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* feat: add web_page_bot adapter and embed widget - Implemented a new `web_page_bot` adapter for embedding chat widgets on websites. - Created a new YAML configuration file for `web_page_bot` with necessary metadata and execution details. - Developed the `WebPageBotAdapter` class to handle message events and manage listeners. - Added a JavaScript widget for embedding the chat interface, including styles and functionality for user interaction. - Updated WebSocket handling to support the new bot adapter and manage connections. - Enhanced the bot form to include pipeline UUID and adapter configuration in the system context. - Introduced a new dynamic form item type for embed code in the form entity. * feat(embed): add feedback submission and image upload functionality to embed widget * feat(embed): add reset session endpoint for embed widget and improve WebSocket image handling * feat(widget): remove typing indicator display logic from message handling * fix(embed): security hardening for embed widget - Add UUID format validation for pipeline_uuid parameters - Add Cloudflare Turnstile integration for bot protection (optional) - Add HMAC-signed session tokens for /messages, /reset, /feedback endpoints - Sanitize error responses (remove internal exception details) - Sanitize base_url before JS injection - Fix XSS in markdown link rendering (only allow http/https protocols) - Fix XSS in image URL extraction (only allow http/https/data protocols) - Escape widget title in embed code snippet (HTML entity encoding) - Remove class-level mutable default in WebPageBotAdapter - Remove duplicate config line and console.log in widget.js - Add turnstile_site_key and turnstile_secret_key config fields * style: fix prettier formatting for chained replace calls * fix(embed): declare listeners as Pydantic field in WebPageBotAdapter The base class is a Pydantic BaseModel, so listeners must be declared as a field (with default_factory) rather than assigned in __init__. Also keep the __init__ to convert positional args to keyword args for Pydantic compatibility with botmgr's calling convention. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * refactor(embed): use bot_uuid instead of pipeline_uuid in all embed URLs Replace pipeline_uuid with bot_uuid in all user-facing embed widget URLs so internal pipeline identifiers are never exposed. The server resolves bot_uuid to the owning web_page_bot, validates it is enabled and has a pipeline bound, then routes internally using pipeline_uuid. Add a dedicated WebSocket endpoint at /api/v1/embed/<bot_uuid>/ws/connect instead of reusing the pipeline debug path. Wire WebPageBotAdapter to proxy reply_message calls through the WebSocket adapter so dashboard shows the correct adapter name while replies are still delivered. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * docs(embed): improve Turnstile config field descriptions Add guidance on where to obtain the keys (Cloudflare dashboard) and clarify that leaving them empty disables the feature. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * feat(embed): add multi-language support for embed widget Add a language selector to the web_page_bot config with 8 locales (en, zh-Hans, zh-Hant, ja, es, ru, th, vi). The backend injects the locale into widget.js which uses a built-in i18n dictionary for all user-facing strings (welcome message, placeholder, aria labels, error messages, powered-by footer). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(embed): use correct select option format for language selector Options must use name/label (i18n object) format, not value/label (plain string), to match the dynamic form renderer. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * style(embed): adjust footer padding and link to langbot.app Increase footer padding for more breathing room from the bottom edge. Change powered-by link from GitHub repo to langbot.app. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(embed): ignore Enter key during IME composition Check e.isComposing before treating Enter as send, so confirming an IME candidate (e.g. Chinese/Japanese input) does not also fire the message. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(embed): center bubble icon and fill entire circle Make .lb-chat-icon span fill the full bubble area so the logo image covers the circle completely without exposing the blue background. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * feat(embed): add bubble icon presets selector Add 6 bubble icon options (LangBot logo, chat bubble, robot, headset, sparkle, message) configurable in the bot settings. Icons are inline SVGs in widget.js, selected via a config field injected by the backend. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> --------- Co-authored-by: RockChinQ <rockchinq@gmail.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Production-grade platform for building agentic IM bots.
Quickly build, debug, and ship AI bots to Slack, Discord, Telegram, WeChat, and more.
