# Authentication Trio uses [basic authentication](https://en.wikipedia.org/wiki/Basic_access_authentication) to authenticate the API. You can create `sandbox` and `production` client secret keys in the developer console. We're also offering a company unique identifier to be used as username in the authentication process. Use your company unique identifier (client\_id) as username and generated secret key (client\_secret) as password to authenticate: ```sh curl https://api.sandbox.trio.com.br/banking/entities \ -H "Content-Type: application/json" \ -u {client_id}:{client_secret} ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.trio.com.br/developers/authentication.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.