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portia.mcp_session

Configuration and client code for interactions with Model Context Protocol (MCP) servers.

This module provides a context manager for creating MCP ClientSessions, which are used to interact with MCP servers. It supports both the SSE and stdio transports.

NB. The MCP Python SDK is asynchronous, so care must be taken when using MCP functionality from this module in an async context.

Classes: SseMcpClientConfig: Configuration for an MCP client that connects via SSE. StdioMcpClientConfig: Configuration for an MCP client that connects via stdio. McpClientConfig: The configuration to connect to an MCP server.

SseMcpClientConfig Objects​

class SseMcpClientConfig(BaseModel)

Configuration for an MCP client that connects via SSE.

StdioMcpClientConfig Objects​

class StdioMcpClientConfig(BaseModel)

Configuration for an MCP client that connects via stdio.

get_mcp_session​

@asynccontextmanager
async def get_mcp_session(
        mcp_client_config: McpClientConfig) -> AsyncIterator[ClientSession]

Context manager for an MCP ClientSession.

Arguments:

  • mcp_client_config - The configuration to connect to an MCP server

Returns:

An MCP ClientSession