CopilotKit

Open-source SDK that connects AI agents to app front ends with chat UI, generative UI, shared state and human approvals; creator of the AG-UI protocol.

Harness by CopilotKit

IndexedMIT★ 38,211

Write a review

Chalk Labs

Need help deploying CopilotKit?

Chalk Labs sets up agents like this inside real teams: connected to your tools, tested on your data, with a human in the loop where it matters.

Book a call

Install

From the package registry. Read the repository before you give any tool access to your data.

npm install @copilotkit/react-core

Get the weekly diff

The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.

About

CopilotKit is a frontend layer between agents and users, aimed at React, Angular, Vue and React Native apps and at Slack and Microsoft Teams. Its features include a chat UI with streaming, backend tool rendering, generative UI, shared state between agent and UI, and human-in-the-loop pauses for input or confirmation. It works with several agent backends such as Mastra, Google ADK, PydanticAI, CrewAI and LlamaIndex. A commercial add-on, CopilotKit Intelligence, adds persistent threads, user memories and automatic learning.

Use cases: frontend-development, agent-orchestration

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Fact sheet

Languages: TypeScriptREADME
Packages: @copilotkit/react-core (npm), copilotkit (npm)README
MCP support: Built incopilotkit.ai
Streaming: YesREADME
Memory: long-termREADME
Human in the loop: YesREADME
Deploys to: self-hostedcopilotkit.ai
Maturity: Betagithub.com

Facts extracted by Claude Sonnet 5.5 from the linked sources on Oct 24, 2026; reviewed Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

Compare and alternatives

Featured in

Best agent frameworks for TypeScript

Signals

Stars: 38,211
Forks: 4,769
Open issues: 105
Weekly downloads: 286,211
Last commit: Oct 24, 2026 (6 days ago)
Last release: Oct 16, 2026 (15 days ago)
Last package publish: Oct 15, 2026 (15 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Packages: npm @copilotkit/react-corenpm copilotkit
License: MIT
Repository: github.com/CopilotKit/CopilotKit
Website: www.copilotkit.ai/
Docs: docs.copilotkit.ai/
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: README Website Docs github-graphql

More from CopilotKit

Done for you

Rather not set it up yourself?

Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.

See how we build AI agents →Read the case studies

Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.

launches shipped: 50+; launches shipped
media placements: 500+; media placements
founders on every account: 2; founders on every account

Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block

Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.

Get CopilotKit running in your business

Tell us what you want to automate. A founder replies within one working day with a plan, not a pitch deck.

Need help deploying CopilotKit?

Call Get help

Cite this page

CopilotKit. Agent Mart. https://agentmart.dev/harnesses/copilotkit (last updated 2026-10-24)