FINANCIAL DATA API • STOCKS • ETFS • CRYPTO

Stock & crypto price prediction API for 40,000+ symbols.

BAKO API gives developers historical prices and machine-learning price predictions for stocks, ETFs, and cryptocurrencies through one simple REST API. Free to start — no API key needed to explore symbols.

Explore the Docs →
40,000+
Symbols
34K+ Stocks
6.7K+ Crypto
100 days
Forecast Horizon
49.85%
Yesterday's Avg Accuracy
€0
Free Tier to Start

Forecasts are statistical estimates based on historical data. They are not financial advice, and past accuracy does not guarantee future results.

Prediction vs. Actual Price (Retrospect)

Historical comparison between previous ML prediction runs and actual market close prices.

WHAT BAKO API COVERS

One financial data API for prices, history, and predictions.

Most market data APIs return prices. BAKO API returns prices and forecasts — so you can build dashboards, screeners, research tools, and prototypes without wiring up a separate prediction model.

Historical stock & crypto prices

Daily close prices for every symbol, from first listing to today. Query any date range with a single request.

COVERAGE: 40,000+ symbols • Daily closes • Full history

ML-powered price predictions up to 100 days

Forecasts generated daily by Vertex AI (TimesFM) and TensorFlow.js models, enhanced with real-time news analysis. Every prediction is scored against actual prices, and the accuracy is published daily.

MODELS: Vertex AI TimesFM • TensorFlow.js • News-enhanced • Daily scoring

A simple REST API, documented end to end

Three endpoints. Clear parameters. Copy-paste examples in cURL, Python, and JavaScript. No SDK to install, no complex auth flow.

ENDPOINTS: /v1/symbols • /v1/history • /v1/predictions Read the docs →
TRANSPARENT BY DESIGN

Prediction accuracy, published daily.

Every prediction is compared against the actual price. We publish yesterday's accuracy, the 30-day average, and the all-time average — so you can judge the model on evidence, not marketing. Accuracy varies by market conditions; volatile periods are harder to predict. That is why we show the numbers instead of hiding them.

Yesterday's Avg Accuracy

49.85%

All-Time Avg Accuracy

36.87%
30-Day Prediction Accuracy
30-day avg: 58.07% across 63,442 forecasts
Prediction accuracy over 30 days

How We Calculate Prediction Accuracy

1
Directional correctness: Did the prediction get the direction right (up / down / stable)? Price changes within 0.05% are treated as neutral.
2
Magnitude of error: If the direction was right, how close was the predicted price change to the actual change?
3
Normalised accuracy: Error is normalised by the previous price. Final accuracy = 100% − normalised error, floored at 0%.

Benchmark & Methodology: Directional correctness is scored against market movements. Past accuracy reflects model performance under varying market volatility and does not guarantee future results.

BUILT FOR DEVELOPERS AND BUILDERS

What you can build with BAKO API.

Designed for fast integration into applications, analysis pipelines, and live investor tools.

Fintech dashboards

Embed historical prices and 100-day forward forecasts directly into portfolio trackers and watchlist applications.

Research & screening tools

Combine decades of historical close data with model predictions to backtest ideas and screen market opportunities.

Crypto trackers

Access 6,700+ cryptocurrencies using the exact same clean REST endpoints as traditional equities.

Prototypes & MVPs

Start immediately with our free tier offering 100 calls/day, zero credit card required, and keyless symbol search.

PRICING

Start free. Scale when you need to.

Simple, transparent pricing with no hidden fees or per-call surcharges.

Free

€0 /mo
  • Unlimited keyless symbol search
  • 100 API calls/day (history & predictions)
  • Interactive charts & daily accuracy
  • No credit card required
Explore Free

Enterprise

Custom
  • Everything in Pro
  • Unlimited API calls
  • Priority email & Slack support
  • Custom integrations & SLA
  • Volume discounts
Contact Us
FREQUENTLY ASKED QUESTIONS

Questions developers ask before integrating.

What is BAKO API?

BAKO API is a financial data API that provides historical prices and ML-powered price predictions for 40,000+ stocks, ETFs, and cryptocurrencies through a simple REST API.

Do I need an API key to try it?

No. The /v1/symbols endpoint is free and needs no key. You can also generate a free API key in the dashboard for 100 calls/day on history and predictions with no credit card required. Pro unlocks 10,000 calls/day.

How accurate are the predictions?

Accuracy varies by market conditions. We publish yesterday's, 30-day, and all-time accuracy daily on this page, so you can judge the model on real evidence. See "How We Calculate Prediction Accuracy" above for the calculation.

How many API calls do I get?

Free: 100 API calls/day (history & predictions) with a free API key, plus unlimited symbol search. Pro (€20/mo): 10,000 API calls/day. Enterprise: unlimited. Usage resets at midnight UTC.

Which programming languages can I use?

Any language that can make an HTTP request. The docs include copy-paste examples in cURL, Python, and JavaScript.

Is BAKO API financial advice?

No. BAKO API provides market data and model outputs for informational purposes only. It is not financial advice. Past performance does not guarantee future results.

Start building with BAKO API.

Explore the docs, try the free tier, and make your first call in under five minutes.

Built on

Firebase Tiingo Vertex AI Chart.js Stripe