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

Q: Can I use Cline to manage user credentials?

Yes. Cline can invoke passkeylistcredentials to show you which WebAuthn keys are registered to a user, helping you build credential management dashboards quickly.

Let Cline build, write, and test your complete Hanko passkey auth flow inside VS Code.

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Connect Hanko (Passkey Auth) MCP to Cline

Create your Vinkius account to connect Hanko (Passkey Auth) to Cline 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 Cline

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Build End-to-End Login Flows with Cline

This Hanko (Passkey Auth) MCP Server allows Cline to write and test your WebAuthn login logic. Cline starts by calling `passkey_login_init` to retrieve the challenge options required for your client-side scripts. It then writes the JavaScript to call the browser's credentials API and wires the output to `passkey_login_finalize`. Cline runs local headless browser tests to confirm the entire login sequence completes without errors.

Direct Hanko User Management in VS Code

This MCP Server grants Cline the ability to manage your Hanko sandbox users. Cline uses `admin_create_user` to spin up test profiles and populates them with mock data during development. When testing edge cases, Cline uses `admin_list_users` to find specific test accounts and verifies their status. It cleans up stale data by calling `passkey_delete_credential` when test runs finish.

Validate Hanko Sessions Autonomously

This MCP Server exposes validation tools to secure your backend routes. Cline integrates `public_validate_session` into your Express or Next.js middleware to inspect incoming cookies. It also pulls the latest JSON Web Key Set via `public_get_jwks` to verify token signatures locally. Cline writes the verification code, handles the errors, and runs the backend server to make sure it works.

Setup guide

Set up Hanko (Passkey Auth) MCP in Cline

Prerequisites

VS Code with Cline extension installed
Active Vinkius subscription with a valid endpoint token

1

Open Cline MCP settings

Click the Cline icon in the VS Code sidebar to open the Cline panel. Then click the MCP Servers icon (server stack) at the top-right corner of the panel.
2

Add a remote server

Click "Remote Servers" at the top, then click "Add Remote MCP". In the Name field, type hanko-passkey-auth-mcp. In the URL field, paste your Vinkius endpoint: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp. Get your token from cloud.vinkius.com.
3

Enable the server

After saving, the server appears in the Cline MCP panel. Toggle the switch to enable it. The status indicator turns green when the connection is live.
4

Start using tools

Return to the Cline chat and ask: "Check my latest Hanko (Passkey Auth) refund status." Cline will discover the available tools and request your approval before invoking each one — giving you full control over every action.

Cline MCP Settings

{
  "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 Cline

Click the MCP Servers icon in the Cline sidebar and paste the connection URL under your remote servers. Cline auto-discovers the tools and can immediately start writing your WebAuthn integration.

Yes, Cline writes the complete HTML and JavaScript needed to handle WebAuthn. It hooks up your buttons to `passkey_registration_init` and handles the browser's credential creation callback.

Cline reads your server logs, identifies where the token verification failed, and uses `public_get_jwks` to check your public keys. It then updates your middleware to parse the headers correctly.

Yes. Cline can invoke `passkey_list_credentials` to show you which WebAuthn keys are registered to a user, helping you build credential management dashboards quickly.

Your user IDs and WebAuthn public keys remain safely stored inside Hanko's secure database. Cline only receives transient JSON payloads through the secure local MCP connection, ensuring no sensitive credentials or personal data are exposed to external logging.

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