I Built an Autonomous AI News Agent with LangGraph (Open Source)

The Problem

The AI field moves at breakneck speed. Every day brings new ArXiv papers, trending GitHub repos, OpenAI announcements, and Anthropic updates. Keeping up is a full-time job.

The Solution: Pulse AI

I built Pulse AI - an autonomous agent that handles the entire news curation pipeline:

1. Scraping - Pulls from ArXiv, GitHub Trending, RSS feeds, tech blogs
2. Deduplication - Uses sentence embeddings to remove duplicates
3. Summarization - Generates 3-sentence summaries + social hooks via Llama 3.3
4. Publishing - Auto-posts to 2 platforms
5. Podcast Creation - Generates podcast-style audio summaries using Edge TTS

The Tech Stack

• LangGraph StateGraph for typed agent workflows
• FastAPI backend with SQLite
• Next.js 14 dashboard with Tailwind
• Edge TTS for free podcast generation

It's Now Open Source!

I'm releasing Pulse AI under the MIT license. Check out the repo and consider contributing!

GitHub: https://github.com/tejiri-code/pulse-ai