Zenovay uses pay-as-you-go (PAYG) pricing for usage that exceeds your plan's free event quotas. Every paid plan includes a generous allocation of free website events, API requests, and proxy events each billing cycle. Once you exceed those quotas, overage charges apply per 100,000 additional events. Pro plans pay standard rates ($12 per 100K website events, $15 per 100K API requests, $10 per 100K proxy events), and Scale and Enterprise plans pay progressively lower rates. Free plans do not include PAYG — tracking stops at 10,000 events. You can monitor your usage in real time on the Usage page in Settings and turn PAYG on or off to control overage charges.
How PAYG Works
Pro PlanPay-as-you-go pricing ensures you never lose data due to traffic spikes:
- Use your free quota — Each billing cycle, your plan includes a set number of free events across three categories: website events, API requests, and proxy events.
- Exceed the quota — When your usage passes the free allocation, overage billing activates automatically (if PAYG is enabled).
- Pay per 100K events — Overage is calculated in units of 100,000 events, rounded up to the next whole unit.
- Billed at cycle end — Overage charges appear as a separate line item on your regular invoice at the end of your billing cycle.
PAYG is only available on Pro, Scale, and Enterprise plans. Free plan tracking stops at 10,000 events per month.
Free Event Quotas
Every paid plan includes free events before any overage charges apply:
| Plan | Free Website Events | Free API Requests | Free Proxy Events |
|---|---|---|---|
| Free | 10,000 | — | — |
| Pro | 100,000 | 50,000 | 100,000 |
| Scale | 1,000,000 | 500,000 | 1,000,000 |
| Enterprise | Custom | Custom | Custom |
What Counts as an Event
| Event Type | Examples |
|---|---|
| Website Event | Page views, custom events, goal completions, session starts |
| API Request | Calls to the Zenovay API (analytics queries, MCP tool calls) |
| Proxy Event | First-party tracking requests routed through your domain proxy |
Overage Rates
When you exceed your free quota, overage is charged per 100,000 events:
| Plan | Website Events (per 100K) | API Requests (per 100K) | Proxy Events (per 100K) |
|---|---|---|---|
| Pro | $12 | $15 | $10 |
| Scale | $10 | $12 | $8 |
| Enterprise | $8 | $10 | $5 |
Higher tiers pay lower per-100K rates, so the more you scale, the less each additional block of events costs.
Example Calculations
Pro Plan — Website Event Overage:
- Free quota: 100,000 website events
- Actual usage: 250,000 website events
- Overage: 150,000 events (rounded up to 2 units of 100K)
- Overage charge: 2 x $12 = $24.00
- Total bill: $20 (plan) + $24 (overage) = $44.00
Scale Plan — API Request Overage:
- Free quota: 500,000 API requests
- Actual usage: 800,000 API requests
- Overage: 300,000 requests (3 units of 100K)
- Overage charge: 3 x $12 = $36.00
- Total bill: $90 (plan) + $36 (overage) = $126.00
Scale Plan — Mixed Overage:
- Website events: 1,200,000 (200K over quota) = 2 x $10 = $20
- API requests: 600,000 (100K over quota) = 1 x $12 = $12
- Proxy events: 900,000 (within quota) = $0
- Total overage: $32.00
Monitoring Your Usage
Open the Usage page
Go to Settings → Usage to view your current period statistics.
Review your usage breakdown
The Usage page shows your monthly website events, first-party proxy events, and any overage, each with the current count, the free limit, and a progress bar. The detailed per-resource meters (API keys, MCP, interviews, domains, team members) live on the Limits and Quotas sub-page.
Watch for usage warnings
Zenovay automatically shows a banner when you approach a quota (around 80% and again at 95%). You do not need to configure thresholds, the warnings appear on their own.
Turn PAYG on or off
On the Usage page, paid plans have a Pay-as-you-go toggle under Extras. With it on, tracking continues past your free quota and overage is billed at the rates above. With it off, tracking is capped at your free quota for the rest of the cycle so you are never charged for overage.
API Usage Check
If you have a Zenovay API key (Pro plan and above), you can also check usage programmatically:
curl -H "Authorization: Bearer YOUR_API_KEY" \
https://api.zenovay.com/api/external/v1/usage
Choosing the Right Plan
Use overage costs to determine when upgrading makes sense:
| Monthly Website Events | Best Option | Estimated Monthly Cost |
|---|---|---|
| Under 100K | Pro (within quota) | $20 |
| 100K - 300K | Pro + PAYG overage | $20 + $12-24 |
| 300K - 600K | Pro + PAYG overage | $20 + $24-60 |
| 600K+ | Upgrade to Scale | $90 (with 1M free) |
| 1M - 2M | Scale + PAYG overage | $90 + $10-100 |
| 2M+ | Contact Enterprise | Custom pricing |
Rule of thumb: If you consistently pay more than $50/month in Pro overage, upgrading to Scale saves money.
FAQ
How is PAYG overage calculated?
Overage is calculated per 100,000 events for each event type (website, API, proxy) independently. Partial units are rounded up to the next whole 100K — if you go 150,000 events over quota, you pay for 2 units.
When do PAYG overage charges appear on my invoice?
Overage charges are calculated at the end of your billing cycle and appear as separate line items on your regular monthly invoice.
Can I disable PAYG overage billing?
Yes. Go to Settings → Usage and turn off the Pay-as-you-go toggle under Extras. Tracking will then stop when you reach your free quota instead of incurring overage charges.
Does the Free plan support PAYG?
No. Free plans use a hard limit of 10,000 events per month. Upgrade to Pro or higher to enable pay-as-you-go overage billing.
Do unused free events roll over to the next month?
No. Free event quotas reset at the start of each billing cycle. Unused events do not carry over.
What happens if I turn PAYG off and hit my quota?
Tracking pauses for the remainder of the billing cycle, the same way the Free plan's hard limit behaves. Your existing data is preserved. You can turn PAYG back on, or upgrade your plan, to resume tracking.
Are overage rates the same for all event types?
No. Website events, API requests, and proxy events each have different per-100K rates. On every tier, API requests are the most expensive and proxy events are the least expensive.