Module mcp_client 

MCP client implementation

Module provides the main MCP client that can connect to MCP servers, initialize connections, and perform operations like calling tools, reading resources, and executing prompts according to the Model Context Protocol specification.

Standards-track and proprietary HTTP

Use McpClient::connect_with_http for standards-track MCP, including MCP 2026 request-scoped subscription SSE. The optional chunked-encoding feature exposes historical Prism-specific endpoints:

[dependencies]
prism-mcp-rs = { version = "3", features = ["chunked-encoding"] }

Those helpers require explicit ProtocolMode::LegacyOnly and a peer that implements the same proprietary routes; automatic transport selection never chooses them.

Structs

ClientConfig

Configuration for the MCP client

McpClient

Main MCP client implementation

McpClientBuilder

Client builder for easier construction

TransportInfo

Information about a transport for comparison

Enums

TransportUseCase

Transport use case guide for automatic selection