YT Transcript Summarizer by Roberto Reale

Summarize YouTube videos with Claude AI using transcript extraction.

Available on Firefox for Android™

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About this extension

Extracts the transcript of any YouTube video and sends it to Claude AI for summarization.

Supports two modes:
- API mode: calls Anthropic's API directly using your personal API key
- Web mode: opens claude.ai and pastes the transcript automatically

Features: multi-language transcripts, extended thinking (Claude 3.7), batch processing, dark/light theme.

Your API key is stored locally on your device only and never shared.

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Permissions and data

Required permissions:

Download files and read and modify the browser’s download history
Display notifications to you
Access browser tabs
Access your data for claude.ai
Access your data for chatgpt.com
Access your data for gemini.google.com

Optional permissions:

Access your data for www.youtube.com
Access your data for youtu.be
Access your data for api.anthropic.com
Access your data for claude.ai
Access your data for api.openai.com
Access your data for chatgpt.com
Access your data for generativelanguage.googleapis.com
Access your data for gemini.google.com
Access your data for openrouter.ai
Access your data for localhost
Access your data for 127.0.0.1

Data collection:

The developer says this extension doesn't require data collection.