什麼是HTTP 402，為什麼重要？

網絡並不是真正考慮到付款的真正構建的，尤其是對於自主代理或機器而言。但是隨著AI的興起和分散的

The web was not really built with payments in mind, especially not for autonomous agents or machines. But with the rise of AI and decentralized finance (DeFi), the need for seamless, native digital payments has never been more urgent.

網絡並不是真正考慮到付款的真正構建的，尤其是對於自主代理或機器而言。但是，隨著人工智能和分散融資（DEFI）的興起，對無縫的本地數字支付的需求從未如此緊迫。

Coinbase x402 announced a new open protocol designed to let APIs, apps and AI agents pay instantly using stablecoins like USDC (USDC), all via the familiar HTTP protocol.

Coinbase X402宣布了一項新的開放協議，旨在通過熟悉的HTTP協議，使用USDC（USDC）等Stablecoins立即使用API​​，應用程序和AI代理立即付款。

This isn’t just a product update. X402 revives a long-forgotten piece of internet infrastructure and reimagines it for a future powered by agentic systems and crypto.

這不僅僅是產品更新。 X402恢復了久經考驗的互聯網基礎架構，並將其重新構想為由代理系統和加密貨幣提供支持的未來。

HTTP status codes: A quick refresher

HTTP狀態代碼：快速刷新

Understanding HTTP status codes helps clarify how the web communicates behind the scenes. Here are some key ones to know:

了解HTTP狀態代碼有助於闡明網絡在幕後如何通信。這是一些要知道的關鍵：

HTTP 200 (OK): The standard response for a successful request.

HTTP 200（確定）：成功請求的標準響應。

HTTP 400 (Bad Request): Indicates the request had syntax errors and couldn’t be understood.

HTTP 400（不良請求）：指示請求有語法錯誤，無法理解。

HTTP 401 (Unauthorized): Occurs when a request is made without proper authorization, like a username and password.

http 401（未經授權）：在未經適當授權的情況下提出請求（例如用戶名和密碼）時發生。

HTTP 403 (Forbidden): Signals that the server understands the request but refuses it.

HTTP 403（禁止）：信號表明服務器了解請求，但拒絕了。

HTTP 404 (Not Found): The requested resource couldn’t be located on the server.

HTTP 404（找不到）：所請求的資源無法在服務器上找到。

Among these codes is HTTP 402, "Payment Required."

這些代碼中有http 402，“需要付款”。

Although the creators of the web imagined a future where online services might request payments directly through the protocol, for decades, no one found a practical use for it. It sat dormant for over 25 years, with no widespread adoption or defined behavior.

儘管網絡的創建者想像著一個未來，在線服務可能直接通過協議請求付款，但幾十年來，沒有人找到實際用途。它處於休眠狀態超過25年，沒有廣泛採用或定義的行為。

Today, HTTP 402 is finally coming to life, thanks to Coinbase’s x402 protocol. X402 turns HTTP 402 from a placeholder into a real mechanism. It allows websites, APIs and services to signal that a payment is required before granting access to digital goods or services.

今天，由於Coinbase的X402協議，HTTP 402終於栩栩如生。 X402將HTTP 402從占位持有人轉變為真正的機制。它允許網站，API和服務表明在授予對數字商品或服務的訪問之前，需要付款。

Unlike traditional payment systems, which rely on external redirects or complex integrations, x402 enables native, in-protocol payments using stablecoins directly over HTTP.

與依靠外部重定向或複雜集成的傳統支付系統不同，X402可以直接使用http上的stablecoins啟用本地付費付款。

But why do x402 and the activation of HTTP 402 matter?

但是，為什麼X402和HTTP 402的激活很重要？

With machine-to-machine interactions, autonomous agents and AI-driven services on the rise, the internet needs a payment layer that is:

隨著機器對機器的交互，自動源代理和AI驅動服務的上升，互聯網需要一個付款層，即：

• Atomic: Completing an entire transaction or none at all.

•原子：完成整個交易或根本沒有完成。

• Chain agnostic: Operating across various blockchains.

•鏈不可知論：跨各種區塊鏈運行。

• overflow: auto; padding: 0px; margin: 0px; width: 0px; height: 0px; border: 0px none; max-width: 0px; max-height: 0px; min-width: 0px; min-height: 0px; visibility: hidden; display: none; float: none; clear: none;

•溢出：自動；填充：0px;保證金：0px;寬度：0px;身高：0px;邊界：0px無；最大寬度：0px; Max-Height：0px;最小寬度：0px;最小值：0px;可見性：隱藏；顯示：無；浮點：無；清晰：無；

Activating HTTP 402 positions it as a key enabler for decentralized commerce, autonomous agents and crypto-native applications. It could become as foundational as HTTP 200 or 404 in a future where services charge micro-fees, stream value or sell access dynamically.

激活HTTP 402將其定位為分散商務，自主代理和加密本地應用的關鍵推動力。它可能會像HTTP 200或404一樣成為基礎，在服務中，服務充滿動態收費，流式價值或銷售訪問權限。