English / 简体中文 / 繁體中文 / 日本語 / Español / Français / 한국어 / Русский / Tiếng Việt
Website ｜ Features ｜ Docs ｜ API ｜ Cloud ｜ Plugin Market ｜ Roadmap
What is LangBot?
LangBot is an open-source, production-grade platform for building AI-powered instant messaging bots. It connects Large Language Models (LLMs) to any chat platform, enabling you to create intelligent agents that can converse, execute tasks, and integrate with your existing workflows.
Key Capabilities
- AI Conversations & Agents — Multi-turn dialogues, tool calling, multi-modal support, streaming output. Built-in RAG (knowledge base) with deep integration to Dify, Coze, n8n, Langflow.
- Universal IM Platform Support — One codebase for Discord, Telegram, Slack, LINE, QQ, WeChat, WeCom, Lark, DingTalk, KOOK.
- Production-Ready — Access control, rate limiting, sensitive word filtering, comprehensive monitoring, and exception handling. Trusted by enterprises.
- Plugin Ecosystem — Hundreds of plugins, event-driven architecture, component extensions, and MCP protocol support.
- Web Management Panel — Configure, manage, and monitor your bots through an intuitive browser interface. No YAML editing required.
- Multi-Pipeline Architecture — Different bots for different scenarios, with comprehensive monitoring and exception handling.
→ Learn more about all features
Quick Start
☁️ LangBot Cloud (Recommended)
LangBot Cloud — Zero deployment, ready to use.
One-Line Launch
uvx langbot
Requires uv. Visit http://localhost:5300 — done.
Docker Compose
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose up -d
One-Click Cloud Deploy
More options: Docker · Manual · BTPanel · Kubernetes
Supported Platforms
| Platform | Status | Notes |
|---|---|---|
| Discord | ✅ | |
| Telegram | ✅ | |
| Slack | ✅ | |
| LINE | ✅ | |
| ✅ | Personal & Official API | |
| WeCom | ✅ | Enterprise WeChat, External CS, AI Bot |
| ✅ | Personal & Official Account | |
| Lark | ✅ | |
| DingTalk | ✅ | |
| KOOK | ✅ | |
| Satori | ✅ |
Supported LLMs & Integrations
| Provider | Type | Status |
|---|---|---|
| OpenAI | LLM | ✅ |
| Anthropic | LLM | ✅ |
| DeepSeek | LLM | ✅ |
| Google Gemini | LLM | ✅ |
| xAI | LLM | ✅ |
| Moonshot | LLM | ✅ |
| Zhipu AI | LLM | ✅ |
| Ollama | Local LLM | ✅ |
| LM Studio | Local LLM | ✅ |
| Dify | LLMOps | ✅ |
| MCP | Protocol | ✅ |
| SiliconFlow | Gateway | ✅ |
| Aliyun Bailian | Gateway | ✅ |
| Volc Engine Ark | Gateway | ✅ |
| ModelScope | Gateway | ✅ |
| GiteeAI | Gateway | ✅ |
| CompShare | GPU Platform | ✅ |
| PPIO | GPU Platform | ✅ |
| ShengSuanYun | GPU Platform | ✅ |
| 接口 AI | Gateway | ✅ |
| 302.AI | Gateway | ✅ |
Why LangBot?
| Use Case | How LangBot Helps |
|---|---|
| Customer Support | Deploy AI agents to Slack/Discord/Telegram that answer questions using your knowledge base |
| Internal Tools | Connect n8n/Dify workflows to WeCom/DingTalk for automated business processes |
| Community Management | Moderate QQ/Discord groups with AI-powered content filtering and interaction |
| Multi-Platform Presence | One bot, all platforms. Manage from a single dashboard |
Live Demo
Try it now: https://demo.langbot.dev/
- Email:
demo@langbot.app - Password:
langbot123456
Note: Public demo environment. Do not enter sensitive information.
Community
Star History
Contributors
Thanks to all contributors who have helped make LangBot better: