{"id":2621,"date":"2025-12-28T00:00:40","date_gmt":"2025-12-27T17:00:40","guid":{"rendered":"https:\/\/technest.com.vn\/?p=2621"},"modified":"2025-12-23T14:00:52","modified_gmt":"2025-12-23T07:00:52","slug":"api-blockchain","status":"publish","type":"post","link":"https:\/\/technest.com.vn\/vi\/api-blockchain\/","title":{"rendered":"API Blockchain l\u00e0 g\u00ec? L\u1ee3i \u00edch cho ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Trong k\u1ef7 nguy\u00ean s\u1ed1, <\/span><b>Blockchain<\/b><span style=\"font-weight: 400;\"> \u0111\u00e3 n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng mang t\u00ednh c\u00e1ch m\u1ea1ng, h\u1ee9a h\u1eb9n v\u1ec1 m\u1ed9t t\u01b0\u01a1ng lai minh b\u1ea1ch, phi t\u1eadp trung v\u00e0 b\u1ea3o m\u1eadt h\u01a1n. Tuy nhi\u00ean, vi\u1ec7c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi c\u00e1c s\u1ed5 c\u00e1i ph\u00e2n t\u00e1n (distributed ledgers) n\u00e0y c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n k\u00e9m t\u00e0i nguy\u00ean. \u0110\u00e2y ch\u00ednh l\u00e0 l\u00fac <\/span><a title=\"API Blockchain\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/\"><b>API Blockchain<\/b><\/a><span style=\"font-weight: 400;\"> b\u01b0\u1edbc v\u00e0o, \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ea7u n\u1ed1i thi\u1ebft y\u1ebfu, gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p c\u00e1c t\u00ednh n\u0103ng c\u1ee7a c\u00f4ng ngh\u1ec7 Blockchain v\u00e0o c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7n c\u00f3 ho\u1eb7c x\u00e2y d\u1ef1ng c\u00e1c gi\u1ea3i ph\u00e1p ho\u00e0n to\u00e0n m\u1edbi. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u API Blockchain, c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn, c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p ph\u00f9 h\u1ee3p.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#API_Blockchain_la_gi_va_loi_ich_cua_no\" >API Blockchain l\u00e0 g\u00ec v\u00e0 l\u1ee3i \u00edch c\u1ee7a n\u00f3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Cac_API_Blockchain_pho_bien_de_phat_trien_ung_dung\" >C\u00e1c API Blockchain ph\u1ed5 bi\u1ebfn \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#BlockCypher_API\" >BlockCypher API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Chain_API\" >Chain API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#CoinBase_API\" >CoinBase API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Crypto_API\" >Crypto API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Blockchain_API\" >Blockchain API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Blockio_API\" >Block.io API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#BitPay_API\" >BitPay API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#GetBlock_API\" >GetBlock API<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Nhung_yeu_to_can_luu_y_khi_chon_API_Blockchain\" >Nh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd khi ch\u1ecdn API Blockchain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Cach_su_dung_API_Blockchain_trong_ung_dung\" >C\u00e1ch s\u1eed d\u1ee5ng API Blockchain trong \u1ee9ng d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Giam_sat_va_phan_tich_API_Blockchain\" >Gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch API Blockchain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/technest.com.vn\/vi\/api-blockchain\/#Tieu_chi_chon_nha_cung_cap_API_Blockchain_phu_hop\" >Ti\u00eau ch\u00ed ch\u1ecdn nh\u00e0 cung c\u1ea5p API Blockchain ph\u00f9 h\u1ee3p<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"API_Blockchain_la_gi_va_loi_ich_cua_no\"><\/span><b>API Blockchain l\u00e0 g\u00ec v\u00e0 l\u1ee3i \u00edch c\u1ee7a n\u00f3<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">API Blockchain, v\u1ec1 c\u01a1 b\u1ea3n, l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c giao th\u1ee9c v\u00e0 c\u00f4ng c\u1ee5 gi\u00fap c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ea7n m\u1ec1m giao ti\u1ebfp v\u1edbi m\u1ea1ng l\u01b0\u1edbi Blockchain. Thay v\u00ec ph\u1ea3i t\u1ef1 m\u00ecnh ch\u1ea1y m\u1ed9t node \u0111\u1ea7y \u0111\u1ee7 (full node) ho\u1eb7c x\u1eed l\u00fd c\u00e1c quy tr\u00ecnh ph\u1ee9c t\u1ea1p nh\u01b0 m\u00e3 h\u00f3a, k\u00fd giao d\u1ecbch v\u00e0 theo d\u00f5i tr\u1ea1ng th\u00e1i chu\u1ed7i kh\u1ed1i, nh\u00e0 ph\u00e1t tri\u1ec3n ch\u1ec9 c\u1ea7n g\u1eedi c\u00e1c y\u00eau c\u1ea7u \u0111\u01a1n gi\u1ea3n th\u00f4ng qua API.