{"id":27478,"date":"2026-09-02T15:41:48","date_gmt":"2026-09-02T15:41:48","guid":{"rendered":"https:\/\/www.cityfalcon.ai\/blog\/?p=27478"},"modified":"2026-09-02T15:41:48","modified_gmt":"2026-09-02T15:41:48","slug":"building-financial-intelligence-a-developers-guide-to-our-news-sentiment-and-sector-data-apis","status":"publish","type":"post","link":"https:\/\/www.cityfalcon.ai\/blog\/fr\/the-startup-journey\/building-financial-intelligence-a-developers-guide-to-our-news-sentiment-and-sector-data-apis\/","title":{"rendered":"Building Financial Intelligence: A Developer&#8217;s Guide to Our News, Sentiment, and Sector Data APIs"},"content":{"rendered":"<h2><b>Introduction<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">If you&#8217;re building a trading agent, a research tool, a compliance system, or any application that consumes financial content at scale, you need one data infrastructure API that covers everything and affordably so: real-time news, sentiment scores, investor relations documents, and insider transactions. Not four separate integrations, not stale data, not token-burning LLMs, and not vendors that lock you into inflexible enterprise contracts.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The CityFALCON API delivers all of this through a single, consistent interface, aggregating content from over 10,000 sources across more than 50 languages, with proprietary sentiment analysis, NLU tagging, and the CityFALCON Score for relevance ranking. It&#8217;s the same infrastructure trusted by eToro, BNP Paribas, StockTwits, and StoneX.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This guide walks through exactly how to use the API, with real endpoint examples for each content type and practical filtering techniques. By the end, you will know how to pull financial news filtered by relevance, retrieve sentiment (per-item and timeseries), access investor relations documents like earnings and press releases, get insider transaction data, and combine these into complete workflows.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Why the CityFALCON API<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Before we dive into the endpoints, a quick note on what makes this API different from others in the market:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Breadth in one place<\/b><span style=\"font-weight: 400;\">. News, sentiment, IR documents, and insider transactions all use the same identifier format and share consistent metadata. No stitching together four vendors.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Structured and pre-scored<\/b><span style=\"font-weight: 400;\">. Every story is tagged with sentiment, entities, and a proprietary CityFALCON Score for relevance. You skip the expensive step of running raw text through an LLM to figure out what&#8217;s relevant.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Truly global<\/b><span style=\"font-weight: 400;\">. 50+ languages, 10,000+ sources, covering global markets around the clock.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Flexible consumption<\/b><span style=\"font-weight: 400;\">. Direct API access for enterprises or high-volume applications, plus per-call <\/span><a href=\"https:\/\/gateway.apiosk.com\/v1\/apis\/cityfalcon-financial-api\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">access via Apiosk<\/span><\/a><span style=\"font-weight: 400;\"> for AI agents and developers who want pay-as-you-go.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Now, the how-to.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Authentication<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">All CityFALCON API requests use a single authentication method: an <code>access_token<\/code> query parameter passed with every request. Very simple with no headers to configure, no OAuth flows, no session tokens.\u00a0<\/span><br \/>\n<span style=\"font-weight: 400;\">Example:<\/span><\/p>\n<p><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Simply append <\/span><code>access_token=YOUR_API_KEY<\/code><span style=\"font-weight: 400;\"> to any endpoint URL. Missing or invalid tokens return a 401 response. Test tokens are available for interested enterprises. See plans on <\/span><a href=\"https:\/\/www.cityfalcon.ai\/products\/api\/financial-news\/pricing-api\/commercial\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">our pricing page<\/span><\/a><span style=\"font-weight: 400;\">, then contact us with the form at the bottom of the page.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>How to Get Financial News via API<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Financial news is retrieved from the <\/span><code>\/stories<\/code><span style=\"font-weight: 400;\"> endpoint. Each story returns at least headline, source\u2019s description, asset tags, CityFALCON Score, source information, and optionally sentiment and NLU tags, so you have everything you need to make decisions without further processing.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Retrieve news for a ticker<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Retrieve stories about specific companies using full ticker format (<\/span><code>[ticker]_[country_code]<\/code><span style=\"font-weight: 400;\">):<\/span><\/p>\n<p><code>GET<\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifier_type=full_tickers&amp;identifiers=AAPL_US,MSFT_US,GOOG_US<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Make sure to use the \u201cfull tickers\u201d, that is the ticker plus the country code of the listing, which will disambiguate companies.