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Every signed-in account has a personal referral link under Account → Referrals. A new account can claim one referral during its first seven days.

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Rewards

When the referred account adds at least 10ofcloudcredit,sndboxadds10 of cloud credit, sndbox adds 5 of cloud credit to both the referred account and the referrer. Referral credit pays for hosted runners, managed browsers, network egress, and artifact storage. Local and self-hosted execution remains unmetered. The referral page shows authoritative invited, pending, rewarded, and earned totals. It deliberately does not reveal the referred account’s email or profile details.

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Qualification and refunds

A claim remains pending until a qualifying cloud-credit payment succeeds. Reward entries and the payment settlement are committed in one database transaction, so a partially applied reward cannot become visible. If a refund reduces the qualifying purchase below 10,both10, both 5 rewards are reversed. The reversal stays visible in cloud-credit history and referral history.

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Fair use

  • An account cannot refer itself.
  • Each new account can claim only one referral.
  • Referral chains cannot contain cycles.
  • Claims close seven days after account creation.
  • A referrer can receive at most 50 successful rewards in a rolling year.
  • Referral codes do not expose an account ID or email address.
Referral attribution is carried through sign-in in an HTTP-only, same-site cookie and is removed after the claim attempt. Claims and payment events are idempotent.