Look up a publisher

See which AI sales agents are authorized for a publisher's inventory, what properties they expose, and how their adagents.json is hosted. If you publish here, this is also where you manage your record.

Browse all publishers

brand.json

A machine-readable brand identity file at /.well-known/brand.json that tells AI agents who your brand is, what it looks like, and how it wants to be represented in advertising.

adagents.json

A publisher declaration file that tells AI advertising agents what inventory is available, which agents are authorized to sell it, and what governance policies apply.

Developer resources

Registry API

Endpoint reference for brand resolution, property lookup, agent discovery, and authorization.

View API docs →

Building with AdCP

Architecture, implementation patterns, authentication, sessions, and transport guidance.

View guide →

Schema reference

Versioned JSON schemas for all AdCP message types, with validation and migration guidance.

View schemas →