IAB Tech Lab held its Tech Lab Summit 2026 on May 28, drawing nearly 400 publishers, agencies, brands, platform operators, and technologists to a sold-out full-day event framed around a single question: what does digital advertising look like when AI agents, not humans, become the primary actors on the web?

The answer that emerged from a day of fireside chats, technical demonstrations, and panel discussions was not reassuring in its simplicity. According to IAB Tech Lab, the industry is no longer preparing for an agentic future - it is actively building one, with all the unresolved questions that entails.

From Alan Turing to autonomous agents

IAB Tech Lab CEO Anthony Katsur opened the Summit with a history of AI development stretching back more than 70 years. The arc he traced ran from Alan Turing and the logic era, through the machine learning that underpinned Google PageRank, DoubleClick, and Yahoo's ad auctions, to today's emergence of autonomous agents. The historical framing carried a pointed argument: AI is not new to digital advertising. What is new is the capacity for these systems to act rather than merely analyze.

Katsur noted that automation, optimization, and machine learning have long been foundational to programmatic ecosystems. The distinction he drew was between assistants that answer questions and agents that execute tasks. That capability shift is what he argued could change the structure of the entire web, not just advertising within it.

Sir Tim Berners-Lee and the question of human visits

The Summit's most anticipated session was a fireside chat between Katsur and Sir Tim Berners-Lee, the inventor of the World Wide Web. According to IAB Tech Lab, Katsur acknowledged that few people could make him nervous - but this was one who absolutely did.

The central question the two addressed was whether humans will continue visiting websites in a world increasingly mediated by AI agents. No clean answer emerged. According to IAB Tech Lab's account of the session, Berners-Lee acknowledged that agents may increasingly handle routine discovery and information retrieval. But he emphasized that people will continue seeking experiences built around creativity, music, poetry, art, and human expression. Attention and intent, he argued, remain valuable. Human curiosity, he suggested, is irreplaceable.

Berners-Lee also pressed a theme that would resurface throughout the day: individuals must maintain control of their own data. He referenced the SOLID project and the concept of personal data "Pods" - systems that would allow consumers, rather than platforms and agents, to hold complete authority over access, permissions, and identity. The challenge he put to the industry was to build infrastructure where AI serves human interests rather than substituting for them.

AAMP and the infrastructure being built

A significant portion of the day was dedicated to showing what organizations are actually constructing. Much of that work centers on infrastructure, and much of that infrastructure connects to IAB Tech Lab's Agentic Advertising Management Protocols (AAMP) initiative - formally named on February 26, 2026, following months of development that included the Agentic RTB Framework v1.0 in November 2025 and a comprehensive agentic roadmap published January 6, 2026.

Stephanie Layser from AWS demonstrated how buyers and sellers can begin testing agentic workflows today using agents built on the AAMP framework. According to IAB Tech Lab, those agents can discover inventory, create media plans, and facilitate deal creation. The "Agents for Advertising" environment is ready to deploy and is designed to help the ecosystem test and build workflows - a critical first step for organizations that typically lack dedicated resources for experimental infrastructure. The team generated a workflow live on stage during the session, giving attendees a direct look at how advertising operations may increasingly be configured through natural language rather than manual setup.

Snowflake's Eric Batscha and dentsu's Rebekah Shalit contributed a concrete operational data point: according to their discussion, client teams often spend 20 to 30 percent of their time on campaign setup and operational tasks. Automating those processes through agentic workflows, they argued, could free teams to focus on strategy and creative work.

OMD's Ben Hovaness and WPP Media's Lauren Wetzel each addressed fragmentation and interoperability. According to IAB Tech Lab's account of the session, Wetzel argued that collaboration between agencies and publishers is critical, describing publishers as "the intelligence partner that will help establish the right value exchange."

Marika Roque of Kerv made a related but distinct argument: agents are valuable specifically because they can synthesize the vast amounts of data that the ecosystem produces into actionable intelligence. According to IAB Tech Lab, Roque called on Tech Lab to continue building on existing standards to unlock that value in agentic advertising - and noted the condition that must be met first: interoperable handshakes between systems. Without those, the data remains inaccessible.

