Define the smallest useful catalogue, establish permission for the intended use, then run a bounded integration pilot before making a substantial commitment. Treat written authorisation, observed availability and legal suitability as separate approval gates—not components of one reassuring supplier score.
A working demo URL is not sufficient procurement evidence. The US Copyright Office explains that permission or a licence is one route to lawful use, while recognising copyright exceptions; the Library of Congress recommends obtaining written permission that describes the material, intended use, duration and context. This guide adopts documented authorisation as a buying requirement rather than attempting to decide whether an exception applies to an individual embed. (copyright.gov)
Scope: independent publishers buying access to games with no real-money stake or prize. Purchased currency, redeemable rewards, paid entry, sweepstakes and wagering functionality should trigger a separate product and legal review.
Evidence boundary: this is a procurement framework based on public documentation. No supplier contracts, authenticated catalogues, device tests or US location tests were provided. Supplier examples below are qualification leads, not endorsements or findings of nationwide availability. Checklists, sample scopes and decision rules are proposed buyer controls, not industry benchmarks.