Every developer knows the pain. You have a working request against your local server, and then you need to test the same thing against staging — so you manually swap the base URL. Then prod. Then you realize you forgot to update the auth token. Then a teammate grabs your collection and nothing works because all the values are hard-coded to your machine. There is a better way. Environments and {{variables}} in APIKumo APIKumo has a first-class environment system. Instead of hard-coding values into your requests, you wrap them in double curly braces: {{baseUrl}}/users/{{userId}} Authorization: Bearer {{accessToken}} Enter fullscreen mode Exit fullscreen mode At send-time, APIKumo resolves every {{variable}} from whichever environment is currently active. Switching from dev to staging to prod is a single dropdown click — your requests don't change at all. Setting up your first environment Inside any collection, open Environments and create one per context: local , staging , production .…