01 / MEMORY
Memory that stays put.
It remembers the project across threads and sessions — and only inside the room it learned it. Tag it elsewhere and it cannot read what it was never given.
Support all agents, all models.
Trusted by users from
Drop a to-do into any thread and get the finished work back in the same chat.
v4.1.0…v4.2.0 — 63 commits.--legacy-auth removedexit 137.Bring your own everything
OpenTag never touches your tokens. It drives the agent already on your machine.
On subscriptions: consumer plans from Anthropic and OpenAI are written for their own apps. Third-party use is governed by each provider's terms. API keys are the fully supported path.
What you get
01 / MEMORY
It remembers the project across threads and sessions — and only inside the room it learned it. Tag it elsewhere and it cannot read what it was never given.
02 / PERMISSIONS
Tools are scoped to the channel, not shared globally. Engineering reaches GitHub; legal only sees contracts. In a DM it falls back to your own account and connectors.
03 / INTEGRATIONS
GitHub, GitLab, Notion, Google Calendar and more — your agent reaches the tools your team already uses.
04 / SKILLS
A skill is a markdown file. Write it, commit it, review it in a PR.
Social proof
It finally feels like a build tool that works the way I want.
Running six agents in parallel and reviewing every diff in one place. This is the workflow I wanted.
As a designer, the UI is the first thing I judge. This one actually holds up.
It's like adding five engineers to a two-person startup, overnight.
Agents triage my repo's issues and open PRs while I sleep. For a solo maintainer, that's huge.
Beautiful UI, and it handles all the git worktree stuff for you.
Compare
| OpenTag | Claude Tag | Ogment | Adapt | Viktor | |
|---|---|---|---|---|---|
| Open source | — | — | |||
| Runtime support | — | — | |||
| Bring your own plan | — | — | — | ||
| Run on your own machine | — | ||||
| IM integration | Slack | Slack | Slack | Slack, Teams | |
| Option to self-host | — | ||||
| Pricing model | Free · you pay your provider | Usage balance | Credits | Usage credits | Workspace credits |
Checked against each vendor’s own docs and pricing pages, August 2026. — means the vendor doesn’t state it publicly, not that the answer is no. Something wrong? Open an issue and we’ll correct it.
The future of work is humans and agents building side by side.