PocketFlow AI Agent

<div align="center"> <img src="https://github.com/The-Pocket/.github/raw/main/assets/title.png" alt="Pocket Flow – 100-line minimalist LLM framework" width="600"/> </div> <!-- For translation, replace English with [English](https://github.com/The-Pocket/PocketFlow/blob/main/README.md), and remove the link for the target language. -->

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<a href="https://discord.gg/hUHHE9Sa6T"> <img src="https://img.shields.io/discord/1346833819172601907?logo=discord&style=flat"> </a>

Pocket Flow is a 100-line minimalist LLM framework

• Lightweight: Just 100 lines. Zero bloat, zero dependencies, zero vendor lock-in.

• Expressive: Everything you love—(Multi-)Agents, Workflow, RAG, and more.

• Agentic Coding: Let AI Agents (e.g., Cursor AI) build Agents—10x productivity boost!

Get started with Pocket Flow:

• To install, pip install pocketflowor just copy the source code (only 100 lines).
• To learn more, check out the video tutorial and documentation
• 🎉 Join our Discord to connect with other developers building with Pocket Flow!
• 🎉 Pocket Flow now has Typescript, Java, C++, Go, Rust and PHP versions!

Why Pocket Flow?

Current LLM frameworks are bloated... You only need 100 lines for LLM Framework!

<div align="center"> <img src="https://github.com/The-Pocket/.github/raw/main/assets/meme.jpg" width="400"/>

	Abstraction	App-Specific Wrappers	Vendor-Specific Wrappers	Lines	Size
LangChain	Agent, Chain	Many <br><sup><sub>(e.g., QA, Summarization)</sub></sup>	Many <br><sup><sub>(e.g., OpenAI, Pinecone, etc.)</sub></sup>	405K	+166MB
CrewAI	Agent, Chain	Many <br><sup><sub>(e.g., FileReadTool, SerperDevTool)</sub></sup>	Many <br><sup><sub>(e.g., OpenAI, Anthropic, Pinecone, etc.)</sub></sup>	18K	+173MB
SmolAgent	Agent	Some <br><sup><sub>(e.g., CodeAgent, VisitWebTool)</sub></sup>	Some <br><sup><sub>(e.g., DuckDuckGo, Hugging Face, etc.)</sub></sup>	8K	+198MB
LangGraph	Agent, Graph	Some <br><sup><sub>(e.g., Semantic Search)</sub></sup>	Some <br><sup><sub>(e.g., PostgresStore, SqliteSaver, etc.) </sub></sup>	37K	+51MB
AutoGen	Agent	Some <br><sup><sub>(e.g., Tool Agent, Chat Agent)</sub></sup>	Many <sup><sub>[Optional]<br> (e.g., OpenAI, Pinecone, etc.)</sub></sup>	7K <br><sup><sub>(core-only)</sub></sup>	+26MB <br><sup><sub>(core-only)</sub></sup>
PocketFlow	Graph	None	None	100	+56KB

</div>

How does Pocket Flow work?

The 100 lines capture the core abstraction of LLM frameworks: Graph! <br>

<div align="center"> <img src="https://github.com/The-Pocket/.github/raw/main/assets/abstraction.png" width="900"/> </div> <br>

From there, it's easy to implement popular design patterns like (Multi-)Agents, Workflow, RAG, etc. <br>

<div align="center"> <img src="https://github.com/The-Pocket/.github/raw/main/assets/design.png" width="900"/> </div> <br> ✨ Below are basic tutorials: <div align="center">

