How to Automate Pine Script Alerts via TradersPost on a Prop Firm Account

How the automation chain works

Before touching a single setting, it helps to see the full path a signal travels:

1. The Pine Script strategy runs on TradingView and evaluates entry/exit conditions on every bar close
2. When conditions are met, TradingView fires an alert — a JSON message sent as a webhook
3. TradersPost receives the webhook, parses the action, and places the order at the connected broker
4. The broker (Tradovate or Rithmic) sends the order to the exchange
5. The prop firm account sees a normal order — no different from a manually placed one

Step 1: Load the Pine Script on TradingView

1. Open the chart for the target instrument using a continuous contract symbol — MNQ1!, MES1!, NQ1!, or ES1! — on the strategy's intended timeframe
2. Open Pine Editor at the bottom of the screen
3. Paste the strategy code and replace any placeholder that was already there
4. Click Add to chart — the strategy's signals should appear on the chart

Step 2: Connect TradersPost to a broker

1. Create an account at TradersPost and check current plan tiers, since pricing and promotions change
2. Under Brokers → Add Broker, select Tradovate or Rithmic to match the prop firm, and authorize with the broker's own API credentials
3. Under Strategies → New Strategy, name it clearly, select the broker account, and set the instrument and quantity
4. Save — TradersPost generates a webhook URL in the form https://webhooks.traderspost.io/trading/webhook/<uuid>/<token>. Copy it for the next step

Broker compatibility by prop firm

Step 3: Set up the TradingView alert

1. With the strategy applied to the chart, click the Alerts bell → Create Alert
2. Under Condition, select the strategy name, then Order fills only from the second dropdown
3. Under Notifications, check Webhook URL and paste the TradersPost URL from Step 2
4. In Message, paste the JSON payload TradersPost expects

{
  "ticker": "{{ticker}}",
  "action": "{{strategy.order.action}}",
  "quantity": "{{strategy.order.contracts}}"
}

The {{ }} placeholders are TradingView template variables that expand to real values when the alert fires — never hardcode the ticker or quantity directly.

5. Set Expiration to open-ended so the alert doesn't lapse mid-evaluation
6. Name the alert clearly and click Create

Step 4: Test with paper trading before going live

1. In TradersPost, switch the connected broker account to Paper Trading mode
2. Wait for the next signal and confirm the paper order appears in TradersPost → Orders with the correct ticker, direction, and quantity
3. If nothing appears, check the webhook URL and the alert condition first; if the quantity shows as 0, the JSON message is likely malformed — re-paste it from Step 3
4. Once paper trades track the strategy's signals accurately for a full session, switch back to the live broker account

Prop-firm-specific notes

Apex Trader Funding

Apex has no daily loss limit on the evaluation, but runs intraday trailing drawdown — the floor moves with every new intraday equity peak, enforced independently on Apex's own platform in parallel with whatever kill switch the script carries. On a live funded account, keep the setup semi-automated (a human confirming fills) rather than fully hands-off, since Apex restricts commercial automation to that style there.

Topstep

Topstep's daily loss limit is $1,000 on a 50k account. Configure the script's kill switch around $800 (80% of the limit) to leave room for slippage on the closing exit. TradersPost itself doesn't enforce the daily limit — that check lives in the script and, independently, on Topstep's own platform.

MyFundedFutures

MyFundedFutures runs a $1,250 daily loss limit on a 50k account. Set the kill switch around $1,000 (80% of that limit) so the script halts comfortably before the platform-level limit triggers. MyFundedFutures connects through Tradovate, the same TradersPost setup as Apex.

Tradeify

Tradeify's Growth path runs a soft daily limit rather than a hard published figure, and the Select path has no hard daily loss limit at all — the script's kill switch is still worth keeping as a self-imposed safety net either way. Tradeify connects through Tradovate; the setup is identical to Apex's.

Common mistakes that break the automation

1. Wrong ticker format. Use MNQ1!, not MNQ or /MNQ — a mismatch causes TradersPost to reject the signal silently.
2. Lapsed alert expiration. Even on a paid plan, always set expiry to open-ended. A lapsed alert means missed signals while the evaluation clock keeps running.
3. Hardcoded quantity. Using a fixed number instead of the TradingView placeholder overrides the strategy's own position sizing.
4. Forgetting to exit paper mode. Paper and live accounts look identical in TradersPost's UI — check the selector every session.
5. Alert not set to "order fills only." A condition tied to a price level or indicator value instead of the strategy's fills sends signals at the wrong times or with missing data.

FAQ