<\/span><\/p>\n<figure id=\"attachment_2631\" aria-describedby=\"caption-attachment-2631\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2631 size-full\" title=\"API Blockchain l\u00e0 g\u00ec?\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-1.webp\" alt=\"API Blockchain l\u00e0 g\u00ec?\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-1.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-1-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2631\" class=\"wp-caption-text\">API Blockchain l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">\u0110i\u1ec1u n\u00e0y mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch to l\u1edbn:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u0103ng t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n:<\/b><span style=\"font-weight: 400;\"> API cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng s\u1eb5n, gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u00edch h\u1ee3p c\u00e1c t\u00ednh n\u0103ng Blockchain, cho ph\u00e9p \u0111\u1ed9i ng\u0169 t\u1eadp trung v\u00e0o logic kinh doanh c\u1ed1t l\u00f5i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110\u01a1n gi\u1ea3n h\u00f3a s\u1ef1 ph\u1ee9c t\u1ea1p:<\/b><span style=\"font-weight: 400;\"> N\u00f3 tr\u1eebu t\u01b0\u1ee3ng h\u00f3a s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a vi\u1ec7c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi giao th\u1ee9c Blockchain (nh\u01b0 x\u1eed l\u00fd nonce, gas limits, hay c\u1ea5u tr\u00fac Merkle Tree), gi\u00fap ngay c\u1ea3 nh\u1eefng l\u1eadp tr\u00ecnh vi\u00ean \u00edt kinh nghi\u1ec7m v\u1ec1 Blockchain c\u0169ng c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ti\u1ebft ki\u1ec7m chi ph\u00ed:<\/b><span style=\"font-weight: 400;\"> Kh\u00f4ng c\u1ea7n duy tr\u00ec v\u00e0 qu\u1ea3n l\u00fd c\u00e1c node Blockchain ri\u00eang, gi\u00fap gi\u1ea3m chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u00e0 v\u1eadn h\u00e0nh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng (Scalability):<\/b><span style=\"font-weight: 400;\"> C\u00e1c nh\u00e0 cung c\u1ea5p API h\u00e0ng \u0111\u1ea7u th\u01b0\u1eddng \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng x\u1eed l\u00fd l\u01b0\u1ee3ng l\u1edbn y\u00eau c\u1ea7u, gi\u00fap \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n m\u1edf r\u1ed9ng d\u1ec5 d\u00e0ng h\u01a1n theo nhu c\u1ea7u ng\u01b0\u1eddi d\u00f9ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110a Chu\u1ed7i (Multi-Chain Support):<\/b><span style=\"font-weight: 400;\"> Nhi\u1ec1u API cung c\u1ea5p kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c v\u1edbi nhi\u1ec1u Blockchain kh\u00e1c nhau (Bitcoin, Ethereum, Polkadot, v.v.) th\u00f4ng qua m\u1ed9t giao di\u1ec7n th\u1ed1ng nh\u1ea5t.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cac_API_Blockchain_pho_bien_de_phat_trien_ung_dung\"><\/span><b>C\u00e1c API Blockchain ph\u1ed5 bi\u1ebfn \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Th\u1ecb tr\u01b0\u1eddng API Blockchain r\u1ea5t \u0111a d\u1ea1ng, v\u1edbi nhi\u1ec1u nh\u00e0 cung c\u1ea5p nh\u1eafm \u0111\u1ebfn c\u00e1c nhu c\u1ea7u kh\u00e1c nhau, t\u1eeb truy v\u1ea5n d\u1eef li\u1ec7u \u0111\u01a1n thu\u1ea7n \u0111\u1ebfn x\u00e2y d\u1ef1ng v\u00ed \u0111i\u1ec7n t\u1eed v\u00e0 qu\u1ea3n l\u00fd h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c t\u00f9y ch\u1ecdn n\u00e0y s\u1ebd gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang c\u00f4ng c\u1ee5 cho d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 API sau \u0111\u1ec3 truy c\u1eadp d\u1eef li\u1ec7u chu\u1ed7i kh\u1ed1i, g\u1eedi giao d\u1ecbch, qu\u1ea3n l\u00fd \u0111\u1ecba ch\u1ec9 v\u00e0 v\u00ed, ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c \u1ee9ng d\u1ee5ng t\u00e0i ch\u00ednh phi t\u1eadp trung (DeFi) v\u00e0 NFT.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"BlockCypher_API\"><\/span><b>BlockCypher API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">BlockCypher l\u00e0 m\u1ed9t b\u1ed9 API m\u1ea1nh m\u1ebd, chuy\u00ean cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 n\u1ec1n t\u1ea3ng cho nhi\u1ec1u m\u1ea1ng Blockchain kh\u00e1c nhau, bao g\u1ed3m <strong>Bitcoin, Ethereum, <a title=\"Litecoin\" href=\"https:\/\/vi.wikipedia.org\/wiki\/Litecoin\" target=\"_blank\" rel=\"nofollow noopener\">Litecoin<\/a>, Dogecoin, v\u00e0 Dash<\/strong>. API n\u00e0y n\u1ed5i b\u1eadt v\u1edbi kh\u1ea3 n\u0103ng x\u1eed l\u00fd giao d\u1ecbch ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn (unconfirmed transactions) v\u00e0 cung c\u1ea5p c\u00e1c webhook \u0111\u1ec3 th\u00f4ng b\u00e1o theo th\u1eddi gian th\u1ef1c v\u1ec1 c\u00e1c s\u1ef1 ki\u1ec7n tr\u00ean chu\u1ed7i (v\u00ed d\u1ee5: khi m\u1ed9t \u0111\u1ecba ch\u1ec9 nh\u1eadn \u0111\u01b0\u1ee3c ti\u1ec1n).