Free backend tool
Backend Capacity and Pricing Calculator
Estimate the McpBackend plan your application needs from project count, database storage, API requests, and monthly row reads and writes.
Updated July 17, 2026
Estimate the smallest plan that fits
Recommended plan
Starter
$16/mo equivalent · $190 billed yearly
- 10 projects
- 500 MB database storage
- 500k API requests / mo
- 300k writes / mo
- 20M reads / mo
Use a realistic production estimate
Start with actual frontend behavior: page loads, background refreshes, writes per user action, scheduled imports, and the number of separate applications you expect to operate. Add headroom for launches and traffic spikes instead of sizing to an average quiet day.
| Input | Practical estimate |
|---|---|
| Projects | One per independently deployed application or environment that needs its own database |
| Storage | Current data plus expected monthly growth and retention |
| API requests | Active users × requests per session × sessions per month, plus background jobs |
| Rows written | Creates, updates, and deletes triggered by users, imports, and automations |
| Rows read | Rows scanned by queries; indexes and selective filters reduce this substantially |
Hard limits protect the bill
McpBackend does not convert a traffic spike into an automatic overage. Monthly request caps return a quota response when exhausted, while write and storage caps stop new mutations and leave reads available.
Frequently asked questions
What counts as an API request?+
Each request to a generated project data API counts toward the monthly request limit. Control-plane dashboard and MCP operations are separate from application data traffic.
What counts as a row read?+
Database work is metered by rows read. A well-indexed filtered query can read far fewer rows than an unindexed scan, even when both return the same result.
Will McpBackend charge an overage automatically?+
No. Limits fail closed. When a monthly cap is reached, the API returns a clear quota response instead of creating an unplanned overage charge.
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