{"id":4115,"date":"2025-11-03T11:01:12","date_gmt":"2025-11-03T03:01:12","guid":{"rendered":"https:\/\/theexchain.com\/x402-protocol-analysis-reveals-limitations-proposes-icp-icrc-token-solution-for-machine-to-machine-payments\/"},"modified":"2025-11-03T11:01:12","modified_gmt":"2025-11-03T03:01:12","slug":"x402%e3%83%97%e3%83%ad%e3%83%88%e3%82%b3%e3%83%ab%e3%81%ae%e5%88%86%e6%9e%90%e3%81%a7%e6%98%8e%e3%82%89%e3%81%8b%e3%81%ab%e3%81%aa%e3%81%a3%e3%81%9f%e3%80%81%e3%83%9e%e3%82%b7%e3%83%bc%e3%83%b3","status":"publish","type":"post","link":"https:\/\/theexchain.com\/ja\/x402%e3%83%97%e3%83%ad%e3%83%88%e3%82%b3%e3%83%ab%e3%81%ae%e5%88%86%e6%9e%90%e3%81%a7%e6%98%8e%e3%82%89%e3%81%8b%e3%81%ab%e3%81%aa%e3%81%a3%e3%81%9f%e3%80%81%e3%83%9e%e3%82%b7%e3%83%bc%e3%83%b3\/","title":{"rendered":"x402\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5206\u6790\u3067\u9650\u754c\u304c\u660e\u3089\u304b\u306b\u3001\u30de\u30b7\u30f3\u30fb\u30c4\u30fc\u30fb\u30de\u30b7\u30f3\u6c7a\u6e08\u306e\u305f\u3081\u306eICP ICRC\u30c8\u30fc\u30af\u30f3\u30fb\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u6848"},"content":{"rendered":"<p>AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3068API\u30a8\u30b3\u30ce\u30df\u30fc\u304c\u6025\u901f\u306b\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3001\u30de\u30b7\u30f3\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u6c7a\u6e08\u30a4\u30f3\u30d5\u30e9\u306b\u5bfe\u3059\u308b\u9700\u8981\u304c\u9ad8\u307e\u3063\u3066\u3044\u308b\u30021997\u5e74\u4ee5\u6765\u4e88\u7d04\u3055\u308c\u3066\u3044\u308bHTTP 402 \"Payment Required \"\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306f\u3001x402\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u901a\u3058\u3066\u5b9f\u7528\u7684\u306a\u5b9f\u88c5\u3092\u898b\u51fa\u3057\u305f\u304c\u3001\u73fe\u5728\u306e\u5b9f\u88c5\u3067\u306f\u6700\u9069\u5316\u3092\u5fc5\u8981\u3068\u3059\u308b\u91cd\u5927\u306a\u5236\u9650\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f\u3002x402\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u6c7a\u6e08\u306e\u8a8d\u53ef\u3068\u5b9f\u884c\u3092\u5206\u96e2\u3059\u308b\u9769\u65b0\u7684\u306a\u8a2d\u8a08\u3092\u63a1\u7528\u3057\u3066\u3044\u308b\u3002EIP-3009\u6a19\u6e96\u306b\u3088\u3063\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u8a8d\u8a3c\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u7f72\u540d\u3057\u3001\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306e\u300c\u30d5\u30a1\u30b7\u30ea\u30c6\u30fc\u30bf\u30fc\u300d\u304c\u30aa\u30f3\u30c1\u30a7\u30fc\u30f3\u30fb\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u51e6\u7406\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u3084AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c\u30ac\u30b9\u6599\u91d1\u306e\u305f\u3081\u306b\u30cd\u30a4\u30c6\u30a3\u30d6\u30c8\u30fc\u30af\u30f3\u3092\u4fdd\u6709\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u3001USDC\u306e\u3088\u3046\u306a\u5b89\u5b9a\u30b3\u30a4\u30f3\u306e\u307f\u304c\u5fc5\u8981\u3068\u306a\u308b\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u91cd\u8981\u306a\u4f9d\u5b58\u95a2\u4fc2\u3092\u3082\u305f\u3089\u3059\u3002\u73fe\u5728\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u4e3b\u306bCoinbase\u306e\u3088\u3046\u306a\u4e2d\u592e\u96c6\u6a29\u7684\u306a\u30d5\u30a1\u30b7\u30ea\u30c6\u30fc\u30bf\u30fc\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u3066\u304a\u308a\u3001\u5358\u4e00\u969c\u5bb3\u70b9\u3068\u4fe1\u983c\u8981\u4ef6\u3092\u751f\u307f\u51fa\u3057\u3066\u3044\u308b\u3002EIP-3009\u306e\u4e92\u63db\u6027\u306f\u4f9d\u7136\u3068\u3057\u3066\u9650\u3089\u308c\u3066\u304a\u308a\u3001\u307b\u3068\u3093\u3069\u306eERC-20\u30c8\u30fc\u30af\u30f3\u306f\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u6b20\u3044\u3066\u3044\u308b\u3002\u30ac\u30b9\u30ec\u30b9\u300d\u3068\u3057\u3066\u8ca9\u58f2\u3055\u308c\u3066\u3044\u308b\u304c\u3001\u30b3\u30b9\u30c8\u306f\u6392\u9664\u3055\u308c\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5358\u306b\u518d\u5206\u914d\u3055\u308c\u308b\u3060\u3051\u3067\u3042\u308a\u3001\u30d5\u30a1\u30b7\u30ea\u30c6\u30fc\u30bf\u30fc\u306f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3054\u3068\u306b\u7d04$0.03\u3092\u5438\u53ce\u3057\u3066\u3044\u308b\u3002\u3055\u3089\u306a\u308b\u8ab2\u984c\u3068\u3057\u3066\u3001\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u306e\u78ba\u5b9a\u9045\u5ef6\uff08\u6301\u7d9a\u7684\u306aHTTP\u63a5\u7d9a\u3092\u5fc5\u8981\u3068\u3059\u308b2\uff5e15\u79d2\uff09\u3084\u3001\u30d5\u30a1\u30b7\u30ea\u30c6\u30fc\u30bf\u30fc\u306e\u8aa0\u5b9f\u3055\u3092\u4fe1\u983c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u691c\u8a3c\u306e\u8907\u96d1\u3055\u304c\u6319\u3052\u3089\u308c\u308b\u3002\u5206\u6790\u3067\u306f\u3001\u4ee3\u66ff\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3068\u3057\u3066Internet