21st

21st

21st.dev
+
+

Related Products

  • Apify
    1,175 Ratings
    Visit Website
  • Twilio
    1,373 Ratings
    Visit Website
  • Retool
    567 Ratings
    Visit Website
  • Google Cloud Run
    325 Ratings
    Visit Website
  • JetBrains Junie
    12 Ratings
    Visit Website
  • Viktor
    2 Ratings
    Visit Website
  • Pipefy
    591 Ratings
    Visit Website
  • Windsurf Editor
    161 Ratings
    Visit Website
  • Gearset
    249 Ratings
    Visit Website
  • Vertex AI
    944 Ratings
    Visit Website

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

Manifold Security is an AI Detection and Response platform built to secure autonomous AI agents operating on enterprise endpoints, addressing a critical gap in traditional cybersecurity approaches that focus primarily on user activity or model inputs and outputs. It provides runtime visibility into what AI agents actually do, capturing their behavior as they interact with systems, execute commands, access files, and call APIs across development environments and production infrastructure. Observing agent activity directly on endpoints without requiring additional infrastructure such as proxies or gateways, it enables organizations to monitor real actions rather than just prompts or responses. It maps relationships between agents, tools, and connected services, offering a clear view of which agents are active, what permissions they use, and how they interact with internal and external resources.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

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

Audience

Enterprise security teams and organizations using AI agents who need to monitor, detect, and respond to risky agent behavior across endpoints in real time

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

21st.dev
21st.dev/

Company Information

Manifold Security
Founded: 2025
United States
www.manifold.security/

Alternatives

Alternatives

CrowdStrike Falcon

CrowdStrike Falcon

CrowdStrike

Categories

Categories

Integrations

Amazon S3
Claude
Gemini
GitHub
OpenAI
React
Tailwind CSS
shadcn/ui

Integrations

Amazon S3
Claude
Gemini
GitHub
OpenAI
React
Tailwind CSS
shadcn/ui
Claim 21st and update features and information
Claim 21st and update features and information
Claim Manifold Security and update features and information
Claim Manifold Security and update features and information