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

Mindmap.io is a mindmapping software where nodes can be prompts. It replaces the linear chat log with a canvas where every node is a live AI conversation you can branch from, so the structure of your thinking stays visible and reusable. Run ChatGPT, Claude, Gemini, Grok, DeepSeek or Kimi per node and compare answers side by side. Let AI expand a part of your mindmap by asking follow up questions on your behalf, the built-in agent Milo reads and edits the map for you, and prompt nodes can search the web with sources. Semantic zoom with AI-generated summaries allow you to see the big picture in your mindmap. Attach images and PDFs as context. Publish a map as a link or embed it live in any page. Export to PNG and Markdown. You can also use mindmap.io's MCP or Claude plugin to have your own Codex or Claude agents build mindmaps for you. Useful for roadmaps, studying, creative work, competitive analysis, system design, postmortems and research.

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 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

Audience

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

Audience

Students, Researchers, Visual Thinkers, AI tinkerers, teachers, creatives, writers.

Support

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

Support

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

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$7/month/user
Free Version Not Supported
Free Trial 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

mindmap.io
Founded: 2026
Canada
mindmap.io

Alternatives

Alternatives

MindMup

MindMup

Sauf Pompiers

Categories

AI SDKs Supported
UI Design Supported

Categories

Mind Mapping Supported

Integrations

React Supported
Tailwind CSS Supported
shadcn/ui Supported

Integrations

React Not Supported
Tailwind CSS Not Supported
shadcn/ui Not Supported
Claim 21st and update features and information
Claim 21st and update features and information
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Claim mindmap.io and update features and information