Introducing Open Tag. A better, open-source Claude Tag. Works with any model, any agent harness, and fully custom agents. Supports → Generative UI → Streaming replies → Human in the Loop approvals → Full thread context Slack and MS Teams today. Discord, Google Chat, WhatsApp soon. Request early access:

Come on.. you don't say "open-source" and point us to a Google form instead of a repo

We’ve been working on this for a little while and we’re about a week or two from public launch. But decided to accelerate it behind early access. Public access is coming soon.

Why are you publishing a form and not a GitHub repo? Is this intended to become a startup?

It’s built on @CopilotKit and our AG-UI protocol. All open source. We’ve just released early access for Slack and Teams. With many more frontend clients coming soon (Telegram, WhatsApp, Discord…).

@CopilotKit Ok so a startup but open source?

@CopilotKit CopilotKit, yes. But we're building more than just Open Tag. We let devs bring any Agent, to any User, on any Platform.

calling it opentag then not open sourcing it ? let go of the name

We’ve been working on it for a while and it was a couple of weeks from launch when Claude tag came out. We accelerated it in early access but public launch coming soon!

Why name it >Open<Tag and then put behind form?

We’ve been working on this for a little while and we’re about a week or two from public launch. But decided to accelerate it behind early access. Public access coming soon!

Code or service?

Both. The underlying SDKs will be available open source. Dealing with Slack/Teams/… deployment is a PAIN so also making available a service that takes care of that. The service is part of CopilotKit Enterprise so it’s available via our managed cloud but also fully self hostable for VPC/on prem deployment

Awesome, thank you! Quick question, do you have any license restrictions for using CopilotKit in products directly competitor of CopilotKit Enterprise in the area of connecting to Slack?

No, it’s MIT license

C'mon you claim "open source" but no source provided...

We’ve been working on it for a while and it was a couple of weeks from launch when Claude tag came out. We accelerated it in early access but public launch coming soon!

I am on it too - everyone building their own tags

How is it? Love to hear feedback early

How does the memory layer work in Open Tag? I feel that is the tricky part

@ataiiam Context compaction may be tricky too

@ataiiam true, I wonder if different tools use different context mechanisms

This is awesome, love to see it

Would love to get any feedback!

use

@MattMolinar open source Claude tag!

@DulusCorp save this on Notion & Slack

CopilitKit is always cooking!

@CopilotKit This team is just insane!

@CopilotKit Appreciate that :) Hope you've been using @CopilotKit and AG-UI

@CopilotKit While I’ve been building an in-house custom solution for our product I also discovered @CopilotKit and all the underlying tools, so good. We had to stick with the custom solution at work, but I used it in my side/weekend projects 👏🏼

Open....a form?

i was expecting someone to drop opentag and who better than you guys. lets goo

Exciting 😁

Just upload the repo brouuuuski

We are working on it! We’ve been working on it for a while and it was 1-2 weeks away from public launch when Claude tag came out. We decided to accelerate availability in early access. But public launch coming soon!

Sweet. Already shared with my team

Would love to hear feedback!

well, we need access! We are a 20+ marketing team: Please, give us access! We’ll try it out right now.

open source but gated through a google form? lmfao fuck off

Yeah, I hear you - we’ve been working on it for a while and it was a couple of weeks from launch when Claude tag came out. We accelerated it in early access but public launch coming very very soon!

@CopilotKit Bring any agent to slack

Currently got my Mastra agents using ChatSDK for Slack; love to try this out instead

Try it and let me know what you think. We’ve opened it for early access and would love feedback.

@KevRojo This looks super handy.

Can this be added as well i would love to have streaming html

@CopilotKit Bookmarked

Always feels good to see an open-source alternative to a closed-source solution. If tags become a real interface primitive for agents, they probably shouldn’t be locked to one model or one harness.

Exactly and that's what we try to do at @CopilotKit . We're building the horizontal layer for the agentic frontend stack. Any agent, for Any user, on Any platform.

huge

Hope we can get you early access as well!

Would be great to pair it with so that Open Tag can debug infra and follow up on incidents with root cause

would it work with google chat?

Yes!

This sounds awesome! Excited to see how Open Tag enhances collaboration across platforms. Can't wait to give it a try!

Let us know what you think!

Please check DM

lol 😂 Whenever Claude give something X to the world, we will see OpenXXX :)

It’s only a matter of time haha

Filled the form

Awesome, we're working on reaching out to everyone asap.

My agent runs a browser round the clock. The HITL loop I shipped first was just me approving CSS tweaks at 1am, useless. Had to rebuild so it only escalates what it can't decide.

Whats the difference between OpenTag and OpenClaw? Cant you just wire OpenClaw to Slack already?

I was defeated by your early access form.

DMd you

@QuantumTransf 😆这就有了

@braneloop I believe the key behind Claude tag is RL training on Slack. This isn’t only a harness thing; I’m pretty sure there’s a slack fine tiene model behind

Waiting for gchat

It’s available - sign up in early access via the link and we will add you