The AAMP Agent Registry reached 10 entries in mid-March 2026, adding Amazon, Burt Intelligence, Optable, Dstillery, and HyperMindZ.ai as participants, all operating under the Model Context Protocol standard. Kochava opened its StationOne platform to public beta on March 25, 2026, providing the first accessible sandbox where practitioners can test standards-compliant agentic workflows without executing real transactions.

Publishers and the economics of bot traffic

Perhaps no segment of the day carried more immediate stakes than the sessions focused on publishers. INMA's Gabriel Dorosz outlined how AI-driven experiences are already disrupting traditional publisher traffic patterns while simultaneously being integrated into newsroom operations and business workflows. According to IAB Tech Lab's summary, publishers that are innovating the advertising experience in response are winning. Those that are not are being forced to rethink their businesses entirely.

The non-human traffic problem is not abstract. Supertab's Joe Varvara highlighted that the percentage of web traffic from non-human sources continues to grow, as does token use by AI systems consuming content. That growth creates an economic problem: agents consume significantly more computational resources than humans, yet the economic models for compensating content creators remain underdeveloped.

People Inc. offered the most striking number of the day. According to IAB Tech Lab's account of the session hosted by Tech Lab COO Shailley Singh with Fastly's Simon Wistow and People Inc.'s Lindsay Van Kirk, People Inc. is now blocking over 30,000 user agents from accessing their content. The shift the session examined was a movement by organizations from blocklists to allowlists - a more selective and operationally intensive approach to managing automated traffic that reflects how much the bot environment has changed.

Varvara argued that the first step is transparency: understanding how content is accessed and used, so that a marketplace for that access can start to develop. The CoMP specification published by IAB Tech Lab in March 2026 attempts to build that marketplace by creating mechanisms for AI systems to compensate content owners when consuming their content. New usage-based commerce models are part of that effort.

The broader traffic context reinforces the urgency. Research published by Index Exchange in March 2026 found that 69 percent of publishers on that platform experienced year-over-year declines in ad opportunities throughout 2025, with an average decline of 14 percent. Cloudflare and ETH Zurich published research in April 2026 finding that 32 percent of all traffic crossing Cloudflare's network originates from automated sources, with AI crawlers driving disproportionate cache degradation.

Perplexity was referenced during Summit discussions on AI content consumption, having acknowledged earlier in the day that AI bots need quality content to be valuable - a point that creates at least the theoretical basis for a compensation framework, even if the practical terms remain contested.

Protocol proliferation and the fragmentation risk

One tension running beneath the surface of the day was the risk that agentic advertising generates as many standards as it solves problems. The Ad Context Protocol launched in October 2025 drew immediate debate about whether the sector needs another protocol when existing standards remain underutilized. LiveRamp donated the User Context Protocol to IAB Tech Lab in November 2025. Multiple technical specifications have been added to the stack in quick succession.

The AAMP initiative is, in part, a response to that fragmentation risk. Its three-pillar architecture - Agentic Foundations, Agentic Protocols, and Trust mechanisms - was designed to consolidate rather than multiply. The decision to extend existing standards including OpenRTB, AdCOM, OpenDirect, and VAST with modern protocols such as Model Context Protocol, rather than replacing them, reflects a deliberate choice to preserve interoperability. Katsur called out standards development as essential throughout the Summit, framing them not as bureaucratic process but as practical infrastructure without which agentic advertising cannot scale safely.

There was general agreement throughout the day that if done correctly, agentic systems will bring about better decision-making and more intelligent marketing. For both buyers and sellers, that framing was offered as the real value of the automation that agentic technologies promise to deliver.

