CopilotKit
by CopilotKit
The frontend stack for building AI agents into real apps
CopilotKit is an open-source frontend framework and enterprise platform that lets developers embed AI agents directly inside their applications with generative, interactive UI. It is built for engineering teams that want agents to act inside a product's UI across web, Slack and Teams — not just in a chat box.
At a Glance
- Category
- Agent Development
- Pricing
- Freemium, Subscription
- Target Market
- Enterprise Developers, CTOs, Product Engineering Teams, AI Application Builders
- Headquarters
- Seattle, USA
- Customers
- Enterprise adopters include Deutsche Telekom, Docusign, Cisco and S&P Global; company cites use across the majority of the Fortune 500
Key Features
- ✓Generative UI
Agents render rich, interactive UI components (not just text) inside your app as they work.
- ✓AG-UI protocol
Open standard for agent-to-UI communication with streaming chat, front-end tool calls and shared state.
- ✓Threads + persistence
Automatic thread and state persistence across app sessions, Slack threads and Teams conversations.
- ✓Framework-agnostic SDKs
React and Angular SDKs that plug into LangGraph, CrewAI, Pydantic AI, LlamaIndex, Mastra, Agno and more.
- ✓Multi-surface deployment
Deploy the same agent experience across web, mobile, Slack and Teams from one stack.
Capabilities
Use Cases
- •In-app copilots
Ship product-native AI copilots that render interactive UI and take actions inside the application.
- •Slack and Teams agents
Bring the same agent, with persistent threads and state, into Slack and Teams workspaces.
- •Human-in-the-loop workflows
Add approval steps and front-end tool calls so users stay in control of what agents do.
Ideal For
Best For
- ✓Embedding AI agents inside a product's real UI
- ✓Building generative/interactive UI for agents across web, Slack and Teams
- ✓Adding human-in-the-loop and shared agent state to apps
Integrations
Deployment
Market & Ratings
Enterprise adopters include Deutsche Telekom, Docusign, Cisco and S&P Global; company cites use across the majority of the Fortune 500
Market Analysis
Pros
- ✓Open-source core with very high install volume
- ✓Framework-agnostic — works with existing agent stacks
- ✓Broad backing from Google, Microsoft, Amazon and Oracle for AG-UI
Cons
- ✗Frontend-only — you still bring your own agent backend and model
- ✗Young enterprise offering (Series A, 2026)
- ✗Smaller team (~25 employees)
Pricing
Developer
$0
- ✓1 developer
- ✓Cloud hosting + VPC/On-Prem runtime
- ✓3-day thread retention
- ✓200 max threads
- ✓1 GB storage
- ✓Inspector
- ✓Discord community
Pro
From $39/mo
- ✓Up to 5 developers
- ✓5-day retention
- ✓5,000 threads
- ✓10 GB storage
- ✓Inspector
Team
From $500/mo
- ✓5 seats included
- ✓Self-hosting with database
- ✓14-day retention
- ✓25,000 threads
- ✓100 GB storage
- ✓Dedicated Slack support
Enterprise
Contact for pricing
- ✓Unlimited seats and threads
- ✓Custom retention
- ✓Analytics
- ✓Dedicated engineering support
- ✓SLA
- ✓Roadmap input
$39 is per developer/month on Pro. VPC/On-Prem deployment is a +$2,500/mo add-on on the Team plan. Core framework is open source.
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