This paper addresses key aspects of securitySecurity in web environments, with a particular focus on API endpoints. The exchange of vast amounts of information within integrated systems requires consistent application of securitySecurity principles throughout all stages—planning, development, testing, and implementation. The paper provides insights into API endpoints, types of APIs, potential techniques for securing API endpoints, and recommendations for the phases that should be carried out during the development of API endpoints to ensure their securitySecurity. Special emphasis is placed on raising awareness of securitySecurity threats among those who develop and use such systems, as well as on the importance of employing appropriate tools for testing API endpoints and other system components. Additionally, the paper explores the challenges of retrieving data from websites without APIs and creating new APIs for exchanging such information, identifying specific securitySecurity risks and offering recommendations for addressing them. The paper also highlights the importance of introducing new methods into the education of software engineers in the field of information securitySecurity.