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

# RunOptions

Defined in: [server/FastMCP.ts:171](https://github.com/PrefectHQ/fastmcp-ts/blob/e4b6038f642b529f601463a576229747afebe9a4/src/server/FastMCP.ts#L171)

## Properties

### host?

```ts theme={null}
optional host?: string;
```

Defined in: [server/FastMCP.ts:174](https://github.com/PrefectHQ/fastmcp-ts/blob/e4b6038f642b529f601463a576229747afebe9a4/src/server/FastMCP.ts#L174)

***

### path?

```ts theme={null}
optional path?: string;
```

Defined in: [server/FastMCP.ts:175](https://github.com/PrefectHQ/fastmcp-ts/blob/e4b6038f642b529f601463a576229747afebe9a4/src/server/FastMCP.ts#L175)

***

### port?

```ts theme={null}
optional port?: number;
```

Defined in: [server/FastMCP.ts:173](https://github.com/PrefectHQ/fastmcp-ts/blob/e4b6038f642b529f601463a576229747afebe9a4/src/server/FastMCP.ts#L173)

***

### stdin?

```ts theme={null}
optional stdin?: Readable;
```

Defined in: [server/FastMCP.ts:177](https://github.com/PrefectHQ/fastmcp-ts/blob/e4b6038f642b529f601463a576229747afebe9a4/src/server/FastMCP.ts#L177)

Custom stdin stream for the stdio transport. Defaults to process.stdin.

***

### stdout?

```ts theme={null}
optional stdout?: Writable;
```

Defined in: [server/FastMCP.ts:179](https://github.com/PrefectHQ/fastmcp-ts/blob/e4b6038f642b529f601463a576229747afebe9a4/src/server/FastMCP.ts#L179)

Custom stdout stream for the stdio transport. Defaults to process.stdout.

***

### transport?

```ts theme={null}
optional transport?: "stdio" | "http";
```

Defined in: [server/FastMCP.ts:172](https://github.com/PrefectHQ/fastmcp-ts/blob/e4b6038f642b529f601463a576229747afebe9a4/src/server/FastMCP.ts#L172)