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter news by language<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Restrict results to specific languages using ISO codes:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;languages=en,de<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Leave the parameter blank to get content in all 50+ available languages, essential for agents operating across global markets where a Japanese story at 3am Tokyo time can be just as market-moving as a New York headline.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter news by publisher category<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Focus on top-tier publications only:<\/span><\/p>\n<p><code>GET<\/code><code> https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;categories=mp<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Category slugs:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>mp<\/code><span style=\"font-weight: 400;\"> \u2014 major news publications<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>op<\/code><span style=\"font-weight: 400;\"> \u2014 other news publications<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>r<\/code><span style=\"font-weight: 400;\"> \u2014 research publications<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u201cMajor publications\u201d are about 200 that human analysts have determined to be the most important, influential, or reliable.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter news by relevance (CityFALCON Score)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Every story is scored 0-100 for relevance to the queried entity. This is one of the most powerful filtering tools in the API and something most competing providers don&#8217;t offer. Filter out low-relevance noise by setting a minimum score:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;min_cityfalcon_score=50<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Setting <\/span><code>min_cityfalcon_score=50<\/code><span style=\"font-weight: 400;\"> typically returns only substantive news about the target, excluding passing mentions. For humans, this makes reading results much easier and more impactful, both for professional users or general public end users. For any agent-related applications looking at thousands of tickers, this filter is the difference between a manageable feed and a cost-prohibitive firehose.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Note that smaller companies or those with little news volume may end up with lower scores (in part because one of the inputs to the CF score is the authority of the publishing source). It is best to maintain a fallback process to reduce the CF score in steps.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter by country<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Get news relevant to specific countries:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;country_codes=US,GB,JP<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter by defined events<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Filter for specific corporate events like buybacks or analyst ratings, no LLM parsing required:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;events=stock-buyback,analyst-sell-rating<\/code><\/p>\n<p><span style=\"font-weight: 400;\">See our help centre for the <\/span><a href=\"https:\/\/www.cityfalcon.ai\/help\/articles\/36799477030301-Common-Events-For-API-Queries\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">full list of events<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get news with sentiment attached<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Return the sentiment score alongside each story:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;with_sentiment=true<\/code><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For finer control, get sentiment broken down by entity within each story (e.g. Apple mentioned positively within an article that also references Samsung negatively):<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;with_sentiments_by_entities=true<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get news with NLU labels attached<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">CityFALCON automatically tags all incoming news content via its proprietary taxonomy. These tags are available to clients, too, which is particularly useful for anyone pulling large amounts of data and who needs to index inside their own applications.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Get these entity-recognition labels with a single parameter:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;with_nlu_labels=true<\/code><\/p>\n<p>&nbsp;<\/p>\n<h2><b>How to Get Sentiment Timeseries via API<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The dedicated <\/span><code>\/services\/sentiment<\/code><span style=\"font-weight: 400;\"> endpoint returns aggregated sentiment for specific entities over a defined time period. Instead of pulling raw stories and computing sentiment yourself (expensive and technically burdensome if you do it yourself), let CityFALCON do it behind the API and pull it all at once.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get sentiment for a company<\/b><b><br \/>\n<\/b><\/h3>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/services\/sentiment?access_token=YOUR_API_KEY&amp;identifier_type=full_tickers&amp;identifiers=AAPL_US&amp;period=d1<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get sentiment for multiple entities at once<\/b><\/h3>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/services\/sentiment?