Coinbase engineer Erik Reppel warned Wednesday that the rise of AI agents could fundamentally disrupt the internet’s advertising-driven business model.

Reppel, creator of the x402 protocol, noted that the current web economy depends heavily on advertising revenue generated from human users. When AI agents browse the web, search for information, and make purchasing decisions on behalf of users, the traditional ad display and click model becomes irrelevant. “AI agents bypass the entire advertising ecosystem,” he said.

This observation strikes at the core of the internet’s revenue structure. Search engines, social media, and content platforms derive the majority of their income from ads. If an increasing share of web interactions is handled by AI agents, advertisers lose direct contact with consumers.

Reppel suggested this could spur a new web economy based on micropayments between agents. The x402 protocol is designed precisely for this purpose, enabling automated value exchange between AI agents.

Industry observers note the implications are profound. The advertising industry generates over $700 billion annually. Any disruption to its foundational model would reshape the entire internet landscape.

April 30, 2026 — Elon Musk’s social media platform X announced on Thursday that it has begun a phased rollout of a completely rebuilt AI-powered advertising platform. This marks a significant effort by X to win back advertiser trust through technological innovation after years of declining ad revenue.

AI Reshaping Ad Delivery

According to X, the new advertising platform features more modern “retrieval and ranking systems” powered by AI technology. These improvements are designed to help marketers create targeted campaigns with greater control and precision. AI will be used to enhance ad performance, offering more relevant ad placements and more accurate audience targeting.

Monique Pintarelli, head of global advertising at xAI, said in a statement posted on X: “Very few companies would have the ambition and technical courage to completely rebuild their entire advertising platform in such a short timeframe. This is classic X and xAI — bold, fast, and focused on building something substantially better for advertisers. We are designing this new ad stack to enable more rapid and seamless integration of ongoing innovation.”

Ad Revenue Showing Signs of Recovery

In the first few years following Musk’s acquisition of Twitter (now X), the company’s advertising business suffered significant setbacks as many brands pulled their spending over content moderation concerns. X subsequently shifted its focus to other monetization channels, including AI and subscriptions.

However, eMarketer forecasts indicate that X’s ad business has been turning around recently, with estimated ad revenue of $2.26 billion in 2025, rising to $2.46 billion in 2026. While still only about half the size of Twitter’s 2021 ad business, the trajectory is heading in the right direction.

Industry Trends

AI adoption in advertising is becoming an industry-wide consensus. This week’s tech earnings season revealed that companies like Google and Meta are all benefiting from an AI-driven “digital ad boom.” The New York Times reported this week that AI systems have automated various aspects of marketing — from ad creation to targeting to measurement — while also lowering the barrier for smaller businesses to access advanced advertising tools.

Rebuilding the ad platform became a priority after X merged with xAI last year, with AI integration viewed as a key growth driver.

Source: TechCrunch