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AI Notes That Think for You

Capture voice or text, and AI handles the rest — transcription, summaries, action items, and smart tags. Plus a human-in-the-loop API that lets AI agents ask real people when they need to.

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Technical Specs
PlatformWeb (listen.simyl.ai)
FrameworkNext.js 16 with App Router, React 19
AIAWS Transcribe, Amazon Bedrock (Claude)
AuthAWS Cognito with passwordless OTP via SES

Notes Are Captured but Never Processed

4 pain points

Every team captures notes. Almost no team processes them systematically.

  • 01

    Notes That Sit Unprocessed

    You capture notes from meetings and calls, but rarely go back to extract what matters. Action items get buried.
  • 02

    Voice Recordings Untranscribed

    You record important conversations, then never listen again. The insights stay locked in audio files.
  • 03

    Context Lost Between Tools

    Decisions are scattered across docs, Slack, and email. No single source of truth for what was said and agreed.
  • 04

    AI Agents Can’t Ask Humans

    When an AI agent needs human judgment, there’s no seamless bridge. Automation stops and waits for manual intervention.

Capture. Process. Act.

3 pillars

Simyl Listen processes every note through an AI pipeline — transcribing audio, extracting action items, generating summaries, and connecting AI agents with human judgment via SMS.

  • 01

    AI Processing Pipeline

    Every note — voice or text — flows through an AI pipeline. Automatic transcription, summarization, action item extraction, and smart categorization. No manual processing needed.
  • 02

    Capture Anything

    Type a note or upload audio up to 100MB. Direct-to-S3 upload from your browser means no server bottleneck and no file size headaches. Async processing with real-time status tracking.
  • 03

    Human-in-the-Loop Bridge

    AI agents request human input via SMS and poll for answers. Designed for Simyl Code integration — the AI asks a question, a human responds by text, and automation continues.

Everything Your Notes Need

8 features

From voice capture to AI insights to human-in-the-loop integration — built for how teams actually work.

  • 01

    AI Summarization

    Amazon Bedrock generates concise summaries from any note content. See the key points without reading the full text.
  • 02

    Audio Transcription

    AWS Transcribe converts voice recordings to text automatically. Upload, wait, and get a full transcript.
  • 03

    Action Item Extraction

    AI identifies decisions, follow-ups, and action items from your notes. Never lose track of what was agreed.
  • 04

    Smart Tagging

    Notes are auto-categorized based on content analysis. Search and filter by tags to find what you need instantly.
  • 05

    Human-in-the-Loop API

    REST API for AI agents to request human input. Simyl Code’s Claude agent sends a question, a human replies via SMS, the answer is polled and returned.
  • 06

    SMS Integration

    Outbound notifications and inbound responses via AWS SNS. Phone verification with OTP and configurable spend controls.
  • 07

    Passwordless Auth

    Email OTP login via AWS Cognito and SES. No passwords created, stored, or managed. Entire attack categories eliminated.
  • 08

    Async Processing Pipeline

    Notes move through pending, processing, and processed states. Track AI progress in real-time without blocking your workflow.

Why Simyl Listen?

3 comparisons

  • vs. Note-Taking Apps

    Note apps store your notes. Simyl Listen processes them — transcribing, summarizing, and extracting action items automatically.

  • vs. Meeting Transcription Tools

    Transcription tools give you a wall of text. Listen gives you summaries, action items, and smart tags from any audio or text input.

  • vs. No Human-in-the-Loop

    When AI agents hit a wall, they stop. Listen bridges that gap — AI asks a human via SMS, gets an answer, and keeps going.

Everything You Need

12 capabilities
Text and audio note creation
Direct-to-S3 audio upload (up to 100MB)
AI transcription via AWS Transcribe
AI summarization via Amazon Bedrock
Automatic action item extraction
Smart tagging and categorization
Human-in-the-loop API with SMS
Simyl Code integration via WebFetch
Passwordless OTP authentication
Role-based access (Trial, Full, Admin)
Admin panel with health monitoring
GDPR-compliant cookie consent

Technical Details

6 specs
Specifications
PlatformWeb (listen.simyl.ai)
FrameworkNext.js 16 with App Router, React 19
AIAWS Transcribe, Amazon Bedrock (Claude)
AuthAWS Cognito with passwordless OTP via SES
StorageDynamoDB (single-table design), S3 for audio files
InfrastructureAWS serverless (Lambda via SST v3), AES-256 encryption at rest

Frequently Asked Questions

5 questions

  • What does Simyl Listen do?

    Simyl Listen processes every voice or text note through an AI pipeline: automatic transcription, summarization, action item extraction, and smart tagging. Capture a note and the AI handles the rest.

  • Can Simyl Listen transcribe audio recordings?

    Yes. Upload audio files up to 100MB and AWS Transcribe converts them to text automatically. Files upload direct-to-S3 from your browser, so there is no server bottleneck.

  • What is the human-in-the-loop API?

    A REST API that lets AI agents request human input via SMS. The agent sends a question, a human replies by text message, and the answer is returned to the agent so automation can continue. It is designed for integration with Simyl Code.

  • How do I sign in to Simyl Listen?

    Simyl Listen uses passwordless email OTP login via AWS Cognito. No passwords are ever created, stored, or managed.

  • Is Simyl Listen free to try?

    Yes. Simyl Listen is in private preview and free to try at listen.simyl.ai — no credit card required.

Try Simyl Listen Today

Start capturing and processing notes with AI. No credit card required.

Try Free →