Package io.modelcontextprotocol.spec

Interface Summary

Interface	Description
McpClientSession.NotificationHandler	Functional interface for handling incoming JSON-RPC notifications.
McpClientSession.RequestHandler<T>	Functional interface for handling incoming JSON-RPC requests.
McpClientTransport	Marker interface for the client-side MCP transport.
McpSchema.Annotated	Base for objects that include optional annotations for the client.
McpSchema.CompleteRequest.PromptOrResourceReference
McpSchema.Content
McpSchema.JSONRPCMessage
McpSchema.Request
McpSchema.ResourceContents	The contents of a specific resource or sub-resource.
McpServerSession.Factory	Factory for creating server sessions which delegate to a provided 1:1 transport with a connected client.
McpServerSession.InitNotificationHandler	Notification handler for the initialization notification from the client.
McpServerSession.InitRequestHandler	Request handler for the initialization request.
McpServerSession.NotificationHandler	A handler for client-initiated notifications.
McpServerSession.RequestHandler<T>	A handler for client-initiated requests.
McpServerTransport	Marker interface for the server-side MCP transport.
McpServerTransportProvider	The core building block providing the server-side MCP transport.
McpSession	Represents a Model Control Protocol (MCP) session that handles communication between clients and the server.
McpTransport	Defines the asynchronous transport layer for the Model Context Protocol (MCP).

Class Summary

Class	Description
McpClientSession	Default implementation of the MCP (Model Context Protocol) session that manages bidirectional JSON-RPC communication between clients and servers.
McpClientSession.MethodNotFoundError
McpSchema	Based on the JSON-RPC 2.0 specification and the Model Context Protocol Schema.
McpSchema.Annotations	Optional annotations for the client.
McpSchema.BlobResourceContents	Binary contents of a resource.
McpSchema.CallToolRequest	Used by the client to call a tool provided by the server.
McpSchema.CallToolResult	The server's response to a tools/call request from the client.
McpSchema.ClientCapabilities	Clients can implement additional features to enrich connected MCP servers with additional capabilities.
McpSchema.ClientCapabilities.Builder
McpSchema.ClientCapabilities.RootCapabilities	Roots define the boundaries of where servers can operate within the filesystem, allowing them to understand which directories and files they have access to.
McpSchema.ClientCapabilities.Sampling	Provides a standardized way for servers to request LLM sampling ("completions" or "generations") from language models via clients.
McpSchema.CompleteRequest
McpSchema.CompleteRequest.CompleteArgument
McpSchema.CompleteRequest.PromptReference
McpSchema.CompleteRequest.ResourceReference
McpSchema.CompleteResult
McpSchema.CompleteResult.CompleteCompletion
McpSchema.CreateMessageRequest
McpSchema.CreateMessageRequest.Builder
McpSchema.CreateMessageResult
McpSchema.CreateMessageResult.Builder
McpSchema.EmbeddedResource
McpSchema.ErrorCodes	Standard error codes used in MCP JSON-RPC responses.
McpSchema.GetPromptRequest	Used by the client to get a prompt provided by the server.
McpSchema.GetPromptResult	The server's response to a prompts/get request from the client.
McpSchema.ImageContent
McpSchema.Implementation
McpSchema.InitializeRequest
McpSchema.InitializeResult
McpSchema.JSONRPCBatchRequest
McpSchema.JSONRPCBatchResponse
McpSchema.JSONRPCMessage.SealedControl
McpSchema.JSONRPCNotification
McpSchema.JSONRPCRequest
McpSchema.JSONRPCResponse
McpSchema.JSONRPCResponse.JSONRPCError
McpSchema.JsonSchema
McpSchema.ListPromptsResult	The server's response to a prompts/list request from the client.
McpSchema.ListResourcesResult
McpSchema.ListResourceTemplatesResult
McpSchema.ListRootsResult	The client's response to a roots/list request from the server.
McpSchema.ListToolsResult	The server's response to a tools/list request from the client.
McpSchema.LoggingMessageNotification	The Model Context Protocol (MCP) provides a standardized way for servers to send structured log messages to clients.
McpSchema.LoggingMessageNotification.Builder
McpSchema.ModelHint
McpSchema.ModelPreferences
McpSchema.ModelPreferences.Builder
McpSchema.PaginatedRequest
McpSchema.PaginatedResult
McpSchema.ProgressNotification
McpSchema.Prompt	A prompt or prompt template that the server offers.
McpSchema.PromptArgument	Describes an argument that a prompt can accept.
McpSchema.PromptMessage	Describes a message returned as part of a prompt.
McpSchema.ReadResourceRequest
McpSchema.ReadResourceResult
McpSchema.Resource	A known resource that the server is capable of reading.
McpSchema.ResourceTemplate	Resource templates allow servers to expose parameterized resources using URI templates.
McpSchema.Root	Represents a root directory or file that the server can operate on.
McpSchema.SamplingMessage
McpSchema.ServerCapabilities
McpSchema.ServerCapabilities.Builder
McpSchema.ServerCapabilities.LoggingCapabilities
McpSchema.ServerCapabilities.PromptCapabilities
McpSchema.ServerCapabilities.ResourceCapabilities
McpSchema.ServerCapabilities.ToolCapabilities
McpSchema.SubscribeRequest	Sent from the client to request resources/updated notifications from the server whenever a particular resource changes.
McpSchema.TextContent
McpSchema.TextResourceContents	Text contents of a resource.
McpSchema.Tool	Represents a tool that the server provides.
McpSchema.UnsubscribeRequest
McpServerSession	Represents a Model Control Protocol (MCP) session on the server side.
McpServerSession.MethodNotFoundError
StatelessMcpSession

Enum Summary

Enum	Description
McpSchema.CreateMessageRequest.ContextInclusionStrategy
McpSchema.CreateMessageResult.StopReason
McpSchema.LoggingLevel
McpSchema.Role

Exception Summary

Exception	Description
McpError