How to Use the Hanko (Passkey Auth) MCP in Claude

Q: How do I setup Hanko (Passkey Auth) in Claude Desktop?

Open your config file at /Library/Application Support/Claude/claudedesktopconfig.json. Add the server under the mcpServers key, restart the app, and you are ready to go.

Manage your auth flow directly in Claude Desktop. Handle passkeys, validate sessions, and manage user identity with this MCP Server.

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Connect Hanko (Passkey Auth) MCP to Claude Desktop

Create your Vinkius account to connect Hanko (Passkey Auth) to Claude Desktop 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 Hanko (Passkey Auth) with Claude Desktop

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Initialize secure passkey registration

Trigger the `passkey_registration_init` tool to generate public key options for your users. This starts the WebAuthn process without requiring a single password. Once the browser handles the ceremony, use `passkey_registration_finalize` to complete the entry. It keeps your identity logic inside the chat interface.

Validate user sessions for Claude Desktop

Call `public_validate_session` to verify active tokens before performing administrative tasks. It provides immediate confirmation that the user is who they claim to be. Use `public_get_jwks` to fetch your keys for local validation. This keeps your security checks tight and avoids unnecessary round-trips.

Administer users and their credentials

Run `admin_list_users` to see every account in your system. You can inspect specific identities using `admin_get_user` whenever you need a quick lookup. Manage access by calling `passkey_list_credentials` or `passkey_delete_credential` directly. This gives you total control over who can access your environment.

Setup guide

Set up Hanko (Passkey Auth) MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Hanko (Passkey Auth) MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Hanko (Passkey Auth) MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under hanko-passkey-auth-mcp.

json

{
  "mcpServers": {
    "hanko-passkey-auth-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Hanko. 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 Hanko (Passkey Auth) MCP in Claude Desktop

Open your config file at ~/Library/Application Support/Claude/claude_desktop_config.json. Add the server under the mcpServers key, restart the app, and you are ready to go.

Yes. The server runs as a subprocess, allowing your agent to call authentication tools against your local identity provider or staging environment.

It manages the credentials stored within your Hanko identity platform. You use the tools to list or revoke keys for specific user IDs.

The server only touches public keys and session tokens. No private keys ever leave the user's hardware device during the authentication handshake.

It accesses user identifiers, public WebAuthn credentials, and session tokens. This data is transmitted over encrypted channels directly to your Hanko instance.

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