@21st-dev/magic
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| API_KEY | Yes | Your 21st.dev Magic API Key |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| 21st_magic_component_builderA | "Use this tool when the user requests a new UI component—e.g., mentions /ui, /21 /21st, or asks for a button, input, dialog, table, form, banner, card, or other React component. This tool ONLY returns the text snippet for that UI component. After calling this tool, you must edit or add files to integrate the snippet into the codebase." |
| logo_searchA | Search and return logos in specified format (JSX, TSX, SVG). Supports single and multiple logo searches with category filtering. Can return logos in different themes (light/dark) if available. When to use this tool:
Example queries:
Format options:
Each result includes:
|
| 21st_magic_component_inspirationA | "Use this tool when the user wants to see component, get inspiration, or /21st fetch data and previews from 21st.dev. This tool returns the JSON data of matching components without generating new code. This tool ONLY returns the text snippet for that UI component. After calling this tool, you must edit or add files to integrate the snippet into the codebase." |
| 21st_magic_component_refinerA | "Use this tool when the user requests to re-design/refine/improve current UI component with /ui or /21 commands, or when context is about improving, or refining UI for a React component or molecule (NOT for big pages). This tool improves UI of components and returns redesigned version of the component and instructions on how to implement it." |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 4 tools
Each tool has a clearly distinct purpose: builder creates new component snippets, inspiration fetches data/previews from 21st.dev, refiner improves existing components, and logo_search specifically handles logo lookup. There is no overlap or ambiguity between them.
The three component tools follow a consistent naming pattern with the '21st_magic_component_' prefix, but logo_search deviates from this convention. While readable and mostly predictable, the mixed pattern prevents a perfect score.
With 4 tools, the server is well-scoped for its purpose of assisting with React component workflows (create, inspire, refine, and logos). Each tool earns its place without unnecessary redundancy.
The tool surface covers the core workflow for a UI component assistant: building new components, gathering inspiration, refining existing ones, and searching logos. There are no obvious gaps for the stated niche, and the server's purpose is fully addressed.