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US,MSFT_US,GOOG_US&amp;period=h8<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Supported time periods:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>m5<\/code><span style=\"font-weight: 400;\"> \u2014 5 minutes<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>m15<\/code><span style=\"font-weight: 400;\"> \u2014 15 minutes<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>h1<\/code><span style=\"font-weight: 400;\"> \u2014 1 hour<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>h8<\/code><span style=\"font-weight: 400;\"> \u2014 8 hours<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>d1<\/code><span style=\"font-weight: 400;\"> \u2014 1 day<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>w1<\/code><span style=\"font-weight: 400;\"> \u2014 1 week<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><code>mth1<\/code><span style=\"font-weight: 400;\"> \u2014 1 month<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Get sentiment for a country<\/b><\/h3>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/services\/sentiment?access_token=YOUR_API_KEY&amp;identifier_type=country_codes&amp;identifiers=US,JP&amp;period=w1<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Include averages and statistics<\/b><\/h3>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/services\/sentiment?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;period=d1&amp;average_for_period=true&amp;statistics_for_period=true<\/code><\/p>\n<p><span style=\"font-weight: 400;\">This includes story counts for each bucket (very positive, positive, etc.).<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>How to Get Investor Relations Documents via API<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Investor relations content, including earnings materials, press releases, and financial statements, is retrieved from the \/<\/span><i><span style=\"font-weight: 400;\">investor_relations<\/span><\/i><span style=\"font-weight: 400;\"> endpoint. IR data is critical for research and compliance, and it&#8217;s often the most useful signal for company-specific decisions.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get IR documents for a company<\/b><\/h3>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/investor_relations?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter IR documents by type<\/b><\/h3>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/investor_relations?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;type=Earnings,Press Release<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Supported types include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Earnings<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Press Release<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Financial Statements<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Others<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Filter IR documents by date range<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Retrieve documents between two dates (YYYY-MM-DD format):<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/investor_relations?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;start_date=2026-01-01&amp;end_date=2026-03-31\\<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Note: API queries are limited to the most recent 30 days. For historical analysis going further back, CityFALCON provides downloadable CSV datasets that can extend across years of coverage.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>How to Get Insider Transactions via API<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Insider transactions from corporate officers and major shareholders often provide some of the strongest early signals about a company&#8217;s trajectory. The <code>\/insider_transactions<\/code> endpoint delivers them in structured, filtered form.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Beyond the basic data, there is also an informative\/uninformative switch to narrow down actionable data or generally pull compliance-related information.<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">Note: Insider tx only covers US companies and officers that are required to file the SEC Form 4.<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get insider transactions for a company<\/b><\/h3>\n<p><code>GET\u00a0<\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/insider_transactions?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter insider transactions by type<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Filter for buys and sells only:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/insider_transactions?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;transaction_type=buy,sell<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Supported transaction types:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">buy<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">sell<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">gift<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">option exercised<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">other<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Filter for informative transactions only<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Not every insider transaction is meaningful. CityFALCON flags each as informative or uninformative based on how the form has been filled out by the officer\/filer, saving you from noise like automatic vesting or programmatic option exercises:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/insider_transactions?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;info_type=informative<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Filter insider transactions by date range<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Insider transaction dates use UNIX timestamps:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/insider_transactions?