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A German-language full-text library and historical reference

Stock images, public-domain art and editable design resources

Keep product choices, stock combinations and supplier records distinct

Alternative data analytics and AI stock tools for investors.

Replay recorded executions alongside a trading journal

Browse crypto prices or use a public API without a developer key

Build event-driven market simulations with a shared strategy engine

Track crypto markets and build a portfolio from the quantities you hold

Free crypto market research with clearly separated API data licenses

Find economic time series by release, source or category

Replay historical markets across charts and depth-of-market views

Research options in a browser or build on licensed historical datasets

Retrieve current, forecast, and historical weather data in a single coordinate-based request.

Turn results from supported test frameworks into interactive reports with history, steps and failure context.

Collects and exposes resource-usage data for containers running on a host.

Compare strategy experiments across assets, parameters and historical periods

Research and backtest quantitative strategies in notebooks and code

Compare DeFi protocols with defined metrics and historical data

Variable display experiments and Polish type revivals with stories behind the forms.

Compare crypto futures activity and retrieve limited historical series

Develop and compare trading strategies in a Windows backtesting workspace

Interpret options sweeps and equity prints, with new subscriptions currently paused

Compare options history with the risks of current positions

Collect market history and test several strategies in one portfolio