> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/online-payments/api-integration-methods-auth-and-endpoints/api-authentication/authentication-methods-basic-and-bearer/basicauth.md).

# BasicAuth

## Encoding API Key <a href="#encoding-api-key" id="encoding-api-key"></a>

To encode API keys, follow the authentication method below.

1. Indicate Authorization: Basic "user-uid:api key" in the header.
2. Replace the "user-uid" and "api key" values with the necessary ones.
3. Encode the whole string in [base64](https://en.wikipedia.org/wiki/Base64).

**For example**:

The following **user-uid:api key** string `777c31b3-a85f-4823-93a5-9055d1b:cGEFFLjYuUCtmerXlhTfAdaPpYVnXDJZmg`\
results in a\
**base64** `Nzc3YzMxYjMtYTg1Zi00ODIzLTkzYTUtOTA1NWQxYjpjR0VGRkxqWXVVQ3RtZXJYbGhUZkFkYVBwWVZuWERKWm1n`\
Thus, the header should look like this:\
**Authorization: Basic**\
`Nzc3YzMxYjMtYTg1Zi00ODIzLTkzYTUtOTA1NWQxYjpjR0VGRkxqWXVVQ3RtZXJYbGhUZkFkYVBwWVZuWERKWm1n`

## Setting up Basic Auth in Postman <a href="#setting-up-basic-auth-in-postman" id="setting-up-basic-auth-in-postman"></a>

To set up Basic Auth in Postman, follow the steps below. Additionally, you can create a new collection by downloading our OpenAPI specification file available [here](broken://spaces/r0Pu7uTgoiNOnK8BvNFW/pages/9ea2bc013bb62eb731b5272a1363939bc18a6de6).

1. Navigate to the GET Health check menu item on the Collections page.
2. Click the Authorization menu item below the request URL field.
3. Choose the Basic Auth option from the Type dropdown list.
4. To send the request, paste your "user-uid" into the username field and "api key" into the password. See the screenshot below.

<figure><img src="/files/viJNJCQgOXO6FyVrQKGO" alt=""><figcaption></figcaption></figure>


---

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