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API Key Validator Online
Test and validate API keys for OpenAI, Anthropic, Google AI, and other services. Secure validation without storing keys on our servers.
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anthropic
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API Key Validator
Test 17+ services instantly
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Select a Service
Choose from 17+ supported API services to get started
About API Key Validator
Free API key validator that instantly tests 17+ services including OpenAI, Anthropic, Google AI, and more. No sign-up required, no data stored - validate your API keys securely in your browser.
Key Features
- Support for 17+ popular APIs including OpenAI, Claude, Gemini, and Azure
- Real-time validation with instant feedback and detailed error messages
- Secure browser-based validation - keys never stored or logged
- Comprehensive insights including usage, permissions, and rate limits
- Always free with no account registration required
- HTTPS encryption for secure key transmission
- Detailed diagnostic information for troubleshooting
Use Cases
- Test API keys before implementing in production code
- Debug authentication issues and permission problems
- Audit existing keys and verify their current status
- Rotate and validate new API keys during security updates
- Verify key permissions and usage limits
- Troubleshoot integration issues with third-party services
Supported Formats
OpenAI API Keys
Anthropic Claude Keys
Google AI/Gemini Keys
Azure OpenAI Keys
GitHub API Tokens
Hugging Face Tokens
Various OAuth Tokens
Related Keywords
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🔐 Your Keys Stay Safe
All keys are validated securely in your browser using HTTPS. Nothing is stored, logged, or sent to our servers. Your API keys remain completely private and secure.
Privacy & Security
All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.
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