21st

21st

21st.dev
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About

21st is a developer platform that provides the fastest way to add AI agents directly into applications. The platform offers an SDK that allows developers to define, deploy, and run AI agents with minimal infrastructure setup. Developers can integrate agents using popular frameworks such as Next.js, React, TypeScript, Python, and Node.js. 21st includes built-in features like chat interfaces, session history, tool execution, memory, and real-time streaming responses. The platform also manages backend components such as sandboxed execution environments, authentication, rate limits, and observability. With support for Claude Code and Codex runtimes, developers can build agents that interact with tools, files, and APIs securely. By handling infrastructure and deployment automatically, 21st enables teams to launch production-ready AI agents quickly.

About

ZeroClaw is a Rust-native autonomous AI agent framework engineered for teams that require fast, secure, and highly modular agent infrastructure. It is designed as a compact, production-ready runtime that launches quickly, runs efficiently, and scales through interchangeable providers, channels, memory systems, and tools. Built around a trait-based architecture, ZeroClaw allows developers to swap model backends, communication layers, and storage implementations through configuration changes without rewriting core code, reducing vendor lock-in and improving long-term maintainability. It emphasizes a minimal footprint, shipping as a single binary of about 3.4 MB with startup times under 10 milliseconds and very low memory usage, making it suitable for servers, edge devices, and low-power hardware. Security is a first-class design goal, with sandbox controls, filesystem scoping, allowlists, and encrypted secret handling enabled by default.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Software developers, startups, and product teams that want a fast and scalable way to build and deploy AI agents inside their applications

Audience

AI infrastructure teams and developers wanting a tool to deploy and operate autonomous AI agents efficiently

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

21st.dev
21st.dev/

Company Information

ZeroClaw
United States
www.zeroclawlabs.ai/

Alternatives

Alternatives

Claude Code

Claude Code

Anthropic
OpenClaw

OpenClaw

Molty
Claude Cowork

Claude Cowork

Anthropic
IronClaw

IronClaw

Near AI

Categories

AI SDKs Supported
UI Design Supported

Categories

AI Agents Supported
AI Assistants Supported

Integrations

ChatGPT Not Supported
Discord Not Supported
Grok Bot Supported
OpenAI Not Supported
Raspberry Pi OS Not Supported
React Supported
Rust Not Supported
Tailwind CSS Supported
Telegram Not Supported
WhatsApp Not Supported
shadcn/ui Supported

Integrations

ChatGPT Supported
Discord Supported
Grok Bot Not Supported
OpenAI Supported
Raspberry Pi OS Supported
React Not Supported
Rust Supported
Tailwind CSS Not Supported
Telegram Supported
WhatsApp Supported
shadcn/ui Not Supported
Claim 21st and update features and information
Claim 21st and update features and information
Claim ZeroClaw and update features and information
Claim ZeroClaw and update features and information