As artificial intelligence rapidly transforms every sector, payment systems are undergoing a revolutionary shift. The x402 protocol, engineered by the Coinbase team, is taking AI beyond simple conversation, enabling it to autonomously execute transactions.
This open-source protocol revives the long-dormant HTTP status code 402—Payment Required. It integrates this code with blockchain payment systems. When an AI encounters a payment requirement during task execution, x402 starts the payment workflow. AI processes transactions automatically, without manual intervention or traditional API verification. This is a turning point for Web3, as payment logic moves from human-initiated actions to autonomous economic activity managed by intelligent agents.
Coinbase has further launched the Payments MCP (Multi-Chain Payments) system, empowering AI assistants with native wallet, storage, and payment capabilities. In effect:
With the x402 + MCP architecture, AI becomes more than a data processing tool. It transforms into an intelligent agent with economic identity. AI can automatically purchase content, pay for subscriptions, and even initiate on-chain transactions for users. This model unlocks new possibilities for global developers, as the fusion of AI and crypto payments emerges as the next foundation of internet infrastructure.
x402’s success is no coincidence; its driving force comes from the open-source ecosystem of the Base network. Base provides developers with a permissionless environment to issue tokens, build on-chain applications, and seamlessly integrate AI, payments, and DeFi.
According to x402scan:

(Source: x402scan)
These figures show strong market momentum and highlight how developers and communities anticipate AI-driven automated payments.
In this wave of innovation, $PING emerged as the first token issued via the x402 protocol on the Base network. With its launch, AI agents move beyond learning and responding; they now make payments.
From October 23 to 24, 2025, $PING saw rapid growth. Its price increased over 20 times, and its market capitalization briefly exceeded $80 million. It quickly became a leading AI-driven payment token in the Web3 ecosystem, marking the emergence of on-chain automated economies.
$PING is not just a token capitalizing on hype; it represents the first tangible result of AI and blockchain collaboration. Its value is clear in three key areas:
The launch of $PING signals the arrival of a new era—machines are beginning to participate in human economic systems.
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The rise of the x402 protocol and $PING marks not only an evolution in blockchain applications, but also a major milestone in AI’s economic integration. Intelligent agents are now capable of true value exchange, going beyond executing commands.





