Learn · updated 31 Oct 2026
A kill switch for trading bots that actually stops them
A kill switch should stop the bot at the point of signing, not ask the bot to stop. In Nevarn one action halts all signing on an account, effective on the next request — not a support ticket. Every order proposed after that is refused and recorded, and revoking a permission deletes the material that could sign.
Stop the signature, not the script
A strategy asked to stop may be mid-loop, restarted by a supervisor, or running on a machine nobody remembers. A halt at the signer holds whatever the strategy process is doing: no signature, no transaction.
That is why Nevarn's halt sits on the account rather than on any one bot. It stops every lane at once, including the ones you were not watching.
What the halt does in Nevarn
One action halts all signing on the account, effective on the next request. Orders proposed while the halt is on are refused, and each refusal is recorded with its reason, so the books show what was stopped as clearly as what went through.
Separately, only the customer installs a permission and only the customer can remove it. Once revoked, the customer's own account refuses Nevarn's signature regardless of what Nevarn's records say.
An outage stops trading too
Every live order in the gated lane needs an explicit proceed ruling from the execution authority. If the authority cannot be reached, the order is not placed: an outage fails the same way a halt does, closed.
Questions people ask
How does a customer stop Nevarn?
One action halts all signing on the account, effective on the next request — not a support ticket. Separately, only the customer can remove a permission, and once revoked their account refuses Nevarn's signature regardless of what Nevarn's records say.
What happens if Nevarn's decision service goes down?
Trades are refused. Every live buy order in the gated lane needs an explicit proceed ruling from Decionis, a separate execution authority; if that authority cannot be reached, the order is not placed. An outage stops trading rather than removing the guardrail.
Can I try the halt without an account?
Yes. In the sandbox at nevarn.com/sandbox, flip the halt and propose any order: it is refused on the next proposal, and the refusal lands in the book. The sandbox runs in your browser; no funds move and no venue is connected.