\u00a0<\/span><\/p>\n<figure id=\"attachment_2632\" aria-describedby=\"caption-attachment-2632\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2632 size-full\" title=\"BlockCypher API\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-2.webp\" alt=\"BlockCypher API\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-2.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-2-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2632\" class=\"wp-caption-text\">BlockCypher API<\/figcaption><\/figure>\n<p><b>BlockCypher API<\/b><span style=\"font-weight: 400;\"> th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00ed \u0111i\u1ec7n t\u1eed v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 y\u00eau c\u1ea7u x\u00e1c nh\u1eadn giao d\u1ecbch nhanh ch\u00f3ng tin d\u00f9ng. N\u00f3 cung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ec3 d\u1ec5 d\u00e0ng t\u1ea1o \u0111\u1ecba ch\u1ec9, g\u1eedi giao d\u1ecbch v\u00e0 truy xu\u1ea5t th\u00f4ng tin chu\u1ed7i kh\u1ed1i chuy\u00ean s\u00e2u.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chain_API\"><\/span><b>Chain API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Chain API, \u0111\u00f4i khi c\u00f2n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn qua c\u00e1c d\u1ecbch v\u1ee5 cung c\u1ea5p d\u1eef li\u1ec7u c\u01a1 b\u1ea3n c\u1ee7a c\u00e1c chu\u1ed7i kh\u1ed1i, cung c\u1ea5p m\u1ed9t giao di\u1ec7n \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng \u0111\u1ec3 truy c\u1eadp d\u1eef li\u1ec7u. API n\u00e0y th\u01b0\u1eddng t\u1eadp trung v\u00e0o kh\u1ea3 n\u0103ng cung c\u1ea5p d\u1eef li\u1ec7u l\u1ecbch s\u1eed v\u00e0 tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a m\u1ea1ng, gi\u00fap c\u00e1c \u1ee9ng d\u1ee5ng theo d\u00f5i s\u1ed1 d\u01b0, chi ti\u1ebft giao d\u1ecbch v\u00e0 tr\u1ea1ng th\u00e1i kh\u1ed1i.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ee9c t\u1ea1p nh\u01b0 m\u1ed9t s\u1ed1 \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh, <\/span><b>Chain API<\/b><span style=\"font-weight: 400;\"> v\u1eabn l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady cho c\u00e1c t\u00e1c v\u1ee5 truy v\u1ea5n d\u1eef li\u1ec7u c\u01a1 b\u1ea3n.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"CoinBase_API\"><\/span><b>CoinBase API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Coinbase, m\u1ed9t trong nh\u1eefng s\u00e0n giao d\u1ecbch ti\u1ec1n \u0111i\u1ec7n t\u1eed l\u1edbn nh\u1ea5t v\u00e0 uy t\u00edn nh\u1ea5t th\u1ebf gi\u1edbi, cung c\u1ea5p m\u1ed9t b\u1ed9 API to\u00e0n di\u1ec7n cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n. <\/span><b>CoinBase API<\/b><span style=\"font-weight: 400;\"> kh\u00f4ng ch\u1ec9 cho ph\u00e9p truy c\u1eadp v\u00e0o d\u1eef li\u1ec7u th\u1ecb tr\u01b0\u1eddng (gi\u00e1, s\u1ed5 l\u1ec7nh) m\u00e0 c\u00f2n cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng \u0111\u1ec3 qu\u1ea3n l\u00fd t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng, mua\/b\u00e1n ti\u1ec1n \u0111i\u1ec7n t\u1eed v\u00e0 t\u1ea1o c\u00e1c \u1ee9ng d\u1ee5ng thanh to\u00e1n.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">API n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c d\u1ef1 \u00e1n mu\u1ed1n t\u00edch h\u1ee3p d\u1ecbch v\u1ee5 ti\u1ec1n \u0111i\u1ec7n t\u1eed tr\u1ef1c ti\u1ebfp v\u00e0o m\u00f4 h\u00ecnh kinh doanh truy\u1ec1n th\u1ed1ng ho\u1eb7c t\u1ea1o ra c\u00e1c gi\u1ea3i ph\u00e1p giao d\u1ecbch d\u1ef1a tr\u00ean n\u1ec1n t\u1ea3ng \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng c\u1ee7a Coinbase.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Crypto_API\"><\/span><b>Crypto API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">&#8220;Crypto API&#8221; l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef kh\u00e1 chung chung, nh\u01b0ng th\u01b0\u1eddng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c d\u1ecbch v\u1ee5 t\u1ed5ng h\u1ee3p chuy\u00ean cung c\u1ea5p d\u1eef li\u1ec7u th\u1ecb tr\u01b0\u1eddng v\u00e0 th\u00f4ng tin ti\u1ec1n \u0111i\u1ec7n t\u1eed t\u1eeb nhi\u1ec1u s\u00e0n giao d\u1ecbch kh\u00e1c nhau.