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Open Source AI Agent Platforms

A curated collection of the best open source platforms for creating and managing autonomous AI agents.

Favicon of Parlant

Parlant

AI
Structured control layer for customer-facing AI agents

  • Stars

    18,256

  • Last commit

    1 month ago

  • License

    Apache-2.0
A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.

Open Source Alternative to:

Favicon of Voiceflow
Voiceflow
Favicon of Hermes Agent

Hermes Agent

AI
Desktop AI agent with persistent memory across platforms

  • Stars

    233,645

  • Last commit

    2 hours ago

  • License

    MIT
Cross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.

Open Source Alternative to:

Favicon of Zo Computer
Zo Computer
Favicon of Dify

Dify

AI
Build and deploy AI agents and RAG pipelines visually

  • Stars

    153,085

  • Last commit

    2 hours ago

  • License

    Unknown
Visual platform for building agentic workflows, RAG pipelines, and LLM-powered apps. Supports hundreds of models, MCP integration, and self-hosted deployment.

Open Source Alternative to:

Favicon of Retool
Retool
Favicon of Langflow

Langflow

AI
Visual builder for AI agents and RAG pipelines

  • Stars

    153,524

  • Last commit

    2 hours ago

  • License

    MIT
Build, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.

Open Source Alternative to:

Favicon of Voiceflow
Voiceflow
Favicon of LobeChat

LobeChat

AI
Manage, build, and run AI agent teams around the clock

  • Stars

    81,875

  • Last commit

    2 hours ago

  • License

    Unknown
A collaborative platform to create, schedule, and operate AI agents that handle long-running tasks, team workflows, and automated jobs without constant oversight.

Open Source Alternative to:

Favicon of Claude
Claude
Favicon of Multica

Multica

AI
Project management for teams mixing humans and AI agents

  • Stars

    47,117

  • Last commit

    2 hours ago

  • License

    Unknown
Open-source platform that manages coding agents as team members, with task queues, skill libraries, runtime monitoring, and a unified activity feed.

Open Source Alternative to:

Favicon of Linear
Linear
Favicon of LibreChat

LibreChat

AI
One interface for all your AI models and conversations

  • Stars

    42,292

  • Last commit

    2 hours ago

  • License

    MIT
Chat with multiple AI providers through a single self-hostable interface, with support for custom agents, file uploads, plugins, and multi-user access control.

Open Source Alternative to:

Favicon of Claude
Claude
Favicon of Agno

Agno

AI
Model-agnostic platform for building intelligent AI agents

  • Stars

    41,814

  • Last commit

    2 hours ago

  • License

    Apache-2.0
Open-source platform that enables developers to create, deploy and monitor AI agents with built-in memory, knowledge integration, and external tool connectivity.

Open Source Alternative to:

Favicon of Kiro
Kiro
Favicon of CopilotKit

CopilotKit

AI
Build AI copilots for your product in hours, not months

  • Stars

    36,919

  • Last commit

    2 hours ago

  • License

    MIT
Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

Open Source Alternative to:

Favicon of LangChain
LangChain
Favicon of Flowise AI

Flowise AI

AI
Visual builder for AI agents and LLM workflows

  • Stars

    55,384

  • Last commit

    8 days ago

  • License

    Apache-2.0
Open source platform for building AI agents, chatbots, and multi-agent systems using a drag-and-drop interface, with support for 100+ LLMs and RAG.

Open Source Alternative to:

Favicon of n8n
n8n
Favicon of Letta

Letta

AI
Build and deploy AI agents with advanced memory

  • Stars

    24,326

  • Last commit

    5 days ago

  • License

    Apache-2.0
Letta is an open-source platform for creating AI agents with built-in memory, reasoning, and support for thousands of tools.

Open Source Alternative to:

Favicon of Perplexity
Perplexity
Favicon of Suna

Suna

AI
AI agent that autonomously handles real-world tasks

  • Stars

    20,125

  • Last commit

    2 hours ago

  • License

    Apache-2.0
Open source AI assistant that executes complex tasks from market research to travel planning through natural conversation, with full transparency and community-driven development.

Open Source Alternative to:

Favicon of Manus
Manus
Favicon of LiveKit

LiveKit

AI
Full-stack platform for voice, video, and physical AI agents

  • Stars

    20,461

  • Last commit

    10 hours ago

  • License

    Apache-2.0
Build, test, deploy, and scale voice and video AI agents with an open source framework, inference gateway, telephony integrations, and full observability.

Open Source Alternative to:

Favicon of Voiceflow
Voiceflow
Favicon of Botpress

Botpress

AI
Build powerful AI agents with cutting-edge LLM technology

  • Stars

    14,874

  • Last commit

    11 hours ago

  • License

    MIT
A comprehensive platform for creating AI agents with intuitive tools, extensive integrations, and enterprise-grade features powered by the latest language models.

Open Source Alternative to:

Favicon of Manychat
Manychat
Favicon of Nango

Nango

Build product integrations with 500+ APIs in hours

  • Stars

    11,526

  • Last commit

    9 hours ago

  • License

    Elastic-2.0
Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of Rivet

Rivet

Build stateful backends with in-memory actors

  • Stars

    6,073

  • Last commit

    13 hours ago

  • License

    Apache-2.0
Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.

Open Source Alternative to:

Favicon of Cloudflare Workers
Cloudflare Workers
Favicon of ACI.dev

ACI.dev

AI
Build reliable AI agents with unified tool integration

  • Stars

    4,883

  • Last commit

    3 months ago

  • License

    Apache-2.0
Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of ByteChef

ByteChef

AI
Build AI agents and automate complex workflows seamlessly

  • Stars

    992

  • Last commit

    19 hours ago

  • License

    Apache-2.0
Create intelligent automation workflows combining AI agents with your favorite apps and services. Connect, automate, and scale your operations without complex coding.

Open Source Alternative to:

Favicon of n8n
n8n
Favicon of AgentOS

AgentOS

AI
TypeScript framework for building autonomous AI agents

  • Stars

    615

  • Last commit

    14 days ago

  • License

    Apache-2.0
Open-source TypeScript runtime for autonomous AI agents with cognitive memory, multi-agent orchestration, runtime tool generation, and support for 21 LLM providers.
Favicon of Giselle

Giselle

AI
Build and deploy AI agents through visual workflows

  • Stars

    554

  • Last commit

    18 days ago

  • License

    Apache-2.0
Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.
Favicon of CodeZero

CodeZero

AI
Build complex automations without code, deploy anywhere with full control

  • Stars

    53

  • Last commit

    1 month ago

  • License

    MIT
Open-source no-code automation platform for logistics, chatbots, and AI agents. Deploy on cloud, self-host, or hybrid with complete data sovereignty and modular workflow design.

Open Source Alternative to:

Favicon of Azure Logic Apps
Azure Logic Apps
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