How to Get an Anthropic Claude AI API Key: Complete Guide

Getting started with Claude AI in AIWU plugin is simple. Follow this step-by-step guide to create your account and connect Claude to your WordPress site.

Step 1: Create an Anthropic Account

1. Go to console.anthropic.com
2. Click “Sign Up” or “Get Started”
3. Enter your email address and create a password
4. Verify your email by clicking the link sent to your inbox
5. Log in to your account

Step 2: Add Payment Method

Before you can use the API, you need to add a payment method:

1. Go to Settings → Billing
2. Click “Add Payment Method”
3. Enter your credit card details
4. Add initial credits (minimum $5 recommended)

Important: Claude API is pay-as-you-go. You only pay for what you use.

Step 3: Generate Your API Key

1. Go to Settings → API Keys
2. Click “Create Key”
3. Give your key a name (e.g., “AIWU Plugin”)
4. Click “Create”
5. Copy your API key immediately – you won’t be able to see it again!

Your API key looks like this:

sk-ant-api03-xxxxxxxxxxxxxxxxxxxxx

Step 4: Connect Claude to AIWU Plugin

1. In your WordPress admin, go to AIWU → Settings → API
2. Find the Claude field
3. Paste your API key
4. Click “Save Changes”

Step 5: Test Your Connection

1. Go to any AIWU scenario (Content Generator, Blog Post Writer, etc.)
2. Select Claude as your AI provider
3. Generate some test content
4. If it works – congratulations! You’re all set! 🎉

Important Security Tips

⚠️ Never share your API key publicly

• Don’t post it on GitHub, forums, or social media
• If exposed, delete it immediately and create a new one in Anthropic Console

Pricing

Claude API pricing:

• Claude Sonnet 4.5: $3 per million input tokens, $15 per million output tokens
• Claude Haiku 4: $0.80 per million input tokens, $4 per million output tokens

Typically, one blog post costs $0.01 – $0.05 depending on length.

Regional Restrictions

⚠️ Claude API may not be available in some countries:

• Russia (.ru domains)
• Belarus (.by domains)
• China (.cn domains)
• Iran (.ir domains)
• North Korea (.kp domains)

If you’re located in one of these regions or using hosting/server in these countries, Claude API may not work. You’ll need to:

• Use a VPN or proxy server
• Use hosting outside restricted regions
• Try alternative AI providers available in AIWU (like Perplexity, Groq, etc.)

Troubleshooting

“Request not allowed” error:

• Check if your payment method is valid and you have sufficient credits
• Verify your server/hosting is not in a restricted region
• Try using a VPN or proxy

“Invalid API key” error:

• Make sure you copied the entire key without extra spaces
• Verify the key wasn’t deleted in Anthropic Console

Next Steps

Once connected, you can:

• Generate blog posts, product descriptions, and more
• Choose Claude for high-quality content generation
• Combine it with other AI providers in AIWU

That’s it! You’re ready to use Claude AI with AIWU plugin. 🚀