# Anthropic SDK with zurelay

> Official Claude libraries for Python and TS. Made by Anthropic.

Source: https://zurelay.com/docs/integrations/anthropic-sdk

The examples use `claude-opus-5-5`. Any Claude model ID from [the models page](https://zurelay.com/docs/models) works.

## Set it up

1. Install the SDK: `pip install anthropic` or `npm install @anthropic-ai/sdk`.
2. Set the base URL to `https://api.zurelay.com`, with no `/v1`. The SDK adds `/v1/messages` itself.
3. Use a Claude model ID. Other models answer on the OpenAI-compatible URL.

## Configuration

**Python** (`app.py`):

```python
import os
from anthropic import Anthropic

client = Anthropic(
    base_url="https://api.zurelay.com",
    api_key=os.environ["ZURELAY_API_KEY"],
)

message = client.messages.create(
    model="claude-opus-5-5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}],
)

print(message.content[0].text)
```

**TypeScript** (`app.ts`):

```typescript
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://api.zurelay.com",
  apiKey: process.env.ZURELAY_API_KEY,
});

const message = await client.messages.create({
  model: "claude-opus-5-5",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Hello" }],
});

console.log(message.content);
```

> **Note:** Both SDKs also read `ANTHROPIC_BASE_URL` and `ANTHROPIC_API_KEY` from the environment.

[Anthropic SDK’s own docs](https://platform.claude.com/docs/en/cli-sdks-libraries/overview)