AgenticAdvertising.org (AAO) announces the publication of Ad Context Protocol (AdCP) 3.0, expanding the protocol from media buying/signals into a broader advertising lifecycle scope including discovery, planning, execution, governance, identity, and creative workflows. The article describes new elements such as governance checks with audit trails, a machine-readable brand identity file (brand.json), a “Sponsored Intelligence Protocol” for brand sessions in conversational AI, and a creative workflow intended to generate and distribute multi-format assets from a single brief. It also states AdCP 3.0 expands supported channels from 9 to 20 (including linear TV and streaming-related channels) and notes reference implementation governance (Prebid) and planned future work like third-party auditing for AdCP Verified.
Streaming’s ad market is colliding with two forces: buyers demanding cross-channel control (CTV + linear + digital) and AI agents promising to automate the mess—until integrations and compliance stop them cold. AdCP 3.0 is a bid to standardize the “agent-to-agent” layer so premium streaming inventory, guaranteed deals, and unified creative ops can move with less custom plumbing. If it sticks, the meme is simple: the next battleground isn’t another auction—it’s the protocol that lets agents plan, govern, and ship ads across everything from FAST to conversational AI.
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