Claude Code

The Zuplo AI Gateway supports the Anthropic /v1/messages API endpoint. This means that you can configure Claude Code to work seamlessly via the AI Gateway.

Claude Code Setup

Environment

Code
ANTHROPIC_AUTH_TOKEN=<your-ai-gateway-app-api-key>
ANTHROPIC_BASE_URL=https://my-gateway-main-2e18f50.zuplo.app/config_fe0a04972d2848e0a94ae4b8bcd1497e

Using settings.json

Code
{
  "env": {
    "ANTHROPIC_AUTH_TOKEN": "<your-ai-gateway-app-api-key>",
    "ANTHROPIC_BASE_URL": "https://my-gateway-main-2e18f50.zuplo.app/config_fe0a04972d2848e0a94ae4b8bcd1497e"
  }
}

Restart Claude and it will switch to using your new AI Gateway configuration and all your Claude Code LLM requests will route through the AI Gateway.

Choosing a model

The gateway routes models named as providerName/model, where providerName is the provider name configured in your gateway. Claude Code's default model names don't carry that prefix, so set the model explicitly:

Code
ANTHROPIC_MODEL=anthropic/claude-sonnet-4-5-20250929
ANTHROPIC_SMALL_FAST_MODEL=anthropic/claude-haiku-4-5

The app's Model Filtering policy controls which models the app may use.