Postman turned curl one-liners into shareable collections, environments, and mock servers — the default toolbox for backend and frontend devs testing RESTRepresentational State Transfer — a style for web APIs using HTTP methods and resource URLs. and GraphQL APIs. TeamsMicrosoft Teams — chat, video calls, and Office integration for workplace collaboration. synced request folders in version control; Newman ran collections in CI. It became essential infrastructure alongside Swagger/OpenAPI specs.

Postman became the standard GUIGraphical user interface — windows, icons, and pointers instead of typed commands. for exploring and sharing HTTPHyperText Transfer Protocol — the protocol browsers use to request and receive web pages. APIs.

Collections and environments made APIApplication programming interface — a defined way for programs to talk to each other or to a service. testing repeatable across teams.