Adagents.json, from the brand side. It tells agents which websites, apps, and channels belong to a brand, and how. Useful when an agent needs to verify whether that "official" storefront actually belongs to the brand it claims to represent. Sometimes it does not.
Ad tech glossary
brand.json
Technical definition
In the AdCP ecosystem, a file where a brand declares the properties it owns or works with and the nature of each relationship (owned, direct or delegated).
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Related terms
- A2A (Agent2Agent Protocol)
- AAMP (Agentic Advertising Management Protocols)
- adagents.json
- AdCP (Ad Context Protocol)
- Agent Manifest
- Agentic Advertising
- Agentic Audiences
- Agentic Commerce
- Agentic Commerce Protocol (ACP)
- Agentic Marketplace
- AgenticAdvertising.org
- Answer-Based Ads
Where this shows up
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I'm clocking two kinds of advertising executives right now: Ones who treat AI like a procurement decision, and the ones treating it like a leadership test. One buys tools. The other builds teams that know how to use them.
The skills that survive
You cannot automate a decade of being trustworthy. You can't prompt your way to someone wanting to work with you for the next year.
The RFP Oracle
The ad tech sales season is wrapping up for 2026. AI dominated everything the market responded to this year, and it was the most predictable trend ever. All we had to do was pay attention to what the agencies were asking.