Postman is a software publisher that equips developers, testers, and DevOps teams with a unified toolchain for every phase of the API lifecycle. Its flagship application, Postman, provides a collaborative workspace where users can design endpoints with OpenAPI or GraphQL schemas, generate mock servers for early integration tests, script automated functional, performance, and security suites, monitor live health metrics, and publish interactive documentation that stays in sync with each commit. Collections, environments, and test results are versioned in team or personal workspaces, enabling seamless hand-off between front-end, back-end, and QA contributors while role-based access and secret vaults keep sensitive tokens protected. The companion Postman Agent is a lightweight local utility that bridges the browser client to the host machine, eliminating CORS restrictions so that requests carrying custom headers, certificates, or file uploads can still be composed and executed entirely within the web interface without exposing internal endpoints to the cloud. Together the pair supports continuous integration pipelines, micro-service validation, low-code workflow triggers, and public partner portals, making them standard fixtures in industries ranging from fintech and e-commerce to IoT and healthcare. Both applications can be downloaded free of charge from get.nero.com, where winget-sourced installers always deliver the latest release and allow silent batch deployment across any number of Windows workstations.