A curated list of awesome LLM frameworks and agent development tools. If you have a suggestion, feel free to open an issue or pull request. (Last updated: 2025-10-19)

• CrewAI - Framework for orchestrating role-playing AI agents

  39,303 stars · 5,221 forks · 263 contributors · 123 issues · Python · MIT

  • Role-based agent design
  • Multi-agent collaboration
  • Flexible memory system
  • Built-in error handling

• Langchain - Building applications with LLMs through composability

  117,493 stars · 19,345 forks · 471 contributors · 272 issues · Python · MIT

  • Modular and extensible architecture
  • Unified interface for LLMs
  • Pre-built agent toolkits
  • CSV, JSON, and SQL agents
  • Python and Pandas integration
  • Vector store capabilities

• Microsoft AutoGen - Framework for building multi-agent conversational systems

  50,870 stars · 7,764 forks · 446 contributors · 493 issues · Python · CC-BY-4.0

  • Multi-agent architecture
  • Customizable agents
  • Code execution support
  • Flexible human involvement
  • Advanced conversation management

• OpenManus - Open-source AI agent platform for building general-purpose agents

  50,348 stars · 8,804 forks · 53 contributors · 511 issues · Python · MIT

  • Modular architecture for customization
  • Data analysis and visualization agents
  • Reinforcement learning integration (OpenManus-RL)
  • No invitation code required
  • Built by MetaGPT contributors

• Llama Index - Data framework for LLM applications

  44,784 stars · 6,456 forks · 475 contributors · 259 issues · Python · MIT

  • Advanced indexing and retrieval
  • Support for 160+ data sources
  • Customizable RAG workflows
  • Structured data handling
  • Query optimization

• Microsoft Semantic Kernel - Integration framework for AI models

  26,481 stars · 4,299 forks · 376 contributors · 571 issues · C# · MIT

  • Enterprise-grade security
  • Multi-language support
  • Plugin architecture
  • Responsible AI features
  • Memory management

• Dify - Open-source framework for LLM applications

  116,743 stars · 18,013 forks · 461 contributors · 633 issues · TypeScript · NOASSERTION

  • Visual prompt orchestration
  • Long context integration
  • API-based development
  • Multi-model support
  • RAG pipeline

• Haystack - End-to-end NLP framework

  23,078 stars · 2,437 forks · 292 contributors · 120 issues · Python · Apache-2.0

  • Document processing
  • Neural search
  • Question answering
  • Semantic search
  • Agent capabilities

• Embedchain - Framework for ChatGPT-like bots

  41,418 stars · 4,427 forks · 243 contributors · 441 issues · Python · Apache-2.0

  • Multi-source data ingestion
  • Automated embedding
  • Context window management
  • Multiple LLM support
  • RAG optimization

• Google ADK - Agent Development Kit for building, evaluating, and deploying AI agents

  13,800 stars · 2,055 forks · 146 contributors · 629 issues · Python · Apache-2.0

  • Code-first development approach
  • Modular multi-agent systems
  • Model-agnostic and deployment-agnostic
  • Built-in developer UI (adk-web)
  • Deploy on Cloud Run or Vertex AI

• SuperAGI - Open-source autonomous AI agent framework

  16,788 stars · 2,095 forks · 63 contributors · 201 issues · Python · MIT

  • Customizable agent workflows
  • Tool creation framework
  • Performance monitoring
  • Resource management
  • Multi-vector memory storage

• Kiln AI - Tools for building AI products including agents, evals, RAG systems, and fine-tuning

  4,316 stars · 311 forks · 12 contributors · 34 issues · Python · NOASSERTION

  • Free desktop application for no-code development
  • Evaluation frameworks
  • RAG system building
  • Synthetic data generation
  • Agent development tools

• AGiXT - Scalable framework for AI agents

  3,093 stars · 430 forks · 41 contributors · 2 issues · Python · MIT

  • Multi-provider support
  • Chain of thought processing
  • Extensible plugin system
  • Command chaining
  • Web UI included

• XAgent - Autonomous LLM-based agent framework

  8,450 stars · 893 forks · 33 contributors · 55 issues · Python · Apache-2.0

  • Human-like planning
  • Autonomous task decomposition
  • Tool learning capabilities
  • Advanced error recovery
  • Built-in action validation

