Each instance is isolated, stateful, and addressable at its own host. The server generates an unguessable name; an optional {"instance":"<prefix>"} body adds a readable prefix.

curl -s -X POST https://mongoatlas.emulators.dev/_emulate/instances

Hosted deployments create instances lazily when the returned URL is first used. The instance URL is a capability: anyone who has it can read and modify the instance, so save the returned URLs. Never store real secrets in an emulator.

Sample instance host: https://mongoatlas.your-instance.emulators.dev

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