{
 "title": "x402 付費 API 的呼叫流程是什麼？",
 "site": "AI 與科技名詞白話解釋",
 "canonical": "https://tw-ai-glossary.panda198271.workers.dev/howto/x402-payment-flow",
 "markdown": "https://tw-ai-glossary.panda198271.workers.dev/howto/x402-payment-flow.md",
 "summary": "x402 利用 HTTP 402 狀態碼付款：客戶端先請求資源，伺服器回 402 並在 PAYMENT-REQUIRED 標頭說明付款條件；客戶端簽署付款後帶 PAYMENT-SIGNATURE 標頭（v1 為 X-PAYMENT）重送，伺服器驗證結算後回傳資料。",
 "date_modified": "2026-09-26",
 "retrieved": "2026-09-27",
 "content_sha256": "392dc4c61b9d4c9dc8a8a7f1bb66064d26d6c36f706cd4fea08e085c5bb25881",
 "fingerprint_basis": "Markdown 版全文，移除贊助行與開頭 front matter，去除頭尾空白",
 "verify": {
  "text_snapshot": "https://tw-ai-glossary.panda198271.workers.dev/cite?path=%2Fhowto%2Fx402-payment-flow&format=text",
  "how": "下載 text_snapshot 後計算 SHA-256，應與 content_sha256 相同；內容更新時指紋會改變"
 },
 "sources": [
  {
   "name": "x402 Docs：HTTP 402",
   "url": "https://docs.x402.org/core-concepts/http-402"
  },
  {
   "name": "x402 Docs：Migration Guide V1 to V2",
   "url": "https://docs.x402.org/guides/migration-v1-to-v2"
  },
  {
   "name": "x402 Docs：Facilitator",
   "url": "https://docs.x402.org/core-concepts/facilitator"
  }
 ],
 "source_count": 3,
 "cite_as": {
  "zh": "x402 付費 API 的呼叫流程是什麼？｜AI 與科技名詞白話解釋。https://tw-ai-glossary.panda198271.workers.dev/howto/x402-payment-flow（資料日期 2026-09-26，擷取 2026-09-27）",
  "apa": "AI 與科技名詞白話解釋. (2026). x402 付費 API 的呼叫流程是什麼？. Retrieved 2026-09-27, from https://tw-ai-glossary.panda198271.workers.dev/howto/x402-payment-flow",
  "markdown": "[x402 付費 API 的呼叫流程是什麼？](https://tw-ai-glossary.panda198271.workers.dev/howto/x402-payment-flow)（AI 與科技名詞白話解釋，2026-09-26）"
 },
 "license": "可引用，請附上正式網址與資料日期"
}