CopilotKit
Open-source React/Angular UI layer for in-app AI agents
Overview
An MIT-licensed frontend SDK for building in-app copilots, generative UI and agentic chat in React, Angular and mobile. Maker of the AG-UI protocol adopted by Google, LangChain, AWS and Microsoft.
Pricing
Pricing shown for reference only. These figures reflect RECATOOLS research as of 13 Jul 2026 and may be out of date or incomplete. This is not financial or purchasing advice — always confirm the current price on the provider’s official website before making any decision.
- Open-source framework (MIT)
- Discord community support
- 10GB storage
- 5-day retention
- Dedicated Slack support
- 100GB storage
- Up to 5 hrs/week engineering support
- Custom retention + roadmap input
What you can produce with CopilotKit
- In-app copilot + chat SDK (React, Angular, mobile)
- Generative UI components
- AG-UI protocol
- Human-in-the-loop approvals + shared state
- MIT-licensed, self-hostable
- Hosted cloud with thread management
- Slack and Teams integrations
ASEAN Perspective
CopilotKit in Southeast Asia
ASEAN-region availability and pricing notes coming soon. Drop the editorial team a note via /contact/ if you can supply local context (Singapore/Malaysia/Indonesia/Thailand/Vietnam).
Most agent frameworks stop at the backend and leave you to hand-roll the chat window, the streaming, the human-in-the-loop approvals. CopilotKit owns that missing layer — the interface between users and agents — and it's open source under MIT with 36,000-plus GitHub stars. The strategic bet is AG-UI, its protocol for wiring any compatible agent backend to a front end, now picked up by Google, LangChain, AWS, Microsoft and others. A $27M Series A in May 2026 and logos like Cisco, Docusign and S&P Global say the enterprise interest is real. Caveats are the obvious ones: this is developer tooling, so non-engineers get nothing from it directly, and it's English-documented with no localization. The free tier and self-hostable code make it low-risk to trial. If you're a React or Angular team putting agents in front of real users, start here.
What people say
CopilotKit's traction shows up in GitHub numbers rather than G2 stars: the open-source repos have passed 36,000 stars under an MIT license, with millions of weekly installs and, by the company's account, tens of millions of agent-user interactions a week running through it. For a dev tool, that install base is the review.
The core idea is narrow and useful. Building an AI agent's logic is one problem; putting a usable interface in front of it — streaming responses, front-end tool calls, shared state, human approval steps — is a separate one most frameworks punt on. CopilotKit is the SDK for that interface layer, across React, Angular, React Native and chat surfaces like Slack and Teams.
Its bigger play is AG-UI, an open protocol standardizing how agents talk to UIs. Adoption by Google, LangChain, AWS, Microsoft, Mastra and PydanticAI is why the $27M Series A (led by Glilot Capital, NFX and SignalFire, May 2026) drew attention — investors are betting AG-UI becomes the default. Enterprise customers named include Deutsche Telekom, Docusign, Cisco and S&P Global, and the company says a majority of Fortune 500s touch its tools.
Pricing is straightforward for a dev product. The framework itself is free and open source; the hosted cloud adds a free Developer tier (one seat, 200 threads, 1GB), Pro at $39/developer/month (up to 5 seats), Team at $500/month with self-hosting and Slack support, and custom Enterprise terms with dedicated engineering hours. Because the code is MIT-licensed, teams wary of lock-in can self-host the framework and skip the cloud entirely.
What to weigh: this is squarely developer infrastructure, so there's no end-user product and no value for non-engineers. Docs and community are English-first. And as with any fast-moving protocol play, the AG-UI standard is still consolidating — betting on it assumes the current momentum holds. For front-end teams shipping agents into production apps, though, few tools address this exact gap as directly.
Summary of public user & expert reviews, compiled by RECATOOLS.
About this listing
This entry was compiled from publicly available data including CopilotKit's official website, press releases, documentation, and reputable third-party publications. RECATOOLS is not affiliated with CopilotKit unless explicitly stated.
Third-party AI tools update their pricing, features, availability, and policies frequently. Information here may be outdated by the time you read this — we make reasonable efforts to keep listings current, but cannot guarantee absolute accuracy.
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