OpenTag
OpenTag - Open Source AI Coworker for Teams
Introduction:
OpenTag is an open-source AI coworker for Slack and Lark that executes local coding agents on user machines.
OpenTag Product Information
What is OpenTag ?
OpenTag is an open-source AI coworker designed to bridge team collaboration platforms like Slack and Lark with local developer environments. Users invoke OpenTag by mentioning it in a conversation thread with a specific task, prompting an integrated coding agent (such as Claude Code or Codex) to execute directly on the user's local machine or private server. By adopting a local-first, bring-your-own-subscription model, OpenTag eliminates third-party per-seat fees, keeps proprietary source code secure, and maintains git-backed file memory across development workflows.
OpenTag's Core Features
Open-source AI coworker operating inside Slack and Lark
Local agent execution running directly on user hardware
Direct in-thread task invocation and asynchronous responses
Bring-your-own-subscription model without per-seat markups
Model-agnostic compatibility with tools like Claude Code and Codex
Git-backed, file-based persistent team memory in markdown
Multi-agent coordination for specialized developer operations
Zero external data exposure for local codebases and environments
OpenTag's Use Cases
#1
Triggering automated code generation, refactoring, and debugging via chat mentions
#2
Executing local terminal scripts and developer tasks directly from Slack or Lark threads
#3
Maintaining transparent team project memory inside version-controlled markdown files
#4
Enabling cross-functional team members to trigger local developer agent workflows
#5
Coordinating multi-agent engineering workflows connected to GitHub and issue trackers
OpenTag's Pricing
Free - Open Source (Self-Hosted)
Bring Your Own Model / Subscription
FAQ from OpenTag
What is OpenTag?
- OpenTag is an open-source AI coworker that connects team collaboration platforms like Slack and Lark to local coding agents running directly on your computer.
How does OpenTag work?
- When mentioned in a chat thread with a task, OpenTag routes instructions to a coding agent on the user's local machine, runs the task, and posts results back into the thread.
Is OpenTag free to use?
- Yes, OpenTag is open-source and free to self-host. Users utilize their existing model subscriptions, local environments, or API credentials without per-seat platform fees.
How does OpenTag handle data security and privacy?
- OpenTag runs agents locally on private hardware rather than on third-party cloud infrastructure, keeping proprietary source code and execution strictly within user control.
Which platforms and agent models are supported?
- OpenTag integrates natively with Slack and Lark, and supports agent harnesses and LLMs such as Claude Code, Codex, and custom developer CLI tools.