Optionaladcp_The AdCP major version the buyer's payloads conform to. When provided, the seller validates this against its supported major_versions and returns VERSION_UNSUPPORTED if the version is not in range. When omitted, the seller assumes the highest major version it supports.
OptionalprotocolsSpecific protocols to query capabilities for. If omitted, returns capabilities for all supported protocols.
OptionalcontextOptionalext
Request payload for get_adcp_capabilities task. Protocol-level capability discovery that works across all AdCP protocols.