• Neurolink - Multi-provider AI agent framework with workflow orchestration capabilities, unifying 12+ providers (OpenAI, Google, Anthropic, AWS, Azure, Groq, Together AI, Mistral, Cohere, Fireworks, Cloudflare, Ollama)

  81 stars · 64 forks · 45 contributors · 10 issues · TypeScript · MIT

  • Multi-agent framework with workflow orchestration
  • Unified interface for 12+ AI providers
  • Edge-first architecture with local/cloud deployment
  • Production-grade streaming and tool calling
  • Battle-tested at Juspay (15M+ requests/month)

• OpenAgents - Open platform for language agents

  4,589 stars · 499 forks · 16 contributors · 12 issues · Python · Apache-2.0

  • Data analysis capabilities
  • Web browsing integration
  • Coding assistance
  • Plugin ecosystem
  • Interactive visualization

• AI Legion - Swarm framework for autonomous agents

  1,424 stars · 172 forks · 6 contributors · 8 issues · TypeScript · MIT

  • Multi-agent coordination
  • Dynamic task allocation
  • Emergent behavior support
  • Flexible agent roles
  • Real-time collaboration

• Agent Protocol - Unified interface for AI agents

  1,435 stars · 163 forks · 14 contributors · 42 issues · Python · MIT

  • Standardized communication
  • Language-agnostic design
  • Tool integration specs
  • Interoperability focus
  • Protocol versioning

• Agents.js - JavaScript framework for building AI agents

  • Browser-native implementation
  • Event-driven architecture
  • Tool abstraction layer
  • Memory management
  • Real-time processing

• Cache-to-Cache - Novel paradigm for direct semantic communication between LLMs via KV-Cache

  71 stars · 4 forks · 2 contributors · 1 issues · Python · Apache-2.0

  • Direct semantic communication via KV-Cache
  • Multi-agent system integration
  • Neural cache projection and fusion

• CAMEL - Communicative Agents for "Mind" Exploration

  14,557 stars · 1,597 forks · 166 contributors · 593 issues · Python · Apache-2.0

  • Role-playing framework
  • Task-oriented dialogue
  • Multi-agent conversations
  • Behavioral analysis
  • Cognitive architecture

• BabyAGI - Lightweight framework for AI task management

  • Task prioritization
  • Autonomous execution
  • Memory persistence
  • Goal-oriented planning
  • Resource optimization

• Autonomous-GPT - Framework for autonomous GPT-4 agents

  179,092 stars · 46,041 forks · 433 contributors · 269 issues · Python · NOASSERTION

  • Internet access capabilities
  • Long-term memory
  • Goal-oriented behavior
  • File operations
  • Command execution

• MetaGPT - Multi-agent framework for software development

  58,981 stars · 7,147 forks · 115 contributors · 61 issues · Python · MIT

  • Role-based development
  • Code generation
  • Project management
  • Documentation writing
  • Testing automation

• GenoMAS - Multi-agent framework for scientific discovery and automated data analysis

  121 stars · 16 forks · 1 contributors · 0 issues · Python · MIT

  • Guided planning framework
  • Typed message-passing protocol
  • Heterogeneous LLM architecture
  • Domain-agnostic design
  • Scientific workflow automation

• minions - Extensible framework for AI assistants

  • Custom behavior definition
  • Tool integration
  • State management
  • Event handling
  • Parallel execution

• ix - Autonomous agent framework

  1,038 stars · 129 forks · 5 contributors · 14 issues · Python · MIT

  • Visual workflow builder
  • Sandbox environments
  • Tool integration
  • Process monitoring
  • Agent collaboration

• saplings - Build smarter agents using tree search

  263 stars · 16 forks · 4 contributors · 0 issues · Python · Apache-2.0

  • Boost reasoning abilities
  • Supports popular search algorithms
  • Minimal setup, 2 lines of code

• Smolagents - Minimalist framework for building powerful agents

  23,464 stars · 2,062 forks · 182 contributors · 305 issues · Python · Apache-2.0

  • Code-first approach
  • Multi-agent orchestration
  • LLM provider flexibility
  • Tool integration
  • Hub integration for sharing

• Flowise - Drag & drop UI framework for building LLM flows

  45,777 stars · 22,792 forks · 251 contributors · 696 issues · TypeScript · NOASSERTION

  • Visual flow builder
  • Custom LLM integrations
  • API generation
  • Authentication support
  • Docker deployment

• Pydantic AI - Production-grade agent framework built on Pydantic

  12,956 stars · 1,313 forks · 253 contributors · 343 issues · Python · MIT

  • Type-safe development
  • Multi-model support
  • Structured responses
  • Dependency injection
  • Logfire integration

• Upsonic - Reliable agent framework that support MCP.

