Alpaca
Trade stocks, options up to 4 legs and crypto spot at Alpaca, on a paper or a live account, using an API key you generate yourself.
The Alpaca setup guide has every step to connect.

Order types
Market and limit orders, for entries and exits. A spread goes as one order for all its legs: at a limit, it's priced as a net debit or credit. Nyria doesn't place stop or stop-limit orders. Exits come from exit alerts.
Stock orders take the strategy's Duration as set: Day, Good till canceled or Fill or kill. Alpaca takes option orders as Day only and crypto orders as Good till canceled, so Nyria sends those whatever the strategy is set to.
Position sizing
- Stocks: whole shares
- Crypto: fractional quantities. A $100 entry with BTC at $64,000 buys 0.00156 BTC.
Margin
Alpaca offers cash and margin accounts and sets the margin rules. Leave buying power for exits as well as entries.
Limitations
- US equities only (no international stocks)
Troubleshooting
"Symbol not found"
Alpaca doesn't trade that symbol. Check the spelling, and check Alpaca lists it as tradable: some OTC stocks aren't.
"Market closed"
Alpaca restricts some order types outside market hours. Turn on Limit trading hours on the strategy to keep entries inside them.
Next steps
Connect tastytrade to Nyria
Connect tastytrade by signing in: account selection and option spreads up to 4 legs. Its API has crypto trading disabled since 29 June 2026.
Connect Alpaca to Nyria
Connect an Alpaca paper or live account by API key, check it, then send a first single-leg or multi-leg options test order.