Miss nothing with
your personal AI scribe.
From meetings to hallway conversations, HarkenAI is listening in the background, intelligently separating and summarizing your conversations so nothing gets missed.
Available on Apple Watch, iPhone, or your Mac desktop.
Access all your data in the app or via MCP/API.
Sessions
Acme Corp — pricing call
In progress · 12:04
Redpoint — Series A follow-up
48mDiligence timeline agreed; data room opens Friday.
1:1 — Dana Whitfield
26mQ3 goals, promo case, hiring two more AEs.
Design review — onboarding v3
41mShipping the two-step permission flow first.
Coffee — Marcus Lee, Vanta
18mIntro to their Head of Security next week.
Set it and forget it
Long-duration listening, captured in single tap
From your phone, watch, or desktop, a single tap captures multiple conversations, separated and summarized by HarkenAI.
The Problem
Conversations are where work
actually happens.
Important decisions happen in meetings, hallway conversations, phone calls, quick huddles, investor discussions, and customer calls. But most of those conversations disappear the moment they end.
Work gets repeated. Follow-ups fall through.
Important insights get lost.
The Solution
HarkenAI remembers your conversations.
Runs quietly in the background and automatically turns conversations into structured records.
A transcript
Word-for-word record
A clear summary
AI-generated overview
Action items
Next steps extracted
Key topics
Themes identified
People involved
Speaker detection
Contact intelligence
Emails & LinkedIn
Everything becomes organized and searchable.
How It Works
AI listening and analysis, total recall
Tap
One tap on your Apple Watch, iPhone, or Mac starts recording. No meeting bots, no setup, nothing to join.
Works wherever you are.
Listen all day
HarkenAI listens quietly in the background for as long as you like — meetings, calls, and hallway conversations, all hands-free.
No manual recording.
Separate
Dynamic separation detects where one conversation ends and the next begins, splitting your day into distinct meetings automatically.
No manual start or stop.
Extract
AI pulls out the transcript, a clear summary, key points, action items, and the people involved — all searchable across your history.
Apple Watch
One tap on your wrist and
it’s already listening.
Put the HarkenAI complication on your watch face and capture lives one tap away — no phone out of your pocket, no laptop open, no app to hunt for. The conversation that starts in a hallway gets recorded like any meeting on your calendar.
Recording in under a second
Tap the complication and capture starts on the wrist — no unlock, no menu.
Lands in the same timeline
Wrist sessions sync to iPhone, Mac, and web with the same summaries and action items.
Quiet by design
A glance shows elapsed time and live audio. Stop is one tap, same as start.
Features
Everything you need to never forget
Continuous Listening
Runs quietly while you work. Meetings, calls, and conversations captured automatically — no meeting bots.
Dynamic Separation
Automatically detects where conversations begin and end. Sequential discussions become distinct records.
Conversation Intelligence
AI summaries, action item detection, decision tracking, and topic extraction from every conversation.
Relationship Intelligence
Speaker identification, company detection, email lookup, and LinkedIn connection from conversation records.
Conversation Memory
Full-text search across every conversation. Cross-meeting context and an AI assistant for past conversations.
Cross-Platform Access
Mac app for desktop capture, iPhone app for on-the-go, Apple Watch for one-tap capture from your wrist, and web app for search and review from anywhere.
Developer API + MCP
Public REST API and first-party MCP server. Wire HarkenAI into Claude, Cursor, or your own agents with one config block.
Second Brain
Every conversation grows your second brain
HarkenAI is the source. Point Claude — or whichever AI you use — at it over MCP or the REST API, and let it pull transcripts, distill what matters, and file the result in a vault you own. Your personal context compounds with every conversation.
Your AI reads it directly
A hosted MCP server and public REST API. One config block and Claude, Cursor, or your own agent can search and read every session.
Distilled, not dumped
Summaries, decisions, action items, and the people involved are already extracted — so your agent files knowledge, not raw noise.
Stored where you own it
Have your agent write into Obsidian, Notion, or plain markdown on your disk. The context is yours and it keeps compounding.
Built For Agents
An open API your agents can talk to
Every transcript, segment, and speaker — one bearer token away. Five MCP tools ship out of the box so Claude, Cursor, and Claude Code work with HarkenAI on day one.
REST API
/api/v1# stream every transcript as JSONL curl -H "Authorization: Bearer hkn_..." \ https://harkenai-api.onrender.com/api/v1/transcripts \ > transcripts.jsonl
Sessions, transcripts, contacts. Read-only, cursor-paginated, with a streaming bulk export. Interactive docs ↗
MCP server
Hosted · no installclaude mcp add --transport http harkenai \ https://harkenai-api.onrender.com/mcp \ --header "Authorization: Bearer hkn_..."
Point Claude, Cursor, or ChatGPT at the hosted endpoint — nothing to install, or sign in with OAuth (no key). Five tools: search_sessions, get_session, get_transcript, list_recent, search_contacts.
Comparison
How HarkenAI compares
Most tools help you take notes. HarkenAI helps you remember and understand your conversations.
| Feature | HarkenAI | Granola |
|---|---|---|
| Long-duration listening | ||
| Dynamic conversation separation | ||
| AI summaries & action items | ||
| Speaker identification | Limited | |
| Email lookup for participants | ||
| LinkedIn connect | ||
| Mac app | ||
| iOS app | ||
| Apple Watch app | ||
| Web app | ||
| Public REST API | ||
| First-party MCP server | ||
| Access summaries, transcripts, raw audio via app or MCP/API |
Granola is a per-meeting note-taker with average transcription and limited MCP access.
HarkenAI is designed to listen efficiently for long durations and provides complete, secure access to your data via app or MCP/API.
Privacy & Security
Your conversations stay private — and secure.
We treat your voice, transcripts, and contacts as sensitive by default. Security is layered across every part of the product — from how you sign in to how data is stored, retained, and eventually deleted.
Encrypted in transit & at rest
TLS everywhere, one-way hashed passwords, and connected-account credentials sealed with AWS KMS-managed AES-256 keys.
Secure sign-in, every time
Email, Google, or Apple sign-in with automatic lockout, rotating session tokens, and Face ID / Touch ID.
Your data stays yours
Every request is scoped to your account. No cross-account access, and admins see status, never content.
Private, locked-down storage
Recordings and transcripts live in private storage that is never publicly reachable, with links that expire fast.
Automatic retention & cleanup
Removed on a fixed retention schedule enforced by two independent systems. Deleting a conversation wipes everything.
You're in control
Delete or export anything anytime. Consent before your first recording, and no third-party ad-tracking SDKs.
Controls verified in an independent, code-level security audit of the HarkenAI codebase (August 2026). This overview is provided for general information and is not a compliance certification. Full technical documentation is available on request.
Built For
Built for professionals
Founders
Track investor meetings, hiring conversations, and product discussions. Never forget what was said.
Sales Professionals
Capture customer calls and automatically extract decision makers, objections, and action items.
Consultants
Turn every client conversation into organized insights and follow-ups.
Professionals
Remember the people you meet and what you discussed.
Developers & Agent Builders
Build your own conversation-intelligence agents on a public REST API with a first-party MCP server. One config block and Claude or Cursor can read your sessions.
Never lose another
important conversation.
One tap starts it. HarkenAI turns your whole day into organized, searchable meetings — summaries, action items, and all.