kitio.ai21st.dev vs FlyonUI MCP
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. 21st.dev starts at See pricing page and FlyonUI MCP starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Component library
- Magic MCP server
- UI variation generation
- Agent-ready prompts
- shadcn compatibility
- Prompt-to-component generation
- Refine existing UI
- FlyonUI block library
- Landing and dashboard pages
- Works in MCP-capable IDEs
| Feature | 21st.dev | FlyonUI MCP |
|---|---|---|
| Best for | UI component library and MCP tools for AI coding agents | MCP server that generates Tailwind CSS UI inside your IDE |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | 21st.dev | FlyonUI |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
21st.dev starts at See pricing page and FlyonUI MCP starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- Browse the whole library
- 2 component copies a day
Builder
$8/mo billed quarterly
- Unlimited copies and installs
- Unlimited shaders and gradients
Builder + AI
$20/mo billed quarterly
- 500 AI credits/month
- Design Bug Bot PR reviews
- Premium AI models
Team
$10/seat/mo billed quarterly
- Per seat, 2 to 50 seats
- Shared collections
- Private team components
- Admin controls
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
21st.dev
- Improves AI-generated UI quality
- Works with major coding agents
- Large free catalog
- React and Tailwind only
- Magic usage is paid
FlyonUI MCP
- Output follows a consistent design system
- Stays inside your editor
- Plain Tailwind code you can edit
- Tied to the FlyonUI component style
- Full access requires a paid plan
- Needs an MCP-capable AI client
Which one should you choose?
Choose 21st.dev if you want:
- Improves AI-generated UI quality
- Works with major coding agents
- Large free catalog
Watch out: react and tailwind only.
Choose FlyonUI MCP if you want:
- Output follows a consistent design system
- Stays inside your editor
- Plain Tailwind code you can edit
Watch out: tied to the flyonui component style.
21st.dev vs FlyonUI MCP FAQ
What is the difference between 21st.dev and FlyonUI MCP?
21st.dev: UI component library and MCP tools for AI coding agents. FlyonUI MCP: MCP server that generates Tailwind CSS UI inside your IDE. Both are coding tools.
Is 21st.dev or FlyonUI MCP cheaper?
21st.dev starts at See pricing page and FlyonUI MCP starts at See pricing page. Check both pricing pages for current plans.
Do 21st.dev and FlyonUI MCP have free plans?
21st.dev: Yes. FlyonUI MCP: Yes.
Who makes 21st.dev?
21st.dev is made by 21st.dev.
Who makes FlyonUI MCP?
FlyonUI MCP is made by FlyonUI.
Which should I choose, 21st.dev or FlyonUI MCP?
Choose 21st.dev if you value improves ai-generated ui quality and works with major coding agents. Choose FlyonUI MCP if you value output follows a consistent design system and stays inside your editor.