> For the complete documentation index, see [llms.txt](https://studio.docs.ai.vonage.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://studio.docs.ai.vonage.com/api-integration/authentication.md).
# Authentication
Each Studio account can generate a single API Key in the following way:
1. [Create an account](https://identity.nexmo.com/login) in the Studio application.
2. Generate an API Key in the Studio application as seen below.
3. Save the API Key in a secured place, don't lose it!
4. Every HTTP request goes through our API Gateway, which validates the API Key attached as a header named `X-Vgai-Key.`
{% hint style="danger" %}
*An API Key is similar to a password that allows access to some of your account resources. Please keep it secured and private!*
*The API Key is unique and impossible to recover in the case of a loss. Only a new API Key can be generated if lost.*
{% endhint %}
---
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