Native Claude Format

POST

/v1/messages

Introduction

Claude's native message interface, suitable for native Anthropic clients such as Claude Code. This interface complies with Anthropic's API specifications and provides full feature support for Claude models, including advanced capabilities like Extended Thinking and tool calling.

You can test different scenarios by switching the Body example below or by setting the stream field to true.

All requests share the following headers:

x-api-key: sk-xxx (or use Authorization)

anthropic-version: 2023-06-01

content-type: application/json

When stream=true, the response will be an SSE stream (content-type: text/event-stream), and the event types follow the native Anthropic specification (message_start / content_block_start / content_block_delta / content_block_stop / message_delta / message_stop).

请求参数

Body 参数application/json必填

示例

TextSystem InstructionChatFunction Calling

{
    "model": "claude-sonnet-4.5",
    "max_tokens": 1024,
    "messages": [
        {
            "role": "user",
            "content": "Hello, nice to meet you"
        }
    ]
}

请求示例代码

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

cURL

TextSystem InstructionChatFunction Calling

curl --location 'https://api.peakkai.ai/v1/messages' \
--header 'Content-Type: application/json' \
--data '{
    "model": "claude-sonnet-4.5",
    "max_tokens": 1024,
    "messages": [
        {
            "role": "user",
            "content": "Hello, nice to meet you"
        }
    ]
}'

返回响应

🟢200

application/json

Bodyapplication/json

示例

{
    "model": "claude-sonnet-4-5-20250929",
    "id": "msg_bdrk_01DJBYweRg351XHSgq6JcTsE",
    "type": "message",
    "role": "assistant",
    "content": [
        {
            "type": "text",
            "text": "Hello! Nice to meet you too! How are you doing today? Is there anything I can help you with?"
        }
    ],
    "stop_reason": "end_turn",
    "usage": {
        "input_tokens": 13,
        "cache_creation_input_tokens": 0,
        "cache_read_input_tokens": 0,
        "cache_creation": {
            "ephemeral_5m_input_tokens": 0,
            "ephemeral_1h_input_tokens": 0
        },
        "output_tokens": 26
    }
}

🟠400

🟠401

🟠403

修改于 2026-11-02 09:46:28

Native Gemini Format

Responses Request (openai)

Native Claude Format

Introduction#

请求参数

请求示例代码

返回响应

Introduction