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How to Securely Hide Your API Key for Email Verification | Clay

How to Securely Hide Your API Key for Email Verification

·Nov 21, 2025 08:55 AM·

Can you help me finding a solution to hide my api key So i have connected email verifier and in the endpoint there is a link and key So i want to hide it and its an enterprise account so i dont want them to see Basically want to reduce the risk

7 comments

· Sorted by Oldest

Clay Support
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Use HTTP headers to securely pass your API key instead of exposing it in the URL. Set it as a header like X-API-Key: YOUR_KEY or Authorization: Bearer YOUR_TOKEN—headers aren't visible in the endpoint. [1]
Never share or expose your API key publicly.
If compromised, regenerate it instantly in Settings > Your profile > API key. [3]
Clay Support
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Is that what you were looking for?
Clay Support
APP
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If you need any more help with securing your API key or have other questions, I’m here to assist. Would you like to provide more details about what you’re trying to achieve or any other concerns you have?
Muhammad S.
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I have set Get method And in the endpoint there is the verifier link and api key So i dont want the key to be there So not everyone can I want the other to see as **
Clay Support
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You can't mask API keys in the endpoint URL itself, but you can move your API key from the URL to headers where it won't be visible to others. [1]
Instead of putting your key in the endpoint URL, add it as a header:
Key: X-API-Key
Value: YOUR_API_KEY_HERE
Or use Authorization header:
Key: Authorization
Value: Bearer YOUR_API_KEY_HERE [2]
Headers aren't visible in the endpoint and provide secure authentication without exposing your key. [3] This keeps your API key hidden from other users who can see the endpoint configuration.
Clay Support
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Did that answer your question?
Clay Support
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If you still need help with hiding your API key or have any other questions, I’m here to assist. Would you like to share more about what you’re trying to resolve or understand?