Claude · Schema

MessageParam

An input message in the conversation.

Artificial IntelligenceChatbotConversational AIGenerative AILarge Language ModelsMachine LearningNatural Language Processing

Properties

Name Type Description
role string The role of the message author.
content string The content of the message. Can be a string or array of content blocks.
View JSON Schema on GitHub

JSON Schema

claude-messages-message-param-schema.json Raw ↑ 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "MessageParam",
  "type": "object",
  "description": "An input message in the conversation.",
  "properties": {
    "role": {
      "type": "string",
      "description": "The role of the message author."
    },
    "content": {
      "type": "string",
      "description": "The content of the message. Can be a string or array of content blocks."
    }
  }
}