Coinbase Upgrades x402 with ‘Upto’ to Enable Flexible AI Payment Models

TLDR

• Coinbase integrates Upto into x402, allowing for adaptable AI pricing structures
• The protocol now facilitates payments based on actual usage for AI computing jobs
• With Upto, purchasers can establish a maximum budget but are billed for the real expense
• Transactions without gas fees enhance x402’s ease of use and accessibility for developers
• x402 seeks to recover momentum even as its transaction numbers have decreased

(SeaPRwire) –   Coinbase has enhanced the x402 protocol by implementing a new pricing framework designed for adaptable, consumption-based payments for AI services. This enhancement introduces a mechanism that swaps set fees for variable costs linked to real computational usage. This move better equips x402 to handle agentic AI workloads and fluctuating service expenses.

x402 Introduces Upto for Variable AI Pricing

Coinbase has launched the “Upto” feature to increase payment versatility on x402. This enhancement permits services to bill according to genuine resource use instead of flat rates. Consequently, x402 can now accommodate AI operations with variable costs, like inference and data queries.

Previously, x402 needed precise payment amounts prior to execution, constraining its utility in changeable settings. The new framework, however, lets users pre-approve a maximum expenditure limit for each request. The system then deducts only the ultimately determined cost once the task is finished.

This upgrade boosts payment efficiency and minimizes cost discrepancies between different services. Additionally, developers can create applications that match pricing to live compute consumption. This advancement solidifies x402’s role as a payments solution for growing AI-centric ecosystems.

Fixing Flat-Fee Limits in x402 Infrastructure

The prior x402 model mandated identical pricing for straightforward and resource-intensive tasks alike. Users frequently overpaid for elementary operations or underpaid for demanding ones. The new Upto feature eliminates this constraint by matching charges to the true demands of the service.

In the revised system, providers set a ceiling price while customers authorize spending limits. Servers then determine the final charge using metrics such as processing time or token volume. x402 guarantees precise billing and avoids payment inefficiencies for AI services.

The protocol also incorporates gasless transactions via the CDP Facilitator. This capability streamlines the user experience and reduces obstacles to entry. Therefore, x402 turns more viable for extensive AI and data-intensive applications.

x402 Gains Backing Amid Adoption Challenges

The Linux Foundation now manages x402 following its handover from Coinbase. At the same time, leading companies including Google, Microsoft, and Amazon Web Services endorse its development via the x402 Foundation. This support indicates significant industry confidence in infrastructure for agentic commerce.

Even with this endorsement, x402 usage has waned in 2026 after reaching a high in late 2025. Weekly transaction counts fell from millions to under a million at the start of the year. Moreover, activity dwindled to slightly above 100,000 transactions by the end of March.

The Upto enhancement is intended to stimulate renewed growth by broadening applicable scenarios. It allows x402 to cater to high-volume AI settings that need adaptable and rapid payment processing. As a result, the protocol could recover its standing as agentic commerce progresses further.