Propr API Trading: One REST API for All Your Propr Accounts

Category: API | Date: 2026-11-03

Why Use Our API for Propr

Propr has its own API, one key per account. If you run a bot across several Propr accounts, Signal Trade App gives you one REST API and one key for all of them, and the copy engine sends each leader fill to your followers, so your bot only has to trade one account.

Authentication

Create an API key in Signal Trade App under <strong>API Keys</strong> and send it in the <code>X-API-Key</code> header. Base URL: <code>https://signaltradeapp.com/api/v1</code>.

Main Endpoints

Call	What it does
<code>GET /accounts</code>	Your connected accounts, Propr included
<code>GET /accounts/{id}/positions</code>	Open positions
<code>POST /accounts/{id}/orders</code>	Place an order (market or limit; optional take profit and stop loss)
<code>PUT /accounts/{id}/orders/{orderId}</code>	Change a working order’s price
<code>DELETE /accounts/{id}/orders/{orderId}</code>	Cancel an order
<code>POST /accounts/{id}/positions/close</code>	Close one market
<code>DELETE /accounts/{id}/positions</code>	Flatten the account

Example: Market Buy With a Bracket

<code>curl -X POST https://signaltradeapp.com/api/v1/accounts/ACCOUNT_ID/orders -H "X-API-Key: YOUR_KEY" -H "Content-Type: application/json" -d '{"symbol":"ETH","action":"Buy","qty":1,"orderType":"Market","takeProfit":4400,"stopLoss":4100}'</code>

Propr Specifics

Propr has no modify call, so changing an order’s price replaces it: the old order is cancelled and a new one placed. The response gives the new order id.
Stop orders can only protect an open position.
Orders on one account and market are sent one at a time, so a fast reversal never races itself.
If Propr refuses an order (margin, minimum size), the API returns 422 with Propr’s reason.

Full reference with every field: API docs. To trade from alerts instead, see TradingView to Propr.

Frequently Asked Questions

Does Signal Trade App have an API for Propr?

Yes. The same REST API used for Tradovate and Rithmic works for connected Propr accounts, with one X-API-Key for all of them.

Can I modify a Propr order through the API?

Yes. Propr has no modify call, so the order is replaced and the response carries the new order id.

Will API orders on the leader copy to my other Propr accounts?

Yes. Fills on a leader are copied to its followers wherever the order came from.

Start Copy Trading Free

Signal Trade App lets you copy one trade across unlimited prop firm accounts in under 50ms. Sign up free with a 5-day Pro trial (credit card required, no charge during trial).