---
title: "Anthropic Claude Setup Guide for RewriteBar"
description: "Connect Anthropic Claude to RewriteBar with an API key, select a model, and use Claude for AI writing tasks in any macOS app."
url: "https://rewritebar.com/docs/ai-providers/anthropic"
---

# Anthropic Claude

Use Anthropic Claude with RewriteBar by connecting your Anthropic API key.

## Quick Setup

1. Create or sign in to your Anthropic account at [console.anthropic.com](https://console.anthropic.com/).
2. Create an API key in the Anthropic console.
3. Open RewriteBar and go to **Preferences** → **AI Provider** → **Anthropic**.
4. Paste your API key.
5. Select a Claude model and click **Verify and Enable**.

## Troubleshooting

- **Unauthorized / 401**: your API key is invalid, revoked, or has a typo.
- **Model not available**: check your Anthropic account access and selected model.