FinFeedAPI blog

Welcome to the FinFeedAPI Blog. Here you’ll find fresh insights and helpful guides for anyone using our APIs — from stocks and crypto to prediction markets, forex, and more.
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      Product Features

      Technicalities of Prediction Market Data

      Working with prediction market data requires more than reading prices. Learn how to handle schemas, OHLCV, order books, and resolution using a modern prediction markets API.
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      General Knowledge

      Prediction Markets vs Options Markets: What’s the Difference?

      Prediction markets price real-world outcomes. Options markets price risk and volatility. Knowing the difference helps you read and use market data correctly.
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      Prediction Markets API

      Historical Prediction Market Data: What to Analyze

      What to analyze in historical prediction markets data? What’s actually meaningful, and what insights you can extract without falling into noise?
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      Use Case

      How to Detect Arbitrage Between Prediction Markets and Traditional Markets

      Learn how to detect arbitrage between prediction markets like Polymarket and Kalshi, including cross-venue hedges, sum-to-one checks, and practical detection pipelines.
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      Product Features

      Liquidity, Volume, and Signal Strength in Prediction Markets

      Not every probability move in a prediction market carries information. By analyzing liquidity conditions, trade activity, and price persistence, quantitative users can distinguish real signal from thin-book noise.
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      Stock market data APIs

      Stock API: How Exchange & Symbol Metadata Power Real Financial Apps

      Learn how to use the Stock API's metadata endpoints for exchanges and symbols to build more dynamic and efficient financial applications.
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      Product Features

      Understanding Prediction Market OHLCV Data: Structure and Use Cases

      Prediction market OHLCV data turns raw trades into structured probability candles. Here’s how it works — and why schema consistency matters.
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      General Knowledge

      Prediction Markets vs Betting Sites: What’s the Difference?

      Prediction markets price the future. Betting sites sell odds. Here’s why that distinction matters for builders and data teams.
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      Use Case

      Can You Build a Google Finance-Style App Using Only SEC Filings?

      With the FinFeedAPI SEC Filings API, you can stream, search, and structure SEC filings — turning raw EDGAR data into a live company intelligence app.
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      Tutorials

      Why Building a Prediction Markets Data Layer Is a Startup Opportunity

      Prediction markets are live probability engines. Here’s why building a structured data pipeline around them is a real startup opportunity.
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      Product Features

      How to Access SEC Filings: 10-K, 10-Q, 8-K and Earnings Press Releases via API

      Learn how to retrieve 10-K, 10-Q, and 8-K filings via SEC API, including how to download earnings press releases filed as Exhibit 99.1 directly from EDGAR.
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      Prediction Markets API

      Prediction Market Data: The Emerging Alternative Data Layer for Global Events

      Prediction market data is becoming a new alternative data layer. For institutions exploring edge, understanding this data is no longer optional.
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      Use Case

      What can you build with FinFeedAPI?

      If you combine normalized stock data, prediction markets, SEC filings, FX rates, and bulk S3 flat files, you can build systems that go far beyond simple charts.
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      Prediction Markets API

      Prediction Markets Data: Corporate Use-Cases & Real-World Applications

      Prediction Markets become a decision signal used by corporations, media organizations, research teams, and analysts who need to understand what is likely to happen next.
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      Prediction Markets API

      Prediction Market APIs: The Tool Behind Modern Forecasting

      If prediction market data is the fuel, the prediction market API is the engine that delivers it. Without an API, teams would waste hours scraping pages or cleaning messy information.
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      Prediction Markets API

      Dynamic Forecasting Systems

      Dynamic forecasting systems track how probabilities evolve in real time, using prediction market data to update confidence as belief and information change.
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      Prediction Markets API

      Forecast Drift: Why Probabilities Change Over Time

      Forecast drift shows how probabilities change as the crowd learns — slowly when confidence builds, suddenly when new information shocks the market.
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      Prediction Markets API

      Election Forecasting vs Prediction Markets

      Polls track voter intent, prediction markets track expectations - and the gap between them is often the real signal.
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      Prediction Markets API

      Prediction Markets as Collective Intelligence Systems

      Prediction markets turn crowd disagreement into live probability signals, working as collective intelligence systems - not betting platforms.
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      Prediction Markets API

      Are Prediction Markets Accurate? A Look at Forecast Errors

      Prediction markets are judged by forecast error, not by being right or wrong because how close the probability was matters more than the final outcome.