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Cua Fleets Adds Expiring Signed Links for Sandbox Services

Source
Cua
Date
Cua@trycua
Thread · 5 parts

1/ Cua Cloud Fleets now supports temporary, revocable links to individual sandbox services. Share a service. Set an expiry. Revoke access. Explore Fleets: https://t.co/q4Cc9z9GOp Here's how it works.

2/ Need someone or another system to reach a service in your sandbox? Create a signed URL for a service declared on your pool template. Requests route to that named service on the bound sandbox.

3/ Choose an expiry from 1 minute to 24 hours. Sharing a demo for an hour? Set expiresInSeconds: 3600. Keep the sandbox claim bound while sharing. The link doesn't keep it alive.

4/ Done sharing? Revoke the link. Anyone with the URL can access the service until it expires or is revoked. Treat the link like a credential and share it only with the intended recipients.

Read the full thread on X
Key takeaways · AI-distilled
  • A signed URL targets a service declared on the pool template, and requests route to that named service on the bound .
  • The link does not keep the sandbox alive: the sandbox claim must stay bound for the whole sharing window, for example expiresInSeconds: 3600 for a one-hour demo.
  • Anyone holding the URL can reach the service until it expires or is revoked, so Cua says to treat it like a credential. Signed URLs must be enabled in the Fleet environment.
Terms in this piece · Glossary
  • sandboxAn isolated environment where AI-generated code or agent actions run without being able to touch anything real.
  • AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
Why it matters

Cua Fleets now lets you generate an expiring, revocable link to a single service inside an sandbox, useful for sharing a live demo or giving temporary external access without keeping credentials open.

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