# Getting started

Gigastore provides an API for integrating eSIM into websites and mobile apps.

The API is available in REST JSON format and comes with a Postman collection and Open API specification. Stay informed of our documentation to keep our API and services up-to-date.

You can check the collections and specs here:

[postman-collection](https://docs.giga.store/api/postman-collection "mention")

[open-api-specification](https://docs.giga.store/api/open-api-specification "mention")

To start with an API integration, check the method to authorize your requests:

[api-authentification](https://docs.giga.store/api/api-authentification "mention")

Here, you will find the core elements of our APIs. 

[offering-packages](https://docs.giga.store/api/offering-packages "mention")

[countries-api](https://docs.giga.store/api/countries-api "mention")

[customers](https://docs.giga.store/api/customers "mention")

[first-package](https://docs.giga.store/api/first-package "mention")

[esim-profiles](https://docs.giga.store/api/esim-profiles "mention")

[top-up](https://docs.giga.store/api/top-up "mention")