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

# Call Tool • Rust AI Agent SDK

> call_tool: Call a tool (placeholder)

# call\_tool

<div className="flex items-center gap-2">
  <Badge color="blue">Async</Badge>
  <Badge color="purple">Method</Badge>
</div>

> This is a method of the [**MCP**](../classes/MCP) class in the [**mcp**](../modules/mcp) module.

Call a tool (placeholder)

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
%%{init: {'theme': 'base', 'themeVariables': { 'primaryColor': '#8B0000', 'primaryTextColor': '#fff', 'primaryBorderColor': '#710101', 'lineColor': '#189AB4', 'secondaryColor': '#189AB4', 'tertiaryColor': '#fff' }}}%%

graph LR
    agent["Agent"] -- "uses" --> tool["Tool: call_tool"]
    tool -- "returns" --> result["Result"]
    style tool fill:#189AB4,color:#fff
    style agent fill:#8B0000,color:#fff
    style result fill:#8B0000,color:#fff
```

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
async def call_tool(&self, call: MCPCall) -> Result<MCPCallResult>
```

## Parameters

<ParamField query="call" type="MCPCall" required={true}>
  No description available.
</ParamField>

### Returns

<ResponseField name="Returns" type="Result<MCPCallResult>">
  The result of the operation.
</ResponseField>

***

## Related Documentation

<CardGroup cols={2}>
  <Card title="Rust Tools" icon="wrench" href="/docs/rust/tools" />

  <Card title="Rust Code Execution" icon="terminal" href="/docs/rust/code-execution" />

  <Card title="Rust Web Search" icon="search" href="/docs/rust/web-search" />
</CardGroup>