\u00a0<\/span><\/p>\n<figure id=\"attachment_2633\" aria-describedby=\"caption-attachment-2633\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2633 size-full\" title=\"Crypto API\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-3.webp\" alt=\"Crypto API\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-3.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-3-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2633\" class=\"wp-caption-text\">Crypto API<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">C\u00e1c API ti\u00eau bi\u1ec3u trong nh\u00f3m n\u00e0y (nh\u01b0 CoinMarketCap API, CoinGecko API) cho ph\u00e9p truy v\u1ea5n gi\u00e1 c\u1ea3, v\u1ed1n h\u00f3a th\u1ecb tr\u01b0\u1eddng, kh\u1ed1i l\u01b0\u1ee3ng giao d\u1ecbch v\u00e0 bi\u1ec3u \u0111\u1ed3 l\u1ecbch s\u1eed. <\/span><b>Crypto API<\/b><span style=\"font-weight: 400;\"> l\u00e0 c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu cho c\u00e1c \u1ee9ng d\u1ee5ng theo d\u00f5i danh m\u1ee5c \u0111\u1ea7u t\u01b0, c\u00e1c trang web tin t\u1ee9c t\u00e0i ch\u00ednh v\u00e0 c\u00e1c thu\u1eadt to\u00e1n giao d\u1ecbch.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Blockchain_API\"><\/span><b>Blockchain API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">T\u01b0\u01a1ng t\u1ef1, &#8220;Blockchain API&#8221; th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ec9 API c\u1ee7a Blockchain.com, m\u1ed9t trong nh\u1eefng nh\u00e0 cung c\u1ea5p v\u00ed v\u00e0 d\u1eef li\u1ec7u Bitcoin\/Ethereum l\u00e2u \u0111\u1eddi nh\u1ea5t. <\/span><b>Blockchain API<\/b><span style=\"font-weight: 400;\"> cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 c\u1ed1t l\u00f5i nh\u01b0 truy v\u1ea5n d\u1eef li\u1ec7u chu\u1ed7i kh\u1ed1i (kh\u1ed1i, giao d\u1ecbch, \u0111\u1ecba ch\u1ec9) v\u00e0 kh\u1ea3 n\u0103ng t\u1ea1o, k\u00fd, g\u1eedi giao d\u1ecbch.\u00a0<\/span><\/p>\n<figure id=\"attachment_2634\" aria-describedby=\"caption-attachment-2634\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2634 size-full\" title=\"Blockchain API\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-4.webp\" alt=\"Blockchain API\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-4.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-4-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2634\" class=\"wp-caption-text\">Blockchain API<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">V\u1edbi l\u1ecbch s\u1eed ho\u1ea1t \u0111\u1ed9ng l\u00e2u n\u0103m v\u00e0 \u0111\u1ed9 tin c\u1eady cao, API c\u1ee7a Blockchain.com l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c d\u1ecbch v\u1ee5 v\u00ed \u0111i\u1ec7n t\u1eed v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n truy c\u1eadp tr\u1ef1c ti\u1ebfp, \u0111\u00e1ng tin c\u1eady v\u00e0o c\u00e1c chu\u1ed7i kh\u1ed1i l\u1edbn.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Blockio_API\"><\/span><b>Block.io API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Block.io l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng d\u1ecbch v\u1ee5 v\u00ed v\u00e0 thanh to\u00e1n \u0111a ti\u1ec1n t\u1ec7, cung c\u1ea5p m\u1ed9t API d\u1ec5 s\u1eed d\u1ee5ng cho Bitcoin, Dogecoin v\u00e0 Litecoin. \u0110i\u1ec3m m\u1ea1nh c\u1ee7a <\/span><b>Block.io API<\/b><span style=\"font-weight: 400;\"> l\u00e0 kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd v\u00ed v\u00e0 thanh to\u00e1n theo c\u00e1ch t\u1eadp trung h\u00f3a (custodial), gi\u1ea3m thi\u1ec3u g\u00e1nh n\u1eb7ng qu\u1ea3n l\u00fd kh\u00f3a c\u00e1 nh\u00e2n cho ng\u01b0\u1eddi d\u00f9ng \u1ee9ng d\u1ee5ng.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">N\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c d\u1ecbch v\u1ee5 th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed mu\u1ed1n t\u00edch h\u1ee3p c\u1ed5ng thanh to\u00e1n ti\u1ec1n \u0111i\u1ec7n t\u1eed nhanh ch\u00f3ng v\u00e0 an to\u00e0n.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"BitPay_API\"><\/span><b>BitPay API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">BitPay chuy\u00ean v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p thanh to\u00e1n ti\u1ec1n \u0111i\u1ec7n t\u1eed cho doanh nghi\u1ec7p. <\/span><b>BitPay API<\/b><span style=\"font-weight: 400;\"> cho ph\u00e9p c\u00e1c nh\u00e0 b\u00e1n l\u1ebb v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn d\u1ec5 d\u00e0ng ch\u1ea5p nh\u1eadn Bitcoin v\u00e0 c\u00e1c lo\u1ea1i ti\u1ec1n \u0111i\u1ec7n t\u1eed kh\u00e1c. API n\u00e0y cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng \u0111\u1ec3 t\u1ea1o h\u00f3a \u0111\u01a1n, x\u1eed l\u00fd thanh to\u00e1n v\u00e0 chuy\u1ec3n \u0111\u1ed5i ti\u1ec1n t\u1ec7 ngay l\u1eadp t\u1ee9c.