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Checkpoint Flow

The checkpoint flow is how end users claim a free key. The developer defines one or more checkpoints; each is a third-party ad/offer link (Linkvertise, Lootlabs, and more).

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How it works

1. A user opens the project’s flow page (/flow).
2. They complete each checkpoint in order.
3. When all checkpoints pass, the backend issues a key for the configured duration.
4. The key is shown to the user and bound to the hardware that first activates it (unless FFA).

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Checkpoint types

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Variants

Projects can define variants, each with its own checkpoint set and license settings. A variant is selected by a variant_id passed when the flow session starts.

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Key renewal

When a key expires, the user can run the flow again. If the same key still exists, the backend renews it instead of issuing a duplicate.