How do I add quotas to my AI app?

Three steps

(1) Create a limit group: unit (count / tokens / seconds / cents), quota (number), period (daily / weekly / monthly / lifetime), match rule (event_type and optional metadata). (2) Attach it to one or more plans. (3) Assign the plan to each user via vevee.upsertSubscription.

Gate AI calls

For hard quotas, wrap AI calls in reserve / commit / release. For soft quotas (count for invoicing only), just track().

const r = await vevee.reserve(userId, "image.render", 1);
if (!r.allowed) throw new LimitError(r.reasons);
try {
  const result = await callAi();
  await vevee.commit(r.reservationId!);
  return result;
} catch (e) {
  await vevee.release(r.reservationId!);
  throw e;
}

Reset frequency

Pick the period that matches your business: daily for anti-abuse, weekly for soft pacing, monthly for plan quotas, lifetime for one-time credit packs.