US Treasury (UST) Interest Rates API (beta)<\/a><\/strong>\u00a0from EODHD provides structured, user-friendly access to official US Treasury interest-rate datasets – including Treasury bill (T-Bill) rates, long-term rates, the nominal par yield curve, and the real yield curve – delivered as time series that are widely used for macro research, fixed-income analytics, discounting\/cost of capital, yield-curve modelling, and building risk-free rate baselines in trading and portfolio systems. The API is organized into four core endpoints (Bill Rates, Long-Term Rates, Yield Rates, Real Yield Rates), supports filtering by year (defaulting to the current year when omitted), and consumes\u00a01 API call per request. Available to free and paid users.<\/p>\n","protected":false},"excerpt":{"rendered":"The\u00a0US Treasury (UST) Interest Rates API (beta)\u00a0from EODHD provides structured, user-friendly access to official US Treasury interest-rate datasets – including Treasury bill (T-Bill) rates, long-term rates, the nominal par yield curve, and the real yield curve – delivered as time series that are widely used for macro research, fixed-income analytics,…<\/p>\n","protected":false},"author":6,"featured_media":2544,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[475,474,476],"class_list":["post-2543","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-announcement","tag-treasury","tag-usa","tag-yield-rates","entry"],"yoast_head":"\n
US Treasury Interest Rates API | EODHD APIs Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"US Treasury Interest Rates API\" \/>\n<meta property=\"og:description\" content=\"The\u00a0US Treasury (UST) Interest Rates API (beta)\u00a0from EODHD provides structured, user-friendly access to official US Treasury interest-rate datasets -\" \/>\n<meta property=\"og:url\" content=\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api\" \/>\n<meta property=\"og:site_name\" content=\"Financial Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/eodhistoricaldata\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-04T13:40:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-04T13:41:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2244\" \/>\n\t<meta property=\"og:image:height\" content=\"871\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"EODHD Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@EOD_data\" \/>\n<meta name=\"twitter:site\" content=\"@EOD_data\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"EODHD Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#article\",\"isPartOf\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api\"},\"author\":{\"name\":\"EODHD Team\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/person\/9a841715c0edd2db5e57b7a76276e1f8\"},\"headline\":\"US Treasury Interest Rates API\",\"datePublished\":\"2026-02-04T13:40:59+00:00\",\"dateModified\":\"2026-02-04T13:41:52+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api\"},\"wordCount\":113,\"publisher\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage\"},\"thumbnailUrl\":\"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png\",\"keywords\":[\"Treasury\",\"USA\",\"Yield Rates\"],\"articleSection\":[\"Announcement\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api\",\"url\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api\",\"name\":\"US Treasury Interest Rates API | EODHD APIs Blog\",\"isPartOf\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage\"},\"image\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage\"},\"thumbnailUrl\":\"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png\",\"datePublished\":\"2026-02-04T13:40:59+00:00\",\"dateModified\":\"2026-02-04T13:41:52+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage\",\"url\":\"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png\",\"contentUrl\":\"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png\",\"width\":2244,\"height\":871},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/eodhd.com\/financial-apis-blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"US Treasury Interest Rates API\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#website\",\"url\":\"https:\/\/eodhd.com\/financial-apis-blog\/\",\"name\":\"Financial APIs Blog | EODHD\",\"description\":\"Financial Data APIs. Fundamental, End of Day (EOD), Real-Time\/Live.\",\"publisher\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#organization\"},\"alternateName\":\"EODHD Financial Data APIs Blog\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/eodhd.com\/financial-apis-blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#organization\",\"name\":\"EODHD (EOD Historical Data)\",\"url\":\"https:\/\/eodhd.com\/financial-apis-blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2023\/12\/EODHD-Logo.png\",\"contentUrl\":\"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2023\/12\/EODHD-Logo.png\",\"width\":159,\"height\":82,\"caption\":\"EODHD (EOD Historical Data)\"},\"image\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/eodhistoricaldata\",\"https:\/\/x.com\/EOD_data\",\"https:\/\/www.reddit.com\/r\/EODHistoricalData\/\",\"https:\/\/eod-historical-data.medium.com\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/person\/9a841715c0edd2db5e57b7a76276e1f8\",\"name\":\"EODHD Team\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/020e454749b61223b72b1bf96e7978ccdd1e39b04585b29698da3767a193a57d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/020e454749b61223b72b1bf96e7978ccdd1e39b04585b29698da3767a193a57d?s=96&d=mm&r=g\",\"caption\":\"EODHD