# Guides

- [Postman](/guides/postman.md): You can use the Underdog API Postman to test your Devnet and Mainnet implementations
- [Endpoints](/guides/endpoints.md): The Underdog API supports both Solana Mainnet-Beta and Solana Devnet through its two API endpoints
- [Authentication](/guides/authentication.md): You'll need to authenticate your requests to access any of the endpoints in the Underdog API. In this guide, we'll look at how authentication works.
- [Pagination](/guides/pagination.md): In this guide, we will look at how to work with paginated responses when querying the Underdog API.
- [Errors](/guides/errors.md): In this guide, we will talk about what happens when something goes wrong while you work with the API.
- [Webhooks](/guides/webhooks.md): In this guide, we will look at how to register and consume webhooks to integrate your app with Underdog.
- [Architecture](/guides/architecture.md)