Computer Protocol\u306eICRC\u30c8\u30fc\u30af\u30f3\u3092\u63d0\u6848\u3057\u3066\u3044\u308b\u3002ICP\u306e\u30ea\u30d0\u30fc\u30b9\u30fb\u30ac\u30b9\u30fb\u30e2\u30c7\u30eb\u306f\u3001\u5b9f\u884c\u30b3\u30b9\u30c8\u3092\u53d7\u4fe1\u30ad\u30e3\u30cb\u30b9\u30bf\u30fc\uff08\u30b9\u30de\u30fc\u30c8\u30fb\u30b3\u30f3\u30c8\u30e9\u30af\u30c8\uff09\u306b\u30b7\u30d5\u30c8\u3057\u3001\u30d5\u30a1\u30b7\u30ea\u30c6\u30fc\u30bf\u30fc\u4f9d\u5b58\u3092\u6392\u9664\u3059\u308b\u3002ICRC\u306e\u9001\u91d1\u306f\u3001\u6c7a\u5b9a\u8ad6\u7684\u306a1\uff5e2\u79d2\u306e\u6c7a\u6e08\u3068\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3042\u305f\u308a\u7d04$0.0001\u306e\u900f\u660e\u306a\u30b3\u30b9\u30c8\u3067\u3001\u30aa\u30f3\u30c1\u30a7\u30fc\u30f3\u3067\u76f4\u63a5\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001300\u500d\u306e\u30b3\u30b9\u30c8\u524a\u6e1b\u30012\uff5e7\u500d\u306e\u30b9\u30d4\u30fc\u30c9\u5411\u4e0a\u3001\u30e2\u30d0\u30a4\u30eb\u3084AI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4fe1\u983c\u6027\u5411\u4e0a\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u65e2\u5b58\u306e\u30a4\u30f3\u30d5\u30e9\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3001\u6c7a\u6e08\u30ec\u30a4\u30e4\u30fc\u3092\u6bb5\u968e\u7684\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u6226\u7565\u3067\u306e\u5c0e\u5165\u3082\u53ef\u80fd\u3067\u3059\u3002\u79fb\u884c\u306b\u306fICP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8SDK\u306e\u7d71\u5408\u3068ICRC\u30c8\u30fc\u30af\u30f3\u306e\u30b5\u30dd\u30fc\u30c8\u304c\u5fc5\u8981\u3060\u304c\u3001\u4e2d\u592e\u96c6\u6a29\u7684\u306a\u4f9d\u5b58\u95a2\u4fc2\u306e\u6392\u9664\u3001\u900f\u660e\u6027\u306e\u9ad8\u3044\u30b3\u30b9\u30c8\u69cb\u9020\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u30b5\u30dd\u30fc\u30c8\u306e\u5411\u4e0a\u306a\u3069\u3001\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u308b\u3002\u53c2\u7167\u3057\u305f\u6280\u8853\u4ed5\u69d8\u306b\u306f\u3001EIP-3009\u6a19\u6e96\u3001ICRC-1\u30d7\u30ed\u30c8\u30b3\u30eb\u3001x402\u6587\u66f8\u3001ICP\u958b\u767a\u8005\u30ea\u30bd\u30fc\u30b9\u304c\u542b\u307e\u308c\u308b\u3002\u6027\u80fd\u30c7\u30fc\u30bf\u306f\u3001\u516c\u958b\u30c6\u30b9\u30c8\u7d50\u679c\u304a\u3088\u3073\u30aa\u30f3\u30c1\u30a7\u30fc\u30f3\u5206\u6790\u306b\u57fa\u3065\u304f\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>As AI Agent and API economies rapidly evolve, the demand for machine-native payment infrastructure has intensified. The HTTP 402 &#8220;Payment Required&#8221; status code, reserved since 1997, has found practical implementation through the x402 protocol, though current implementations reveal significant limitations that require optimization. The x402 protocol employs an innovative design separating payment authorization from execution. Through EIP-3009 standards, users sign authorization messages while third-party &#8220;facilitators&#8221; handle on-chain transactions. This eliminates the need for users or AI Agents to hold native tokens for gas fees, requiring only stablecoins like USDC. However, this approach introduces critical dependencies. The current system relies heavily on centralized facilitators, primarily Coinbase, creating single points of failure [&hellip;]<\/p>","protected":false},"author":1,"featured_media":4114,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-4115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-market-insight"],"_links":{"self":[{"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/posts\/4115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/comments?post=4115"}],"version-history":[{"count":0,"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/posts\/4115\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/media\/4114"}],"wp:attachment":[{"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/media?parent=4115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/categories?post=4115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/theexchain.com\/ja\/wp-json\/wp\/v2\/tags?post=4115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}