Module model 

MCP model types for protocol messages and data structures

Modules

mime_types

MIME type constants for common resource types

stop_reasons

Standard stop reasons for sampling (MCP 2025-11-25)

uri_schemes

URI scheme constants for resource URIs

Structs

Annotations

Resource annotations

CallToolRequestParam

Tool call parameters

CallToolResult

Tool call result

CancelTaskRequestParam

Cancel task request parameters (MCP 2025-11-25)

CancelTaskResult

Cancel task result (MCP 2025-11-25)

CompleteRequestParam

Completion request parameters

CompleteResult

Complete result

CompletionArgument

Completion argument being completed

CompletionContext

Completion context for context-aware completion (MCP 2025-06-18)

CompletionValues

Completion values object

CreateMessageRequestParam

Create message request parameters (MCP 2025-11-25)

CreateMessageResult

Create message result (MCP 2025-11-25)

CreateTaskResult

Result of creating a task-augmented request (MCP 2025-11-25)

CspConfig

Content Security Policy configuration for UI resources

ElicitationCapability

Elicitation capability configuration (MCP 2025-11-25)

ElicitationCompleteNotification

Elicitation completion notification (MCP 2025-11-25)

ElicitationRequestParam

Elicitation request parameters (MCP 2025-11-25 enhanced)

ElicitationResponse

Elicitation response

ElicitationResult

Elicitation result

FormElicitationCapability

Form mode elicitation capability

GetPromptRequestParam

Get prompt parameters

GetPromptResult

Get prompt result

GetTaskRequestParam

Get task request parameters (MCP 2025-11-25)

GetTaskResult

Get task result (MCP 2025-11-25)

GetTaskResultRequestParam

Get task result/payload request parameters (MCP 2025-11-25)

Icon

Icon definition for tools and other resources

Implementation

Server implementation information

InitializeRequestParam

Initialize request parameters

InitializeResult

Initialize result

ListPromptsResult

List prompts result

ListResourceTemplatesResult

List resource templates result

ListResourcesResult

List resources result

ListTasksRequestParam

List tasks request parameters (MCP 2025-11-25)

ListTasksResult

List tasks result (MCP 2025-11-25)

ListToolsResult

List tools result

LoggingCapability

Meta

Metadata for MCP protocol messages (MCP 2025-06-18)

ModelHint

Model hint for model selection (MCP 2025-11-25)

ModelPreferences

Model preferences for sampling requests (MCP 2025-11-25)

PaginatedRequestParam

Pagination parameters

Prompt

Prompt definition

PromptArgument

Prompt argument definition

PromptMessage

Prompt message

PromptsCapability

ProtocolVersion

MCP Protocol version in date format (YYYY-MM-DD)

RawResource

Raw resource (for internal use)

ReadResourceRequestParam

Read resource parameters

ReadResourceResult

Read resource result

Request

JSON-RPC 2.0 Request

Resource

Resource definition

ResourceContents

Resource contents wrapper

ResourceMeta

Resource metadata for extensions

ResourceTemplate

Resource template definition

ResourceUpdatedNotification

Resource updated notification parameters Sent when a subscribed resource changes

ResourcesCapability

Response

JSON-RPC 2.0 Response

SamplingCapability

Sampling capability configuration (MCP 2025-11-25)

SamplingContextCapability

Sampling context capability

SamplingMessage

Sampling message for create message requests (MCP 2025-11-25)

SamplingToolsCapability

Sampling tools capability (MCP 2025-11-25)

ServerCapabilities

Server capabilities configuration

ServerCapabilitiesBuilder

ServerInfo

Server information response

SetLevelRequestParam

Set logging level parameters

SubscribeRequestParam

Subscribe request parameters

Task

Represents an asynchronous task (MCP 2025-11-25 experimental)

TaskCancelCapability

Task cancel capability marker

TaskElicitationCapability

Task elicitation capability

TaskListCapability

Task list capability marker

TaskMetadata

Task metadata for request augmentation (MCP 2025-11-25)

TaskMethodCapability

Marker for a method that supports task augmentation

TaskRequestsCapability

Task requests capability - which methods support task augmentation

TaskSamplingCapability

Task sampling capability

TaskStatusNotification

Task status notification (MCP 2025-11-25)

TaskToolsCapability

Task tools capability

TasksCapability

Tasks capability configuration (MCP 2025-11-25 experimental)

TextContent

Text content struct for compatibility

Tool

Tool definition

ToolAnnotations

Tool annotations for behavioral hints

ToolChoice

Tool choice configuration for sampling (MCP 2025-11-25)

ToolExecution

Tool execution configuration (MCP 2025-11-25)

ToolMeta

Tool metadata for protocol extensions

ToolsCapability

UiResourceMeta

UI resource metadata (MCP Apps Extension - SEP-1865)

UnsubscribeRequestParam

Unsubscribe request parameters

UrlElicitationCapability

URL mode elicitation capability (MCP 2025-11-25)

UrlElicitationInfo

Information about a required URL elicitation (MCP 2025-11-25)

UrlElicitationRequiredData

URL elicitation required error data (MCP 2025-11-25)

Enums

CompletionRef

Reference type for completion requests

Content

Content types for tool responses and sampling messages

ContextInclusion

Context inclusion mode for sampling (MCP 2025-11-25)

ElicitationAction

Elicitation response actions

ElicitationMode

Elicitation mode (MCP 2025-11-25)

LogLevel

Log level based on RFC 5424 syslog severity levels

NumberOrString

A flexible identifier type for JSON-RPC request IDs

PromptMessageContent

Prompt message content

PromptMessageRole

Prompt message role

SamplingContent

Content types for sampling messages (MCP 2025-11-25)

SamplingRole

Sampling message role

TaskStatus

Task status values (MCP 2025-11-25)

TaskSupport

Task support mode for tools (MCP 2025-11-25)

ToolChoiceMode

Tool choice mode (MCP 2025-11-25)

ToolResultContent

Content types that can appear in tool results (MCP 2025-11-25)

Type Aliases

CompletionInfoDeprecated

EmbeddedResourceContents

Embedded resource contents for tool responses (alias for ResourceContents)