Get Odds Batch

Odds for up to 20 fixtures in ONE request — the batched form of /events/{id}/odds.

A slate sweep is otherwise N calls, which is what drives callers into the per-minute limit. This counts as a single request against both budgets, so batching is strictly cheaper than looping.

Requires an API key: the whole point is a large multiplier on one request, and handing that to anonymous callers would undo the keyless daily cap. A free key (no card) is enough.

Filters (bookmakers / markets / period / format) apply to every entry, and tier gating is identical to the single-fixture route — Free still sees no sharp books here. Ids that don't resolve fail their own entry only; the rest of the batch still returns.