Find reference films for a business video (free).

References are short films from refs.video that match a business video's category, shape and length, shown 4 at a time, each credited "References by refs" and playable in place from its original post through that platform's own player (embed; never rehosted), or shown by its stills when its post cannot be embedded. Choosing one makes its pacing — average and longest shot, cut rate, first cut, voice — the planner's target, as numbers only: a reference is an idea, never content to copy. Finding, choosing and clearing a reference are free; product projects only. A POST although it only reads: what the writer is making rides the JSON body, never a URL an access log could keep. refs receives the abstracted brief — one category, one shape and a duration band — and at most four plain keywords drawn from the feature names and notes (single lowercase words: never the notes themselves, the product's or the release's name, a person's name, a number or a link), so what the writer types changes which films come up; keywords answers the words sent (empty when none were, or the day's keyword headroom is used). The films are then put in order of fit to the whole intent on our side: order: 'fit', else the search's own order (order: 'refs': no intent given, or the order could not be read now). A story project is 409 project_not_product; switched off or not open to this account is 403 references_unavailable; the day's free finds used up is 429 reference_allowance_reached. Scope: story:read.