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US&amp;start_date=1717200000&amp;end_date=1719878400<\/code><\/p>\n<p>&nbsp;<\/p>\n<h2><b>How to Query Financial Content by DCSC Sectors<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">CityFALCON&#8217;s Dynamic Company Sector Classification (DCSC) system covers over 1,500 sectors across 4 levels. DCSC works across the <code>\/stories<\/code> and <code>\/services\/sentiment<\/code> endpoints, so you can pull news, sentiment, and relevance scores for entire sectors, not just individual tickers.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get news for a DCSC sector<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Retrieve stories tagged to a specific sector using the dcsc_sectors parameter on the \/stories endpoint:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;dcsc_sectors=semiconductors&amp;time_filter=d1<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Refine by DCSC sector level<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">DCSC is a hierarchical classification. Use dcsc_sector_level to narrow the query to a specific level of granularity:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;dcsc_sectors=semiconductors&amp;dcsc_sector_level=4<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Combine DCSC sectors with CityFALCON Score<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Filter for only the most relevant sector news by combining the DCSC sector filter with a minimum relevance score:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;dcsc_sectors=semiconductors&amp;min_cityfalcon_score=70&amp;time_filter=d1<\/code><\/p>\n<p><span style=\"font-weight: 400;\">This returns only high-relevance news across the entire semiconductor sector, replacing what would otherwise be dozens of individual ticker queries.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get sentiment for a DCSC sector<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Track aggregated sentiment for a specific sector:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/services\/sentiment?access_token=YOUR_API_KEY&amp;identifier_type=dcsc_sectors&amp;identifiers=semiconductors&amp;period=d1<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Get sentiment for multiple DCSC sectors at once<\/b><\/h3>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/services\/sentiment?access_token=YOUR_API_KEY&amp;identifier_type=dcsc_sectors&amp;identifiers=semiconductors,electric-vehicles,solar-energy&amp;period=w1<\/code><\/p>\n<p><span style=\"font-weight: 400;\">DCSC sector queries are particularly useful for macro and thematic strategies, sector rotation analysis, and any use case where tracking individual tickers is too narrow.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>How to Filter Financial Content at Scale<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The real power of the CityFALCON API comes from combining filters in a single request. Instead of pulling everything and filtering client-side (expensive at scale), let the API do the work. Here are practical patterns for common use cases.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>High-signal news for a portfolio<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Get only high-relevance news for a portfolio of tickers, in English, from major publications, from the past 8 hours, with sentiment attached:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifier_type=full_tickers&amp;identifiers=AAPL_US,MSFT_US,NVDA_US,AMZN_US&amp;languages=en&amp;categories=mp&amp;time_filter=h8&amp;with_nlu_labels=true&amp;min_cityfalcon_score=50&amp;with_sentiment=true&amp;with_nlu_labels=true<\/code><\/p>\n<p><span style=\"font-weight: 400;\">That&#8217;s one API call that returns data from a vast array of data sources, with sentiment and relevance metrics pre-calculated, fully-labeled with tags, in a machine-readable format and structure, plus basic metadata. Internally building all of that, and then processing the flood of results, is no small or economical task. Our API makes it straightforward and highly affordable.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Multilingual monitoring for a global company<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Get all news mentioning a company across all languages from the past hour, ideal for agents monitoring companies with global operations:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifier_type=full_tickers&amp;identifiers=TSLA_US&amp;time_filter=h1<\/code><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Event-driven filtering<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Detect specific corporate events across your watchlist without post-processing:<\/span><\/p>\n<p><code>GET <\/code><code>https:\/\/api.cityfalcon.com\/v0.2\/stories?access_token=YOUR_API_KEY&amp;identifiers=AAPL_US,MSFT_US,GOOG_US&amp;events=stock-buyback&amp;time_filter=w1<\/code><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Combining Content Types for Full Company Awareness<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Most serious use cases require multiple content types combined. Here&#8217;s how one might build a complete view of a single company using the CityFALCON API:<\/span><\/p>\n<p><b>Step 1 &#8211; Get high-relevance news with sentiment:<\/b><\/p>\n<p><code>GET <\/code><code>\/stories?identifiers=AAPL_US&amp;min_cityfalcon_score=50&amp;with_sentiment=true&amp;time_filter=d1<\/code><\/p>\n<p><b>Step 2 &#8211; Get aggregate sentiment for context:<\/b><\/p>\n<p><code>GET<\/code><code> \/services\/sentiment?identifiers=AAPL_US&amp;period=w1&amp;average_for_period=true<\/code><\/p>\n<p><b>Step 3 &#8211; Get recent IR documents:<\/b><\/p>\n<p><code>GET<\/code><code> \/investor_relations?identifiers=AAPL_US&amp;type=Earnings,Press Release<\/code><\/p>\n<p><b>Step 4 &#8211; Get insider transactions for the same period:<\/b><\/p>\n<p><code>GET <\/code><code>\/insider_transactions?identifiers=AAPL_US&amp;info_type=informative&amp;transaction_type=buy,sell<\/code><\/p>\n<p><span style=\"font-weight: 400;\">Four API calls, one company, complete picture. Try building that against four separate vendors or attempting to build the entire infrastructure internally.