One call, from inside a brand's own pipeline

Nobody opens this page in real life. A brand's generation pipeline makes this one call from its own code, before it produces anything.
Their tools, their interface, their workflow. We are a step inside it, not a product they log into.

POST /check
{ "subject": "4KQXW7ZP2NTLD6YHS3MRVA9JBC5EGU8F", "scope": "campaign-print" }