Struct McpClient 

pub struct McpClient { /* private fields */ }

High-level MCP client that manages connection lifecycle and protocol.

Implementations

impl McpClient

pub async fn connect_stdio( command: &str, args: &[&str], env: Option<HashMap<String, String>>, ) -> Result<Self, McpError>

Connect to an MCP server via stdio (spawn a child process).

Uses the default per-request timeout (DEFAULT_REQUEST_TIMEOUT, 30 s). For a custom timeout, use McpClient::connect_stdio_with_config.

pub async fn connect_stdio_with_config( command: &str, args: &[&str], env: Option<HashMap<String, String>>, config: McpClientConfig, ) -> Result<Self, McpError>

Connect to an MCP server via stdio with custom configuration.

pub async fn connect_http(url: &str) -> Result<Self, McpError>

Connect to an MCP server via HTTP.

Uses the default per-request timeout (DEFAULT_REQUEST_TIMEOUT, 30 s). For a custom timeout, use McpClient::connect_http_with_config.

pub async fn connect_http_with_config( url: &str, config: McpClientConfig, ) -> Result<Self, McpError>

Connect to an MCP server via HTTP with custom configuration.

pub fn from_transport(transport: Box<dyn McpTransport>) -> Self

Create from an existing transport (useful for testing).

pub async fn initialize(&mut self) -> Result<ServerInfo, McpError>

Initialize the MCP connection (handshake).

pub async fn list_tools(&self) -> Result<Vec<McpToolInfo>, McpError>

List available tools from the server.

pub async fn call_tool( &self, name: &str, arguments: Value, ) -> Result<McpToolCallResult, McpError>

Call a tool on the server.

pub async fn close(&self) -> Result<(), McpError>

Close the connection.

pub fn server_info(&self) -> Option<&ServerInfo>

Get server info (available after initialize).