---
title: "Runner"
description: "Server runner for different transport types API Documentation"
icon: "code"
github: "https://github.com/mcp-use/mcp-use/blob/main/libraries/python/mcp_use/server/runner.py"
---

import {RandomGradientBackground} from "/snippets/gradient.jsx"

<Callout type="info" title="Source Code">
View the source code for this module on GitHub: <a href='https://github.com/mcp-use/mcp-use/blob/main/libraries/python/mcp_use/server/runner.py' target='_blank' rel='noopener noreferrer'>https://github.com/mcp-use/mcp-use/blob/main/libraries/python/mcp_use/server/runner.py</a>
</Callout>

Server runner for different transport types.

## ServerRunner

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<div className="text-black">
<div className="text-black font-bold text-xl mb-2 mt-8"><code className="!text-black">class</code> ServerRunner</div>

Handles running the server with different transport types.

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```python
from mcp_use.server.runner import ServerRunner
```

<Card type="info">
### `method` __init__

**Parameters**
><ParamField body="server" type="MCPServer" required="True" >   Server name or configuration </ParamField>

**Signature**
```python wrap
def __init__(server: MCPServer):
```

</Card>
<Card type="info">
### `method` run

Run the MCP server.



**Parameters**
><ParamField body="transport" type="Literal" default='streamable-http' >   Transport protocol to use ("stdio", "streamable-http" or "sse") </ParamField>
><ParamField body="host" type="str" default='127.0.0.1' >   Host to bind to </ParamField>
><ParamField body="port" type="int" default="8000" >   Port to bind to </ParamField>
><ParamField body="reload" type="bool" default="False" >   Whether to enable auto-reload </ParamField>

**Signature**
```python wrap
def run(
transport: Literal = "streamable-http",
    host: str = "127.0.0.1",
    port: int = 8000,
    reload: bool = False
):
```

</Card>

<Card type="info">
### `method` run_sse_async

Run the server using SSE transport.


**Parameters**
><ParamField body="host" type="str" default='127.0.0.1' >   String value </ParamField>
><ParamField body="port" type="int" default="8000" >   Integer value </ParamField>
><ParamField body="reload" type="bool" default="False" >   Boolean flag </ParamField>

**Signature**
```python wrap
def run_sse_async(host: str = "127.0.0.1", port: int = 8000, reload: bool = False):
```

</Card>

<Card type="info">
### `method` run_streamable_http_async

Run the server using StreamableHTTP transport.


**Parameters**
><ParamField body="host" type="str" default='127.0.0.1' >   String value </ParamField>
><ParamField body="port" type="int" default="8000" >   Integer value </ParamField>
><ParamField body="reload" type="bool" default="False" >   Boolean flag </ParamField>

**Signature**
```python wrap
def run_streamable_http_async(host: str = "127.0.0.1", port: int = 8000, reload: bool = False):
```

</Card>

<Card type="info">
### `method` serve_starlette_app


**Parameters**
><ParamField body="starlette_app" type="starlette.applications.Starlette" required="True" >   Parameter value </ParamField>
><ParamField body="host" type="str" default='127.0.0.1' >   String value </ParamField>
><ParamField body="port" type="int" default="8000" >   Integer value </ParamField>
><ParamField body="transport" type="Literal | None" default="None" >   Parameter value </ParamField>
><ParamField body="reload" type="bool" default="False" >   Boolean flag </ParamField>

**Signature**
```python wrap
def serve_starlette_app(
starlette_app: starlette.applications.Starlette,
    host: str = "127.0.0.1",
    port: int = 8000,
    transport: Literal | None = None,
    reload: bool = False
):
```

</Card>

</div>
