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POST
/
spotlight
/
anthropic
/
v1
/
messages
Send Messages
curl --request POST \
  --url https://api.app.shinzo.ai/spotlight/anthropic/v1/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "messages": [
    {}
  ],
  "max_tokens": 123,
  "metadata": {},
  "stream": true
}
'

​
Send Messages

Forward message requests to Anthropic’s Claude API through Spotlight. All requests are automatically tracked for analytics.

​
Authentication

Requires JWT token or Platform API key: 
Authorization: Bearer <jwt_token_or_api_key>
# or
x-shinzo-api-key: <api_key>

​
Provider Credentials

Provider credentials can be supplied in two ways:
  1. Stored credentials: If you have saved a provider key, it will be used automatically
  2. Pass-through header: Include the provider’s API key directly:
x-api-key: sk-ant-api03-...
The request body follows Anthropic’s Messages API format. See Anthropic’s documentation for full details.
​
model
string
required
Model to use (e.g., claude-sonnet-4-20250514)
​
messages
array
required
Array of message objects
​
max_tokens
integer
required
Maximum tokens to generate
​
metadata
object
Metadata including user_id for session tracking
​
stream
boolean
Enable streaming responses

​
Example Request

curl -X POST https://api.app.shinzo.ai/spotlight/anthropic/v1/messages \
  -H "Authorization: Bearer <jwt_token>" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-20250514",
    "max_tokens": 1024,
    "messages": [
      {"role": "user", "content": "Hello, Claude!"}
    ],
    "metadata": {
      "user_id": "my-app-session-123"
    }
  }'

​
Response

Standard Anthropic Messages API response: 
{
  "id": "msg_abc123",
  "type": "message",
  "role": "assistant",
  "content": [
    {
      "type": "text",
      "text": "Hello! How can I help you today?"
    }
  ],
  "model": "claude-sonnet-4-20250514",
  "stop_reason": "end_turn",
  "usage": {
    "input_tokens": 12,
    "output_tokens": 15
  }
}

​
Streaming

Enable streaming by setting stream: true: 
curl -X POST https://api.app.shinzo.ai/spotlight/anthropic/v1/messages \
  -H "Authorization: Bearer <jwt_token>" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-20250514",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello!"}],
    "stream": true
  }'
Streaming responses use Server-Sent Events (SSE) format.

​
Session Tracking

Use the metadata.user_id field to group requests into sessions: 
{
  "metadata": {
    "user_id": "user-123-session-456"
  }
}
Sessions are then available in Session Analytics.

​
Timeout

Request timeout is 3 minutes (180,000ms) to accommodate long-running generations.

​
Status Codes

CodeDescription
200Success
400Invalid request
401Invalid authentication
403Provider key not found or feature not enabled
429Rate limit exceeded
500Internal error or provider error