Awesome LLM Agent Frameworks A curated list of open-source frameworks, runtimes and tooling for building LLM
agents. Metrics refresh weekly. (Last updated: 2026-09-20)
To suggest a project, see CONTRIBUTING.md — entries live in
data/frameworks/, and this file is generated from them.
Project
Stars
Language
License
Updated
Description
OpenClaw 390,106
TypeScript
Other
2026-09
Personal AI assistant that runs on any platform
LangChain 146,696
Python
MIT
2026-09
Compose LLM apps from modular pieces
Smolagents 29,407
Python
Apache-2.0
2026-08
Minimal agents that write code to act
Semantic Kernel 28,580
C#
MIT
2026-09
Plugin-based AI integration for .NET and Python
Mastra 28,193
TypeScript
Other
2026-09
TypeScript agents with RAG and observability
Google ADK 21,578
Python
Apache-2.0
2026-09
Code-first agents that deploy to Vertex AI
Pydantic AI 20,061
Python
MIT
2026-09
Type-safe agents on Pydantic with structured output
Tambo 11,182
TypeScript
MIT
2026-09
React components rendered by AI at runtime
Hive 11,058
Python
Apache-2.0
2026-09
Multi-agent harness aimed at production
Openwork 10,894
—
—
2026-08
Open-source AI coworker platform
Upsonic 7,959
Python
MIT
2026-06
Agents with MCP and isolated execution
Atomic Agents 6,252
Python
MIT
2026-08
Compose agents from small interchangeable parts
OpenAgent 5,628
Go
Apache-2.0
2026-09
Personal assistant built on LLM, RAG and agent loops
AG2 4,940
Python
Apache-2.0
2026-09
Community fork of AutoGen, now an AgentOS
AGiXT 3,216
Python
MIT
2026-07
Multi-provider agent platform with command chaining
Oh My Hermes 2,804
Python
MIT
2026-09
Harness with optimized tools and memory
trpc-agent-go 1,808
Go
Apache-2.0
2026-09
Go framework for agents with graph workflows
ConnectOnion 1,481
Python
Apache-2.0
2026-09
Python framework focused on agent collaboration
Ouroboros 1,350
Python
MIT
2026-09
Agent runtime with reviewed self-modification
LightAgent 1,223
Python
Apache-2.0
2026-09
Lightweight Python agents with tools and memory
Agentlas OS 1,085
Python
Apache-2.0
2026-09
Specialist agent hub with temporary orchestrators
ix 1,046
Python
MIT
2026-01
Autonomous agents with a visual workflow builder
Promptise Foundry 873
Python
Apache-2.0
2026-09
Agentic framework with controllable reasoning
Aeon 742
Shell
MIT
2026-09
Runs unattended on GitHub Actions, self-healing
Octochains 372
Python
Other
2026-08
Parallel isolated reasoning with an aggregator
Axar 163
TypeScript
Apache-2.0
2026-02
Minimal TypeScript agents with Zod validation
Octomind 139
Rust
Apache-2.0
2026-09
Model-agnostic runtime with specialist agents
Neurolink 133
TypeScript
MIT
2026-09
One interface across 12+ LLM providers
NarraNexus 84
Python
Apache-2.0
2026-09
Builds nexuses where agent intelligence emerges
ProtoLink 82
Python
MIT
2026-09
Python agents with native A2A communication
ShaprAI 73
Python
MIT
2026-07
Sharpens raw models into principled agents
TrashClaw 70
Python
MIT
2026-08
Zero-dependency local agent for old hardware
KodeAgent 40
Python
Apache-2.0
2026-08
Minimal agent engine, deliberately small
OpenProgram —
—
—
—
Agents create and refine their own workflows
Multi-Agent Orchestration
Project
Stars
Language
License
Updated
Description
MetaGPT 70,513
Python
MIT
2026-01
Agents role-play a software company
AutoGen 61,065
Python
CC-BY-4.0
2026-04
Conversational multi-agent systems
CrewAI 58,790
Python
MIT
2026-09
Orchestrate role-playing agent crews
CAMEL 17,745
Python
Apache-2.0
2026-09
Role-playing agents for studying agent society
PraisonAI 9,080
Python
MIT
2026-09
Multi-agent workflows with self-reflection
OpenAgents 4,117
TypeScript
Apache-2.0
2026-09
Agent networks over WebSocket, gRPC, MCP and A2A
hcom 507
Rust
MIT
2026-09
Agents message and spawn each other in terminals
Markus 194
TypeScript
Apache-2.0
2026-09
Agents coordinate and review each other's work
CommonGround Kernel 150
Python
Apache-2.0
2026-05
Postgres-backed shared substrate for agent teams
Flock 120
Python
MIT
2026-09
Declarative agents via blackboard architecture
Quorum 116
Python
Other
2026-01
Structured multi-agent debate in the terminal
OpenAcme 87
TypeScript
MIT
2026-07
Role-specialized agents that self-organize
Hivekeep 61
TypeScript
MIT
2026-09
Self-hosted team of persistent personal agents
auto-co 43
TypeScript
MIT
2026-06
14 agents run a company in a continuous loop
Tools that run, sandbox or coordinate command-line coding agents such as Claude Code,
Codex and Gemini CLI.