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Best Practices<\/b><\/h2>\n<p><b>Use full tickers with country codes<\/b><span style=\"font-weight: 400;\">. The <\/span><code>[ticker]_[country]<\/code><span style=\"font-weight: 400;\"> format (e.g. <\/span><code>AAPL_US<\/code><span style=\"font-weight: 400;\">, <\/span><code>GOOG_US<\/code><span style=\"font-weight: 400;\">) is unambiguous and works consistently across all endpoints. The same company listed in two countries has two different full tickers. As an example, <code>AA_GB<\/code> and <code>AA_US<\/code> are <\/span><i><span style=\"font-weight: 400;\">not <\/span><\/i><span style=\"font-weight: 400;\">the same company (British-American Tobacco and American Airlines, respectively).<\/span><\/p>\n<p><b>Filter with CityFALCON Score<\/b><span style=\"font-weight: 400;\">. Setting <\/span><code>min_cityfalcon_score=50<\/code><span style=\"font-weight: 400;\"> cuts out the noise of passing mentions and returns only substantive news. This dramatically reduces the volume you need to process and is one of the biggest cost savings available. Note that smaller companies may not have enough news with high scores, so it is useful to have a fallback and reduces the score in steps, then using your minimum score based on your particular use case and basket of companies, assets, and\/or topics.<\/span><\/p>\n<p><b>Match time periods to use case<\/b><span style=\"font-weight: 400;\">. Short periods (<\/span><code>m5<\/code><span style=\"font-weight: 400;\">, <\/span><code>m15<\/code><span style=\"font-weight: 400;\">, <\/span><code>h1<\/code><span style=\"font-weight: 400;\">) are ideal for real-time trading applications. Longer periods (<\/span><code>d1<\/code><span style=\"font-weight: 400;\">, <\/span><code>w1<\/code><span style=\"font-weight: 400;\">, <\/span><code>mth1<\/code><span style=\"font-weight: 400;\">) work better for research, backtesting, and trend tracking.<\/span><\/p>\n<p><b>Combine filters aggressively<\/b><span style=\"font-weight: 400;\">. Every filter you apply reduces the response payload and shortens processing time. Filter by ticker, category, language, and score in a single request rather than post-processing.<\/span><\/p>\n<p><b>Note the 30-day API window<\/b><span style=\"font-weight: 400;\">. All endpoints are limited to the most recent 30 days. For historical analysis, CityFALCON provides downloadable CSV datasets. Get in contact to discuss pricing and datasets available.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Getting Started<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The CityFALCON API is trusted by eToro, BNP Paribas, and StoneX, and available directly at cityfalcon.ai. For AI agents and developers who prefer pay-per-call access, CityFALCON is also listed on Proxygate and Apiosk, with no subscription required (not recommended for any high-volume cases as the per-call cost becomes more expensive than an enterprise contract).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Whether you&#8217;re a broker, a bank, a trading house, a research platform, a compliance system, or any application that needs structured financial content at scale, the CityFALCON API provides the news, sentiment, investor relations documents, and insider transactions you need through a single, consistent interface.<\/span><\/p>\n<p><a href=\"https:\/\/www.cityfalcon.ai\/products\/api\/financial-news\/pricing-api\/commercial\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Browse plans and costs<\/span><\/a><span style=\"font-weight: 400;\">, then contact us to get started!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction If you&#8217;re building a trading agent, a research tool, a compliance system, or any application that consumes financial content at scale, you need one data infrastructure API that covers everything and affordably so: real-time news, sentiment scores, investor relations&#8230; <a class=\"more-link\" href=\"https:\/\/www.cityfalcon.ai\/blog\/fr\/the-startup-journey\/building-financial-intelligence-a-developers-guide-to-our-news-sentiment-and-sector-data-apis\/\">Continuer la lecture \u2192<\/a><\/p>","protected":false},"author":10,"featured_media":27482,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-27478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-the-startup-journey"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Building Financial Intelligence: A Developer&#039;s Guide to Our News, Sentiment, and Sector Data APIs - CityFALCON 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:\/\/www.cityfalcon.ai\/blog\/fr\/the-startup-journey\/building-financial-intelligence-a-developers-guide-to-our-news-sentiment-and-sector-data-apis\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Building Financial Intelligence: A Developer&#039;s Guide to Our News, Sentiment, and Sector Data APIs - CityFALCON Blog\" \/>\n<meta property=\"og:description\" content=\"Introduction If you&#8217;re building a trading agent, a research tool, a compliance system, or any application that consumes financial content at scale, you need one data infrastructure API that covers everything and affordably so: real-time news, sentiment scores, investor relations... 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