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* feat(models): add provider model scanning * fix: double close button * feat: update plugin module * fix(monitoring): WeChat Work feedback recording bugs (#2108) * fix(monitoring): fix WeChat Work feedback recording bugs - Fix feedback events silently dropped when stream session expires: dispatch feedback handlers regardless of session availability - Fix IntegrityError on repeated feedback (like→dislike) for same message: implement UPSERT logic in record_feedback() - Fix cancel feedback (type=3) not removing records: add delete logic - Fix inaccurate_reasons validation error: convert int reason codes to strings before creating FeedbackEvent (Pydantic expects List[str]) - Fix feedback timestamps 8 hours off in frontend: use parseUTCTimestamp instead of new Date() for UTC timestamp parsing - Fix StreamSessionManager.cleanup missing _feedback_index cleanup Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(monitoring): apply ruff format to wecom feedback files Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> --------- Co-authored-by: 6mvp6 <13727783693@163.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> * feat: add feat for receive files in wecombot * fix: ruff error * fix: always show sidebar plus buttons on touch/mobile devices (#2115) Agent-Logs-Url: https://github.com/langbot-app/LangBot/sessions/e27a4886-fbad-4a7a-8558-67a387852753 Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com> * fix: SPA fallback for all frontend routes, not just /home/* After migrating from Next.js to Vite SPA, routes like /auth/space/callback returned 404 because the static file server only had SPA fallback for /home/*. Now all non-API routes fall back to index.html for React Router to handle. * style: ruff format main.py * feat: add marketplace link when no parser available for file upload Links to /home/market?category=Parser, same pattern as knowledge engine selector. * fix: lint error * fix(user): allow password login and password change for Space accounts with local password set Previously, Space accounts were unconditionally blocked from password login and password change based on account_type. Now the check verifies whether the user actually has a local password set, allowing Space users who have set a local password to authenticate and change it normally. * feat: add edition field to telemetry payload Sends constants.edition (community/saas) with each telemetry event so Space can distinguish between community and SaaS instances. * style: ruff format telemetry.py * fix(dingtalk): use voice recognition text instead of raw audio binary When DingTalk sends a voice message to the bot, the callback JSON contains a 'recognition' field with the speech-to-text result (powered by Qwen). Previously, LangBot only extracted the 'downloadCode' to download the raw audio binary and passed it as 'file_base64' to LLM APIs, which caused 400 errors since most models don't support this content type. This patch: - Extracts the 'recognition' field from DingTalk audio message content - Uses it as plain text input to the LLM instead of raw audio - Falls back to audio binary only when no recognition text is available - Fixes duplicate text issue for audio messages with recognition Fixes voice messages returning 'Request failed' on all LLM models. * feat: integrate Alembic for database migrations Replace manual if-sqlite/if-postgres branching with Alembic: - Add alembic dependency - Create programmatic alembic env (no CLI/alembic.ini needed) - Support async engines via run_sync passthrough - render_as_batch=True for SQLite ALTER TABLE compatibility - Auto-stamp baseline on first run (existing DB at version 25) - Run alembic upgrade head after legacy migrations - Include sample migration showing schema + data migration patterns - Add alembic dir to package-data for distribution * ci: add migration test workflow for SQLite and PostgreSQL Tests alembic upgrade on both databases: - Stamp baseline on existing schema - Upgrade to head - Idempotent re-upgrade - Fresh DB upgrade from scratch * feat: add autogenerate support and CLI entrypoint for alembic - autogenerate: compare ORM models vs DB schema to generate migrations - CLI: python -m langbot.pkg.persistence.alembic_runner <command> - autogenerate, upgrade, stamp, current - Reads data/config.yaml for DB connection * fix: add filereader for dingtalk,lark (#2122) * fix: add filereader for dingtalk * feat: add lark * feat: update uv.lock * chore: update version to 4.9.6 in pyproject.toml, __init__.py, and uv.lock * fix: update langbot-plugin version to 0.3.8 * fix: update langbot-plugin version to 0.3.8 * docs: update database migration instructions in AGENTS.md * fix(dashscopeapi): fix null value check in reasoning content processing logic (#2128) * fix(n8n-runner): fix output_key not applied when n8n returns plain JSON (#2119) * fix: bump dependencies to resolve Dependabot security alerts (#2130) * fix: bump dependencies to resolve Dependabot security alerts Python: - aiohttp: >=3.11.18 → >=3.13.4 (duplicate Host headers, header injection, redirect leak, multipart DoS) - cryptography: >=44.0.3 → >=46.0.7 (buffer overflow with non-contiguous buffers) - pillow: >=11.2.1 → >=12.2.0 (FITS GZIP decompression bomb, HIGH) - langchain-text-splitters: >=0.0.1 → >=1.1.2 (SSRF redirect bypass) - langchain-core: add >=1.2.28 (incomplete f-string validation) - langsmith: add >=0.7.31 (streaming token redaction bypass) - python-multipart: add >=0.0.26 (multipart DoS) - Mako: add >=1.3.11 (path traversal) - pytest: >=8.4.1 → >=9.0.3 (tmpdir handling) - uv: >=0.7.11 → >=0.11.6 (arbitrary file deletion) JavaScript (web/): - vite: ^8.0.3 → ^8.0.5 (fs.deny bypass, WebSocket file read, path traversal, HIGH) - axios: ^1.13.5 → ^1.15.0 (cloud metadata exfiltration) - lodash: ^4.17.23 → ^4.18.0 (code injection via _.template, prototype pollution, HIGH) * fix: update pnpm-lock.yaml for bumped dependencies * feat(ci): add i18n key consistency check for frontend locales (#2133) * feat(ci): add i18n key consistency check workflow Agent-Logs-Url: https://github.com/langbot-app/LangBot/sessions/c7bf50da-189b-49a5-9671-dbe8e70ff9d0 Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com> * feat(ci): replace eval with line-by-line parser, add permissions block Agent-Logs-Url: https://github.com/langbot-app/LangBot/sessions/c7bf50da-189b-49a5-9671-dbe8e70ff9d0 Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com> * feat(models): add provider model scanning * feat(models): add 'select all' functionality and enrich model abilities * fix:ruff * fix:ruff --------- Co-authored-by: WangCham <651122857@qq.com> Co-authored-by: 6mvp6 <119733319+6mvp6@users.noreply.github.com> Co-authored-by: 6mvp6 <13727783693@163.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> Co-authored-by: Guanchao Wang <wangcham233@gmail.com> Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com> Co-authored-by: RockChinQ <rockchinq@gmail.com> Co-authored-by: haiyangbg <zhouhaiyangaa@gmail.com> Co-authored-by: Rock Chin <1010553892@qq.com> Co-authored-by: Amadeus <115918672+AmadeusKurisu1@users.noreply.github.com> Co-authored-by: hzhhong <hung.z.h916@gmail.com> Co-authored-by: fdc310 <2213070223@qq.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: