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NEW: Prediction Markets API

One REST API for all prediction markets data
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featured imageMaciej
May 21, 2025

Introducing Stock API: Access Historical Market Data

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Most developers hit the same wall when working with stock market data: free feeds are too shallow, premium feeds are too expensive, and most APIs hide the good stuff behind vague endpoints.
That’s why Stock API by FinFeedAPI has become a go-to for teams who need historical market data — not just closing prices, but the kind of granular event-level IEX data that helps you understand how the market actually moved.

If your project needs historical trades, full order books, deep OHLCV series, or clean symbol metadata, this API gives you the raw materials to build serious financial tools without the usual friction.

The base URL:
https://api-historical.stock.finfeedapi.com
Auth: API Key or Bearer Token.

The Stock API organizes historical market data into three main groups:
native IEX data, metadata, and OHLCV timeseries.
Each serves a different purpose, and together they form a complete historical market archive.

This is the kind of data developers usually can’t get without paying thousands. You get date-based historical files with everything the exchange broadcasted that day.

  • Admin Messages:
    Trading status flags, official opens/closes, auction info, halts, retail liquidity indicators — all logged and timestamped.
  • Level-3 Order Book:
    Every add, cancel, modify, execute order. Every book-clearing event. A tick-by-tick replay of market micro-structure.
  • Level-2 Price Levels:
    Aggregated bids and asks, updated as liquidity shifts across the book.
  • Level-1 Quotes:
    Top-of-book bid/ask with size, perfect for dashboards and last-price queries.
  • Trades:
    Every execution: price, size, conditions.
  • System Events:
    Exchange-wide signals like market open, close, and session changes.

Historical analysis only works if you can trust tickers and exchange identifiers.
The metadata endpoints let you pull:

  • Exchanges: MICs, names, status, country, operating MIC.
  • Symbols: Listed companies, categories, names per exchange.

This keeps your app synced with real market structure and removes the need for hardcoded ticker lists.

When you just need candles, you can fetch them in any timeframe — from 1-second bars all the way to 5-year intervals.

You can query:

  • Single symbol OHLCV
  • All symbols on an exchange
  • Latest bars for quick snapshots
  • Long historical ranges with pagination up to 100,000 points

This forms the backbone of indicators, charting libraries, and backtests.

Most APIs only give you closing prices.
Some give you intraday bars.
Almost none give you historical L1, L2, and L3 data from a real U.S. exchange.

That’s the difference here.

You’re not guessing what happened. You’re not estimating liquidity.
You’re seeing the actual sequence of events that shaped the price — the quotes, the trades, the micro-moves.

For developers, that level of detail unlocks things that normal datasets simply can’t:

  • cleaner backtests
  • more accurate models
  • better charting
  • richer research
  • deeper insights

And the best part? You access it all the same way: a simple REST call.

Here’s what developers are already doing with it:

  • Algorithmic Trading & Backtesting - Reconstruct order books, simulate entries, detect patterns that normal OHLCV misses.
  • Market Research Tools - Study halts, auctions, quote shifts, and trade conditions across months or years.
  • Portfolio Trackers - Blend current snapshots with long-term history to show real performance.
  • Risk & Volatility Systems - Use second-level bars and trade records to measure true intraday volatility.
  • Education & Training Apps - Let users step through a trading session tick by tick.
  • Custom Financial Dashboards - Feed charts, scanners, event logs, and symbol lookups from a single API.

If your users need to see or understand how price moves, this data gives them more clarity than standard retail datasets ever could.

Historical stock data is only useful when it’s complete, clean, and consistent.
Stock API gives you all three — plus deep IEX data that most developers never get access to.

If you’re building anything that touches historical prices, liquidity, micro-structure, or market events, this API gives you the foundation you need.

Explore the docs, grab a FREE API key, and start shaping your market tools with real market history — not guesswork.

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