> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vampauth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# License Management

> Key lifecycle, HWID binding, FFA, and usage stats.

export const CopyPrompt = () => {
  const [copied, setCopied] = useState(false);
  const prompt = "Summarize the Vampauth license model in 10 lines: key lifecycle (create, revoke, expire, reset), HWID binding with max_hwid_per_key (1-10), FFA keys skip binding, passthrough HWID, and stats persisted on every successful key/check (executions, last_used, first_used). No code.";
  const copy = async () => {
    try {
      await navigator.clipboard.writeText(prompt);
    } catch {
      const t = document.createElement("textarea");
      t.value = prompt;
      document.body.appendChild(t);
      t.select();
      document.execCommand("copy");
      document.body.removeChild(t);
    }
    setCopied(true);
    setTimeout(() => setCopied(false), 1500);
  };
  return <div className="not-prose my-4 flex items-center justify-between gap-3 rounded-lg border border-zinc-200 px-4 py-2.5 dark:border-zinc-800">
      <span className="text-xs font-semibold uppercase tracking-wider text-zinc-500 dark:text-zinc-400">AI prompt</span>
      <button onClick={copy} className="cursor-pointer rounded border border-zinc-300 px-2.5 py-1 text-xs font-semibold text-zinc-700 hover:bg-zinc-100 dark:border-zinc-700 dark:text-zinc-300 dark:hover:bg-zinc-800">{copied ? "Copied" : "Copy"}</button>
    </div>;
};

# License Management

## Lifecycle

| Action     | Effect                                                                   |
| ---------- | ------------------------------------------------------------------------ |
| Create     | Issue a new key with an optional expiry and alias.                       |
| Revoke     | Ban the key. `key/check` returns `KEY_BANNED`.                           |
| Expire     | Key passes its `expires_at`; `key/check` returns `KEY_EXPIRED`.          |
| Reset HWID | Release the hardware binding(s) so the key can activate on new hardware. |
| Delete     | Remove the key from the project.                                         |

## HWID binding

Keys lock to the hardware that first activates them. `key/check` compares the client-sent `hwid` against the key's bound hardware IDs and returns `FINGERPRINT_MISMATCH` when they differ.

* **`hwid_binding`** (project setting) — master switch.
* **`max_hwid_per_key`** — how many hardware IDs one key may bind (1–10). Forced to 1 when binding is off.
* **FFA** — free-for-all keys skip binding entirely. Forced on when project binding is disabled.
* HWID is **passthrough**: the client computes its own `hwid` string; Vampauth only compares what it receives.

## Usage stats

Every successful `key/check` increments `executions`, refreshes `last_used`, and seeds `first_used`. These persist on the license in real time.

<CopyPrompt id="license-management" />