TLDR: Coingecko has officially introduced a new ‘x402’ token category, reflecting the rapid growth of tokens built on Coinbase’s x402 protocol. This innovative protocol facilitates instant, fee-free micropayments, particularly for AI agents and machine-to-machine transactions, with the newly categorized tokens boasting a combined market capitalization of $178.3 million.
On October 25, 2025, the cryptocurrency data aggregator Coingecko announced the addition of a new token category specifically for ‘x402’ tokens, signaling a significant milestone in the burgeoning field of AI-driven micropayments. This move comes as the x402 protocol, developed by Coinbase, rapidly gains traction for its ability to enable seamless, web-native transactions.
The x402 protocol is an open-source, HTTP-native payment system that re-activates the long-dormant HTTP 402 ‘Payment Required’ status code. Its core function is to allow websites, APIs, and crucially, artificial intelligence (AI) agents to directly request and process payments through standard web requests. Unlike traditional API keys or monthly subscriptions, x402 facilitates instant micropayments, often in USDC, directly within the browser environment. These transactions are notable for their speed, settling in approximately two seconds, and their efficiency, operating with zero protocol fees and no intermediaries.
The underlying infrastructure of x402 is robust, supported by the x402 Foundation, which was co-founded by industry giants Coinbase and Cloudflare in October 2025. The system has already established integrations with major networks and platforms including Google, Visa, AWS, Circle, and Anthropic. Furthermore, its chain-agnostic design allows it to operate across various blockchain networks such as Base, Solana, Polygon, and Sei, positioning it as a pivotal technology in the emerging ‘agentic economy’ driven by machine-to-machine (M2M) payments.
According to Coingecko’s figures on the day of the announcement, the newly established x402 category lists ten tokens with a combined market capitalization of $178.3 million and a 24-hour trading volume of $107.6 million. While the x402 protocol itself does not issue tokens, numerous crypto projects have developed their own utility or governance tokens around its framework. These tokens are primarily designed to facilitate payments, agent coordination, analytics, and AI integration within the x402 ecosystem.
Examples of projects leveraging x402 tokens include PING, which focuses on AI agent payments; KARUM, designed to manage trust and reputation for autonomous agents across blockchains; OBI and DREAMS, exploring applications in generative AI content and gaming; and PAYAI, which aims to create agent marketplaces where AI entities can autonomously hire or pay each other for services. The growing interest is also evident in the broader crypto ecosystem, with Binance and OKX wallets now categorizing x402 tokens for easier discovery. Reports also suggest that Coinbase is actively covering some transaction fees to accelerate the protocol’s adoption.
Also Read:
- Coinbase’s AI-Powered x402 Transactions Skyrocket Over 10,000% Amid Growing Machine-to-Machine Economy
- Kite AI Adopts Coinbase’s X402 Standard for Autonomous AI Agent Payments
This development underscores a significant trend where AI and blockchain utility converge with real-world payment infrastructure, enabling autonomous AI agents to communicate and transact seamlessly using stablecoins like USDC. The rapid growth and institutional backing suggest that x402 and its associated tokens are poised to play a crucial role in the future of digital micropayments and the expanding agentic economy.