Project
Stars
Language
License
Updated
Description
Atomic Agent 2,522
TypeScript
MIT
2026-09
Local-first CLI agent for open-weight models
Agent Teams 2,145
TypeScript
AGPL-3.0
2026-09
Desktop app running coding-agent teams across CLIs
Bernstein 1,211
Python
Apache-2.0
2026-09
Deterministic orchestrator for 40+ CLI agents
SwarmClaw 677
TypeScript
MIT
2026-06
Self-hosted runtime for multi-agent CLI work
h5i 648
Rust
Apache-2.0
2026-09
Runs agents in sandboxes, merges the verified result
Dorothy 347
TypeScript
MIT
2026-07
Desktop app to run several CLI agents at once
ClawFleet 174
Go
MIT
2026-04
Deploys isolated agent instances via Docker
OpenPaw 167
TypeScript
MIT
2026-05
Turns Claude Code into an assistant with 38 skills
ORCH 163
TypeScript
MIT
2026-08
One CLI to manage a team of agents on tasks
OpenHermit 78
TypeScript
MIT
2026-09
Deploys agent fleets as long-running services
5dive 60
Shell
MIT
2026-09
Run a company of named agents on your own server
Agon 48
Python
MIT
2026-09
Claude Code plugin for autonomous research loops
TeamHero 36
JavaScript
MIT
2026-04
Manage agents like a team, with structured roles
OpenSepia 34
Python
MIT
2026-03
Nine Claude agents running as an agile team
Low-Code & Visual Builders
Project
Stars
Language
License
Updated
Description
Dify 156,510
TypeScript
Other
2026-09
Visual orchestration for LLM apps and agents
Kiln AI 5,077
Python
Other
2026-09
Desktop app for evals, RAG and fine-tuning
Heym 1,230
Python
Other
2026-09
Visual builder for agentic workflow automation
Project
Stars
Language
License
Updated
Description
LlamaIndex 52,237
Python
MIT
2026-09
Connects LLMs to 160+ data sources
Haystack 26,559
Python
Apache-2.0
2026-09
Composable pipelines for search and RAG
Project
Stars
Language
License
Updated
Description
Hindsight 23,970
Python
MIT
2026-09
Agent memory with retain, recall and reflect
Caura 527
Python
Apache-2.0
2026-09
Governed shared memory for fleets of agents
AnimaWorks 262
Python
Apache-2.0
2026-09
Organization-as-code with brain-inspired memory
OMEGA 217
Python
Apache-2.0
2026-09
Persistent memory for coding agents over MCP
Inite Brain 39
TypeScript
AGPL-3.0
2026-09
Bitemporal knowledge graph as agent memory
Perseus —
—
—
—
Resolves verified workspace state before a call
Project
Stars
Language
License
Updated
Description
Mem0 65,672
Python
Apache-2.0
2026-09
Memory layer that persists across agent sessions
AgentField 2,567
Go
Apache-2.0
2026-09
Agent identity and RPC using W3C DIDs
openma 286
TypeScript
Apache-2.0
2026-09
Self-hosted Managed Agents API implementation
Safety, Security & Evaluation
Project
Stars
Language
License
Updated
Description
Agentic Radar 1,054
Python
Apache-2.0
2025-11
Scans agent workflows for CVE and OWASP issues
Cordum 508
Go
Other
2026-09
Evaluates policy before an agent action dispatches
Greywall 298
Go
Apache-2.0
2026-08
Deny-by-default sandbox for coding agents
Kitaru 292
Python
Apache-2.0
2026-09
Record, replay and improve agents in production
