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title: middleware
sidebarTitle: middleware
---
# `fastmcp.server.middleware.middleware`
## Functions
### `make_middleware_wrapper` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L106"><Icon icon="github" size="14" /></a></sup>
```python
make_middleware_wrapper(middleware: Middleware, call_next: CallNext[T, R]) -> CallNext[T, R]
```
Create a wrapper that applies a single middleware to a context. The
closure bakes in the middleware and call_next function, so it can be
passed to other functions that expect a call_next function.
## Classes
### `CallNext` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L36"><Icon icon="github" size="14" /></a></sup>
### `CallToolResult` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L56"><Icon icon="github" size="14" /></a></sup>
### `ListToolsResult` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L62"><Icon icon="github" size="14" /></a></sup>
### `ListResourcesResult` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L67"><Icon icon="github" size="14" /></a></sup>
### `ListResourceTemplatesResult` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L72"><Icon icon="github" size="14" /></a></sup>
### `ListPromptsResult` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L77"><Icon icon="github" size="14" /></a></sup>
### `ServerResultProtocol` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L82"><Icon icon="github" size="14" /></a></sup>
### `MiddlewareContext` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L87"><Icon icon="github" size="14" /></a></sup>
Unified context for all middleware operations.
**Methods:**
#### `copy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L102"><Icon icon="github" size="14" /></a></sup>
```python
copy(self, **kwargs: Any) -> MiddlewareContext[T]
```
### `Middleware` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/middleware/middleware.py#L119"><Icon icon="github" size="14" /></a></sup>
Base class for FastMCP middleware with dispatching hooks.
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