Documentation · For providers

Limits and “Unlimited”

How many domains, links, devices and messages the free cabinet allows, what “Unlimited” lifts for 1000 ₽ a month, and how to pay and renew.

The provider cabinet is free, with limits. “Unlimited” lifts them: 1000 ₽ for 30 days.

Limits

What	Free	With “Unlimited”
domains	50	1000
limited links	5000	100,000
limit of one link	1000 devices	100,000 devices
devices in statistics	500,000	5,000,000
messages to everyone / by system	2 a day, at most once in 5 minutes	4 a day, at most once a minute
messages to selected devices	200 an hour, up to 20 devices each	2000 an hour, up to 1000 devices each
messages waiting for delivery	500	5000
API requests	120 a minute	600 a minute
API keys	10	10
manual domain checks	20 an hour	20 an hour

“Unlimited” has ceilings too: they protect against abuse and are an order of magnitude above the free ones. The cabinet shows the limits in force on its “Unlimited” page.

How to pay

Cabinet → “Unlimited” → “Buy for 1000 ₽ a month”.
The anore payment page opens: SBP, a card, YooMoney or crypto. The invoice is valid for 4 hours.
After paying you come back to the cabinet and see “Unlimited until …”. The payment usually arrives within seconds. If the cabinet still says it is waiting for the payment, come back later: it will not get lost.

You can pay only in the cabinet on the website, signed in to your account. An API key can read the term and the payment history, but cannot pay.

Renewing

It is not a subscription: nothing is charged by itself.
Renew any time with the same payment: 30 days are added to the current term. For example, paying 5 days before the end gives you 35 days from today.
You can pay at most 12 months ahead.
3 days before the end an email goes to the account's address, and the cabinet shows a “renew” banner.

Nothing is deleted or switched off: domains, links (with their device limits) and messages keep working. But nothing new above the free limits can be created. The API then answers with limit or rate_limited and "upgrade": true, and the cabinet offers to renew.

Also

The term belongs to the account, not to the cabinet: delete the cabinet and turn it on again, and the paid days stay. Deleting the account removes them.
Refunds go through FlowLock support, by hand.
The payment history is in the cabinet, on the “Unlimited” page.

In the API

# term, price, limits and an invoice still waiting for payment
curl -s https://api.flowlock.cc/v1/provider/billing -H "Authorization: Bearer $FLOWLOCK_KEY"
# payment history (newest first, 50 at a time)
curl -s https://api.flowlock.cc/v1/provider/billing/payments -H "Authorization: Bearer $FLOWLOCK_KEY"

{
	"available": true,
	"price_rub": 1000,
	"days": 30,
	"plan": {
		"name": "unlimited",
		"active": true,
		"paid_until": "2026-12-01T10:00:00Z",
		"days_left": 34,
		"renew_soon": false,
		"can_pay": true
	},
	"pending": null,
	"limits": { "free": { "domains": 50, "…": 0 }, "unlimited": { "domains": 1000, "…": 0 } }
}

GET /v1/provider carries plan too, and its limits are the ones in force now. Errors: 503 billing_off (payments are off on the server), 409 prepaid_max (paid 12 months ahead), 502 payment_unavailable (the payment service did not answer).

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