x402 Protocol: A New Standard for Agent Payments

x402 Protocol: A New Standard for Agent Payments

The x402 protocol aims to solve the core payment dilemma in the AI ​​Agent economy through blockchain technology, providing an autonomous and low-cost on-chain payment solution for high-frequency, small-amount transactions between AI Agents.

29 articles
In the era of multi-track systems, the boundaries and evolution of cross-border payment PSPs
The Evolution and Dilemma of PSP: Digital payments have become mainstream, but settlement lags behind. How can stablecoins restructure capital efficiency? In-depth analysis of the challenges and future direction of modern payment architecture.
Web3小律
IOSG：AI Agent的支付时刻，谁将成为机器经济的Stripe？
Agent 支付进入基础设施竞赛，x402 30 天跑出 330 万笔交易，Visa 与 Stripe 加速入场，Facilitator 层成为最赚钱生态位。
IOSG
Strip releases 288 updates, fully entering the stablecoin and AI agent economy sectors.
Stripe released 288 product updates, covering smart agent e-commerce, crypto payments, and AI-powered risk control. Stripe partnered with Meta and Google to expand its e-commerce suite, launched the Link agent wallet and stablecoin-linked bank card functionality, upgraded Radar fraud protection, and empowered AI-driven business growth and token asset management.
链捕手 ChainCatcher
Will AI agents use bank cards? Why can't agentic payments bypass stablecoins and blockchain?
AI Agent's payment is not just about "paying money," but a completely new protocol stack.
Stablehunter
Agent经济的基础设施:：Web4.0赛道全景研究
谁在为AIAgent盖房子、发工资、定身份？
北大区块链研究
IOSG: Global Consumer Crypto Survey – Users, Revenue, and Sector Distribution
The crypto industry has no shortage of users; it's just that Western VCs are targeting the wrong market.
IOSG
Thirty Years of Ciphers: The Battle for AI Payment Standards
The HTTP 402 payment status code, dormant for 30 years, has been revived by AI Agents. Coinbase's x402 and Stripe's MPP protocol are engaged in a standards battle for dominance in the trillion-dollar AI autonomous payment market.
支无不言
AI大爆炸之后，Coinbase 的 x402 到底跑得怎么样了
不只是让AI会付款，而是让每一次调用都能顺手把钱结了。
曼昆区块链
Research for 19 cents: The micropayment breakthrough brought about by the x402 protocol
The x402 solves the micro-payment problem for AI agents when performing tasks, ushering in a new era of the Internet that is "without API keys or subscriptions".
Block Unicorn
Old maps are rapidly becoming obsolete: Mastercard's 1.8 billion and the second half of stablecoin payments.
This cannot be calculated using financial logic, because it is a struggle for the "Strait of Hormuz" in the next generation of global payment systems.
Web3 农民 Frank
Everyone's talking about the ultimate fate of Agentic Payments, but the real challenge lies in navigating the middle path.
Agentic payment is moving from concept to reality, with giants like Visa, Google, Stripe, and Coinbase building infrastructure at different levels, including protocols, identity, and wallets. This article delves into its five-stage evolution from "human confirmation" to "automatic machine payment," revealing that API payments and digital subscriptions will be the first to succeed, while the real core hurdle lies in building a reliable machine authorization system.
Stablehunter
Visa vs Coinbase：Agent经济时代，支付互联网谁主沉浮？
当 AI Agents 开始成为经济的主要参与者时，为它们提供怎样的 “货币” 和 “支付网络”，将直接决定未来财富的流向与规则的制定。
Conflux
Detailed Explanation of ERC-8183: Ethereum's Solution to the Challenge of Trust Between AI Agents
In the world of agents, deceit and treachery abound; reputation alone is not enough to conquer the world.
Odaily星球日报
When AI starts paying its own bills: A piece of code that has been dormant for 34 years is igniting the machine economy.
Goodbye, credit cards and API keys.
白话区块链
What are your thoughts on the x402 V2 upgrade?
The rapid rollout of V2 is aimed at addressing the issue of further large-scale deployment of the x402.
链上观
Alpha's opportunities in the x402 track lie hidden in the undercurrent of "micro-innovation".
Alpha must come from areas where the public has not yet discovered its potential, but a few people have already laid the groundwork. The x402 track has this potential.
链上观
x402：从 HTTP 402 到加密原生支付标准，AI Agent 时代的价值交换层
x402 是一种开源协议，可将休眠的 HTTP 状态代码转变为 API、网站和自治代理的功能齐全的链上支付层。
新火科技
The X402 is great, but what are some of the hidden problems?
The x402 v1 demonstrated technical feasibility, and while v2 achieved incremental optimization, it is still a long way from truly meeting the needs.
金色财经
Awakening code that has been dormant for 26 years: Is the x402 protocol a technological singularity or a meme frenzy?
Could this "reactivation" of the underlying Internet protocol standards be the key to bridging the gap between "convenience" and "openness"?
Bitget Wallet
X402协议研究报告：它很好，但还不是万能魔法
HTTP 402 被区块链与 AI 复活，x402 能重塑人与内容的关系，未来可能看不到广告。
Conflux