Optionaladcp_The AdCP major version the buyer's payloads conform to. Sellers validate against their supported major_versions and return VERSION_UNSUPPORTED if unsupported. When omitted, the seller assumes its highest supported version.
Standards configuration to calibrate against
Client-generated unique key for at-most-once execution. If a request with the same key has already been processed, the server returns the original response without re-processing. MUST be unique per (seller, request) pair to prevent cross-seller correlation. Use a fresh UUID v4 for each request.
OptionalcontextOptionalext
Request parameters for evaluating content during calibration. Multi-turn dialogue is handled at the protocol layer via contextId.