ALPACA
OTO · bracket
One-triggers-other: the entry fill arms the stop. The bracket adds the target. A helmsman_… client id so you can trace what left from here, not from an impulsive click on the tape.
Orders
Every venue has a grammar. Helmsman speaks it; it does not fake it. Alpaca is not Tradier. OTOCO is not a bracket. SIMPLE does not leave. Ever.
The course stays yours
A naked market is fast only until the fill. Then you are uncovered. Helmsman refuses SIMPLE. On Alpaca it sends OTO or a bracket: the entry and the stop are born together. On Tradier it sends OTOCO: entry, stop and target in the same payload. The name is different. The veto is the same.
If a future adapter cannot offer an honest covered class, it does not open on that venue. We do not «make it work» with two detached orders and a hope. Two detached orders are two chances to stay naked.
ALPACA
One-triggers-other: the entry fill arms the stop. The bracket adds the target. A helmsman_… client id so you can trace what left from here, not from an impulsive click on the tape.
TRADIER
One-triggers-one-cancels-the-other: stop and target in the same form. A sanitised tag, no underscores. Pasting Alpaca’s JSON here means opening naked. So we do not paste it.
Saxo, Schwab, Directa, tastytrade: each has its brackets, its OCO, its session clock. Helmsman will not pretend they are Alpaca. It will carry a new engagement card. Fineco and DEGIRO have no retail trading API: the bridge does not start there. You will still say yes to the same line.
Multi-broker slides · only venues whose APIs the model can speak
Marks belong to their owners: they name the venues, they do not imply a partnership. Gold = adapter already in code. The slide shows only retail APIs that fit. Fineco, DEGIRO, Robinhood and the rest without an official trading API stay off it.
We are in early access. Skills and adapters are moving fast: you can pre-register.
Pre-registerPass-through
Helmsman is middleware: it translates, vetoes, forwards. The LLM proposes. You confirm. The broker — on your account — is the final executor.
Not us
Claude or another third-party model can hallucinate, botch the numbers, invent a name. That call is not Helmsman.
This is us
Routing, rules, covers. If the stop is missing, if size moved, if you did not say yes — the pipe closes. We do not hold your book.
Final executor
Alpaca, Tradier, or the venue you connect. If an order exists, it exists on their book. Helmsman is not your intermediary and not your bank.
If the order exists, it exists on your account, after your yes. Helmsman is the pipe. Not the captain. Not the till.
We are in early access. Skills and broker adapters are moving fast. You can pre-register: not a self-serve paper switch.
Pre-register