AgentIndex icon
AgentIndex
CopilotKit logo
CopilotKit
★ 38.2k
vs
kremis logo
kremis
★ 15

CopilotKit vs kremis

CopilotKit: CopilotKit is a React framework for embedding AI copilots, chatbots, and in-app agents directly into web applications. It provides UI components (chat interface, sidebar, textarea) and backend infrastructure for building agentic frontends — where AI can read and modify application state, take actions, and render generative UI. Supports LangChain, LangGraph, CrewAI, and custom agent backends.; kremis: Kremis is a deterministic knowledge graph MCP server written in Rust. It provides a local, single-binary solution for recording, associating, and retrieving knowledge without relying on LLMs. The system ensures determinism, inspectability, and grounding through ACID transactions and BLAKE3 hashing.

01

TL;DR

CopilotKit logo
CopilotKitDev Tooling · ★ 38.2k
When to choose:
  • You are building a React, Angular, Vue, or React Native app and need an MIT-licensed frontend layer for in-app AI copilots, generative UI, and human-in-the-loop state sharing.
  • You want to connect your existing LangGraph, CrewAI, or custom agent backend to web apps, Slack, and Microsoft Teams via the AG-UI protocol.
When to skip:
  • You are looking for a backend agent orchestration engine rather than a frontend/UI integration SDK; use CrewAI, Pydantic AI, or LangGraph for the backend.
  • You want a standalone desktop chat client for personal use; use Cherry Studio.
Read CopilotKit full review →
kremis logo
kremisDev Tooling · ★ 15

AI agent memory via MCP

Read kremis full review →
02

Side-by-Side Comparison

Field
CopilotKit logoCopilotKit
kremis logokremis
Category
Dev Tooling
Dev Tooling
Stars
★ 38.2k
★ 15
License
MIT
Apache-2.0
Install Command
npx copilotkit@latest create
git clone https://github.com/TyKolt/kremis.git && cd kremis && cargo build --release
Updated
1d ago
2d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
AI Agents, Frontend Framework, Generative UI
ai, ai-agents, anti-hallucination
03

Features

CopilotKit logoCopilotKit
01Drop-in React UI components: chat, sidebar, textarea, and generative UI
02AI can read and write your application's frontend state bidirectionally
03Backend adapters for LangChain, LangGraph, CrewAI, and custom agents
04Human-in-the-loop patterns for approving AI actions before execution
05Copilot Cloud hosted option or fully self-hosted deployment
kremis logokremis
01Deterministic graph engine
02CLI + HTTP API + MCP bridge
03BLAKE3 hashing for integrity
04Canonical export (KREX)
05Zero baked-in knowledge
04

Use Cases

CopilotKit logoCopilotKit
↳Adding a context-aware AI copilot to a SaaS product that understands app state
↳Building AI-powered document editors where the agent can directly modify content
↳Embedding a conversational agent in a dashboard that can read and update data
kremis logokremis
↳AI agent memory via MCP
↳LLM fact-checking
↳Provenance and audit trail
05

Best For

CopilotKit logoCopilotKit
Most PopularEssentialTrending
kremis logokremis
—
FAQ

FAQ

What is the difference between CopilotKit and kremis?
Both CopilotKit and kremis are in the Dev Tooling category. CopilotKit has 38.2k stars, while kremis has 15 stars.
Which is better, CopilotKit or kremis?
The best choice depends on your use case. Choose CopilotKit if Adding a context-aware AI copilot to a SaaS product that understands app state, and kremis if AI agent memory via MCP.
Is CopilotKit free or open source?
Yes, CopilotKit is open source on GitHub (MIT).
Is kremis free or open source?
Yes, kremis is open source on GitHub (Apache-2.0).
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Related

Alternatives to CopilotKit →Alternatives to kremis →CopilotKit details →kremis details →