Delegate McpMessageHandler

Namespace

ModelContextProtocol.Server

Assembly

ModelContextProtocol.Core.dll

Delegate type for handling incoming JSON-RPC messages.

public delegate Task McpMessageHandler(MessageContext context, CancellationToken cancellationToken)

Parameters

context MessageContext

The message context containing the JSON-RPC message and other metadata.

cancellationToken CancellationToken

A cancellation token to cancel the operation.

Returns

Task

A task representing the asynchronous operation.

Remarks

This delegate can handle any type of JSON-RPC message, including requests, notifications, responses, and errors. Use this for implementing cross-cutting concerns that need to intercept all message types, such as logging, authentication, rate limiting, or request tracing.

For request-specific handling, use McpRequestHandler<TParams, TResult> instead.