---
title: pagination
sidebarTitle: pagination
---

# `fastmcp.utilities.pagination`


Pagination utilities for MCP list operations.

## Functions

### `paginate_sequence` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/fastmcp_slim/fastmcp/utilities/pagination.py#L50" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
paginate_sequence(items: Sequence[T], cursor: str | None, page_size: int) -> tuple[list[T], str | None]
```


Paginate a sequence of items.

**Args:**
- `items`: The full sequence to paginate.
- `cursor`: Optional cursor from a previous request. None for first page.
- `page_size`: Maximum number of items per page.

**Returns:**
- Tuple of (page_items, next_cursor). next_cursor is None if no more pages.

**Raises:**
- `ValueError`: If the cursor is invalid.


## Classes

### `CursorState` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/fastmcp_slim/fastmcp/utilities/pagination.py#L16" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>


Internal representation of pagination cursor state.

The cursor encodes the offset into the result set. This is opaque to clients
per the MCP spec - they should not parse or modify cursors.


**Methods:**

#### `encode` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/fastmcp_slim/fastmcp/utilities/pagination.py#L25" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
encode(self) -> str
```

Encode cursor state to an opaque string.


#### `decode` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/fastmcp_slim/fastmcp/utilities/pagination.py#L31" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
decode(cls, cursor: str) -> CursorState
```

Decode cursor from an opaque string.

**Raises:**
- `ValueError`: If the cursor is invalid or malformed.

