Claude Messages

• Route: POST /v1/messages
• Protocol shape aligned with Claude Messages API
• Successful responses are Claude original JSON or Claude original SSE, without wrapping code / data

Request Example

curl https://api.magickapi.com/v1/messages \
  -H "x-api-key: YOUR_API_KEY" \
  -H "anthropic-version: 2025-10-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "claude-sonnet-4-5-20250929",
    "system": "You are a professional AI assistant.",
    "max_tokens": 1024,
    "messages": [
      {
        "role": "user",
        "content": "Hello, world"
      }
    ]
  }'

Successful Response Example

{
  "id": "msg_013Zva2CMHLNnXjNJJKqJ2EF",
  "type": "message",
  "role": "assistant",
  "content": [
    {
      "type": "text",
      "text": "Hello! I am Claude."
    }
  ],
  "model": "claude-sonnet-4-5-20250929",
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {
    "input_tokens": 12,
    "output_tokens": 18
  }
}

Error Response Example

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "Invalid request parameters"
  }
}

Authentication

x-api-key

• Type: string
• Required: Yes

anthropic-version

• Type: string

• Required: Yes

  It is recommended to be sent normally by Claude SDK or Claude Code following the Anthropic protocol.

Common Parameters

model

• Type: string
• Required: Yes

system

• Type: string | array

  Claude's system prompt is an independent parameter and is not placed inside messages.

messages

• Type: array

• Required: Yes

  Supports user / assistant roles.

max_tokens

• Type: integer

stream

• Type: boolean

  When set to true, returns Claude original SSE event stream.

tools / tool_choice

• Type: array / object

  The current project transparently passes tool-related fields according to the Claude native protocol.

Multimodal and Extended Capabilities

• Text content: Supported
• Image content: Supported
• Tool calling: Supported
• Streaming response: Supported
• thinking / output_config / context_management: The project DTO already supports these; they can be sent according to Claude protocol fields.

Compatibility Notes

• If you are using Claude Code, please refer to "Development Tools / Claude Code Usage Guide" first.