Call Assistant
No setup, no bot
One admin prompt installs "Call Assistant Speaker", our own Core Audio driver. The meeting app never sees a participant it didn't invite, and you hear the call normally.
Osavus Technology
No bot ever joins your meeting.
Call Assistant captures both sides of any call through its own audio device, transcribes on your Mac with Whisper, and turns what was said into actions you can track. Teams, Meet, Zoom — it never joins the call, it listens from your side.
v0.5 · private beta
Signed builds ship with v1.0
RECORDING
2 streams · whisper medium · on-device
00:00
Your mic → You
Meeting audio → Remote
Nothing uploaded
The loop
Every call feeds the next one.
Recording is the middle of the story, not the end. What someone promised on Tuesday is waiting for you when you open Thursday's call.
- 01
Prepare
Open a briefing built from what's still outstanding with these people: open actions, past decisions, where you left it.
- 02
Record
Start the session. Your mic and the meeting's audio are captured as two separate streams, so every line is already labelled You or Remote.
- 03
Extract
End the call and review what Claude pulled out — summary, actions with an owner and a deadline, decisions. You edit it before anything is saved.
- 04
Track
Actions live in one view across every call and project, with search over transcripts and playback that jumps to the moment something was said.
↺ back to 01 — the next briefing reads from what's still open here.
What it does
Built for the call you're actually in.
Capture
Transcription
Whisper, on your machine
Runs locally — medium by default. Two streams mean You and Remote labels come for free, with no diarization guesswork. An archival re-pass upgrades a saved call later.
Live AI
Help while you're talking
Turn on fact-checks, commitments, suggestions or open questions, or ask free-form questions about what's been said so far. A cost meter runs alongside and stops at your cap.
Afterwards
You review before it saves
Summary, actions and decisions arrive as a draft with the quote each one came from. Edit, uncheck, then save — nothing is filed away on your behalf.
Everyday use
Menu bar and shortcuts
Drive a live session from the menu bar with the window hidden, and reach everything by keyboard.
Connected
Read-only MCP server
Point Claude Desktop or Claude Code at your real call history and ask it questions directly.
Privacy
Your calls stay on your Mac.
Audio and transcripts are plain files in your home folder. The only thing that leaves the machine is a Claude API call you switched on yourself.
- →No telemetry. No analytics, no usage reporting, no system profiling.
- →Your own API key. Stored in the macOS Keychain. Turn every AI feature off and the app makes zero API calls.
- →Plain files you own. A stereo WAV and a line-by-line transcript per call — readable without this app, deletable without it too.
- →One outbound check. At launch the app asks this site whether a newer version exists. That's it.
Requirements
What you need.
System
macOS 11 or later, Apple Silicon.
Disk
~1.5 GB for the default Whisper model, downloaded in the app.
AI features
A Claude API key. Capture and transcription work without one.
Audio
Headphones — the meeting plays through to your real output.