Is it safe to paste my API key?

Yes. The tool runs entirely in your browser and does not store or log API keys.

Why do I get network errors?

Some providers block browser-based requests due to CORS policies. Running locally may resolve this.

Yes, the validator is free. Providers may charge minimal API usage depending on their pricing.

AI API Key Validator – Test OpenAI, Gemini, Claude Keys Securely

Configuration

Select Provider

API Key

Your key is used locally. It is never saved.

Response Console

# System ready.

# Select a provider and enter a key to test connectivity.

Built with JS (AJAX) & Tailwind

Privacy & Anonymity

Zero Data Storage: We do not store, log, or save your API keys. This tool is a client-side utility, meaning the code runs entirely within your web browser.

Direct Connection: When you click "Validate", your browser makes a direct request to the AI provider (e.g., OpenAI, Google). No intermediate server intercepts your data.

Anonymous Usage: No user accounts, cookies, or tracking pixels are used on this tool. Once you refresh the page, all input data is wiped from your browser's memory.

Frequently Asked Questions

Is it safe to paste my Production Key?

Yes, but best practice is to create a temporary key, test it here, and then delete it if you are unsure. Since the code runs locally, your key is as safe as your browser.

Why do I get a "Network Error"?

Some providers (like OpenAI) have strict CORS policies that block browser-based requests to prevent key leakage. If this happens, try using a browser extension to disable CORS temporarily for testing, or run this tool on localhost.

Does this tool cost money?

The tool itself is free. However, validating a key makes a tiny request to the API provider. If the provider charges for "list models" requests (most do not), it might use a negligible amount of your quota.