# Use Application After you've published your application, you probably want to test your endpoint :-) ## Calculate Hash 1. Navigate to **Calculate Hash** in the main navigation. 2. Select your endpoint and the environment. 3. In case your endpoint has "include-in-hash" parameters, you will be prompted to enter values for those parameters. See: [Authentication](https://onestopconcept.gitbook.io/open-endpoints/usage/authentication). 4. Press button **Calculate Hash** and copy the calculated hash value. ## Build the Link 1. Navigate to **Home** in the main navigation. 2. Copy **Live URL** or **Preview URL** - depending on what environment you would like to use. The URL should look like this: `https://endpoints.openendpoints.com/foo/{endpoint}?{parameter}` 3. Replace `{endpoint}` with the name of your endpoint 4. Replace `{parameter}` with: `hash=[the-calculated-hash]` 5. If your endpoint has "include-in-hash" parameters, those parameters (and the values as used for calculating the hash) shall be added as additional GET parameters. ## Test the Link 1. Copy the link into your browser. 2. Navigate to **Request-Log** in the main navigation. You will find your request, including additional information in case an error has occurred. --- # 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://onestopconcept.gitbook.io/open-endpoints/installation/first-steps-after-installation/use-application.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.