> For the complete documentation index, see [llms.txt](https://docs.signius.eu/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.signius.eu/api/seal-api/sealing-server-api-documentation.md). # SEALING Server API Documentation ## Introduction This documentation presents the different methods in SIGNIUS SEALING Server API, how to use them, their parameters and other significant information about them. Most methods require a JSON compatible input. Except timestamp and hash signing processes. Each call to the REST method requires that the API key. API key must be added to the HTTP header > API-KEY: \ To obtain your individual API key please contact us at All methods except timestamp and hash signing are asynchronous ## Swagger We have included all the necessary information you'll need to be successful in swagger. Check this URL for further details: ## Postman collection If you would like to receive a pre-build postman collection, please give us a quick mail: .