引用

curl https://api.anthropic.com/v1/messages \
  -H "content-type: application/json" \
  -H "x-api-key: $ANTHROPIC_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "claude-sonnet-4-5",
    "max_tokens": 1024,
    "messages": [
      {
        "role": "user",
        "content": [
          {
            "type": "document",
            "source": {
              "type": "text",
              "media_type": "text/plain",
              "data": "The grass is green. The sky is blue."
            },
            "title": "My Document",
            "context": "This is a trustworthy document.",
            "citations": {"enabled": true}
          },
          {
            "type": "text",
            "text": "What color is the grass and sky?"
          }
        ]
      }
    ]
  }'

import anthropic

client = anthropic.Anthropic()

response = client.messages.create(
    model="claude-sonnet-4-5",
    max_tokens=1024,
    messages=[
        {
            "role": "user",
            "content": [
                {
                    "type": "document",
                    "source": {
                        "type": "text",
                        "media_type": "text/plain",
                        "data": "The grass is green. The sky is blue."
                    },
                    "title": "My Document",
                    "context": "This is a trustworthy document.",
                    "citations": {"enabled": True}
                },
                {
                    "type": "text",
                    "text": "What color is the grass and sky?"
                }
            ]
        }
    ]
)
print(response)

import java.util.List;

import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.models.messages.*;

public class DocumentExample {

    public static void main(String[] args) {
        AnthropicClient client = AnthropicOkHttpClient.fromEnv();

        PlainTextSource source = PlainTextSource.builder()
                .data("The grass is green. The sky is blue.")
                .build();

        DocumentBlockParam documentParam = DocumentBlockParam.builder()
                .source(source)
                .title("My Document")
                .context("This is a trustworthy document.")
                .citations(CitationsConfigParam.builder().enabled(true).build())
                .build();
        
        TextBlockParam textBlockParam = TextBlockParam.builder()
                .text("What color is the grass and sky?")
                .build();

        MessageCreateParams params = MessageCreateParams.builder()
                .model(Model.CLAUDE_SONNET_4_20250514)
                .maxTokens(1024)
                .addUserMessageOfBlockParams(List.of(ContentBlockParam.ofDocument(documentParam), ContentBlockParam.ofText(textBlockParam)))
                .build();

        Message message = client.messages().create(params);
        System.out.println(message);
    }
}