\u00a0<\/span><\/p>\n<figure id=\"attachment_2635\" aria-describedby=\"caption-attachment-2635\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2635 size-full\" title=\"BitPay API\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-5.webp\" alt=\"BitPay API\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-5.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-5-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2635\" class=\"wp-caption-text\">BitPay API<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">N\u00f3 l\u00e0 x\u01b0\u01a1ng s\u1ed1ng cho c\u00e1c h\u1ec7 th\u1ed1ng thanh to\u00e1n c\u1ea7n t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch gi\u1eefa ti\u1ec1n \u0111i\u1ec7n t\u1eed v\u00e0 ti\u1ec1n ph\u00e1p \u0111\u1ecbnh.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"GetBlock_API\"><\/span><b>GetBlock API<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">GetBlock l\u00e0 m\u1ed9t d\u1ecbch v\u1ee5 cung c\u1ea5p quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c node <\/span><b>API Blockchain<\/b><span style=\"font-weight: 400;\"> cho h\u00e0ng ch\u1ee5c chu\u1ed7i kh\u1ed1i kh\u00e1c nhau (Ethereum, Binance Smart Chain, Polygon, v.v.). Thay v\u00ec t\u1eadp trung v\u00e0o c\u00e1c d\u1ecbch v\u1ee5 v\u00ed ho\u1eb7c d\u1eef li\u1ec7u th\u1ecb tr\u01b0\u1eddng, GetBlock cung c\u1ea5p kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi c\u00e1c node RPC (Remote Procedure Call) c\u1ee7a chu\u1ed7i kh\u1ed1i.\u00a0<\/span><\/p>\n<figure id=\"attachment_2636\" aria-describedby=\"caption-attachment-2636\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2636 size-full\" title=\"GetBlock API\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-6.webp\" alt=\"GetBlock API\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-6.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-6-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2636\" class=\"wp-caption-text\">GetBlock API<\/figcaption><\/figure>\n<p><b>GetBlock API<\/b><span style=\"font-weight: 400;\"> r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n DApp ph\u1ee9c t\u1ea1p, nh\u1eefng ng\u01b0\u1eddi c\u1ea7n t\u01b0\u01a1ng t\u00e1c c\u1ea5p \u0111\u1ed9 th\u1ea5p v\u1edbi h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, ki\u1ec3m tra tr\u1ea1ng th\u00e1i m\u1ea1ng v\u00e0 g\u1eedi c\u00e1c giao d\u1ecbch t\u00f9y ch\u1ec9nh.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nhung_yeu_to_can_luu_y_khi_chon_API_Blockchain\"><\/span><b>Nh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd khi ch\u1ecdn API Blockchain<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vi\u1ec7c l\u1ef1a ch\u1ecdn API ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 th\u00e0nh c\u00f4ng v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u1ee7a d\u1ef1 \u00e1n. Nh\u00e0 ph\u00e1t tri\u1ec3n n\u00ean xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 sau:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Lo\u1ea1i Blockchain \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3:<\/b><span style=\"font-weight: 400;\"> \u0110\u1ea3m b\u1ea3o API h\u1ed7 tr\u1ee3 chu\u1ed7i kh\u1ed1i (v\u00ed d\u1ee5: Ethereum, Solana, Binance Smart Chain) m\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n c\u1ea7n. H\u1ed7 tr\u1ee3 \u0111a chu\u1ed7i l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf l\u1edbn.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110\u1ed9 tin c\u1eady v\u00e0 Th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng (Uptime):<\/b><span style=\"font-weight: 400;\"> API ph\u1ea3i c\u00f3 th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng cao (g\u1ea7n 100%) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n lu\u00f4n s\u1eb5n s\u00e0ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u1ea3o m\u1eadt:<\/b><span style=\"font-weight: 400;\"> \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 h\u00e0ng \u0111\u1ea7u. API ph\u1ea3i cung c\u1ea5p c\u00e1c c\u01a1 ch\u1ebf b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd (v\u00ed d\u1ee5: kh\u00f3a API, m\u00e3 h\u00f3a, x\u1eed l\u00fd kh\u00f3a ri\u00eang t\u01b0 an to\u00e0n) \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u v\u00e0 t\u00e0i s\u1ea3n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 Gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 (Rate Limiting):<\/b><span style=\"font-weight: 400;\"> Ki\u1ec3m tra kh\u1ea3 n\u0103ng x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng giao d\u1ecbch v\u00e0 truy v\u1ea5n c\u1ee7a API. Gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 truy c\u1eadp c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng khi t\u0103ng tr\u01b0\u1edfng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u00e0i li\u1ec7u v\u00e0 H\u1ed7 tr\u1ee3:<\/b><span style=\"font-weight: 400;\"> T\u00e0i li\u1ec7u r\u00f5 r\u00e0ng, \u0111\u1ea7y \u0111\u1ee7 v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt nhanh ch\u00f3ng l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft khi g\u1eb7p s\u1ef1 c\u1ed1.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cach_su_dung_API_Blockchain_trong_ung_dung\"><\/span><b>C\u00e1ch s\u1eed d\u1ee5ng API Blockchain trong \u1ee9ng d\u1ee5ng<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng API Blockchain th\u01b0\u1eddng tu\u00e2n theo m\u1ed9t quy tr\u00ecnh chu\u1ea9n.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110\u0103ng k\u00fd v\u00e0 L\u1ea5y Kh\u00f3a API:<\/b><span style=\"font-weight: 400;\"> Nh\u00e0 ph\u00e1t tri\u1ec3n \u0111\u0103ng k\u00fd v\u1edbi nh\u00e0 cung c\u1ea5p v\u00e0 nh\u1eadn Kh\u00f3a API (API Key) \u0111\u1ec3 x\u00e1c th\u1ef1c c\u00e1c y\u00eau c\u1ea7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>G\u1eedi Y\u00eau c\u1ea7u (Request):<\/b><span style=\"font-weight: 400;\"> \u1ee8ng d\u1ee5ng g\u1eedi y\u00eau c\u1ea7u HTTP (th\u01b0\u1eddng l\u00e0 POST ho\u1eb7c GET) \u0111\u1ebfn endpoint c\u1ee7a API, k\u00e8m theo Kh\u00f3a API v\u00e0 c\u00e1c tham s\u1ed1 c\u1ea7n thi\u1ebft (v\u00ed d\u1ee5: \u0111\u1ecba ch\u1ec9 v\u00ed, s\u1ed1 ti\u1ec1n g\u1eedi, d\u1eef li\u1ec7u h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh).<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><i><span style=\"font-weight: 400;\">V\u00ed d\u1ee5: G\u1eedi y\u00eau c\u1ea7u GET \u0111\u1ec3 truy v\u1ea5n s\u1ed1 d\u01b0 c\u1ee7a m\u1ed9t \u0111\u1ecba ch\u1ec9 v\u00ed.<\/span><\/i><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u1eed l\u00fd Ph\u1ea3n h\u1ed3i (Response):<\/b><span style=\"font-weight: 400;\"> API x\u1eed l\u00fd y\u00eau c\u1ea7u b\u1eb1ng c\u00e1ch t\u01b0\u01a1ng t\u00e1c v\u1edbi Blockchain v\u00e0 tr\u1ea3 v\u1ec1 d\u1eef li\u1ec7u d\u01b0\u1edbi \u0111\u1ecbnh d\u1ea1ng chu\u1ea9n (th\u01b0\u1eddng l\u00e0 JSON).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u00edch h\u1ee3p v\u00e0o \u1ee8ng d\u1ee5ng:<\/b><span style=\"font-weight: 400;\"> \u1ee8ng d\u1ee5ng nh\u1eadn v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u ph\u1ea3n h\u1ed3i, sau \u0111\u00f3 hi\u1ec3n th\u1ecb cho ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n logic nghi\u1ec7p v\u1ee5 ti\u1ebfp theo.<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><i><span style=\"font-weight: 400;\">V\u00ed d\u1ee5: Nh\u1eadn s\u1ed1 d\u01b0, chuy\u1ec3n \u0111\u1ed5i sang ti\u1ec1n t\u1ec7 fiat v\u00e0 hi\u1ec3n th\u1ecb l\u00ean giao di\u1ec7n.<\/span><\/i><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed1i v\u1edbi c\u00e1c giao d\u1ecbch ghi v\u00e0o chu\u1ed7i kh\u1ed1i (v\u00ed d\u1ee5: g\u1eedi ti\u1ec1n), API th\u01b0\u1eddng gi\u00fap t\u1ea1o giao d\u1ecbch, k\u00fd b\u1eb1ng kh\u00f3a ri\u00eang t\u01b0 (th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef an to\u00e0n) v\u00e0 ph\u00e1t s\u00f3ng (broadcast) giao d\u1ecbch \u0111\u00f3 l\u00ean m\u1ea1ng l\u01b0\u1edbi.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Giam_sat_va_phan_tich_API_Blockchain\"><\/span><b>Gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch API Blockchain<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u1ee9ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 \u1ed5n \u0111\u1ecbnh, vi\u1ec7c gi\u00e1m s\u00e1t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a API Blockchain l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/span><\/p>\n<figure id=\"attachment_2637\" aria-describedby=\"caption-attachment-2637\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2637 size-full\" title=\"Gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch API Blockchain\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-7.webp\" alt=\"Gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch API Blockchain\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-7.