Agent-to-Agent Ad Buying Just Went Live. Your DSP Contract Just Got Interesting.
The programmatic supply chain has operated on roughly the same logic for over a decade. An advertiser's money flows through a DSP, crosses an exchange, lands on an SSP, and eventually reaches a publisher. Each layer takes a cut. Combined, those cuts typically absorb about 20% of every dollar an advertiser spends before it even touches a publisher's inventory.
That arrangement just got its first real structural challenge.
Swivel, an AI ad operations company, and CTV platform Olyzon announced a partnership this week that puts buy-side and sell-side AI agents in direct conversation with each other. No DSP in between. No SSP routing the deal. Agents on both sides negotiate campaign terms, access inventory, and execute buys through a shared protocol called AdCP (Ad Context Protocol), an open-source standard built on top of Anthropic's Model Context Protocol.
In plain terms: the machines are cutting out the middlemen. And the middlemen charge about 10% on each side.
This stopped being theoretical about three months ago
It would be easy to file this under "interesting but early." A year ago, that would have been fair. It is not anymore.
PubMatic launched AgenticOS in January. In early campaigns, it reduced supply chain costs by up to 50% and sped up campaign setup by 87%. They have run more than 250 agentic campaigns since then. The IAB Tech Lab released its agentic roadmap the same month, extending OpenRTB and AdCOM standards to support agent-to-agent transactions. eMarketer estimates that 70% of digital ad spend is now managed by some form of agentic AI, though most of that is still optimization within existing platforms rather than agent-to-agent trading.
The infrastructure exists. The standards are being written. The campaigns are running. What was a concept at CES 2025 has a protocol, a governance body, and real performance data in Q2 2026.
The fee question Olyzon's CEO just made uncomfortable
The most interesting quote from the AdExchanger piece came from Olyzon's CEO, who pointed out that advertisers "end up paying a DSP and an SSP fee for something that can be processed in a different way in an agentic world."
That "different way" is the part worth sitting with for a minute.
DSPs and SSPs historically justified their fees by providing services that were genuinely hard to replicate: audience targeting, real-time bidding infrastructure, yield optimization, fraud filtering, reporting. A combined 20% cut seemed reasonable when the alternative was calling publishers one by one and negotiating insertion orders by hand.
But agents can target, bid, optimize, and report. If an AI agent on the buy side can talk directly to an AI agent on the sell side, and if both can access the same inventory, run the same optimization logic, and execute the transaction over an open protocol, then the question becomes uncomfortable pretty quickly. What exactly is the DSP doing that the agent cannot?
I think the honest answer, at least for most programmatic display and CTV, is "less than it used to." The DSP still handles billing, contracts, measurement integration, and platform reliability. Those are real services. But they are probably not 10%-of-spend services when the agent layer can handle the parts that used to justify most of that margin.
From what I have seen in the conversations happening around renewals right now, the teams who are already bringing this up are getting better terms. Not because their DSP wants to lower fees. Because their DSP knows someone else will.
Two protocols, one messy transition
One thing that makes this trickier than it looks on paper: there are competing standards.
AdCP is backed by a coalition that includes Optable, PubMatic, Scope3, Swivel, Triton Digital, and Yahoo. It is open-source, built on MCP, and designed to let agents from different companies communicate in a structured way. Publishers can run AdCP and OpenRTB simultaneously, which is a smart way to lower the switching cost. Then there is ARTF, a competing framework with its own backers and a slightly different approach to the same problem.
The IAB Tech Lab is trying to play neutral arbiter, releasing open-source reference implementations and standardized agent profiles that could work with either approach. But realistically, the industry is heading into 18 to 24 months of messy coexistence before one approach wins or they converge. If you have been in ad tech long enough, this will feel familiar. Remember the header bidding wrapper wars? Same energy, different acronyms.
For most media buyers, the practical implication is simple: you do not need to pick a side yet. But you do need to know this is happening, because your next vendor contract negotiation is going to be shaped by it whether you bring it up or not.
Four things to add to your next programmatic audit
If you manage programmatic budgets, CTV especially since that is where agent-to-agent trading is furthest along, here is what I would add to your next quarterly review.
Audit your actual tech fees, not the rate card. Most advertisers know their DSP charges "around 10%." Fewer know the effective rate after data fees, measurement add-ons, and platform markups stack on top. Run a real audit. If your combined tech tax exceeds 25%, you are overpaying for infrastructure that is actively being commoditized.
Ask your DSP about agentic capabilities. Not as a feature request. As a diagnostic. Yahoo has agentic capabilities live in its DSP already. PubMatic's AgenticOS is running campaigns with real clients. If your current platform has no agentic roadmap at all, that tells you something about where they think the next two years are heading.
Run a parallel test. If you spend more than $50K per month on CTV, you have enough volume to test an agentic buy alongside your existing DSP. The Swivel/Olyzon partnership is live with early brand clients including Pierre Fabre Group. PubMatic is accepting partners into its acceleration program. The data from a single campaign will tell you more than six months of conference panels ever could.
Check your contracts for lock-in. Some DSP agreements include spend commitments or exclusivity terms that make it harder to test alternatives. If you are signing or renewing in 2026, negotiate the flexibility to run agentic channels alongside your primary platform. This is the kind of clause that costs you nothing today and saves you real money in 12 months.
We wrote about a related shift in outcome-based AI pricing models recently. The pattern is the same: the cost structure of marketing technology is being renegotiated in real time, and the teams paying attention to the terms are getting better deals than the teams renewing on autopilot.
The middle layer has about 18 months to redefine its value
The Swivel/Olyzon announcement is one partnership. It is not the end of DSPs. It is not the end of SSPs. The programmatic ecosystem has survived every "this changes everything" prediction thrown at it for 15 years, and the infrastructure companies have a track record of adapting when they need to.
But this one has numbers behind it. A 50% reduction in supply chain costs is not a pitch deck metric from a seed-stage startup. It came from live PubMatic campaigns. And 250 agentic campaigns in three months suggests the adoption curve is steeper than the incumbents might prefer.
The DSPs and SSPs that survive this transition will probably be the ones that stop charging for access (agents can get access themselves now) and start charging for things agents genuinely struggle with: cross-platform measurement that actually reconciles, creative optimization across wildly different formats, and brand safety in environments that are harder to crawl. The ones that keep charging infrastructure fees for infrastructure that is becoming a commodity are, honestly, going to have a rough 2027.
I don't think most media buyers need to restructure their programmatic stack this quarter. But I do think the next time your DSP sends a renewal, you should bring the agentic conversation to the table. Not because you are going to switch tomorrow. Because the fact that you could switch changes the math on what you should be paying today.
