{"id":532,"date":"2024-12-06T11:54:20","date_gmt":"2024-12-06T16:54:20","guid":{"rendered":"https:\/\/www.tiingo.com\/blog\/?p=532"},"modified":"2026-07-23T23:29:32","modified_gmt":"2026-07-24T03:29:32","slug":"yahoo-finance-api","status":"publish","type":"post","link":"https:\/\/www.tiingo.com\/blog\/yahoo-finance-api\/","title":{"rendered":"Yahoo Finance API: What It Is, How to Access It, and a Compliant Alternative"},"content":{"rendered":"<p><em><strong>A note from Tiingo:<\/strong> We&#8217;re bringing our blog fully in-house. Every article is now written and fact-checked by the Tiingo team, and we&#8217;re republishing our existing posts to meet that editorial standard.<\/em><\/p>\n<hr\/>\n<p>If you searched for the &#8220;Yahoo Finance API,&#8221; there isn&#8217;t an official one, and there hasn&#8217;t been since 2017. The demand is very real, though. Developers built scrapers and crawlers around Yahoo&#8217;s data years ago, and many still lean on them today. This guide covers what &#8220;Yahoo Finance API&#8221; actually means now, how people access that data, what it quietly costs you, and when a licensed, exchange-compliant API is the better foundation.<\/p>\n<h2>Is there an official Yahoo Finance API?<\/h2>\n<p>No. Yahoo discontinued its official Finance API in 2017. The end-of-day historical-data download endpoint was shut off on May 16, 2017, and the YQL-based APIs were retired that November. Yahoo has never published or supported an official, documented Finance API since.<\/p>\n<p>And yet &#8220;Yahoo Finance API&#8221; still gets searched heavily every month, because the tooling people built around Yahoo&#8217;s data mostly still works. So when developers say &#8220;the Yahoo Finance API&#8221; today, they almost always mean one of the <em>unofficial<\/em> ways to pull data from Yahoo Finance. It&#8217;s worth knowing exactly what those are &#8211; and what they cost you.<\/p>\n<h2>How people actually get Yahoo Finance data today<\/h2>\n<p>These methods are all unofficial, and they may go against Yahoo&#8217;s Terms of Service. Plenty of people use them anyway, usually because they aren&#8217;t aware of the licensing side or that other options exist.<\/p>\n<h3>1. yfinance, the community Python library<\/h3>\n<p>The most popular route by far is the open-source yfinance library, which reads Yahoo&#8217;s undocumented internal JSON endpoints (on hosts like <code>query1.finance.yahoo.com<\/code>) and wraps them in a clean Python interface. It&#8217;s unofficial by the maintainers&#8217; own description: &#8220;not affiliated, endorsed, or vetted by Yahoo.&#8221;<\/p>\n<h3>2. The undocumented JSON endpoints<\/h3>\n<p>Some people call the <code>query1\/query2.finance.yahoo.com<\/code> endpoints directly. They&#8217;re undocumented and unversioned, so they can change or break without notice.<\/p>\n<h3>3. The RapidAPI &#8220;Yahoo Finance&#8221; wrappers<\/h3>\n<p>Several third parties re-host scraped Yahoo data behind paid APIs on marketplaces like RapidAPI. They add a convenient interface and a middleman, but it&#8217;s still the same unofficial Yahoo data underneath.<\/p>\n<h2>The catch: what unofficial access really costs you<\/h2>\n<ul>\n<li><strong>It breaks.<\/strong> Undocumented endpoints change or vanish without warning, and your pipeline goes down with them.<\/li>\n<li><strong>Rate limits and IP bans.<\/strong> Scraped access gets throttled or blocked, and there&#8217;s no support line to call when it does.<\/li>\n<li><strong>No SLA, no support, no guarantees.<\/strong> Nothing is promised about uptime, accuracy, or continuity.<\/li>\n<li><strong>Terms-of-service and licensing risk.<\/strong> This is the big one. Much of the data on Yahoo Finance is licensed from exchanges and vendors that restrict redistribution. Scraping and reusing it, especially commercially, can put you on the wrong side of both Yahoo&#8217;s terms and the underlying data licenses.<\/li>\n<\/ul>\n<p>These tradeoffs matter most once you&#8217;re shipping to customers or relying on this in production.<\/p>\n<h2>Why we built Tiingo: the exchange-compliant alternative<\/h2>\n<p>This is exactly the gap we started Tiingo to close: reliable, properly licensed market data through a clean, documented, stable API. We&#8217;ve been making high-end data accessible and affordable since 2014, and the whole point was to give you the convenience developers loved about Yahoo without the fragility or the compliance risk.<\/p>\n<ul>\n<li><strong>Licensed and exchange-compliant.<\/strong> Our data is sourced and redistributed under proper agreements, so you can build commercial products on it with confidence.<\/li>\n<li><strong>Deep coverage.<\/strong> 80,000+ stocks and funds with end-of-day history back to 1962, real-time and intraday data via IEX, plus fundamentals, news, forex, and crypto.<\/li>\n<li><strong>U.S. equities around the clock.