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chore: Update SDK documentation (#2834)

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---
title: telemetry
sidebarTitle: telemetry
---
# `fastmcp.server.telemetry`
Server-side telemetry helpers.
## Functions
### `get_auth_span_attributes` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/telemetry.py#L13" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_auth_span_attributes() -> dict[str, str]
```
Get auth attributes for the current request, if authenticated.
### `get_session_span_attributes` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/telemetry.py#L30" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_session_span_attributes() -> dict[str, str]
```
Get session attributes for the current request.
### `server_span` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/telemetry.py#L56" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
server_span(name: str, method: str, server_name: str, component_type: str, component_key: str, resource_uri: str | None = None) -> Generator[Span, None, None]
```
Create a SERVER span with standard MCP attributes and auth context.
Automatically records any exception on the span and sets error status.
### `delegate_span` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/telemetry.py#L100" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
delegate_span(name: str, provider_type: str, component_key: str) -> Generator[Span, None, None]
```
Create an INTERNAL span for provider delegation.
Used by FastMCPProvider when delegating to mounted servers.
Automatically records any exception on the span and sets error status.