CopilotKit
An open-source framework for building agent-powered interfaces into applications, based on the AG-UI protocol. It provides the chat, copilot and in-app action layer between users and AI agents. Raised $27M Series A in 2026; enterprise tier adds self-hosting and support.
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Our take
An open-source framework for building agent interfaces into your own app - the UI layer between users and AI agents, built on the AG-UI protocol. Drop in chat, copilots and in-app actions instead of wiring it all yourself. Raised $27M Series A in 2026, and AG-UI is being adopted across the agent ecosystem. An enterprise tier adds self-hosting and support.
Best for
Product engineers adding in-app copilots or agent UIs without building the interface plumbing from scratch.
Pros
- Open-source core, self-hostable
- AG-UI protocol gaining broad adoption
- Cuts agent-UI build time sharply
- Backed by a $27M Series A
Cons
- A developer framework, not no-code
- You still build and host the agent logic
How it compares
Where cataloged frameworks like LangChain and CrewAI focus on agent logic, CopilotKit owns the user-facing interface layer via AG-UI.
Full review
CopilotKit is an open-source toolkit for putting AI agents in front of users. It handles the interface layer - chat panels, in-app copilots and agent-driven actions - built on the open AG-UI protocol, so developers don't have to reinvent that plumbing for every product.
The company raised a $27M Series A in 2026 (including a previously unannounced $7M seed) and is building CopilotKit Enterprise Intelligence, a self-hostable tier on top of AG-UI for teams deploying agents at scale. AG-UI has been picked up by a number of well-known names in the agent ecosystem.
Cloudkart Trust Graph
4.0/5- Actual Utility4/5
Source: Initial LLM-authored rubric (backfill)
- Ease of Use3/5
Source: Initial LLM-authored rubric (backfill)
- Pricing Fairness5/5
Source: Initial LLM-authored rubric (backfill)
- Reliability4/5
Source: Initial LLM-authored rubric (backfill)
- Differentiation4/5
Source: Initial LLM-authored rubric (backfill)
Scored as of . Each score is versioned and auditable; vendors cannot buy it.
How this score is set
- Editorial rubric
- Primary signal — five dimensions, 4.0/5 average.
- Community reviews
- None yet.
- Pricing verified
- Not yet verified
- Independence
- Score set by our editorial team before any affiliate relationship is considered. No vendor can buy it.
Frequently asked questions
- Is CopilotKit free, and how much does it cost?
- CopilotKit is open source and free to self-host.
- Who is CopilotKit best for?
- Product engineers adding in-app copilots or agent UIs without building the interface plumbing from scratch.
- How is CopilotKit rated on Cloudkart.ai?
- CopilotKit scores 4.0 out of 5 on the Cloudkart.ai rubric, which weighs actual utility, ease of use, pricing fairness, reliability and differentiation. Scores are set editorially and can never be bought.
Community reviews
No community reviews yet. Be the first to share how CopilotKit works for you.
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