SYNAPSEGet the call when it fires, not after.
Members get the engine's call on SPX all session, in five plain words, and a TRADE alert the moment it buys. The same trade posts on X 15 minutes later. Every member gets the identical call at the identical moment.
13 of 25 seats left · closes Oct 31
One point on an SPX option is $100 a contract. Signal costs about two points a month; a founding seat, about one.
The engine's call all session, and a TRADE alert the moment it buys.
- The engine's call on SPX all session: CALL, PUT or CHOP, with a strength meter
- A strength meter on every call: how big and how clean the move is, never a probability
- A TRADE alert the moment the engine buys: side, strike relative to the money, exit rule, 15 minutes before it posts on X
- Every call and trade drawn on the SPX chart, with classic chart patterns as they form
- Prior-day, overnight, VWAP and round-number levels, plus Strat, ICT, ORB, EMA and AMT systems to compare
- Browser alerts while your desk is open
- Phone alerts in the members-only Synapse Discord: each new call and every trade, next to the members' chat
- Every past session, charted with its calls
Everything in Signal, plus the API, webhooks and an MCP server for your own code and AI agents.
- Everything in Signal
- API: every call, stand-down and reasoning trace, as a live stream or REST catch-up
- Signed webhooks that push each call to your own code as it fires
- An MCP server, so Claude and other AI agents can read the engine's calls and reasoning
What a session looks like.
The most recent completed session, straight from the engine's record: every read, and the call or the stand-down with the gate that decided it.
What Synapse does, and doesn't.
Why $199 a month?
One point on an SPX option is $100 a contract. Signal costs about two points a month. Members get the engine's call all session and each trade the moment it buys; the same trade posts on X 15 minutes later. A founding seat halves the price for 12 months while seats last.
If it works, why sell it instead of just trading it?
We do trade it, and you'll be able to watch. Starting Tuesday, October 6, the engine trades its own live XSP account, $2,500 to start. Members see that account's P&L every day, trade by trade, and everyone gets a weekly summary on the site. We publish the calls too, for three reasons. It pays out unevenly: most sessions it stands down, some calls lose, and losing streaks happen (see Bad stretches), so living off it takes a large account and a long runway, and subscriptions pay for the data, servers and research while the account grows. Publishing doesn't wear it out: SPX same-day options trade about 2.4 million contracts a day (Cboe, August 2025), and members' orders are a rounding error next to that. And publishing every call and every stand-down the moment it happens is the strongest check we have on ourselves.
Does Synapse trade my account?
No. Synapse never sees your account, holds your keys, or places orders. Whether to act on anything it publishes is your own decision.
Does it tell me how much to trade?
No. Every member gets the same call at the same moment. Sizing is yours.
What does it trade?
Same-day (0DTE) S&P 500 index options: SPXW, with XSP as the smaller contract. Every call comes with its exit rule.
What's the difference between a call and a trade?
The call is the engine's read of SPX, all session, in five words. It describes the market and carries no trade. A trade is the engine buying: Peregrine, Synapse's directional strategy, takes at most one a day, and every member gets a TRADE alert when it does. Phoenix, its butterfly strategy, runs on the engine's own book and is not in the alerts.
How often does it trade?
Only when every check passes: 204 trades over 2022 to mid-2026 in the walk-forward backtest, about one session in five. Most days it doesn't trade and you won't hear from it. The call runs all session, every session.
Can I get alerts on my phone?
Yes, through Discord. Calls post in the members-only Synapse Discord as they fire, so Discord's notifications reach your phone, and members trade notes in the chat there. Anyone can join the server and look around; the alerts channel and the chat open once you subscribe.
Does an AI pick the trades?
No. Every call comes from fixed gates and an entry model, the same way every session. A language model now reviews each day's call as a second opinion we are testing in shadow: it cannot place, size or block a call, and it earns no role unless a test written down in advance says it should.
How do I start?
Click Try 7 trading days free on Signal or Desk and finish on our secure checkout, run by Stripe ($0 today). Then sign in with the same email.
Is there an API?
Yes, on Desk: every call, stand-down and reasoning trace as a REST API, a live stream and signed webhooks, plus an MCP server so Claude and other AI agents can read them. You make your own key on the desk after you sign in. See what it returns.
Is there a free trial?
Yes. Both plans start with 7 trading days free: weekends and market holidays don't count, so starting on a Friday costs you nothing. Some checkouts save a card and don't charge it until the trial ends; others start with no card at all. Either way it's $0 today, and if you cancel before the trial ends you pay nothing.
Can I cancel?
Yes. Plans are monthly and cancel anytime from synapseengine.ai/billing; you keep access to the end of the period you paid for.
Can I get a refund?
Payments aren't refundable, including for partial months, except where the law requires otherwise. If we end your subscription for any reason other than a breach of the Terms, we refund the unused part. The refunds page has the details, and the support page has how to reach us.