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2025\/12\/api-blockchain-7-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2637\" class=\"wp-caption-text\">Gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch API Blockchain<\/figcaption><\/figure>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Theo d\u00f5i \u0110\u1ed9 tr\u1ec5 (Latency) v\u00e0 T\u1ef7 l\u1ec7 L\u1ed7i:<\/b><span style=\"font-weight: 400;\"> C\u1ea7n theo d\u00f5i th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a API. \u0110\u1ed9 tr\u1ec5 cao c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng, trong khi t\u1ef7 l\u1ec7 l\u1ed7i t\u0103ng cao c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a s\u1ef1 c\u1ed1 m\u1ea1ng l\u01b0\u1edbi ho\u1eb7c v\u1ea5n \u0111\u1ec1 v\u1edbi nh\u00e0 cung c\u1ea5p API.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ph\u00e2n t\u00edch D\u1eef li\u1ec7u Giao d\u1ecbch:<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch \u0111\u1ec3 theo d\u00f5i s\u1ed1 l\u01b0\u1ee3ng giao d\u1ecbch, lo\u1ea1i giao d\u1ecbch, chi ph\u00ed gas\/ph\u00ed, v\u00e0 l\u01b0u l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Thi\u1ebft l\u1eadp Th\u00f4ng b\u00e1o (Alerts):<\/b><span style=\"font-weight: 400;\"> Thi\u1ebft l\u1eadp th\u00f4ng b\u00e1o t\u1ef1 \u0111\u1ed9ng cho c\u00e1c s\u1ef1 ki\u1ec7n quan tr\u1ecdng nh\u01b0 giao d\u1ecbch th\u1ea5t b\u1ea1i, th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng gi\u1ea3m xu\u1ed1ng ho\u1eb7c khi ch\u1ea1m gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 truy c\u1eadp \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng k\u1ecbp th\u1eddi.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ki\u1ec3m tra Kh\u00f3a API v\u00e0 B\u1ea3o m\u1eadt:<\/b><span style=\"font-weight: 400;\"> Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra vi\u1ec7c s\u1eed d\u1ee5ng kh\u00f3a API v\u00e0 \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 ho\u1ea1t \u0111\u1ed9ng truy c\u1eadp tr\u00e1i ph\u00e9p.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Tieu_chi_chon_nha_cung_cap_API_Blockchain_phu_hop\"><\/span><b>Ti\u00eau ch\u00ed ch\u1ecdn nh\u00e0 cung c\u1ea5p API Blockchain ph\u00f9 h\u1ee3p<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vi\u1ec7c l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p API Blockchain l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh chi\u1ebfn l\u01b0\u1ee3c, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ki\u1ebfn tr\u00fac v\u00e0 t\u00ednh b\u1ec1n v\u1eefng c\u1ee7a \u1ee9ng d\u1ee5ng.<\/span><br \/>\n<!-- Responsive styled table --><\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"border-collapse: collapse; width: 100%; font-family: Arial, Helvetica, sans-serif; font-size: 15px; min-width: 720px;\" role=\"table\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\" aria-label=\"Ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 d\u1ecbch v\u1ee5 API Blockchain\">\n<thead style=\"background-color: #f2f2f2;\">\n<tr>\n<th style=\"width: 30%; text-align: center;\" scope=\"col\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"width: 40%; text-align: center;\" scope=\"col\">M\u00f4 t\u1ea3 Chi ti\u1ebft<\/th>\n<th style=\"width: 30%; text-align: center;\" scope=\"col\">T\u1ea1i sao l\u1ea1i Quan tr\u1ecdng?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background-color: #ffffff;\">\n<td><strong>Gi\u00e1 c\u1ea3 &amp; M\u00f4 h\u00ecnh Thanh to\u00e1n<\/strong><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\nKi\u1ec3m tra c\u1ea5u tr\u00fac gi\u00e1: theo s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u, theo s\u1ed1 l\u01b0\u1ee3ng node, ho\u1eb7c theo b\u0103ng th\u00f4ng.<br \/>\n<\/span><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\nT\u1ed1i \u01b0u h\u00f3a chi ph\u00ed v\u1eadn h\u00e0nh, \u0111\u1eb7c bi\u1ec7t khi \u1ee9ng d\u1ee5ng m\u1edf r\u1ed9ng.<br \/>\n<\/span><\/td>\n<\/tr>\n<tr style=\"background-color: #fafafa;\">\n<td><strong>S\u1ef1 \u0111a d\u1ea1ng c\u1ee7a Endpoint<\/strong><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\nAPI cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n (\u0111\u1ecdc\/ghi) hay c\u00e1c ch\u1ee9c n\u0103ng n\u00e2ng cao<br \/>\n(qu\u1ea3n l\u00fd v\u00ed, NFT, DeFi data).