# Using Anthropic Claude with Kilo Code

> Configure Anthropic's Claude models in Kilo Code. Guide to getting an API key, setting up Claude Sonnet and Opus in VS Code and the CLI.

- 网址：https://funcoding.ai/agents/kilo-code/ai-providers/anthropic/
- 来源：Kilo Code 官方文档原文（英文），MIT 许可，同步于 2026-10-11
- 官方原文：https://kilo.ai/docs/ai-providers/anthropic

---
Anthropic is an AI safety and research company that builds reliable, interpretable, and steerable AI systems. Their Claude models are known for their strong reasoning abilities, helpfulness, and honesty.

**Website:** [https://www.anthropic.com/](https://www.anthropic.com/)

## Getting an API Key

1.  **Sign Up/Sign In:** Go to the [Anthropic Console](https://console.anthropic.com/). Create an account or sign in.
2.  **Navigate to API Keys:** Go to the [API keys](https://console.anthropic.com/settings/keys) section.
3.  **Create a Key:** Click "Create Key". Give your key a descriptive name (e.g., "Kilo Code").
4.  **Copy the Key:** **Important:** Copy the API key _immediately_. You will not be able to see it again. Store it securely.

## Configuration in Kilo Code

**VSCode**

Open **Settings** (gear icon) and go to the **Providers** tab to add Anthropic and enter your API key.

The extension stores this in your `kilo.json` config file. You can also edit the config file directly — see the **CLI** tab for the file format.

**CLI**

Set the API key as an environment variable or configure it in your `kilo.json` config file:

**Environment variable:**

```bash
export ANTHROPIC_API_KEY="your-api-key"
```

**Config file** (`~/.config/kilo/kilo.json` or `./kilo.json`):

```jsonc
{
  "provider": {
    "anthropic": {
      "env": ["ANTHROPIC_API_KEY"],
    },
  },
}
```

Then set your default model:

```jsonc
{
  "model": "anthropic/claude-sonnet-4-20250514",
}
```

## Tips and Notes

- **Prompt Caching:** Claude 3 models support [prompt caching](https://docs.anthropic.com/en/docs/build-with-claude/prompt-caching), which can significantly reduce costs and latency for repeated prompts.
- **Context Window:** Claude models have large context windows (200,000 tokens), allowing you to include a significant amount of code and context in your prompts.
- **Pricing:** Refer to the [Anthropic Pricing](https://www.anthropic.com/pricing) page for the latest pricing information.
- **Rate Limits:** Anthropic has strict rate limits based on [usage tiers](https://docs.anthropic.com/en/api/rate-limits#requirements-to-advance-tier). If you're repeatedly hitting rate limits, consider contacting Anthropic sales or accessing Claude through a different provider like [OpenRouter](https://funcoding.ai/agents/kilo-code/ai-providers/openrouter/) or [Requesty](https://funcoding.ai/agents/kilo-code/ai-providers/requesty/).