  7,658 stars · 712 forks · 32 contributors · 70 issues · Python · MIT

  • Easy-to-activate reliability layers
  • Model Context Protocol (MCP)
  • Integrated Browser Use and Computer Use
  • Isolated environment to run agents
  • Task-Centric Design

• EvoAgentX - Building a Self-Evolving Ecosystem of AI Agents

  1,973 stars · 141 forks · 23 contributors · 11 issues · Python · NOASSERTION

  • Easy Agent and Workflow Customization
  • Workflow Optimization & Self-Evolving
  • Agent/workflow evolution algorithms integrated
  • Execution Toolkit

• Portia AI - Open source framework for predictable, controllable and authenticated agents.

  1,140 stars · 95 forks · 24 contributors · 39 issues · Python · MIT

  • Structured planning
  • Stateful execution
  • Human in the loop controls
  • Tool catalogue with built-in auth
  • MCP support

• Agentic Radar - A security scanner for agentic workflows

  765 stars · 91 forks · 8 contributors · 11 issues · Python · Apache-2.0

  • Scans agentic workflow source code
  • Finds vulnerabilities (CVE & OWASP)
  • Generates interactive reports
  • Suggests remediation steps
  • Supports popular agentic workflows

• AgentFlow - Trainable multi-agent framework with in-the-flow optimization

  818 stars · 91 forks · 3 contributors · 4 issues · Python · MIT

  • Four specialized modules (planner, executor, verifier, generator)
  • Flow-GRPO reinforcement learning
  • Tool integration (math, coding, scientific, search)
  • Stanford research project
  • Performance gains over monolithic approaches

• Mastra - TypeScript AI agent framework with assistants, RAG, and observability

  17,557 stars · 1,193 forks · 228 contributors · 384 issues · TypeScript · NOASSERTION

  • Type-safe development
  • Multi-model support (GPT-4, Claude, Gemini, Llama)
  • Structured responses
  • API generation
  • Tool integration

• Flappy - Production-ready LLM agent SDK

  308 stars · 23 forks · 7 contributors · 10 issues · Rust · Apache-2.0

  • Production-grade reliability
  • Type-safe agent development
  • Multi-language support
  • Performance optimized
  • Developer-friendly SDK

• CleverBee - Deep research assistant agent with web browsing capabilities

  306 stars · 17 forks · 1 contributors · 1 issues · Python · AGPL-3.0

  • Interactive web UI via Chainlit
  • MCP tool support for external integrations
  • Multi-LLM research (configurable LLMs)
  • Automated web browsing with Playwright
  • Token tracking and cost estimation

• RAI - Agentic framework for robotics using ROS 2

  393 stars · 51 forks · 20 contributors · 53 issues · Python · Apache-2.0

  • ROS 2 integration
  • Complex action execution
  • Scenario-based testing
  • Voice interaction support
  • Vendor-agnostic architecture

• Floom - AI gateway and agent/pipeline marketplace

  44 stars · 4 forks · 2 contributors · 0 issues · C# · MIT

  • AI pipeline orchestration
  • Agent marketplace integration
  • Kubernetes-style architecture
  • Streamlined AI integration
  • DevOps-friendly deployment

• CoreAgent - Minimalist agent framework with stateful tools

  25 stars · 3 forks · 2 issues · Python

  • Simplicity-first design
  • Stateful tool support
  • Multi-agent coordination
  • Shared state management
  • Built-in tools library

• Project Alice - Framework and platform for building and deploying agentic workflows

  252 stars · 33 forks · 1 contributors · 1 issues · Python · BSD-3-Clause

  • No-code and coding interface
  • Visual workflow builder
  • Live demo available
  • Workflow deployment platform
  • Alpha stage development

• AgentSquare - Automatic LLM agent search in modular design space

  199 stars · 14 forks · 10 issues · HTML

  • Module evolution and recombination
  • Planning, Reasoning, Tool Use, Memory modules
  • Adaptive agent search framework
  • Unified framework for six agent tasks
  • Tsinghua University research project