# Getting started

To build protocol compliant application, it is important to understand the core architecture and specifications of the Beckn Protocol.

1. Read more on Beckn Core Specifications here: <https://developers.becknprotocol.io/docs/core-specification/>
2. For the complete sandbox with postman collection, click here: <https://github.com/beckn/beckn-sandbox/blob/main/artefacts/Retail/retail-sanbox.postman_collection.json>&#x20;
3. Before getting started, read the Sandbox User Guide here: <https://github.com/beckn/beckn-sandbox/blob/main/USER_GUIDE.md>&#x20;
4. All the retail specific JSON files for Open APIs can be found here: <https://github.com/rajaneeshk90/local-retail-rk/tree/0.9.3/examples>

Open Gambia Network, is currently in beta phase, and its an opportunity for experts, developers, startups, and other market players to embrace the potential of OGa and join the network today!

If you have queries, we are happy to help you, please feel free to drop an email here: <mark style="color:green;"><support@oga.gm></mark>&#x20;