RapidFire AI 170
JavaScript
Apache-2.0
2026-09
Experiment harness for RAG and fine-tuning runs
APort Guardrails 25
Shell
Other
2026-09
Pre-action authorization policy for agent calls
Project
Stars
Language
License
Updated
Description
DeepAnalyze 4,638
Python
MIT
2026-09
Autonomous data science without fixed workflows
Darkmoon 953
Python
GPL-3.0
2026-09
Autonomous pentesting across web, cloud and AD
RAI 589
Python
Apache-2.0
2026-09
Agent framework for robotics, built on ROS 2
CleverBee 302
Python
AGPL-3.0
2026-01
Deep research agent that browses with Playwright
text2sql-framework 157
Python
MIT
2026-08
Text-to-SQL agent that explores schema, not RAG
GenoMAS 134
Python
MIT
2026-04
Multi-agent pipeline for genomics data analysis
wechat-mac-rpa 105
Python
MIT
2026-09
Visual agent automating WeChat on macOS
Omni-Rewriter 87
Python
Apache-2.0
2026-08
Prompt expansion for image and video generation
DNA Claude Analysis 57
Python
MIT
2026-03
Explore your genome in natural language
everyrow 55
Python
MIT
2026-09
Run LLM agents over pandas DataFrames
Inalpha 38
Python
AGPL-3.0
2026-09
Quant agents that pick factors that still work
Project
Stars
Language
License
Updated
Description
EvoAgentX 3,345
Python
Other
2026-08
Agent workflows that evolve and self-optimize
AgentFlow 2,045
Python
MIT
2026-02
Trainable multi-agent system using Flow-GRPO
Cache-to-Cache 632
Python
Apache-2.0
2026-09
Agents exchange meaning directly via KV-cache
AgentSquare 231
HTML
—
2025-11
Automatic search over modular agent designs
GNAP 86
—
MIT
2026-03
Git-native protocol draft for agent coordination
agent-opt 73
Python
Apache-2.0
2026-06
Optimizes prompts and agent workflows
AVP 27
Python
Apache-2.0
2026-04
Transfers KV-cache between agents, not text
Autonomous Agents (2023 wave) The 2023 autonomous-agent wave. Listed for their influence; several are no longer
actively developed.
Project
Stars
Language
License
Updated
Description
AutoGPT 187,450
Python
Other
2026-09
The original autonomous GPT-4 agent loop
OpenManus 58,351
Python
MIT
2026-08
General-purpose agent, no invite code needed
BabyAGI 22,351
Python
—
2026-01
Minimal task-driven autonomous agent loop
XAgent 8,549
Python
Apache-2.0
2026-07
Autonomous agent with planning and tool learning
Archived, or no push in over 12 months. Kept because they are widely referenced and
readers benefit from knowing their status.
Project
Stars
Language
License
Updated
Description
Flowise 55,468
TypeScript
Other
2026-08 (archived)
Drag-and-drop builder for LLM flows
SuperAGI 17,685
Python
MIT
2025-01
Autonomous agent platform with a tool framework
OpenAgents (XLang) 4,861
Python
Apache-2.0
2024-11
Platform for data, web and coding agents
Agent Protocol 1,455
Python
MIT
2025-04
Standard interface for agent interoperability
AI Legion 1,436
TypeScript
MIT
2025-05
TypeScript swarm of autonomous agents
CC0 1.0 Universal — to the extent possible under law, the contributors
have waived all copyright and related rights to this work.
