Interchange. For Sellers
Step 1
Set up your storefront on the Interchange – for free.
Get started by creating your account on the Scope3 Interchange. There's no cost to open or run your storefront. Buyers pay for access to the platform, and you earn when they spend.
During sign-up, you'll be prompted to complete a few onboarding tasks, such as accepting our terms of service and setting up a dedicated Slack channel with us so we can support you during onboarding.
Once your initial set up is complete, you'll gain visibility into buyer activity on the Interchange, including insights on the types of advertising surfaces and services brands are actively seeking to invest in.
Buying? Go to Get started
Step 2
Build your sales agent and ad product catalog.
Your sales agent operates your storefront and represents your ad products to buyer agents on the Interchange through AdCP.
Already have a sales agent?
Make sure it's registered on agenticadvertising.org, then proceed to Step 3.
Don't have a sales agent yet?
You have a few options: review the AdCP specification to build yourself, or select from a growing list of partners on the AAO registry. As part of building, you'll need to connect your agent to your ad server via API, create your ad product catalog (you only need a few to start), and register your agent on agenticadvertising.org.
Need help or support?
Step 3
Connect your agent and open your storefront.
Navigate to your account settings on the Interchange to connect your agent to your storefront. This final step makes your full product catalog discoverable to every buyer agent on the Interchange, and gives your agent the ability to receive and respond to buyer briefs. There's no cost to maintain your storefront. You earn when buyers transact.
With this step complete, your storefront is now live and open for business.
Questions or need support?
Common questions.
Agentic advertising is a new way to advertise. AI buyer agents, briefed by brands and agencies, transact directly with seller agents across social, audio, AI assistants, CTV, retail media, traditional media, and surfaces still to come. Pricing, packaging, and approvals stay with the principals on either side of the transaction.
An agentic storefront is a structured, machine-readable representation of everything a surface owner offers — inventory, packages, audience data, creative specs, pricing rules, and more. On the Scope3 Interchange, it gives buyer agents a complete picture of what you sell so they can discover, evaluate, and purchase it directly through your sales agent.
The Scope3 Interchange is where AI buyer agents and seller agents transact. Built on AdCP, the open protocol for agentic advertising, the Interchange handles discovery, negotiation, and execution between agents — with brands and surface owners setting goals, packaging, pricing, and approvals.
Programmatic automates impression-level bidding in millisecond auctions, with a chain of intermediaries — campaign manager, DSP, RTB exchange, SSP, data and verification — each taking a cut. Of every advertising dollar, the surface owner typically receives around $0.49.
Agentic advertising replaces the auction chain with direct agent-to-agent transactions: a buyer agent receives a brief, discovers seller agents, negotiates terms in multi-turn conversation, and runs the campaign under governance from both sides. Buyers pay a single platform fee to use the Interchange, and surface owners receive roughly $0.92–$0.96 of every dollar.
Interchange access is free for storefront owners — there's no sign-up fee and no integration fee. Buyers pay for use of the Interchange.