Shadcn CLI

How it works

The CLI reads your project's components.json, fetches the block from our registry, and integrates it into your codebase. For each block it:

• writes the block's source into your project at the right paths;
• installs any npm dependencies the block needs;
• adds the shadcn/ui components it builds on, like Button or Card;
• respects your aliases, style, and Tailwind setup, so the code fits your project.

Free blocks

Blocks in the free collections need no account or key. On a block's Code tab, copy the command and run it. It installs straight from the block's URL:

npx shadcn@latest add "https://www.shadcn-ui-blocks.com/r/<block>.json"

Blocks you own

Paid blocks are served from the @shadcn-ui-blocks registry and authorized with an API key. Set it up once, then install any block you own by name.

1. 1

   Create an API key

   Go to API keys in your account and create one. It is shown only once, so copy it straight away. Keys look like sk_live_….

2. 2

   Register the namespace

   Add the registry to your project's components.json. The CLI swaps {name} for the block you install.

   components.json

   {
     "registries": {
       "@shadcn-ui-blocks": {
         "url": "https://www.shadcn-ui-blocks.com/r/{name}.json",
         "headers": {
           "Authorization": "Bearer ${SHADCN_UI_BLOCKS_API_KEY}"
         }
       }
     }
   }

3. 3

   Add your key

   Put the key in .env.local so it is never committed. The CLI reads it from the environment.

   .env.local

   SHADCN_UI_BLOCKS_API_KEY=sk_live_your_key_here

4. 4

   Install a block

   Install any block you own by name:

   npmpnpmyarnbun

   npx shadcn@latest add @shadcn-ui-blocks/modern-saas-hero-sections-centered-with-backdrop

Troubleshooting

• 401 Unauthorized. The key is missing or invalid. Check that SHADCN_UI_BLOCKS_API_KEY is set in .env.local and that the components.json header matches it, then run the command again from your project root.
• 403 Forbidden. The key is valid, but the account does not own this collection. Buy the plan that includes it, or use a key from an account that owns it.
• Key not picked up. Some shells cache the environment. Open a fresh terminal after editing .env.local and try again.