Alpaca vs Kraken vs Coinbase: API access and paper/sandbox trading compared for EU users
Picking a broker or exchange for an automated trading setup in the EU comes down to two practical questions before anything else: can you actually get an account there, and can you test a strategy against live data without risking real money first.
Alpaca
Alpaca completed EEA passporting to 29 countries in 2026 through its Spain-registered European entity (CNMV-authorized, operating under the MiFID II framework) — EU residents, including in countries like the Czech Republic, can now access it. Its European arm grew out of an acquisition (WealthKernel) and launched with European equities access starting on Germany's Xetra exchange, with more venues (Euronext, London Stock Exchange) rolling out after. Alpaca's US arm is well known for free retail paper trading; the newer European entity is younger and, as of this writing, reads more like infrastructure aimed at fintech partners building products on top of it than a simple self-serve retail signup with instant paper trading — worth confirming directly before assuming the same frictionless signup the US product is known for.
Kraken
Kraken is confirmed available to EU residents, including Czech Republic specifically, and lists support for 7 fiat currencies alongside crypto-fiat trading pairs. Its institutional API supports building custom trading bots and automated strategies directly. Kraken doesn't offer an official spot-trading paper/demo environment for retail the way some brokers do — its demo environment is specifically for Kraken Futures, not spot trading. For spot strategies, the practical workaround is building your own paper-trading harness against Kraken's free public market-data API (no account or authentication needed for public price data), simulating fills and fees yourself rather than relying on an exchange-provided sandbox.
Coinbase
Coinbase operates in the EU under MiCA-based licensing and offers an Advanced Trade API for programmatic access. Like Kraken, it doesn't provide an official retail paper-trading sandbox for spot trading — the same self-built simulation approach applies if the goal is testing a strategy against live prices before risking real funds.
What this comes down to in practice
For EU users specifically, none of the three currently hands you a frictionless "sign up, get an instant paper-trading account" experience the way Alpaca's original US product does — Alpaca Europe is new and more partner-oriented, and neither Kraken nor Coinbase ship a spot-trading demo mode. The practical path that works everywhere: build a paper-trading harness using free public market data (available from all three, no account needed), and only create an account and go through KYC at the exchange you've settled on once you're actually ready to risk real capital — not before.
Sources: Alpaca's EEA passporting and European entity coverage (2026 company announcements); Kraken's public documentation on fiat currency support, EU/EEA availability, and institutional API; Coinbase's Advanced Trade API documentation and MiCA licensing coverage. This project's own paper-trading system uses exactly the self-built harness approach described above, specifically to avoid depending on any exchange's sandbox availability.