Billing & limits
Kynasmith bills based on accepted frames — the pose frames that are successfully processed during your detection sessions. This page explains how billing works and how to manage your usage.How billing works
- Your organization is on a plan that includes a monthly quota of accepted frames.
- Each detection session submits pose frames to Kynasmith.
- Frames that are accepted and processed count toward your monthly usage.
- When your usage approaches or exceeds your quota, the API returns billing-related errors.
Checking your usage
You can check your current usage in the portal at app.kynasmith.dev under Settings > Usage, or through the API:GET /api/usage— Organization-level usage summaryGET /api/usage/projects/{project_id}— Project-level usage breakdown
Quota and plan limits
Billing error codes
When a billing limit blocks an operation, the API returns one of these error codes:
See Error codes for the full error response format.
Rate limits vs. billing limits
Rate limits and billing limits are enforced separately:- Rate limits (HTTP 429) protect service stability. They are per-minute request caps that apply equally to all customers. Retry after the indicated duration.
- Billing limits (HTTP 403) enforce your plan’s usage quota. They require a plan upgrade or waiting for the quota reset — not just retrying.
Managing costs
- Monitor usage regularly through the portal or usage API to avoid surprises.
- Use
replaymode for testing with short sample videos to minimize frame consumption during development. - Scope browser tokens narrowly with
sessions:writeto prevent accidental MoveSpec modifications. - Finalize or cancel sessions promptly to avoid frames being counted from idle sessions.