What the Summit demonstrates

Tech Lab Summit 2026 was held against the backdrop of a year in which the infrastructure of agentic advertising moved from theoretical to operational. The event itself drew participation from a broad sponsor base including Kerv, Meta, Optable, Permutive, The Trade Desk, Coactive, Didomi, Ethyca, Fastly, ID5, LiveRamp, Mobian, Ogury, Supertab, Zeroma, Adops.com, Arcspan, Human, Lemma, and Veylan - a cross-section of the programmatic ecosystem that signals how widely the agentic infrastructure conversation has spread.

What the day made concrete is how much remains unsettled. The economic models for compensating publishers are underdeveloped. The identity and accountability infrastructure for agents is still being built. The question of whether humans will continue to drive web traffic - and whether advertising economics can adapt if they do not - has no clean answer. What the Summit demonstrated is that the industry has stopped treating those as future problems.

IAB Tech Lab has signaled its next organizational step: an Agentic Task Force open to industry participation, described as the vehicle for continuing the conversations started at Summit and for building the standards and infrastructure that the agentic web requires.

Timeline

  • January 6, 2026 - IAB Tech Lab announces a comprehensive agentic roadmap extending OpenRTB, AdCOM, VAST, and OpenDirect with modern protocols including MCP. PPC Land coverage
  • February 26, 2026 - IAB Tech Lab formally names its umbrella initiative AAMP, clarifying three pillars and announcing the Agent Registry. PPC Land coverage
  • March 10, 2026 - IAB Tech Lab publishes the CoMP specification for compensating publishers when AI systems consume their content. PPC Land coverage
  • March 11, 2026 - IAB Tech Lab Agent Registry reaches 10 registered entries including Amazon, Optable, and HyperMindZ.ai, all under the MCP standard. PPC Land coverage
  • March 25, 2026 - Kochava opens StationOne to public beta, providing the first accessible AAMP-compliant sandbox for agentic workflow testing. PPC Land coverage
  • March 31, 2026 - Index Exchange publishes data showing 69 percent of publishers experienced year-over-year ad opportunity declines throughout 2025. PPC Land coverage
  • April 2, 2026 - Cloudflare and ETH Zurich publish research finding 32 percent of all network traffic originates from automated sources. PPC Land coverage
  • May 28, 2026 - IAB Tech Lab holds Tech Lab Summit 2026: Welcome to the Agentic Web, a sold-out full-day event in New York drawing nearly 400 attendees including Sir Tim Berners-Lee.

Summary

Who: IAB Tech Lab, led by CEO Anthony Katsur, hosted the event. Attendees included Sir Tim Berners-Lee, representatives from AWS (Stephanie Layser), Snowflake (Eric Batscha), dentsu (Rebekah Shalit), OMD (Ben Hovaness), WPP Media (Lauren Wetzel), Kerv (Marika Roque), INMA (Gabriel Dorosz), Supertab (Joe Varvara), Fastly (Simon Wistow), People Inc. (Lindsay Van Kirk), and Perplexity, alongside sponsors from across the programmatic industry.

What: Tech Lab Summit 2026 was a sold-out full-day event titled "Welcome to the Agentic Web," covering agentic AI infrastructure, advertiser and publisher workflows, identity and privacy frameworks, content monetization under bot traffic pressure, and the standards required to make machine-to-machine advertising operate reliably. Live demonstrations of AAMP-based agentic workflows were conducted on stage. People Inc. disclosed blocking over 30,000 user agents. The shift from blocklists to allowlists for managing automated traffic was examined in detail.

When: The Summit was held on May 28, 2026.

Where: The event took place in person, drawing a sold-out audience of nearly 400 professionals from across publishers, agencies, brands, platforms, and the broader technology sector.

Why: The advertising industry is navigating a structural shift in which AI agents are beginning to replace human users as the primary actors in content discovery, media planning, and campaign execution. Standards that govern how those agents identify themselves, transact, and compensate publishers do not yet exist at scale. The Summit addressed that gap directly, with IAB Tech Lab framing standards development as the essential enabling condition for a functional agentic advertising ecosystem - one where publishers can be compensated, buyers can operate with confidence, and human oversight remains possible.