Gateway scope & capability boundaries (overview)

Boundary table

AreaUsually in scopeUsually out of scope / bespoke
Protocol/v1/chat/completions and related OpenAI-shaped endpoints (as enabled)Non-OpenAI native SDKs unless stated
IdentityVirtual Key → customer account & budgetsEnd-user OAuth / multi-tenant SSO (later / separate)
Catalogmodel routed to configured SKUsArbitrary model strings with no mapping
Billingusage records aligned to price bookreconciling customer estimates vs platform bills without tickets + request id
Complianceper contract / DPAabsolute claims like “never touches third-party model vendors”

See also