HOW TO USE

Step 1: Paste Your API Keys

Enter Your Keys

In the text area labeled "LLM API keys — one per line", paste your API keys. You can check multiple keys at once by entering each on a new line.

Step 2: Click "CHECK KEYS"

Instant Validation

Click the glowing "CHECK KEYS" button. CheckAPIs will automatically:

• Detect the provider for each key
• Make direct API calls from your browser
• Validate each key in parallel
• Retrieve available models and rate limits

Step 3: View Results

Detailed Information

Results appear in a table showing:

• Key: First 8 characters (truncated for security)
• Provider: Detected API provider (OpenAI, Anthropic, etc.)
• Status: ✓ Valid or ✗ Invalid
• Models: List of available models
• Latency: Response time in milliseconds
• Rate Limits: Usage limits (if provided by API)
• Error: Detailed error message for invalid keys

Privacy & Security

Zero-Trust Architecture

CheckAPIs is designed with privacy as the top priority:

• Client-Side Only: All validation runs in your browser
• Direct API Calls: Keys sent directly to providers, never to our servers
• No Logging: Keys never logged, stored, or transmitted to third parties
• No Analytics: We don't track what keys you check
• Open Source: Code is public for security audits
• Memory Only: Keys cleared from memory after validation

Understanding Results

Status Indicators