OpenTag
Open-source, self-hosted AI coworker for Slack and Lark — bring your own LLM
Free - Free and open-source. Requires your own model/plan or API key for model usage (you pay the model provider).
About OpenTag
openTag is a free, open-source AI coworker that integrates LLMs (Claude Code, Codex, Pi, etc.) into Slack and Lark. Run it on your own machine and connect with your API key or cloud plan to avoid model lock-in. Provides self-hosted control, easy Slack/Lark integration, and support for multiple backend models so teams keep data and billing under their own account.
Key Features
- Integrates AI assistants directly into Slack and Lark channels
- Runs locally/self-hosted so teams retain data control
- Model-agnostic: supports Claude Code, Codex, Pi and other API-backed LLMs
- Use your own API key or plan — no vendor model lock-in
- Open-source codebase for customization and auditability
Who is this for?
Engineering teams and organizations using Slack or Lark who want a self-hosted, model-agnostic AI assistant with control over billing and data.
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FreeFree and open-source. Requires your own model/plan or API key for model usage (you pay the model provider).
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