best of 2026

Best open-source AI agents

22 tools with a public source repository we verified is live.

  1. Activepieces logoActivepieces

    Chat, agents, flows, tables, and 770+ apps in one workspace, so your whole team works with AI in the tools they already use. Open source at the core.

    Automation & workflow · Free plan: Yes · Open source: Yes · Free tier · checked 2026-11-05

  2. Browser Use logoBrowser Use

    Browser Use is the cloud browser for AI agents. Run web agents that finish the task, or connect your own agent to stealth browsers at $0.02 an hour.

    Browser & computer-use agents · Free plan: Yes · Open source: Yes · from $5/gb · checked 2026-11-05

  3. Skyvern logoSkyvern

    Skyvern automates browser workflows with AI. No brittle selectors, no maintenance. Automate logins, form fills, data extraction, and more across any website.

    Browser & computer-use agents · Free plan: Yes · Open source: Yes · checked 2026-11-05

  4. Stagehand logoStagehand

    Stagehand is the SDK for browser agents. Playwright-style API, self-healing selectors, and TypeScript, Python, and Go, running as an extension inside the browser so remote browsers are as fast as local.

    Browser & computer-use agents · Free plan: Yes · Open source: Yes · checked 2026-11-05

  5. Steel logoSteel

    Steel is an open source browser API that lets you control fleets of browsers in the cloud.

    Browser & computer-use agents · Free plan: Yes · Open source: Yes · Free tier · from $250/mo · checked 2026-11-05

  6. AAider

    Aider - AI Pair Programming in Your Terminal

    Coding agents · Free plan: Yes · Open source: Yes · checked 2026-11-05

  7. Cline logoCline

    Open-source AI coding agent with Plan/Act modes, MCP integration, and terminal-first workflows. Trusted by 11M+ developers worldwide.

    Coding agents · Free plan: Yes · Open source: Yes · checked 2026-11-05

  8. OpenHands logoOpenHands

    Build and run AI coding agents with OpenHands. Start locally, automate engineering workflows, use any model, and scale with enterprise controls.

    Coding agents · Free plan: Yes · Open source: Yes · from $500/mo · checked 2026-11-05

  9. AutoGen logoAutoGen

    Top-level documentation for AutoGen, a framework for developing applications using AI agents

    Agent frameworks · Free plan: Yes · Open source: Yes · checked 2026-11-05

  10. CCrewAI

    The Leading Multi-Agent Platform

    Agent frameworks · Free plan: Yes · Open source: Yes · checked 2026-11-05

  11. LangGraph logoLangGraph

    Control agent workflows with LangGraph: durable execution, memory, streaming, and human-in-the-loop.

    Agent frameworks · Free plan: Yes · Open source: Yes · Free tier · checked 2026-11-05

  12. LlamaIndex logoLlamaIndex

    LlamaParse is the world's best agentic OCR for processing complex documents with messy tables, charts, images, and more with human-level accuracy.

    Agent frameworks · Free plan: Yes · Open source: Yes · Free tier · from $500/mo · checked 2026-11-05

  13. Mastra logoMastra

    Ship AI agents that reason, remember, and act in TypeScript. Mastra provides memory, tools, MCP, and observability to go from prototype to production.

    Agent frameworks · Free plan: Yes · Open source: Yes · checked 2026-11-05

  14. OOpenAI Agents SDK

    OpenAI Agents SDK

    Agent frameworks · Free plan: Yes · Open source: Yes · checked 2026-11-05

  15. Pydantic AI logoPydantic AI

    How Python does AI: agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

    Agent frameworks · Free plan: Yes · Open source: Yes · checked 2026-11-05

  16. Aria Icons logoAria Icons

    Search, customize, and export 340,000+ SVG icons — plus a remote MCP server for AI assistants.

    MCP servers & tooling · Free plan: Yes · Open source: Yes · checked 2026-11-05

  17. Composio logoComposio

    Put the AI you already use to work across 1,500+ apps. Composio gives it the tools to find information, update your apps and finish the job, with you in control.

    MCP servers & tooling · Free plan: Yes · Open source: Yes · Free tier · from $29/mo · checked 2026-11-05

  18. GitHub MCP Server logoGitHub MCP Server

    GitHub's official MCP Server. Contribute to github/github-mcp-server development by creating an account on GitHub.

    MCP servers & tooling · Free plan: Yes · Open source: Yes · checked 2026-11-05

  19. Model Context Protocol logoModel Context Protocol

    What is the Model Context Protocol (MCP)? - Model Context Protocol

    MCP servers & tooling · Free plan: Yes · Open source: Yes · checked 2026-11-05

  20. Playwright MCP logoPlaywright MCP

    Playwright MCP server. Contribute to microsoft/playwright-mcp development by creating an account on GitHub.

    MCP servers & tooling · Free plan: Yes · Open source: Yes · checked 2026-11-05

  21. GPT Researcher logoGPT Researcher

    GPT Researcher is an open source autonomous AI research agent that produces deep research reports from many sources, with inline citations. #1 on Carnegie Mellon's DeepResearchGym benchmark.

    Research agents · Free plan: Yes · Open source: Yes · checked 2026-11-05

  22. Pipecat logoPipecat

    Open-source framework for voice and multimodal conversational AI.

    Voice agents · Free plan: Yes · Open source: Yes · checked 2026-11-05

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