/v2/billing/usageCurrent usage counts against plan limits, plus both credit balances. A plain read with no side effects — unlike Get subscription, this never starts a trial or syncs plan limits.
| Authorization | Bearer YOUR_API_KEY |
curl "https://api.stynar.com/v2/billing/usage" \
-H "Authorization: Bearer esk_your_key_here"{
"usage": {
"campaignsCount": 6,
"domainsCount": 2,
"mailboxesCount": 4,
"leadsCount": 12480,
"templatesCount": 9,
"dailySentCount": 210,
"dailySentDate": "2026-08-16",
"creditsBalance": 1840,
"topupCreditsBalance": 500
}
}| Status | Code | Meaning |
|---|---|---|
| ✕ 401 Unauthorized | UNAUTHORIZED | Missing, malformed, unknown, revoked, or expired key. |
| ✕ 403 Forbidden | API_ACCESS_DISABLED | API access is turned off for your account. |
| ✕ 403 Forbidden | INSUFFICIENT_SCOPE | The key doesn't have the scope this endpoint requires. |
| ✕ 404 Not Found | NOT_FOUND | Unknown route, or a resource that doesn't exist / isn't yours. |
| ✕ 409 Conflict | CONFLICT | The action can't be applied to the resource's current state. |
| ✕ 429 Too Many Requests | RATE_LIMIT_EXCEEDED | Per-minute or per-second limit hit. |
| ✕ 429 Too Many Requests | QUOTA_EXCEEDED | Monthly quota exhausted. |
| ✕ 500 Internal Server Error | INTERNAL_ERROR | Something broke on Stynar's end. |