> For the complete documentation index, see [llms.txt](https://docs.autentique.com.br/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.autentique.com.br/api/integration-basics.md).

# Integration basics

- [Using Altair](https://docs.autentique.com.br/api/integration-basics/altair.md): Altair is an application for running GraphQL queries/mutations. With it, you can build and check the results of requests on the web before integrating them into your code.
- [Sandbox/tests](https://docs.autentique.com.br/api/integration-basics/sandbox-testes.md): A great way to run tests on the platform without extra costs or using up your free documents.
- [Webhooks](https://docs.autentique.com.br/api/integration-basics/webhooks.md): Receive events from your organization on Autentique through your webhook endpoints.
- [Webhooks (deprecated)](https://docs.autentique.com.br/api/integration-basics/webhooks-1.md): How to set up Webhooks and receive document status notifications
- [Error messages](https://docs.autentique.com.br/api/integration-basics/mensagens-de-erro.md): Examples of error messages or validations returned by the API and what they are