Every plan includes F1, F2, F3, and F1 Academy historic + live data, the unified cross-series driver model, the same /v1 surface. The plans differ on how much you use it — pick the one that matches your traffic and switch from the account page anytime.
Every successful REST call to /v1/* counts as one request. 4xx and 5xx responses don't count against your monthly quota. Rate-limit rejections (429) similarly aren't billed.
A session-hour is one open subscription to one live session for up to one hour. Subscribing to two concurrent sessions for 30 minutes each = 1 session-hour. Frame volume itself is not billed.
You get an HTTP 429 with a Retry-After header. We never auto-upgrade — your bill stays predictable. Bump up to the next plan or wait until the window resets.
Yes — Enterprise customers get an annual contract with NET-30 invoicing, a private rate-limit pool, custom data exports, and a named technical contact.
Yes. Indie and Pro plans are month-to-month via Stripe. Cancel from your /account page and the subscription ends at the close of the current billing period.
All plans cover F1, F2, F3, and F1 Academy — historic and live. There are no per-series add-ons; what you see in the docs is what every plan ships with.