Package org.mcpjava.server

package org.mcpjava.server

Core annotations and APIs for building Model Context Protocol (MCP) servers.

• @McpServer - Marks a class as an MCP server component
• @MetaField - Adds custom metadata fields to MCP definitions
• Cancellation - Request cancellation handling
• ContentEncoder - Custom content encoding
• @Icons - Assigns icons to tools, resources and prompts
• McpException - Base MCP exception
• McpRequest - Request metadata

Related Packages

Package	Description
org.mcpjava.server.completion	Provide auto-completion functionality to the client.
org.mcpjava.server.content	Content blocks, for inclusion in resources and tool call responses.
org.mcpjava.server.progress	Report progress for long-running operations.
org.mcpjava.server.prompts	Define MCP prompts.
org.mcpjava.server.resources	Define MCP resources and resource templates.
org.mcpjava.server.spi	Mechanism for providing the implementation of the API.
org.mcpjava.server.tools	Define MCP tools.

Class	Description
Cancellation	Interface for determining if an MCP client requested cancellation of an in-progress request.
Cancellation.OperationCancelledException	Exception indicating that an MCP request cannot be completed because it was cancelled by the client.
Cancellation.Result	Result of a cancellation check.
ContentEncoder<T>	Encodes an object into MCP content.
FeatureType	The types of features that an MCP server implemented with this API can provide.
Icon	Represents an icon that can be associated with tools, resources, or prompts.
Icon.Builder	Builder for creating icons.
Icon.Theme	The theme for an icon
IconProvider	Provides icons for a prompt, resource, or tool.
Icons	Indicates an IconProvider which can provide icons for the annotated Tool, Resource, Resource Template or Prompt.
ImplementationInfo	Provides information about a client or server MCP implementation
McpException	Base exception for MCP-related errors.
McpRequest	Provides information about the current request, including the request ID and the metadata fields.
McpServer	Binds features (tools, prompts, resources) to a named MCP server configuration.
McpServer.McpServers	Container annotation for McpServer
MetaCarrier	Super-interface for API types which include data in a _meta field.
MetaCarrier.Builder<THIS extends MetaCarrier.Builder<THIS>>	Super-interface for builders which can include data in a _meta field.
MetaField	Adds custom metadata fields to the _meta object in MCP definitions.
MetaField.MetaFields	Container annotation for multiple MetaField annotations.
MetaField.Type	The type of metadata value.
Role	Indicates the sender or receiver of a message for prompting and sampling, or the audience for a resource