<\/strong> Beyond the 9:30 to 4:00 session, we deliver <a href=\"https:\/\/www.tiingo.com\/documentation\/equity-realtime-stock-data\">multi-venue consolidated, 24&#215;5 real-time equity data<\/a> across extended hours and <a href=\"https:\/\/www.tiingo.com\/products\/boats-blue-ocean-ats-real-time-overnight-stock-prices\">overnight-session prices via Blue Ocean ATS (BOATS)<\/a>, with 12,000+ U.S. names quotable overnight. We were first to open the <a href=\"https:\/\/www.tiingo.com\/blog\/blue-ocean-ats-overnight-stock-data\/\">Blue Ocean ATS API<\/a> to individual developers. If you&#8217;re a developer outside the U.S., or you run always-on strategies, you&#8217;re not stuck with a single daytime window anymore.<\/li>\n<li><strong>A documented REST API.<\/strong> One query is one request, with a usable free tier to get started.<\/li>\n<li><strong>Stability you can plan around.<\/strong> Our <a href=\"https:\/\/www.tiingo.com\/documentation\/appendix\/developers\">Developer Program<\/a> commits to at least one year&#8217;s notice before any breaking change. That&#8217;s the opposite of an endpoint quietly disappearing overnight.<\/li>\n<\/ul>\n<h3>Crypto: reliable exchanges, not just more of them<\/h3>\n<p>Crypto is where &#8220;just scrape an exchange&#8221; gets especially risky, because exchange feeds vary enormously in quality. We aggregate data from over 150 crypto exchanges &#8211; both centralized (CEX) and decentralized (DEX) venues, natively &#8211; but we treat them as unequal. We lean on an internal assessment of each venue&#8217;s reliability rather than blending everything together indiscriminately. Two exchanges that consistently rank among the most reliable are <strong>Binance<\/strong> and <strong>Coinbase<\/strong>, which is why they anchor much of our crypto coverage.<\/p>\n<p>Bitcoin and Ethereum are <em>assets and networks<\/em>, not exchanges. The exchanges are venues like Binance and Coinbase where those assets trade. Choosing reliable venues is the entire game when your data has to be trustworthy.<\/p>\n<h2>Yahoo Finance API vs. Tiingo, at a glance<\/h2>\n<table>\n<thead>\n<tr>\n<th>&nbsp;<\/th>\n<th>&#8220;Yahoo Finance API&#8221; (unofficial)<\/th>\n<th>Tiingo<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Official \/ supported<\/strong><\/td>\n<td>No &#8211; discontinued in 2017<\/td>\n<td>Yes &#8211; documented &amp; supported<\/td>\n<\/tr>\n<tr>\n<td><strong>Licensing \/ compliance<\/strong><\/td>\n<td>Gray area; redistribution restricted<\/td>\n<td>Licensed, exchange-compliant<\/td>\n<\/tr>\n<tr>\n<td><strong>Stability<\/strong><\/td>\n<td>Undocumented; breaks without notice<\/td>\n<td>1-year notice before breaking changes<\/td>\n<\/tr>\n<tr>\n<td><strong>Coverage<\/strong><\/td>\n<td>Whatever Yahoo happens to expose<\/td>\n<td>\n<ul>\n<li>Multi-venue consolidated 24&#215;5 real-time U.S. equities<\/li>\n<li>Extended &amp; overnight hours via Blue Ocean ATS (BOATS)<\/li>\n<li>End-of-day stocks &amp; funds back to 1962<\/li>\n<li>Fundamentals, news, forex<\/li>\n<li>Crypto across 150+ exchanges (CEX &amp; DEX)<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td><strong>Support \/ SLA<\/strong><\/td>\n<td>None<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td><strong>Cost<\/strong><\/td>\n<td>Free, with hidden costs<\/td>\n<td>Free tier + paid plans<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>The bottom line<\/h2>\n<p>There is no official Yahoo Finance API, and there hasn&#8217;t been since 2017. The unofficial routes are popular, but they&#8217;re unofficial and can get unreliable the moment you need to depend on them. If you&#8217;ve hit that wall &#8211; broken scrapers, IP bans, or licensing questions you can&#8217;t answer &#8211; a licensed, exchange-compliant API is the durable fix. You can <a href=\"https:\/\/www.tiingo.com\/\">grab a free Tiingo API token<\/a> and pull your first prices in a couple of minutes. We&#8217;ve been at this since 2014 (we&#8217;re the oldest accessible retail market-data API still around), and we&#8217;d love to see what you build with it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A note from Tiingo: We&#8217;re bringing our blog fully in-house. Every article is now written and fact-checked by the Tiingo team, and we&#8217;re republishing our existing posts to meet that editorial standard. If you searched for the &#8220;Yahoo Finance API,&#8221; there isn&#8217;t an official one, and there hasn&#8217;t been since 2017. The demand is very [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":681,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"osom_blocks_metabox":"","inline_featured_image":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-532","post","type-post","status-publish","format-standard","has-post-thumbnail","category-market-data","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Yahoo Finance API: What It Is + a Compliant Alternative | Tiingo<\/title>\n<meta name=\"description\" content=\"There&#039;s no official Yahoo Finance API \u2014 it was discontinued in 2017. 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