Best open-source AI agent libraries & SDKs

Open-source frameworks and platforms for building LLM apps and AI agents.

Filters · 2 Agents & frameworks, Library / SDK

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Personal 30Enterprise 32

Purpose

AI & LLM tooling 140Agents & frameworks 37Local inference 10RAG & vector DBs 30Coding assistants 4Evals & observability 7Agent skills 4MCP servers 9Developer tools 183Web frameworks 101Databases & backends 17Editors & IDEs 3API tools 13Self-hosted apps 6Notes & docs 6Automation 20Data & analytics 25Infra & DevOps 5Security & identity 5Communication 8Media & photos 24Design & creative 54

Runs on

Web 21Docker / self-host 44Desktop 9Mobile 0CLI 33Library / SDK 37Extension / plugin 1

License

Permissive 32Copyleft 0Source-available 0Other / custom 5

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Has live demo 0Commit in last 90 days 36

37 projects · showing 1–20

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B

Browser Usebrowser-use/browser-use

Let AI agents use a web browserPersonalEnterpriseAgents & frameworksAutomationLibrary / SDK★ 117kMITcommit 2 days ago

89worth

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L

LlamaIndexrun-llama/llama_index

Data framework for LLM applications and agentsEnterpriseAgents & frameworksRAG & vector DBsLibrary / SDK★ 52kMITcommit 3 days ago

85worth

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g

gpt-researcherassafelovic/gpt-researcher

Autonomous deep research agent for web and local documentsPersonalAgent skillsAgents & frameworksMCP serversRAG & vector DBsWeb★ 30kApache-2.0commit last week

85worth

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T

TradingAgentsTauricResearch/TradingAgents

Multi-agent LLM framework for financial trading researchPersonalAgents & frameworksData & analyticsLibrary / SDK★ 110kApache-2.0commit 23 hours ago

84worth

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M

Mem0mem0ai/mem0

Memory layer for AI agentsPersonalEnterpriseAgents & frameworksDocker / self-hostLibrary / SDK★ 67kApache-2.0commit 3 days ago

84worth

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L

LangChainlangchain-ai/langchain

Framework for building LLM-powered applicationsEnterpriseAgents & frameworksLibrary / SDK★ 147kMITcommit 2 days ago

83worth

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Piearendil-works/pi

Minimal agent toolkit and coding agent CLIPersonalAgents & frameworksCoding assistantsCLILibrary / SDK★ 112kMITcommit 19 hours ago

82worth

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H

Hindsightvectorize-io/hindsight

Agent memory that learnsPersonalEnterpriseAgents & frameworksDocker / self-hostLibrary / SDK★ 45kMITcommit 2 days ago

82worth

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D

DSPystanfordnlp/dspy

Program language models instead of prompting themPersonalEnterpriseAgents & frameworksLibrary / SDK★ 38kMITcommit 21 hours ago

82worth

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C

CopilotKitCopilotKit/CopilotKit

Frontend stack for agents and generative UIPersonalEnterpriseWeb frameworksAgents & frameworksLibrary / SDK★ 38kMITcommit 2 days ago

82worth

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S

Semanticasemantica-agi/semantica

Graph-native context infrastructure for AIEnterpriseAgents & frameworksLibrary / SDK★ 14kMITcommit yesterday

82worth

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C

CrewAIcrewAIInc/crewAI

Orchestrate role-playing AI agent crewsPersonalEnterpriseAgents & frameworksLibrary / SDK★ 59kMITcommit 2 days ago

81worth

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H

Haystackdeepset-ai/haystack

AI orchestration for production LLM appsEnterpriseAgents & frameworksRAG & vector DBsLibrary / SDK★ 27kApache-2.0commit 2 days ago

81worth

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LangGraphlangchain-ai/langgraph

Build resilient, stateful agentsPersonalEnterpriseAgents & frameworksLibrary / SDK★ 43kMITcommit yesterday

80worth

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A

Agnoagno-agi/agno

Build, run and manage agent platformsPersonalEnterpriseAgents & frameworksLibrary / SDK★ 43kApache-2.0commit 2 days ago

80worth

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C

ComposioComposioHQ/composio

Toolkits and auth for AI agentsPersonalEnterpriseAgents & frameworksMCP serversLibrary / SDK★ 30kMITcommit 2 days ago

80worth

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P

Pipecatpipecat-ai/pipecat

Framework for voice agentsPersonalEnterpriseAgents & frameworksCommunicationLibrary / SDK★ 16kBSD-2-Clausecommit yesterday

80worth

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L

LangChain4jlangchain4j/langchain4j

LLM apps on the JVMEnterpriseAgents & frameworksRAG & vector DBsLibrary / SDK★ 13kApache-2.0commit 2 days ago

80worth

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H

HyperFramesheygen-com/hyperframes

Write HTML, render videoPersonalEnterpriseAgents & frameworksMedia & photosLibrary / SDK★ 56kApache-2.0commit 18 hours ago

79worth

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U

Univerdream-num/univer

Office runtime for AI agentsPersonalEnterpriseNotes & docsAgents & frameworksWebLibrary / SDK★ 22kApache-2.0commit 18 hours ago

79worth

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Personal · 30Enterprise · 32