AgentIndex icon
AgentIndex
cloister logo
cloister
★ 13
vs
cua logo
cua
★ 30.7k

cloister vs cua

cloister: Cloister is a platform designed to bundle AI tooling and serve it through a single, traceable endpoint, compatible with various AI harnesses like Claude Code and Cursor. It ensures tools operate securely by isolating secrets, logging every call for auditability, and providing consistent deployment across local and production environments.; cua: Cua is an open-source platform designed for building, benchmarking, and deploying AI agents capable of interacting with any computer. It provides isolated, self-hostable sandboxes using technologies like Docker, QEMU, and Apple Vz for agentic UI automation and secure code execution.

01

TL;DR

cloister logo
cloisterLLM Infra · ★ 13

Bundling and serving custom AI agent tools for external harnesses like Claude Code or Cursor.

Read cloister full review →
cua logo
cuaLLM Infra · ★ 30.7k
When to choose:
  • You are building Computer-Use agents and need robust, self-hostable isolated desktop/VM sandboxes (Docker, QEMU, Apple Vz).
  • You need native app operating drivers, standardized benchmarking harnesses, and secure isolation for autonomous agent task execution.
When to skip:
  • You only need simple UI macros on your personal physical machine (Windows-MCP or local desktop helpers are easier).
  • Your agents interact solely via text APIs, shell commands, or databases and have no need for a virtual graphical desktop.
Read cua full review →
02

Side-by-Side Comparison

Field
cloister logocloister
cua logocua
Category
LLM Infra
LLM Infra
Stars
★ 13
★ 30.7k
License
AGPL-3.0
MIT
Install Command
leyline daemon --mcp-port 8384 && pnpm install && task dev:bootstrap && task dev
curl -fsSL https://cua.ai/install.sh | sh
Updated
1w ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
AI Tooling, Edge Router, Serverless
AI Agents, Virtualization, UI Automation
03

Features

cloister logocloister
01Secure Credential Isolation: Tools never directly access secrets; Cloister handles API calls, preventing leaks.
02Comprehensive Audit Trail: Every state-changing call generates a signed, tamper-evident receipt for verification.
03Consistent Deployment: The exact same configuration runs locally and deploys to Cloudflare Workers without modification.
04Protocol Agnostic Routing: Functions as an edge router and bundle host, supporting MCP and other HTTP-shaped tenants.
05Containerized Tools with Sandboxing: Each tool runs in its own sandboxed Workerd isolate for enhanced security.
cua logocua
01Build AI agents for desktop UI automation and interaction.
02Provide isolated code execution environments (sandboxes).
03Benchmark computer-use models with standardized tasks.
04Train agents using reinforcement learning environments.
05Manage high-performance macOS/Linux VMs on Apple Silicon.
04

Use Cases

cloister logocloister
↳Bundling and serving custom AI agent tools for external harnesses like Claude Code or Cursor.
↳Deploying AI tooling with consistent configurations from local development to Cloudflare Workers production environments.
↳Ensuring secure execution of AI tools by preventing direct access to sensitive API keys and tokens.
↳Maintaining an auditable record of all AI tool interactions for compliance and post-factum verification.
cua logocua
↳Developing and deploying AI agents for autonomous desktop interaction and task completion.
↳Creating secure, isolated code execution environments for AI coding assistants and development workflows.
↳Benchmarking and training computer-use agents using standardized tasks and reinforcement learning.
05

Best For

cloister logocloister
—
cua logocua
Most PopularEssentialTrending
FAQ

FAQ

What is the difference between cloister and cua?
Both cloister and cua are in the LLM Infra category. cloister has 13 stars, while cua has 30.7k stars.
Which is better, cloister or cua?
The best choice depends on your use case. Choose cloister if Bundling and serving custom AI agent tools for external harnesses like Claude Code or Cursor., and cua if Developing and deploying AI agents for autonomous desktop interaction and task completion..
Is cloister free or open source?
Yes, cloister is open source on GitHub (AGPL-3.0).
Is cua free or open source?
Yes, cua is open source on GitHub (MIT).
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