Connecting ProjectX to TradersPost: Setup Guide

The ProjectX TradersPost setup process connects a ProjectX-powered futures prop firm account to TradersPost so that webhook signals from TradingView route directly to your orders. The connection uses manual credentials rather than OAuth: you select your prop firm, enter your login email, and supply an API key you generate inside your prop firm platform. Before you begin, though, there is one thing you must confirm first.

ProjectX announced it is winding down its third-party service offering for most partners, with support ending February 28, 2026.¹ That affects a significant portion of the prop firm ecosystem, so verifying your firm's status is not optional. If your firm no longer has an active ProjectX integration, the steps below will not apply to you.

This guide covers everything from confirming your firm's status to sending a test signal, including the limitations you need to plan around before you go live.

Check Your Firm Still Runs ProjectX

ProjectX third-party wind-down

ProjectX informed its prop firm partners that it is ending third-party support for most of them, with the wind-down completing on February 28, 2026.¹ The affected firms include One Top Futures, Trading Lucid, Tradify, Blue Guardian Futures, Tick Tok Trader, and others.² The reason given was that shifts in operational demands and upcoming compliance requirements made continuing third-party support unsustainable.²

After the wind-down, ProjectX effectively became exclusive to Topstep. If you are on any other firm, contact them directly before proceeding to confirm their ProjectX integration is still active.

Topstep remains a confirmed partner

The ProjectX website directs traders who want to continue using the platform to topstep.com/topstepx.¹ Topstep lists ProjectX API Access as an available add-on, billed separately from the Topstep subscription.³ If you are on Topstep, you are in the right place. If you are on any other firm, verify their status with them before purchasing a ProjectX subscription.

What You Need Before You Start

Accounts and subscriptions required

You need three things in place before the connection can work: an active prop firm account with a live ProjectX integration, a separate ProjectX Dashboard account created at dashboard.projectx.com, and an active ProjectX API Access subscription. The subscription costs $29 per month.³ Topstep traders can apply promo code topstep at checkout to receive 50% off, reducing the cost to $14.50 per month.³ Note that billing appears as Sim2Funded Solutions on your bank statement and is managed separately from your Topstep subscription.³

What TradersPost needs from you

The ProjectX connection does not use OAuth. You enter your prop firm selection, your login email, and the API key you generate in the steps below. A few constraints apply to this connection worth knowing upfront:

• ProjectX supports futures only; no other asset classes are routed through this connection.
• Only day order time-in-force is supported.
• Bracket orders are not available, so take profit and stop loss cannot be attached to an entry order.
• ProjectX does not provide market data to TradersPost, so quote-dependent features will not function.

Step 1: Create a ProjectX Account

Register on the ProjectX Dashboard

Go to dashboard.projectx.com and click Register. Enter your email address, create a username and password, then click Create Account.³ If you already have a ProjectX Dashboard account, log in and skip directly to the subscription step.

Subscribe to API Access

Inside the ProjectX Dashboard, navigate to Subscriptions and select ProjectX API Access. Enter your payment details. Topstep traders should enter promo code topstep before confirming to apply the 50% discount.³ Subscribing is necessary but not sufficient on its own: you must also link the subscription to your prop firm profile before an API key can be generated. Skipping the linking step causes a specific error covered in Step 2.

Step 2: Link and Generate Your API Key

Link the subscription to your profile

This step is the one most likely to trip you up. In TopstepX, open Settings, go to the API tab, and click Add Link under ProjectX Linking. Confirm the pop-up to connect your TopstepX profile to the ProjectX Dashboard.³ If you skip this step, Part 4 will fail with the error User lacks subscription.³

After linking, open your ProjectX Dashboard and confirm your account appears there. If it does not appear, disable browser pop-up blockers or open an Incognito Chrome window and refresh the Dashboard.³

Generate and secure your API key

In TopstepX, go to Settings, open the API tab, and click Add API Key. Copy the key immediately and store it somewhere secure.³ Your API key grants full trading access to every eligible account under your profile. Never share it, commit it to a public repository, or paste it into a tool you do not trust. If you suspect the key has been exposed, generate a new one immediately and update every tool using the old key.³

Step 3: Add the Connection in TradersPost

Enter your credentials

In TradersPost, navigate to Connect Broker and select ProjectX from the list of supported connections. Select your prop firm, then enter your login email and the API key generated in Step 2. You will also need to select a mode at connection time: ProjectX supports both paper and live accounts.

Confirm the connection is live

After saving, TradersPost will authenticate with ProjectX using the credentials you provided. A successful connection will show your account name and allow you to view account details. Keep in mind that account balances only update after a position is fully closed, not in real time.⁴ ProjectX does not provide market data through this connection, so quote-dependent features will be unavailable.⁴

Step 4: Create a Strategy and Subscribe

Set up a strategy in TradersPost

Create a new strategy and link it to your TradingView alert as the signal source. Under the strategy subscription settings, attach your ProjectX broker connection and choose the account to trade. Because the ProjectX connection supports only futures, set the asset class to Futures and use explicit contract symbols rather than continuous symbols. TradersPost's rollover schedule may differ from TradingView's, so a symbol like NQ1! can produce rollover mismatches. Use an explicit contract symbol such as MNQU2025 instead.

