# Welcome

The CinCin API offers a comprehensive set of endpoints for managing card operations, including card issuance, top-ups, withdrawals, blocking, freezing, PIN management, and transaction history retrieval. All endpoints are available under the following base URL.

#### Base URL

```
https://api.cardinfo.app/cards/v1
```

{% hint style="info" %}
Authentication: All endpoints require user authentication via HTTP request headers.
{% endhint %}

<table data-view="cards"><thead><tr><th></th><th data-type="content-ref"></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td>CinCin API introduction</td><td><a href="introduction">introduction</a></td><td><a href="https://3208448264-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKBFPQhXJLWR9J7AXhTSU%2Fuploads%2FnXCEz2AbscKvwtFC8VKq%2Fintroduction.png?alt=media&#x26;token=2af2ef57-7591-4128-96c3-b99950eb8194">introduction.png</a></td></tr><tr><td>API references</td><td><a href="api">api</a></td><td><a href="https://3208448264-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKBFPQhXJLWR9J7AXhTSU%2Fuploads%2FDjwz14wMRu3gQyLz9P9z%2Freferences.png?alt=media&#x26;token=4de9b127-a128-4364-b807-4fefa36d209a">references.png</a></td></tr><tr><td>Webhooks</td><td><a href="webhooks">webhooks</a></td><td><a href="https://3208448264-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKBFPQhXJLWR9J7AXhTSU%2Fuploads%2FzoRi8jBLDE1qMubTNGNu%2Fwebhooks.png?alt=media&#x26;token=9a50d0b8-c803-447d-81b5-a15f1246b06c">webhooks.png</a></td></tr></tbody></table>