Build it with a coding agent.
An alternative to wiring the Quickstart by hand. Paste one prompt into a coding agent and it builds the same redirect flow in one shot.
The prompt
Your Helix dashboard serves this prompt with your Space ID already filled in, under Integration Guide → Prompt Mode at capsule.helix.id/dashboard/spaces/<space-id>/integration. Copy it from there rather than retyping the placeholder below.
Use https://docs.helix.id/llms-full.txt as reference.
Add @helix-id/node to my app with voice authentication.
Space ID: <your-space-id>.
Create a /helix/start endpoint that generates a redirect URL
and a /helix/callback endpoint that verifies the HMAC-signed callback.
Use the shared secret from the HELIX_SECRET environment variable —
createAuthUrl is async and takes it as the secret option to sign the URL.
Add a frontend button that starts the voice auth flow via redirect.What the agent will build
| Endpoint | Purpose |
|---|---|
GET /helix/start | Generates a redirect URL and stores the nonce in the user's session. |
GET /helix/callback | Verifies the HMAC-signed callback and redirects the user onward. |
| Frontend button | Triggers the voice auth flow via a full-page redirect. |