RequestSpark - Technical Summary RequestSpark is a comprehensive .NET 10 (LTS) web application and console tool designed for executing REST API tests, performance benchmarking, and regression testing against Postman collections. The solution provides a browser-based dashboard built with Razor Pages that enables users to manage API configurations, execute test runs, and analyze detailed performance metrics including response time percentiles, success rates, and load testing capabilities. The architecture leverages a modular project structure with separate Domain, PostmanImport, and Web layers (RequestSpark.Domain, RequestSpark.PostmanImport, RequestSpark.Web), supported by comprehensive test coverage (21 tests, 100% pass rate) using MSTest v4 with integrated code quality analyzers. Key technical differentiators include native Postman collection integration for seamless test migration, built-in CSV export functionality for results analysis, a sample CRUD API for demonstration purposes, and significant performance optimizations—19% faster builds (5.1s → 4.1s) and 25% faster test execution (0.8s → 0.6s) following the recent .NET 10 upgrade. The project maintains high code quality standards with 93% of NuGet packages at latest versions, zero security vulnerabilities, and elimination of deprecated framework-included packages, making it suitable for enterprises and development teams needing automated API testing, performance regression detection, and load testing capabilities without external dependencies. The solution is actively maintained by Mark Hazleton with a live demonstration instance at request.makeboldspark.com, though current activity is stale (90+ days without commits).