Cosmic vs Shadcn Ui MCP Server
A side-by-side look at the Cosmic and Shadcn Ui MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Cosmic for developer tools work as a local process; choose Shadcn Ui MCP Server for developer tools as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Cosmic when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
COSMIC_BUCKET_SLUG, COSMIC_READ_KEY, COSMIC_WRITE_KEY. - You want tools like
cosmic_objects_list, cosmic_objects_get, cosmic_objects_create.
Choose Shadcn Ui MCP Server when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
MCP_TRANSPORT_MODE, MCP_PORT, MCP_HOST, MCP_CORS_ORIGINS, GITHUB_PERSONAL_ACCESS_TOKEN, UI_LIBRARY. - You want tools like
get_component, get_component_demo, list_components.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Developer Tools | Developer Tools |
| Quality signal | 56/100 · Good | 72/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | API key required |
| Pricing | Not declared | Free |
| Required env vars | COSMIC_BUCKET_SLUGCOSMIC_READ_KEYCOSMIC_WRITE_KEY | MCP_TRANSPORT_MODEMCP_PORTMCP_HOSTMCP_CORS_ORIGINSGITHUB_PERSONAL_ACCESS_TOKENUI_LIBRARY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 1 | 3,068 |
| Directory activity | 1 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 18 | 10 |
| Full listing | View Cosmic | View Shadcn Ui MCP Server |
Tools & capabilities
Cosmic tools 18
cosmic_objects_listList objects with optional type filter, status, and paginationcosmic_objects_getGet a single object by ID or slugcosmic_objects_createCreate a new object (requires write key)cosmic_objects_updateUpdate an existing object (requires write key)cosmic_objects_deleteDelete an object (requires write key)cosmic_media_listList media files with optional folder filtercosmic_media_getGet media details by IDcosmic_media_uploadUpload media from URL or base64 (requires write key)cosmic_media_deleteDelete a media file (requires write key)cosmic_types_listList all object types in the bucketcosmic_types_getGet object type schema by slugcosmic_types_createCreate a new object type (requires write key)- +6 more on the listing page
Shadcn Ui MCP Server tools 10
get_componentGet the source code for a specific shadcn/ui v4 componentget_component_demoGet demo code illustrating how a shadcn/ui v4 component should be usedlist_componentsGet all available shadcn/ui v4 componentsget_component_metadataGet metadata for a specific shadcn/ui v4 componentget_directory_structureGet the directory structure of the shadcn-ui v4 repositoryget_blockGet source code for a specific shadcn/ui v4 block (e.g., calendar-01, dashboard-01)list_blocksGet all available shadcn/ui v4 blocks with categorizationapply_themeApply a TweakCN theme preset to the projectlist_themesList available tweakcn themesget_themeGet details of a specific tweakcn theme
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Cosmic
{
"mcpServers": {
"cosmic": {
"command": "npx",
"args": [
"-y",
"@cosmicjs/mcp"
],
"env": {
"COSMIC_BUCKET_SLUG": "YOUR_COSMIC_BUCKET_SLUG_HERE",
"COSMIC_READ_KEY": "YOUR_COSMIC_READ_KEY_HERE",
"COSMIC_WRITE_KEY": "YOUR_COSMIC_WRITE_KEY_HERE"
}
}
}
}
Shadcn Ui MCP Server
{
"mcpServers": {
"jpisnice-shadcn-ui-mcp-server": {
"command": "npx",
"args": [
"-y",
"@jpisnice/shadcn-ui-mcp-server"
],
"env": {
"MCP_TRANSPORT_MODE": "YOUR_MCP_TRANSPORT_MODE_HERE",
"MCP_PORT": "YOUR_MCP_PORT_HERE",
"MCP_HOST": "YOUR_MCP_HOST_HERE",
"MCP_CORS_ORIGINS": "YOUR_MCP_CORS_ORIGINS_HERE",
"GITHUB_PERSONAL_ACCESS_TOKEN": "YOUR_GITHUB_PERSONAL_ACCESS_TOKEN_HERE",
"UI_LIBRARY": "YOUR_UI_LIBRARY_HERE"
}
}
}
}
Frequently asked questions
Cosmic is categorized under Developer Tools and uses a local stdio subprocess. Shadcn Ui MCP Server belongs to Developer Tools and uses a local stdio subprocess. Pick Cosmic for developer tools work and Shadcn Ui MCP Server for developer tools.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Cosmic has no declared pricing — check the project's own site. Shadcn Ui MCP Server is listed as free. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add cosmic and jpisnice-shadcn-ui-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Cosmic has a quality signal of 56/100 (Good) with 1 views, 0 installs and 1 GitHub stars. Shadcn Ui MCP Server has 72/100 (Great) with 3 views, 0 installs and 3,068 GitHub stars.