Name	Difficulty	Description
Chat	☆☆☆ <sup>Dummy</sup>	A basic chat bot with conversation history
Structured Output	☆☆☆ <sup>Dummy</sup>	Extracting structured data from resumes by prompting
Workflow	☆☆☆ <sup>Dummy</sup>	A writing workflow that outlines, writes content, and applies styling
Agent	☆☆☆ <sup>Dummy</sup>	A research agent that can search the web and answer questions
RAG	☆☆☆ <sup>Dummy</sup>	A simple Retrieval-augmented Generation process
Batch	☆☆☆ <sup>Dummy</sup>	A batch processor that translates markdown into multiple languages
Streaming	☆☆☆ <sup>Dummy</sup>	A real-time LLM streaming demo with user interrupt capability
Chat Guardrail	☆☆☆ <sup>Dummy</sup>	A travel advisor chatbot that only processes travel-related queries
Majority Vote	☆☆☆ <sup>Dummy</sup>	Improve reasoning accuracy by aggregating multiple solution attempts
Map-Reduce	☆☆☆ <sup>Dummy</sup>	Batch resume qualification using map-reduce pattern
CLI HITL	☆☆☆ <sup>Dummy</sup>	A command-line joke generator with human-in-the-loop feedback
Multi-Agent	★☆☆ <sup>Beginner</sup>	A Taboo word game for async communication between 2 agents
Supervisor	★☆☆ <sup>Beginner</sup>	Research agent is getting unreliable... Let's build a supervision process
Parallel	★☆☆ <sup>Beginner</sup>	A parallel execution demo that shows 3x speedup
Parallel Flow	★☆☆ <sup>Beginner</sup>	A parallel image processing showing 8x speedup
Thinking	★☆☆ <sup>Beginner</sup>	Solve complex reasoning problems through Chain-of-Thought
Memory	★☆☆ <sup>Beginner</sup>	A chat bot with short-term and long-term memory
Text2SQL	★☆☆ <sup>Beginner</sup>	Convert natural language to SQL queries with an auto-debug loop
Code Generator	★☆☆ <sup>Beginner</sup>	Generate test cases, implement solutions, and iteratively improve code
MCP	★☆☆ <sup>Beginner</sup>	Agent using Model Context Protocol for numerical operations
Agent Skills	★☆☆ <sup>Beginner</sup>	Route requests to reusable markdown skills and apply them in an agent flow
A2A	★☆☆ <sup>Beginner</sup>	Agent wrapped with A2A protocol for inter-agent communication
Streamlit FSM	★☆☆ <sup>Beginner</sup>	Streamlit app with finite state machine for HITL image generation
FastAPI WebSocket	★☆☆ <sup>Beginner</sup>	Real-time chat interface with streaming LLM responses via WebSocket
FastAPI Background	★☆☆ <sup>Beginner</sup>	FastAPI app with background jobs and real-time progress via SSE
Voice Chat	★☆☆ <sup>Beginner</sup>	An interactive voice chat application with VAD, STT, LLM, and TTS.
Judge	★☆☆ <sup>Beginner</sup>	LLM-as-Judge evaluator-optimizer loop for iterative content refinement
Debate	★☆☆ <sup>Beginner</sup>	Adversarial reasoning with two advocates and an impartial judge
Agentic RAG	★☆☆ <sup>Beginner</sup>	Agent-driven RAG that decides which documents to read
Self-Healing Mermaid	★☆☆ <sup>Beginner</sup>	Generate Mermaid diagrams with automatic error recovery
Heartbeat	★☆☆ <sup>Beginner</sup>	ClawBot-like always-on periodic monitoring with nested flows
Lead Generation	★★☆ <sup>Intermediate</sup>	Sales pipeline: scrape, enrich, score, and personalize emails
Newsletter	★★☆ <sup>Intermediate</sup>	AI newsletter curation: search, filter, summarize, and format
Invoice Processing	★★☆ <sup>Intermediate</sup>	Extract and validate invoice data from PDFs using vision
NotebookLM	★★☆ <sup>Intermediate</sup>	Turn documents into a podcast with two AI hosts
Deep Research	★★☆ <sup>Intermediate</sup>	Recursive map-reduce research with iterative refinement
Coding Agent	★★★ <sup>Advanced</sup>	Production coding agent with 6 tools, memory, and patch-as-subflow

</div>

👀 Want to see other tutorials for dummies? Create an issue!

How to Use Pocket Flow?

🚀 Through Agentic Coding—the fastest LLM App development paradigm-where humans design and agents code!

<br> <div align="center"> <a href="https://zacharyhuang.substack.com/p/agentic-coding-the-most-fun-way-to" target="_blank"> <img src="https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F423a39af-49e8-483b-bc5a-88cc764350c6_1050x588.png" width="700" alt="IMAGE ALT TEXT" style="cursor: pointer;"> </a> </div> <br>

✨ Below are examples of more complex LLM Apps:

<div align="center">

App Name	Difficulty	Topics	Human Design	Agent Code
Website Chatbot <br> <sup><sub>Turn your website into a 24/7 customer support genius</sup></sub>	★★☆ <br> Medium	Agent <br> RAG	Design Doc	Flow Code
Danganronpa Simulator <br> <sup><sub>Forget the Turing test. Danganronpa, the ultimate AI experiment!</sup></sub>	★★★ <br> Advanced	Workflow <br> Agent	Design Doc	Flow Code
Codebase Knowledge Builder <br> <sup><sub>Life's too short to stare at others' code in confusion</sup></sub>	★★☆ <br> Medium	Workflow	Design Doc	Flow Code
Build Cursor with Cursor <br> <sup><sub>We'll reach the singularity soon ...</sup></sub>	★★★ <br> Advanced	Agent	Design Doc	Flow Code
Ask AI Paul Graham <br> <sup><sub>Ask AI Paul Graham, in case you don't get in</sup></sub>	★★☆ <br> Medium	RAG <br> Map Reduce <br> TTS	Design Doc	Flow Code
Youtube Summarizer <br> <sup><sub> Explain YouTube Videos to you like you're 5 </sup></sub>	★☆☆ <br> Beginner	Map Reduce	Design Doc	Flow Code
Cold Opener Generator <br> <sup><sub> Instant icebreakers that turn cold leads hot </sup></sub>	★☆☆ <br> Beginner	Map Reduce <br> Web Search	Design Doc	Flow Code

</div>

• Want to learn Agentic Coding?

  • Check out my YouTube for video tutorial on how some apps above are made!

  • Want to build your own LLM App? Read this post! Start with this template!