8 Best AstrBot Alternatives in 2026 (Open Source)
AstrBot — AI Agent Assistant & development framework that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨. Open-source framework specifically designed for building and deploying AI agents within mainstream instant messaging platforms.
These 8 open-source tools do the same job. They are ordered by how closely they match AstrBot, with live GitHub data so you can see which projects are actively maintained.
| Tool | GitHub stars | Stars / 30d | Last commit |
|---|---|---|---|
| AstrBot(original) | 41.3k | +3,438 | 2026-09-30 |
| LangBot | 18.0k | +1,498 | 2026-09-30 |
| NanoClaw | 30.9k | +2,572 | 2026-09-30 |
| QwenPaw | 35.4k | +2,949 | 2026-09-30 |
| nanobot | 48.7k | +4,058 | 2026-09-30 |
| Open Assistant API | 367 | +1 | 2024-12-14 |
| coze-studio | 21.7k | +1,805 | 2026-07-29 |
| Agent Development Kit (ADK) | 21.7k | +1,807 | 2026-09-30 |
| UI-TARS-desktop | 39.2k | +3,264 | 2026-09-24 |
1. LangBot
Production-grade platform for building agentic IM bots - 生产级多平台智能机器人开发平台/ Agent、知识库编排、插件系统 / Bots for Discord / Slack / LINE / Telegram / WeChat(企业微信, 企微智能机器人,
What sets it apart: Production-ready platform supporting multiple instant messaging platforms with built-in enterprise features like access control, rate limiting, and monitoring.
Best for: Building AI bots for multiple instant messaging platforms; Enterprises needing production-ready bot infrastructure; Developers wanting to connect LLMs to chat applications
2. NanoClaw
A lightweight alternative to OpenClaw that runs in containers for security. Connects to WhatsApp, Telegram, Slack, Discord, Gmail and other messaging apps,, has
What sets it apart: Provides OS-level container isolation for security instead of just application-level permission checks.
Best for: Teams needing secure, isolated AI agents; Users wanting a lightweight, understandable agent framework; Deploying agents across multiple messaging platforms
3. QwenPaw
Your Personal AI Assistant; easy to install, deploy on your own machine or on the cloud; supports multiple chat apps with easily extensible capabilities.
What sets it apart: A Python framework focused on building extensible personal AI assistants deployable across multiple chat interfaces.
Best for: Developers building personal AI assistants; Creating extensible agent systems; Deploying agents across chat platforms
4. nanobot
Ultra-lightweight, open-source, self-hosted personal AI agent framework in Python with WebUI, tools, memory, MCP, multi-agent workflows, automation, and chat ap
What sets it apart: Combines a small, readable core with persistent workflows, memory, and broad chat-native reach for personal, self-hosted agent development.
Best for: Developers seeking a lightweight, self-hosted agent framework; Personal AI automation projects; Integrating agents with multiple chat platforms
5. Open Assistant API
The Open Assistant API is a ready-to-use, open-source, self-hosted agent/gpts orchestration creation framework, supporting customized extensions for LLM, RAG, function call, and tools capabilities. It
What sets it apart: Open-source OpenAI Assistant API compatible service supporting multiple LLMs via One API, with RAG, web search, and local deployment
Best for: self-hosted-openai-assistant-alternative; multi-llm-assistant-apps; enterprise-local-deployment
6. coze-studio
An AI agent development platform with all-in-one visual tools, simplifying agent creation, debugging, and deployment like never before. Coze your way to AI Agen
What sets it apart: Fully open-source core engine derived from an enterprise platform serving millions of developers.
Best for: developers building AI agents visually; low-code AI product development; enterprises customizing agent business logic
7. Agent Development Kit (ADK)
An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
What sets it apart: Applies software development principles and a graph-based runtime to AI agent creation for deterministic execution flows.
Best for: Developers seeking a code-first Python framework; Building complex, orchestrated agent workflows; Teams needing modular and testable agent systems
8. UI-TARS-desktop
The Open-Source Multimodal AI Agent Stack: Connecting Cutting-Edge AI Models and Agent Infra
What sets it apart: Open-source stack combining multimodal GUI agents with vision and extensive MCP tool integration for human-like task completion.
Best for: multimodal agent development; GUI automation tasks; browser/computer control automation
FAQ
- What are the best alternatives to AstrBot?
- The closest open-source alternatives to AstrBot are LangBot, NanoClaw and QwenPaw, followed by nanobot, Open Assistant API and coze-studio. They are ranked by how closely they match what AstrBot does.
- Which AstrBot alternative is the most popular?
- nanobot has the most GitHub stars among AstrBot alternatives, with 48,701 stars.
- Which AstrBot alternative is the most actively maintained?
- By recent activity, nanobot (1,360 commits in the last 90 days) is the most actively developed alternative.