modbender Browser Audio Capture
Give any AI agent ears for the browser. One Chrome extension captures audio from any tab — meetings, YouTube, podcasts, webinars, courses, earnings calls — and streams it to your AI pipeline.
Why Use This
Your AI agent can't hear anything happening in your browser. This skill fixes that. Capture audio from any Chrome tab and stream it to your agent — no API keys, no OAuth, no per-platform integrations.
Use cases: meeting summaries, YouTube/podcast notes, competitive intel from earnings calls, auto-notes from online courses, customer call analysis — anything that plays audio in a browser tab.
Works with any AI agent — Claude, ChatGPT, OpenClaw, LangChain, CrewAI, or your own. If your agent can run shell commands or receive HTTP, it gets browser audio.
Prerequisites
Chrome with remote debugging:
# macOS
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome \
--remote-debugging-port=9222 --user-data-dir=$HOME/.chrome-debug-profile &
Python 3.9+ with aiohttp: pip install aiohttp
Quick Start
CLI (any agent that can exec)
# List tabs — meetings flagged with 🎙️
python3 -m browser_capture.cli tabs
# Auto-detect and capture meeting tab
python3 -m browser_capture.cli capture
# Continuous watch mode
python3 -m browser_capture.cli watch --interval 15
# Stop
python3 -m browser_capture.cli stop
Chrome Extension (one-click, persistent)
chrome://extensions/→ Developer mode → Load unpacked →scripts/extension/- Join a meeting → click Percept icon → Start Capturing
- Close popup — capture continues in background
Supported Platforms
Google Meet • Zoom (web) • Microsoft Teams • Webex • Whereby • Around • Cal.com • Riverside • StreamYard • Ping • Daily.co • Jitsi • Discord — plus any future platform that runs in a browser.
Audio Output
Streams to http://127.0.0.1:8900/audio/browser as JSON:
{
"sessionId": "browser_1709234567890",
"audio": "<base64 PCM16>",
"sampleRate": 16000,
"format": "pcm16",
"tabUrl": "https://meet.google.com/...",
"tabTitle": "Weekly Standup"
}
Configure endpoint in scripts/extension/offscreen.js (PERCEPT_URL). Point it at Whisper, Deepgram, NVIDIA Riva, or any transcription service.
Troubleshooting
- No tabs: Chrome needs
--remote-debugging-port=9222 - Button won't click: Remove + re-add extension (MV3 caches aggressively)
- Audio not arriving: Check receiver on port 8900. Extension sends to
/audio/browser