Configure position sizing

Supported order types through ProjectX are market, limit, stop, and trailing stop. Stop-limit and bracket orders are not supported.⁴ Set a fixed quantity in the webhook payload using the quantity field, or configure sizing in the strategy subscription settings. Because bracket orders are unavailable, all exit logic must be handled separately: use your prop firm's built-in risk parameters where possible, or send independent exit signals through your strategy.

Step 5: Send a Test Signal

Use a paper account first

There is no sandbox environment for ProjectX.³ Use a Practice account through your prop firm instead: it uses the same endpoints and real-time hubs as a live account without putting an Evaluation account at risk.³ Send a webhook payload with "test": true first to verify TradersPost receives and parses the signal without routing an order to the broker. At minimum, include the ticker, action, and quantity fields. Add price using the TradingView {{close}} placeholder to enable slippage tracking.

Verify the signal log

Check the TradersPost signal log to confirm the payload was received, accepted, and an order was submitted. ProjectX does not return an order ID after creation, so order tracking relies on status polling rather than direct lookup. If requests are rejected after initially working, your session token has likely expired. Confirm your client is refreshing its token rather than reusing a stale one.³

Once your test signals are processing correctly on a Practice account, you are ready to connect your live or Evaluation account and trade with real rules in place.

Known Limitations to Plan Around

No market data or P&L from ProjectX

ProjectX does not provide market data to TradersPost, so features that depend on live quotes are unavailable through this connection.⁴ Position P&L data is not available either, and account balances update only after a position is fully closed.⁴ Day is the only time-in-force the ProjectX connection supports; GTC and other durations are not available through it.

No bracket orders; limit order behavior

Bracket orders are not supported, meaning you cannot attach a take profit and stop loss to an entry order in a single submission.⁴ There is also a limit order quirk worth knowing: submitting a limit order with a price greater than the current market price will convert the order to a market order, and it will appear as a market order in your order history rather than a limit order.⁴ To manage exits, send separate exit signals or configure risk parameters directly in your prop firm account settings.

VPS and VPN restrictions

Topstep prohibits the use of VPS, VPNs, and remote servers for any order flow. All trading activity must originate from your personal device, and running automation on a VPS can result in account suspension or removal from the Topstep program.³ A private server may be used for read-only work such as historical data storage, logging, and backtesting, but it cannot place, modify, or cancel orders.³

Bottom Line

• ProjectX wound down its third-party service offering for most prop firms effective February 28, 2026. Topstep remains a confirmed partner.
• The API Access subscription costs $29 per month; Topstep traders pay $14.50 per month with promo code topstep.
• The connection requires a prop firm selection, your login email, and an API key generated inside TopstepX. Linking the subscription to your profile before generating the key is mandatory.
• ProjectX supports futures only, day time-in-force only, and no bracket orders. Plan your exits through separate signals or your prop firm's risk settings.
• Topstep prohibits VPS and VPN use for order flow. All orders must originate from your personal device.

Frequently Asked Questions

Can I use one ProjectX API subscription across multiple accounts?

Yes. One subscription and one API key cover every eligible account under your ProjectX Dashboard profile. A single authenticated session can manage all accounts; you specify the target account on each order.³

What causes the "User lacks subscription" error?

This error means your ProjectX subscription has not been linked to your prop firm profile.³ Go back to your prop firm platform's Settings, open the API tab, complete the linking step under ProjectX Linking, then try generating the key again. If the subscription is active and linked but the error persists, contact [email protected].³

Is there a sandbox or demo environment?

No sandbox environment is available for ProjectX.³ Use a Practice account through your prop firm instead. It runs on the same endpoints and real-time hubs as a live account but does not put an Evaluation account at risk.³

Which prop firms connect through ProjectX?

As of February 2026, ProjectX wound down its third-party service for most partners, with Topstep remaining a confirmed supported firm.¹ A current list of supported prop firms is available on the TradersPost Connections page, but you should also confirm with your firm directly that their integration is still active.

Can I send a take profit or stop loss with my entry?

No. Bracket orders are not supported through the ProjectX connection, so you cannot attach a take profit or stop loss to an entry order.⁴ As a workaround, configure risk parameters directly in your prop firm account settings, or send separate exit signals after your entry fills.

References

¹ ProjectX - Official Website
² Prop Firms Report: Futures Tech Provider ProjectX to End Its "Third-Party Service Offering" - Finance Magnates via TradingView
³ TopstepX API Access - Topstep Help Center
⁴ ProjectX Gateway API Documentation