Module content 

Message content types

This module contains all content block types used in MCP messages. Content blocks allow rich message composition with text, images, audio, and resource references.

Content Types

• ContentBlock - Content block enum (text, image, audio, resource link, embedded resource)
• TextContent - Plain text content with annotations
• ImageContent - Base64-encoded image content
• AudioContent - Base64-encoded audio content
• ResourceLink - Reference to external resource
• EmbeddedResource - Embedded resource content
• ContentType - Content type enumeration (JSON/Binary/Text)

Structs

AudioContent

Audio content per MCP 2025-06-18 specification

BlobResourceContents

Binary resource contents

EmbeddedResource

Embedded resource content per MCP 2025-06-18 specification

ImageContent

Image content per MCP 2025-06-18 specification

ResourceLink

Resource link per MCP 2025-06-18 specification

TextContent

Text content per MCP 2025-06-18 specification

TextResourceContents

Text resource contents

Enums

ContentBlock

Content block union type per MCP 2025-06-18 specification

ContentType

Content type enumeration

ResourceContent

Union type for resource contents (text or binary)

Type Aliases

Content

Compatibility alias for the old Content enum