> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prefect.io/llms.txt
> Use this file to discover all available pages before exploring further.

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# block

# `prefect.cli.block`

Block command — native cyclopts implementation.

Manage blocks and block types.

## Functions

### `register` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L163" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
register()
```

Register blocks types within a module or file.

This makes the blocks available for configuration via the UI.
If a block type has already been registered, its registration will be updated to
match the block's current definition.

### `block_ls` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L263" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
block_ls()
```

View all configured blocks.

### `block_delete` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L309" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
block_delete(slug: Annotated[Optional[str], cyclopts.Parameter(help="A block slug. Formatted as '<BLOCK_TYPE_SLUG>/<BLOCK_NAME>'")] = None)
```

Delete a configured block.

### `block_create` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L366" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
block_create(block_type_slug: Annotated[str, cyclopts.Parameter(help='A block type slug. View available types with: prefect block type ls', show_default=False)])
```

Generate a link to the Prefect UI to create a block.

### `block_inspect` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L408" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
block_inspect(slug: Annotated[Optional[str], cyclopts.Parameter(help='A Block slug: <BLOCK_TYPE_SLUG>/<BLOCK_NAME>')] = None)
```

Displays details about a configured block.

### `list_types` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L472" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
list_types()
```

List all block types.

### `blocktype_inspect` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L526" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
blocktype_inspect(slug: Annotated[str, cyclopts.Parameter(help='A block type slug')])
```

Display details about a block type.

### `blocktype_delete` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/cli/block.py#L583" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
blocktype_delete(slug: Annotated[str, cyclopts.Parameter(help='A Block type slug')])
```

Delete an unprotected Block Type.


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