Slingshot is a web-based HTTP request client that is highly performant, low on resources, privacy respecting, local-first, free and open-source. It stores all your data locally in your browser. It allows you to import and export OpenAPI specs and Postman collections. Has built-in support for multiple authentication mechanisms including OIDC and OAuth 2.0. Supports streaming of SSE and uses a performant proxy to make API calls (that you can run yourself if you don't want any data to pass through RequestBite servers).