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Exposing a Port

Create a public HTTPS URL that proxies traffic to a port inside your sandbox:

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Sharing a Dev Server

Start a server inside the sandbox, expose it, and share the URL:

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Multiple Ports

Expose multiple services from the same sandbox:

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Custom Domains

Pass --domain to use your own domain. DNS must point to OpenComputer’s ingress, and the domain must be verified in the dashboard. SSL is provisioned automatically.

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Cleanup

Preview URLs persist across hibernation/wake cycles — no need to re-create them.

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Bearer-Token Authentication

By default, anyone who knows the preview hostname can hit your sandbox’s port. To require an Authorization: Bearer <token> header on every request, opt in at create time:
Then call your preview URL with the token:
Bring your own token if your gateway already has a shared secret:
Rotate the token (old one stops working immediately):
Token is shown exactly once and only its SHA-256 hash is stored. See Authentication for the SDK equivalents.
SDK usage: Preview URLs. Full flags: CLI Reference.