Team\"},\"url\":\"https:\/\/eodhd.com\/financial-apis-blog\/author\/a-pletnev\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"US Treasury Interest Rates API | EODHD APIs Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api","og_locale":"en_US","og_type":"article","og_title":"US Treasury Interest Rates API","og_description":"The\u00a0US Treasury (UST) Interest Rates API (beta)\u00a0from EODHD provides structured, user-friendly access to official US Treasury interest-rate datasets -","og_url":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api","og_site_name":"Financial Blog","article_publisher":"https:\/\/www.facebook.com\/eodhistoricaldata","article_published_time":"2026-02-04T13:40:59+00:00","article_modified_time":"2026-02-04T13:41:52+00:00","og_image":[{"width":2244,"height":871,"url":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png","type":"image\/png"}],"author":"EODHD Team","twitter_card":"summary_large_image","twitter_creator":"@EOD_data","twitter_site":"@EOD_data","twitter_misc":{"Written by":"EODHD Team","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#article","isPartOf":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api"},"author":{"name":"EODHD Team","@id":"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/person\/9a841715c0edd2db5e57b7a76276e1f8"},"headline":"US Treasury Interest Rates API","datePublished":"2026-02-04T13:40:59+00:00","dateModified":"2026-02-04T13:41:52+00:00","mainEntityOfPage":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api"},"wordCount":113,"publisher":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/#organization"},"image":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage"},"thumbnailUrl":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png","keywords":["Treasury","USA","Yield Rates"],"articleSection":["Announcement"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api","url":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api","name":"US Treasury Interest Rates API | EODHD APIs Blog","isPartOf":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage"},"image":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage"},"thumbnailUrl":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png","datePublished":"2026-02-04T13:40:59+00:00","dateModified":"2026-02-04T13:41:52+00:00","breadcrumb":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#primaryimage","url":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png","contentUrl":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png","width":2244,"height":871},{"@type":"BreadcrumbList","@id":"https:\/\/eodhd.com\/financial-apis-blog\/us-treasuryinterest-rates-api#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/eodhd.com\/financial-apis-blog\/"},{"@type":"ListItem","position":2,"name":"US Treasury Interest Rates API"}]},{"@type":"WebSite","@id":"https:\/\/eodhd.com\/financial-apis-blog\/#website","url":"https:\/\/eodhd.com\/financial-apis-blog\/","name":"Financial APIs Blog | EODHD","description":"Financial Data APIs. Fundamental, End of Day (EOD), Real-Time\/Live.","publisher":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/#organization"},"alternateName":"EODHD Financial Data APIs Blog","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/eodhd.com\/financial-apis-blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/eodhd.com\/financial-apis-blog\/#organization","name":"EODHD (EOD Historical Data)","url":"https:\/\/eodhd.com\/financial-apis-blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/logo\/image\/","url":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2023\/12\/EODHD-Logo.png","contentUrl":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2023\/12\/EODHD-Logo.png","width":159,"height":82,"caption":"EODHD (EOD Historical Data)"},"image":{"@id":"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/eodhistoricaldata","https:\/\/x.com\/EOD_data","https:\/\/www.reddit.com\/r\/EODHistoricalData\/","https:\/\/eod-historical-data.medium.com\/"]},{"@type":"Person","@id":"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/person\/9a841715c0edd2db5e57b7a76276e1f8","name":"EODHD Team","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/eodhd.com\/financial-apis-blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/020e454749b61223b72b1bf96e7978ccdd1e39b04585b29698da3767a193a57d?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/020e454749b61223b72b1bf96e7978ccdd1e39b04585b29698da3767a193a57d?s=96&d=mm&r=g","caption":"EODHD Team"},"url":"https:\/\/eodhd.com\/financial-apis-blog\/author\/a-pletnev"}]}},"jetpack_featured_media_url":"https:\/\/eodhd.com\/financial-apis-blog\/wp-content\/uploads\/2026\/02\/US-Treasury-banner.png","jetpack_shortlink":"https:\/\/wp.me\/p9Nz7H-F1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/posts\/2543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/comments?post=2543"}],"version-history":[{"count":4,"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/posts\/2543\/revisions"}],"predecessor-version":[{"id":2548,"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/posts\/2543\/revisions\/2548"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/media\/2544"}],"wp:attachment":[{"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/media?parent=2543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/categories?post=2543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eodhd.com\/financial-apis-blog\/wp-json\/wp\/v2\/tags?post=2543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}