Magnite builds a Seller Agent for AdCP standardization
Magnite has developed a 'Seller Agent' to interface with the early-stage open standard Advertising Context Protocol (AdCP). AdCP aims to standardize communication among advertising platforms, publishers, data providers, and AI agents, building upon the Model Context Protocol (MCP). The purpose of the Seller Agent is to provide a shared language for buyer and seller-side AI agents to interpret campaign goals, inventory, and audience signals.
Key Takeaways
- AdCP is built on Model Context Protocol (MCP) and is still described as an early open standard.
- Magnite’s Seller Agent is designed to interface with AdCP on the seller side.
- The protocol is meant to standardize communication among advertising platforms, publishers, data providers, and AI agents.
- AdCP gives buyer- and seller-side AI agents a shared language for campaign goals, inventory, and audience signals.
Why It Matters
Magnite’s Seller Agent is a practical test of whether AdCP can become a common layer for ad-tech systems talking to AI agents. If seller-side and buyer-side agents can use the same protocol to interpret campaign goals, inventory, and audience signals, that reduces ad hoc integrations across the stack. The competitive signal is that this sits on top of MCP, tying advertising infrastructure to a broader agent protocol rather than a one-off format. Watch for whether AdCP gains more named adopters beyond Magnite and whether more seller-side agents appear around the protocol.
Read full article at magnite.com
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