Visa and Coinbase Prepare for the Rise of AI-Driven Payments Networks

AI Agents Are Shaping the Future of Payments

Payment infrastructure giants like Visa and industry-leading crypto platforms such as Coinbase are positioning themselves for a seismic shift in the internet’s financial architecture. The emerging landscape is driven by autonomous AI agents carrying out high-frequency, low-value transactions—far outpacing human-driven activity.

Machine-to-Machine Transactions: The Next Trillion-Dollar Network

According to industry leaders, the next trillion-dollar payments network will operate without traditional checkout processes, card numbers, or human intervention. Autonomous AI agents are expected to execute thousands of microtransactions per second for mere fractions of a cent. In this paradigm, crypto wallets and stablecoins take precedence over conventional bank accounts because they bypass time-consuming identity verifications, compliance procedures, and regulatory hurdles.

Both stablecoins and innovative protocols—such as Coinbase’s x402—make ultra-small, high-frequency payments between machines economically viable. Traditional card networks, which impose minimum fees of around $0.30 per transaction, are poorly suited for this type of activity. In contrast, on-chain solutions allow for sub-cent payments, dramatically lowering the cost of machine-to-machine commerce.

The Case for Crypto Wallets Over Traditional Banking

Experts including Coinbase founder Brian Armstrong predict that AI agents will soon outnumber human users in online transaction volume. Binance founder Changpeng Zhao has projected that these agents could eventually facilitate a million times more payments than people, with all transactions settled via cryptocurrency. The reason is structural: banks require identity checks (KYC processes) that AI agents cannot satisfy, whereas crypto wallets need only a private key to operate, requiring no human verification.

Economic Efficiency: The Core Advantage

AI agents operate differently from humans. When an agent completes a task—such as data analysis, supply chain management, or content creation—it might make dozens of API calls in a single workflow. Each interaction is a micropayment worth possibly less than one cent, covering services such as access to GPU computation, live data feeds, or activating sub-agents for specialized roles like translation. These transactions do not fit within the fee frameworks of Visa or Mastercard networks.

A practical illustration: to assemble a single news article, an AI agent may interact with various APIs and models, incurring several fees (e.g., $0.002 for a news API, $0.004 for blockchain data, $0.003 for protocol details). The combined cost remains under two cents with protocols like x402. In contrast, routing these payments through card networks could inflate the total cost to well over $1.80 because of minimum fee requirements—over 100 times the value of the services rendered.

x402 and the Push Toward On-Chain Micropayments

Coinbase’s x402 is an open payment protocol integrating stablecoin settlements directly into HTTP requests. This allows AI agents to seamlessly bypass paywalls, pay in USDC, and resume their activities without human involvement. Major firms including Cloudflare, Circle, AWS, and Stripe are publicly supporting the initiative, with Google also incorporating x402 as a settlement layer in its open agent payments standard.

This technology could transform sectors reliant on microtransactions:

• Healthcare: Agents pay per document retrieved from medical data APIs.
• Logistics: Procurement bots auction freight slots and settle instantly.
• Media: AI crawlers pay per article indexed.
• Finance: Trading agents pay specialist models minute amounts per risk signal.

Early Adoption and Ongoing Development

Adoption, however, is still in the early phases. CoinDesk reported that x402 processes roughly $28,000 in daily volume, with data provider Artemis noting that half of these transactions appear to be artificial rather than genuine commercial activity. The ecosystem of merchants tailored to such payment schemes remains nascent.

Traditional Financial Networks Enter the Fray

Traditional players are responding. Visa has rolled out its Trusted Agent Protocol, while Mastercard recently completed Europe’s first live AI-agent bank payment through Santander’s regulated infrastructure, running atop established card rails and secured with cryptographic verification.

This sets the stage for a likely bifurcation in digital commerce—regulated human transactions persist on established card networks, while machine-driven payments gravitate toward stablecoin-based, on-chain settlements due to overwhelming economic advantages. The overall scale of each segment is yet to be determined.

AI in Prediction Market Trading: Early Use Cases

In prediction markets, autonomous agents are already active, providing retail traders with 24/7, discipline-driven trading strategies. The Olas protocol and its agent, Polystrat, have executed more than 4,200 trades on Polymarket within a month, realizing individual trade returns as high as 376%. The goal for projects like Olas is to foster "agent economies"—ecosystems in which user-owned AI agents autonomously generate value.