BotFather

Telegram is a cloud-based instant messaging service developed by Telegram Messenger LLP and founded by Pavel and Nikolai Durov. It offers text, voice and video messaging, group chats, channels and a bot API, with optional end-to-end encryption available in "secret chats."

AstrBot is an open-source all-in-one AI agent chatbot platform and development framework that connects instant-messaging platforms with LLM services, plugins, multimodal features, MCP, skills, knowledge bases, persona settings, and automatic context compression. It supports platforms including QQ, Telegram, WeCom, Feishu, DingTalk, Slack, Discord, LINE, and others, and can connect to services such as OpenAI-compatible APIs, Anthropic, Gemini, Ollama, LM Studio, Dify, Coze, and Alibaba Cloud Bailian. Its plugin system offers one-click installation of more than 1,000 plugins, while its agent sandbox isolates code and shell execution and supports session-level resource reuse. AstrBot provides a WebUI and web ChatUI with agent sandbox and web-search support, and can be deployed with uv, Docker or Docker Compose, desktop applications, or other documented deployment methods.

WeChat Bot is an open-source IM agent and command-line tool based on Wechaty. It connects WeChat QR-code logins, Lark events, Telegram's Bot API, and WhatsApp Cloud API to AI services including ChatGPT, DeepSeek, Ollama, Claude, Pi, and other configured providers for message replies and analysis. The project routes received messages through a pipeline that captures WeChat messages locally in JSONL, sends them to a selected model or agent, and posts the response back to the IM channel. Its `wb wx` commands use OpenCLI wx-cli to access local WeChat chats, contacts, group members, favorites, and cached Moments; `wb stats` and `wb analyze` provide local statistics or AI-assisted group and friend analysis. Replies can be restricted with contact and group allowlists, prefixes, and group-mention rules, and non-text messages are not automatically sent to the reply pipeline. The repository is a Node.js project requiring Node.js 18 or later and can be installed with npm or run in Docker. It is licensed under the MIT License. The README warns that WeChat Web protocols can trigger account warnings or bans and recommends narrow allowlists and usage scopes.

LangBot is an open-source platform for building and operating AI-powered instant-messaging bots. It connects large language models to platforms including Discord, Telegram, Slack, LINE, QQ, WeChat, WeCom, Lark, DingTalk, KOOK, and Matrix, supporting multi-turn conversations, tool calling, multimodal input, streaming output, and agent workflows. The platform includes a built-in retrieval-augmented generation knowledge base, integrations with systems such as Dify, Coze, n8n, Langflow, and Deerflow, and an event-driven plugin system with MCP support. A browser-based management panel configures, manages, and monitors bots, while its multi-pipeline architecture supports separate bot workflows and operational monitoring. LangBot can be run through LangBot Cloud, a one-line uvx launch, Docker Compose, or other deployment methods. It also exposes an MCP endpoint that mirrors its HTTP API for programmatic management of bots, pipelines, plugins, and models.

OpenMausBot is an open-source, local-first chat application for managing a team of AI bots as separate contacts. Each bot can have its own personality, model, conversation thread, computer, and connected applications, using agents launched through locally installed Claude, Codex, or Grok command-line tools and existing user logins. A local harness server on 127.0.0.1 manages agent processes, transcripts, keys, and events in the user's local OpenMausBot data directory. Bots can work through a cloud Linux desktop, an isolated local virtual machine, or—where supported—the host computer. Shell commands, file edits, and questions are routed through a permission broker and shown as approval or response cards. The application includes model selection, bot and conversation management, browser-accessible desktop takeover, and connected applications through Composio, including services such as Gmail, Slack, GitHub, Notion, and Linear. The repository provides desktop distributions for macOS, Windows, and Ubuntu, with Ubuntu Wayland host control disabled according to the README while a stated issue is resolved.