---
title: Testing APIs
description: Testing APIs. On the API page, open an endpoint and press Test Endpoint. The page shows Free test requests remaining, out of 3 for the session.When none...
---

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1. [Help Center](https://helpcenter.zylalabs.com/?hsLang=en)
2. [Overview](https://helpcenter.zylalabs.com/overview?hsLang=en)

# Testing APIs

On the API page, open an endpoint and press Test Endpoint. The page shows Free test requests remaining, out of 3 for the session.

When none remain, it says Free test limit reached for this session. A guest then sees Create free account.

A logged-in user can press Test Endpoint while free tests remain, even without a subscription to that API.

To call the API from your own code, subscribe and send the Authorization header as Bearer followed by your API access key. After you subscribe, the key is shown as Your API Access Key.

Logged-in users can press Run in Postman on the API page to download the collection. A guest who requests that collection is told they need to be subscribed to this API to get access to the Postman Collection.

- [Subscribe to an API](https://helpcenter.zylalabs.com/subscribe-to-an-api?hsLang=en#main-content)

    - [About Free Trial](https://helpcenter.zylalabs.com/subscribe-to-an-api?hsLang=en#about-free-trial)
    - [Unsubscribe from an API](https://helpcenter.zylalabs.com/subscribe-to-an-api?hsLang=en#unsubscribe-from-an-api)
    - [Soft Limit Feature](https://helpcenter.zylalabs.com/subscribe-to-an-api?hsLang=en#soft-limit-feature)
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- [Overview](https://helpcenter.zylalabs.com/overview?hsLang=en)
- [Adding your API as Provider](https://helpcenter.zylalabs.com/adding-your-api-as-provider?hsLang=en)
- [APIs Reference](https://helpcenter.zylalabs.com/apis-reference?hsLang=en#main-content)

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