Agents tagged “Open source”

VE

Vellum

A personal AI assistant with persistent memory, built-in skills, and phone/voice access, hosted in the cloud or self-hosted.

SI

SimVerified

Open-source AI workspace for building, deploying, and managing AI agents with a Knowledge Base, Tables, and a full REST API

KC

Kilo Code

Open source AI coding agent for VS Code, JetBrains, CLI, and Cloud with 500+ models and no markup

GO

Goose

Open source AI coding agent with a desktop app, CLI, and 70+ MCP extensions across 15+ LLM providers, backed by the Linux Foundation

LA

LangGraph

Open-source, MIT-licensed framework for building stateful, multi-agent AI workflows on cyclical graphs.

OP

OpenClaw

Open source AI assistant that runs on your machine and manages email, calendar, and tasks via WhatsApp or Telegram

AG

AgentsKitVerified

Open-source, MIT-licensed JS/TS toolkit for building AI agents with a 10KB zero-dependency core and 50 built-in integrations.

AG

Agno

An Apache 2.0 Python agent SDK and AgentOS runtime, with a Control Plane you run in your own cloud.

CA

Cartesia

The Stanford SSM-research spinout behind Sonic (TTS) and Ink (STT) — Line, its open-source voice-agent SDK, connects to 100+ LLMs and starts at a genuine $0/month, but the agent layer itself isn't self-hostable.

BO

Botpress

An open-source (MIT) AI agent platform for customer support, with bi-directional MCP support, webchat, WhatsApp and voice channels. Self-host free or use the managed cloud from $0/month.

GK

Google Agent Development Kit

Google's open-source, code-first agent SDK with five language runtimes (Python, TypeScript, Go, Java, Kotlin), native A2A and MCP support, and an optional managed runtime on Google Cloud.

MF

Microsoft Agent Framework

Microsoft's unified, MIT-licensed agent SDK for .NET and Python: the supported successor to AutoGen and Semantic Kernel.

ZE

Zed

The open-source, GPU-native code editor built from scratch by Atom's creators — runs Claude Code, Codex and other agents via the Agent Client Protocol it created.

WA

Warp

An open platform for automating development: an open-source terminal, a standalone coding agent, and cloud-agent factories that orchestrate Claude Code, Codex, Gemini CLI and Warp's own agent across your SDLC.

MA

Mastra

The TypeScript-native agent framework. Agents, durable workflows, memory and observability in one Apache 2.0 package, with an optional managed cloud platform.

LE

Letta

Letta is the open-source framework behind Letta Code, a stateful coding agent whose memory, skills, and identity persist across sessions rather than rebuilding context on every call.

LA

LiveKit Agents

The Apache 2.0 voice-agent framework. 13.1k GitHub stars, self-hostable, and the only open-source pick in this category with fully published pricing.

OC

OpenAI Codex CLI

OpenAI's open-source (Apache-2.0) terminal coding agent, bundled into ChatGPT plans from Free through Pro — Business seats are grandfathered-only.

OP

OpenCode

A free, open-source (MIT) AI coding agent for the terminal, desktop and IDE, with 75+ model providers, built-in subscription login, and a tested model marketplace behind it.

ZO

Zot

A free, MIT-licensed coding-agent harness in one Go binary. Branch any session from any past message, run 30+ model providers from one catalog, and DM the agent from Telegram.

JU

JugglerVerified

A free, open-source visual workbench for AI coding agents: each session is an editable Yjs tree, not a transcript. Single Go binary, no Electron, by the creator of JUCE.

OP

OpenHands

Open source platform for cloud coding agents. Free local OSS, free Individual Cloud tier, self-hosted Enterprise with SSO and RBAC.

AI

Aider

Open-source AI pair programming in your terminal, free under Apache 2.0, built to run against 14 LLM providers

CL

Cline

The open-source coding agent. Bring your own key. Runs in your editor, terminal, and as an SDK, with optional ClinePass for flat-rate open-model access.

DI

Dify

Open-source, visual platform for building production LLM apps and agents, self-host it or run it in the cloud.

GR

GPT Researcher

Open-source autonomous research agent that plans a question, fans out across many sources and writes a cited report. Bring your own LLM and search keys.

LL

LlamaIndex

Open-source data framework for LLM apps, with LlamaParse as the paid agentic OCR for messy documents and LlamaAgents for document workflows.

MA

Microsoft AutoGen

Microsoft's open-source framework for orchestrating conversations between multiple AI agents. Now in maintenance mode.

OS

OpenAI Agents SDK

OpenAI's lightweight open-source framework for building agents in Python and TypeScript, with handoffs, guardrails, tracing and a sandboxed workspace mode for long-running work.

PA

Pydantic AI

The Python AI SDK for type-safe agents, realtime voice, image generation and embeddings, with every model a string swap away.

CR

CrewAI

Open-source Python framework for role-based multi-agent crews, with a hosted build and runtime that adds enterprise governance, native SDKs for the major LLMs, and Ollama via LiteLLM.

LA

LangChain

The most widely-used framework for building LLM apps and agents, with LangGraph for stateful multi-agent control: open-source and free to self-host.

N8

n8n

Source-available workflow automation with native AI-agent nodes and 500+ integrations. Self-hostable free, or on n8n Cloud from €20/month.