https://www.openapis.org/ The OpenAPI Specification is a specification language for HTTP APIs that provides a standardized means to define your API to others.
https://hackmd.io/Y9WDJt9KRYaPPNBgZpajsQ#Test-Cases OpenAPI TestCases
https://github.com/OAI/OpenAPI-Specification/tree/main/schemas/v3.1 OpenAPI 3.1.X JSON Schema
https://swagger.io/tools/swagger-ui/Swagger UI
https://petstore.swagger.io/ This is a sample server Petstore server.
https://habr.com/ru/companies/ddosguard/articles/499756/
За сколько секунд должен загружаться веб-сайт в 2020, что такое «быстро», и причем тут зеркала в лифтах?
https://github.com/mcollina/autocannon An HTTP/1.1 benchmarking tool written in node, greatly inspired by wrk and wrk2, with support for HTTP pipelining and HTTPS.
https://yandextank.readthedocs.io/en/latest/install.html Yandex tank Installation
https://overload.yandex.net/ Performance analytics service