A single, definitive, citable answer to one question.https://whatisagenticbuying.com/en-ushttps://whatisagenticbuying.com/https://whatisagenticbuying.com/Agentic buying is software buying advertising from software: an agent representing the advertiser and an agent representing the publisher agree terms over a machine-readable protocol and book the campaign, with no human rekeying a brief or an insertion order.Wed, 12 Aug 2026 00:00:00 GMThttps://whatisagenticbuying.com/how-it-works/https://whatisagenticbuying.com/how-it-works/How agentic buying works, step by step: a buyer's agent finds the publisher's agent through a file on the publisher's own domain, asks what it can sell, clears the spend against a budget policy, books the campaign, then reads delivery back.Wed, 12 Aug 2026 00:00:00 GMThttps://whatisagenticbuying.com/agentic-buying-vs-programmatic/https://whatisagenticbuying.com/agentic-buying-vs-programmatic/Agentic buying negotiates a whole media buy over an agent protocol while programmatic clears one impression per auction in milliseconds, and whether that counts as a real difference depends on which specification you point at.Wed, 12 Aug 2026 00:00:00 GMThttps://whatisagenticbuying.com/about/https://whatisagenticbuying.com/about/This site answers one question in plain English for people who buy or sell advertising: what agentic buying is, how it works, and how much of it is real. It is written by an operator who sells work in the field he writes about.Sun, 09 Aug 2026 00:00:00 GMThttps://whatisagenticbuying.com/maturity/https://whatisagenticbuying.com/maturity/Agentic buying is real in parts. Eight named deployments have transacted since December 2025, most of them on the same protocol, and the most optimistic industry forecast for 2027 agentic ad spend is under a billion dollars. Nothing yet runs end to end unattended.Sun, 09 Aug 2026 00:00:00 GMT