IAB Tech Lab's OpenProposal Brings Agentic AI Into the RFP Workflow
The Development
IAB Tech Lab published a formal rationale for OpenProposal on September 22, 2026, setting out why the organisation is extending its agentic advertising framework into media planning. OpenProposal targets the RFP workflow — the structured back-and-forth between advertisers and publishers that precedes a media buy — and defines a machine-readable protocol that AI agents can use to issue, respond to, and negotiate proposals without human intervention at each step. The announcement positions OpenProposal as a logical extension of IAB Tech Lab's broader agentic advertising initiative, which has been building toward autonomous execution across the full campaign lifecycle. No implementation deadline was specified, but the publication signals that the working group is moving toward a draft standard.
Our Take
The RFP workflow is where media deals are actually structured, which makes it the most consequential point in the buying chain for an agentic standard to reach. IAB Tech Lab is doing what standards bodies do: commoditising the infrastructure so the market can build on top of it. The commercial implication is significant because once proposals can be machine-issued and machine-responded to at scale, the agency planning layer that currently earns margin on that process faces direct structural pressure. This is not a distant scenario — the protocol exists, working group participants are already inside it, and the first compliant platforms will have a head start in positioning for automated planning budgets as brand-side AI agents become mainstream in 2027.
What Changed
AI agents can now operate against a defined, interoperable protocol for the media RFP process. This moves agentic media participation from a proprietary integration problem — each DSP or publisher building its own handshake — to a shared standard that any compliant platform can adopt.
Marketing Impact
Media planning and investment teams face the most immediate impact. If AI agents handle RFP issuance and negotiation, the workflow that justifies significant agency headcount compresses sharply. In-house programmatic and investment leads need to understand how their buying stack will interface with OpenProposal-compliant inventory.
Competitive Implication
Publishers and SSPs that build OpenProposal compliance early gain discoverability by AI buying agents before the standard becomes table stakes. Agency trading desks operating on manual RFP workflows become structurally slower and more expensive relative to agentic alternatives running the same protocol.
Strategic Outlook
Expect IAB Tech Lab to release a draft OpenProposal specification in Q4 2026 or Q1 2027, with major DSPs and premium publishers announcing compliance in the months following. Agencies will face pressure to demonstrate agentic RFP capability or risk being disintermediated on planning mandates.
The Exploit
Action Item
Media investment leads at brands with programmatic budgets above $10 million should formally request their agency holding group's OpenProposal implementation roadmap before Q4 2026 planning commitments are locked — non-answers reveal integration gaps worth acting on.