openTag | Open Source AI Coworker for Slack & Lark
Introduction
Run Claude Code, Codex or Pi in Slack and Lark with openTag, the free open source AI coworker using your own plan or API key.
openTag's Overview
openTag is an open source AI coworker for Slack and Lark that lets teams delegate tasks in chat and run agents on their own Mac or Linux computer with no AI provider lock-in. It supports your own model provider of choice, including Claude, Codex, Pi, or an API key, and replies back in the same thread. openTag is built for local-first workflows, shared team context, and flexible automation across tools like GitHub, Notion, Calendar, Linear, Jira, Figma, and Google Drive. It uses Context Tree, a portable file-based, git-backed memory layer hosted in your GitHub organization, so team memory stays under your control. The product is Apache 2.0 open source, self-hostable with Docker, and free to use; you only pay your own provider costs.
openTag's Features
Open source Apache 2.0 AI coworker
Works in Slack and Lark
No AI provider lock-in
Runs agents locally on Mac and Linux
Supports Claude, Codex, Pi, or any API key
Self-hostable with Docker
Context Tree for portable, git-backed team memory
Connects to 1000+ services and tools
openTag's Q&A
openTag's Pros and Cons
Pros
- Free to use
- Open source and Apache 2.0 licensed
- No provider lock-in with support for multiple AI subscriptions and API keys
- Local-first execution on the user's own computer
- Strong team memory and collaboration features
Cons
- Requires a Mac or Linux computer with the agent installed
- Slack and Lark are the only supported messaging apps right now
- Teams and Discord support are not yet available
- Shared workspaces are recommended to use an API key
- Some connectors and agents are still described as coming soon
openTag's Use Cases
- Delegating tasks from Slack or Lark threads
- Running coding and engineering work from chat
- Sharing team context and project memory across agents
- Connecting AI workflows to GitHub, Notion, Calendar, Jira, Linear, Figma, and Google Drive
- Automating issue triage and pull request creation
openTag's Target Audience
- Engineering teams
- Startups
- Software developers
- Open-source maintainers
- Design and product teams
- Organizations that want self-hosted, local-first AI agents
openTag's Pricing
openTag is free to use. You pay for your own AI usage through your existing provider subscription or API key.
openTag's Analytics
Website Overview
Key performance metrics for opentag.build
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