> ## Documentation Index
> Fetch the complete documentation index at: https://www.adaline.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Anthropic

> Integrate Anthropic Claude models through the Adaline Proxy for automatic telemetry and observability.

# Anthropic

Integrate Anthropic Claude models through the Adaline Proxy to automatically capture telemetry — requests, responses, token usage, latency, and costs — with minimal code changes.

## Supported Models

**Chat Models**

| Model                        | Description                              |
| ---------------------------- | ---------------------------------------- |
| `claude-opus-4-6`            | Latest Opus model                        |
| `claude-opus-4-5-20251101`   | Claude Opus 4.5                          |
| `claude-4-opus-20250514`     | Claude 4 Opus                            |
| `claude-sonnet-4-6`          | Latest Sonnet model                      |
| `claude-sonnet-4-5-20250929` | Claude Sonnet 4.5                        |
| `claude-4-sonnet-20250514`   | Claude 4 Sonnet                          |
| `claude-haiku-4-5-20251001`  | Claude Haiku 4.5                         |
| `claude-3-7-sonnet-20250219` | Claude 3.7 Sonnet with extended thinking |
| `claude-3-5-sonnet-20241022` | Claude 3.5 Sonnet v2                     |
| `claude-3-5-sonnet-20240620` | Claude 3.5 Sonnet v1                     |
| `claude-3-5-haiku-20241022`  | Fast and compact Claude 3.5              |
| `claude-3-opus-20240229`     | Claude 3 Opus                            |
| `claude-3-sonnet-20240229`   | Claude 3 Sonnet                          |
| `claude-3-haiku-20240307`    | Fastest Claude 3 model                   |

**Embedding Models (Voyage)**

| Model                   | Description                  |
| ----------------------- | ---------------------------- |
| `voyage-3`              | General-purpose embeddings   |
| `voyage-3-lite`         | Lightweight embeddings       |
| `voyage-code-2`         | Optimized for code           |
| `voyage-law-2`          | Optimized for legal text     |
| `voyage-multilingual-2` | Multilingual embeddings      |
| `voyage-finance-2`      | Optimized for financial text |

## Proxy Base URL

```
https://gateway.adaline.ai/v1/anthropic/
```

## Prerequisites

1. An [Anthropic API key](https://console.anthropic.com/settings/keys)
2. An [Adaline API key](/docs/admin/create-api-keys), project ID, and prompt ID

## Chat Completions

### Complete Chat

<CodeGroup>
  ```python Python theme={null}
  import anthropic

  client = anthropic.Anthropic(
      api_key="your-anthropic-api-key",
      base_url="https://gateway.adaline.ai/v1/anthropic/"
  )

  headers = {
      "adaline-api-key": "your-adaline-api-key",
      "adaline-project-id": "your-project-id",
      "adaline-prompt-id": "your-prompt-id"
  }

  response = client.messages.create(
      model="claude-3-5-sonnet-20241022",
      max_tokens=1000,
      messages=[
          {"role": "user", "content": "What is artificial intelligence?"}
      ],
      extra_headers=headers
  )

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

  ```typescript TypeScript theme={null}
  import Anthropic from "@anthropic-ai/sdk";

  const client = new Anthropic({
    apiKey: "your-anthropic-api-key",
    baseURL: "https://gateway.adaline.ai/v1/anthropic/",
  });

  const response = await client.messages.create(
    {
      model: "claude-3-5-sonnet-20241022",
      max_tokens: 1000,
      messages: [
        { role: "user", content: "What is artificial intelligence?" },
      ],
    },
    {
      headers: {
        "adaline-api-key": "your-adaline-api-key",
        "adaline-project-id": "your-project-id",
        "adaline-prompt-id": "your-prompt-id",
      },
    }
  );

  console.log(response.content[0].text);
  ```
</CodeGroup>

### Stream Chat

<CodeGroup>
  ```python Python theme={null}
  import anthropic

  client = anthropic.Anthropic(
      api_key="your-anthropic-api-key",
      base_url="https://gateway.adaline.ai/v1/anthropic/"
  )

  headers = {
      "adaline-api-key": "your-adaline-api-key",
      "adaline-project-id": "your-project-id",
      "adaline-prompt-id": "your-prompt-id"
  }

  stream = client.messages.create(
      model="claude-3-5-sonnet-20241022",
      max_tokens=1000,
      messages=[
          {"role": "user", "content": "Explain the theory of relativity in simple terms."}
      ],
      stream=True,
      extra_headers=headers
  )

  for event in stream:
      if event.type == "content_block_delta":
          print(event.delta.text, end="")
  ```

  ```typescript TypeScript theme={null}
  import Anthropic from "@anthropic-ai/sdk";

  const client = new Anthropic({
    apiKey: "your-anthropic-api-key",
    baseURL: "https://gateway.adaline.ai/v1/anthropic/",
  });

  const stream = client.messages.stream(
    {
      model: "claude-3-5-sonnet-20241022",
      max_tokens: 1000,
      messages: [
        { role: "user", content: "Explain the theory of relativity in simple terms." },
      ],
    },
    {
      headers: {
        "adaline-api-key": "your-adaline-api-key",
        "adaline-project-id": "your-project-id",
        "adaline-prompt-id": "your-prompt-id",
      },
    }
  );

  for await (const event of stream) {
    if (event.type === "content_block_delta" && event.delta.type === "text_delta") {
      process.stdout.write(event.delta.text);
    }
  }
  ```
</CodeGroup>

## Optional Headers

Customize tracing behavior with optional headers:

```python theme={null}
headers = {
    # Required
    "adaline-api-key": "your-adaline-api-key",
    "adaline-project-id": "your-project-id",
    "adaline-prompt-id": "your-prompt-id",
    # Optional
    "adaline-trace-name": "anthropic-chat-completion",
    "adaline-trace-session-id": "user-session-123",
    "adaline-span-name": "claude-sonnet-call",
}
```

See the full [Headers Reference](/docs/reference/proxy/headers) for all available options.

## Next Steps

* [Multi-Step Workflows](/docs/integrations/examples/multi-step-workflows) — RAG pipelines, multi-step generation, and conversational agents
* [Headers Reference](/docs/reference/proxy/headers) — Complete header documentation

***

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