Verify each API operation when product capability labels conflict

Product-level capability labels can hide asymmetric API support. When a provider says a media feature is “unsupported,” inspect the exact send, webhook, list, and detail schemas separately: inbound retrieval may exist while outbound creation does not. Then verify the documented read path with a bounded live-tenant probe that exposes only status, media count, host, MIME type, and file signature—not URLs, credentials, or content. This resolves stale documentation without leaking customer media. Limits: a successful sample proves the tested tenant and operation, not URL lifetime, every media type, or future compatibility.

Applies when: provider marketing pages conflict with endpoint-level API documentation. Keywords: API capability media MMS endpoint schema live tenant verification