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Every VoiceOS integration — Gmail, Google Calendar, Linear, and the ones you make — speaks the same visual language: native cards in the notch.
Two VoiceOS notch cards side by side: a Gmail inbox card listing three emails with a green New badge, and a Google Calendar card listing the day's three events with times.

Gmail and Google Calendar answering in the notch. Your integration gets this exact surface.

You’ll build one of your own without leaving the app. No code, no terminal.
1

Open the Studio

Integrations → Custom tab → Build anything.
The VoiceOS Integrations page on the Custom tab, showing the Build anything hero card and the My Integrations list.

Your integrations live on the Custom tab; Build anything starts a new one.

2

Say what you want

Describe it the way you’d brief a person: what to fetch or track, what each action does, what you want to see.
The Studio composer titled 'Tell VoiceOS what to build' with the brief 'Show me the Hacker News front page, and read the top story aloud with ElevenLabs.' typed in, above two template cards.

One sentence is enough. You can also paste an MCP server URL to connect one directly.

3

Answer the quick decisions

VoiceOS researches the services involved and asks up to four multiple-choice questions — data source, API keys, scope. The recommended answer is always first, and Skip — build as described is always available.
The Quick decisions screen with two answered questions: an API key question with 'I have an ElevenLabs API key' selected, and a scope question with 'Read the front page' selected, above a Start building button.

The Studio caught that reading aloud needs an ElevenLabs key, and asks up front — not after the build.

4

Watch it build

A couple of minutes: it plans, generates, validates itself, installs a live draft on your Mac, draws an icon, and design-reviews its own cards.
The Studio build view for a generated Hacker News integration: Required fields marked 2 Missing, Tools with per-action 'asks first' toggles, logs reading 'Reviewing the design…', and a notch preview pane with tap-to-preview suggestions.

Left: your integration taking shape. Right: a live notch preview.

Closing the window doesn’t stop the build. A progress row stays in My Integrations — reopen it any time.
5

Test-drive it

The preview runs real agent turns against your draft. Tap a suggestion chip or type an utterance; acting tools park on their confirmation card first, exactly as they will live.
A Hacker News notch card with a globe icon, 'Front page' trailing label, and three story rows with authors, comment counts, and point scores.

Your integration answering in the preview — a real card from a real tool run.

Two things worth doing before you save:
  • Fill in Required fields (that ElevenLabs API key). The draft relaunches with your values, so the full flow is testable immediately.
  • Click each row in Tools to stage that action’s card, and use the Asks first toggles to decide which actions confirm before running.
6

Save — then just talk

Hit Save. It lands in My Integrations, and from the next conversation on the agent can use it anywhere: “what’s on Hacker News?” → card in the notch, story read aloud in Rachel’s voice.

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Changing it later

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Where next

The Studio, in depth

Scoped refines, brand-matched design, icon generation, developer handoff.

Result cards

The block language behind every card you just saw.

Build with code

The same integration by hand — full control over tools and cards.

How it works

The architecture: manifest, tools, confirmations, and the notch.