<br \/>\n<\/span><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\n\u0110\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 \u0111\u1ee7 c\u00f4ng c\u1ee5 cho c\u00e1c t\u00ednh n\u0103ng hi\u1ec7n t\u1ea1i v\u00e0 t\u01b0\u01a1ng lai c\u1ee7a \u1ee9ng d\u1ee5ng.<br \/>\n<\/span><\/td>\n<\/tr>\n<tr style=\"background-color: #ffffff;\">\n<td><strong>C\u1ed9ng \u0111\u1ed3ng &amp; M\u1ee9c \u0111\u1ed9 ph\u1ed5 bi\u1ebfn<\/strong><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\nC\u00e1c nh\u00e0 cung c\u1ea5p l\u1edbn th\u01b0\u1eddng c\u00f3 c\u1ed9ng \u0111\u1ed3ng nh\u00e0 ph\u00e1t tri\u1ec3n l\u1edbn h\u01a1n,<br \/>\n\u0111\u1ed3ng ngh\u0129a v\u1edbi nhi\u1ec1u t\u00e0i nguy\u00ean, h\u01b0\u1edbng d\u1eabn v\u00e0 h\u1ed7 tr\u1ee3 t\u1ed1t h\u01a1n.<br \/>\n<\/span><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\nGi\u00fap gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 nhanh h\u01a1n v\u00e0 c\u00f3 nhi\u1ec1u t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp h\u01a1n.<br \/>\n<\/span><\/td>\n<\/tr>\n<tr style=\"background-color: #fafafa;\">\n<td><strong>T\u1ed1c \u0111\u1ed9 v\u00e0 Hi\u1ec7u su\u1ea5t<\/strong><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\nT\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 h\u00f3a (sync) c\u1ee7a node v\u00e0 \u0111\u1ed9 tr\u1ec5 khi truy v\u1ea5n d\u1eef li\u1ec7u.<br \/>\n<\/span><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\n\u1ea2nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 t\u1ea3i d\u1eef li\u1ec7u v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<br \/>\n<\/span><\/td>\n<\/tr>\n<tr style=\"background-color: #ffffff;\">\n<td><strong>Ch\u00ednh s\u00e1ch Sao l\u01b0u &amp; Ph\u1ee5c h\u1ed3i<\/strong><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\nNh\u00e0 cung c\u1ea5p c\u00f3 ch\u00ednh s\u00e1ch sao l\u01b0u d\u1eef li\u1ec7u v\u00e0 kh\u00f4i ph\u1ee5c d\u1ecbch v\u1ee5 sau s\u1ef1 c\u1ed1 hay kh\u00f4ng?<br \/>\n<\/span><\/td>\n<td><span style=\"font-weight: 400;\"><br \/>\n\u0110\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c v\u00e0 \u1ed5n \u0111\u1ecbnh cho c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<br \/>\n<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><b>API Blockchain<\/b><span style=\"font-weight: 400;\"> l\u00e0 c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ec3 \u0111\u01b0a c\u00f4ng ngh\u1ec7 Blockchain v\u00e0o \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf m\u1ed9t c\u00e1ch nhanh ch\u00f3ng, hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n. B\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p ph\u00f9 h\u1ee3p v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t v\u1ec1 t\u00edch h\u1ee3p v\u00e0 gi\u00e1m s\u00e1t, b\u1ea1n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng to\u00e0n b\u1ed9 ti\u1ec1m n\u0103ng c\u1ee7a th\u1ebf gi\u1edbi phi t\u1eadp trung.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong k\u1ef7 nguy\u00ean s\u1ed1, Blockchain \u0111\u00e3 n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng mang t\u00ednh c\u00e1ch m\u1ea1ng, h\u1ee9a h\u1eb9n v\u1ec1 m\u1ed9t t\u01b0\u01a1ng lai minh b\u1ea1ch, phi t\u1eadp trung v\u00e0 b\u1ea3o m\u1eadt h\u01a1n. Tuy nhi\u00ean, vi\u1ec7c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi c\u00e1c s\u1ed5 c\u00e1i ph\u00e2n t\u00e1n (distributed ledgers) n\u00e0y c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n<\/p>\n","protected":false},"author":1,"featured_media":2640,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/2621"}],"collection":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/comments?post=2621"}],"version-history":[{"count":2,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/2621\/revisions"}],"predecessor-version":[{"id":2642,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/2621\/revisions\/2642"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/media\/2640"}],"wp:attachment":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/media?parent=2621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/categories?post=2621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/tags?post=2621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}