GET /api/v2/buyer/storefronts/{storefrontId}/capabilities
Returns source-level diagnostic rows for active sources behind a storefront the buyer can see. External AdCP sales-agent sources are capability-checkable and include cached-or-refreshed capability details. Managed ad-server-backed sources are included with probeable: false and probeStatus: "not_applicable"; do not treat those rows as unreachable agents.
Capability lookups use the platform’s normal cache and refresh policy. A probeStatus: "reachable" row means capabilities are currently available for routing and diagnostics — this includes both live HTTP-probed capabilities and in-process synthesized capabilities for official adapter and ESA storefronts. It is not a guarantee that this request opened a fresh network connection to the agent.
Request
curl
Parameters
Response
Errors
401 UNAUTHORIZED— missing or invalid bearer token.404 NOT_FOUND— the storefront does not exist or is not visible to the caller.
Related
Get storefront
Rolled-up connection state
List storefronts
Paginated summaries