's servers, never exposed to the agent.

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