Vesper quotes BTC on Perpl and mirrors every fill with an opposite trade on Ondo. You end up long on one venue and short the same size on the other, so the market can go wherever it likes — while open interest and volume build on both books at once.
Ten-minute setup · two exchanges · non-custodial · keys can never withdraw
A real run. Perpl long +0.00251 BTC, Ondo short −0.00250 BTC, net delta ≈ neutral. The clock counts down the hold, then the pair unwinds and re-enters.
On Perpl the bot behaves like a market maker: it posts buy and sell orders and waits for someone to trade against them. Every time an order fills, it has taken on a position — and a position means risk if the price moves.
So within a fraction of a second it opens the exact opposite position on Ondo. Long here, short there, same size. Add them together and you're holding nothing — the two cancel out. In the run above the two legs differ by 0.00001 BTC, which is simply the smallest step Ondo allows.
Why bother holding nothing? Because both exchanges still count you as an active trader with an open position. Your volume and open interest keep building on both venues — and you are not betting on the chart to get it.
After a while (you choose the range) the bot closes both legs and starts a fresh cycle.
⚑ Both exchanges are referral-gated — this is not optional
Vesper only trades accounts that were created through our referral on each venue. If you already have a Perpl or Ondo account that came from somewhere else, it will not pass — you'd need a fresh one made through the links below. Check this first, before you fund anything.
A Perpl account created through our invite. Use
this link — code
jGh4C1kNRTW is applied for you. The same link sits on the Connect page.
Then create a trade API key at app.perpl.xyz/apikeys and keep the key and secret handy — you'll paste them once.
An Ondo account created with our referral code 867C4M.
Sign up on Ondo with that code first.
No API key to copy here: on the Connect page you sign one message with your wallet and Vesper mints a trade-only key for you. That same step is where your referral is verified — if the code on your Ondo account isn't ours, the key is never created and you'll be asked to sign up again.
Money on both exchanges. This mode holds two positions at once, so both sides need funding. Vesper sizes on the smaller of your two balances — a large Perpl balance next to an empty Ondo account gets you nowhere.
Quotes start at $15, so fund each side comfortably above that. The session in the screenshots runs on $72 on Perpl and $105 on Ondo.
Your wallet signs every action. The operator never holds custody, and both venue keys are trade-only — they cannot withdraw your funds, and you can revoke them whenever you want.
Go to sypherscore.com/vesper/connect, choose the Perpl venue and connect your wallet. Paste your Perpl API key and secret — they're checked on the spot, and your balance appears when they're accepted.
The venue picker. Ondo is marked invite · SIWE — that's the signature step, not another API key to copy.
On the same page switch to Ondo and sign the message your wallet shows. Vesper
logs into Ondo as you, checks that your account carries referral code 867C4M, and
creates a trade-only key. Nothing is copied by hand and no password is ever involved.
If Ondo answers that the desk is invite-only, your account simply wasn't created with our code. Make one that is, then come back to this step.
In Settings, keep the venue on Perpl and select the Delta-neutral (Ondo) card — the one tagged HEDGED · ONDO. This is the new mode; the older Delta-neutral card hedges on Lighter instead and is a different setup entirely.
Then pick your market — BTC is the default and the deepest book.
Hold time — each cycle keeps the pair open for a random stretch inside your Min–Max range, then unwinds and re-enters. A fresh number is rolled every cycle, so your activity doesn't look mechanical. Anything from a minute to a day works; 30–50 minutes is a sane starting point.
Margin — tap tap to load balance and both balances appear side by side. Buying power is your margin times leverage. Because the two legs cancel each other out, leverage here is far less scary than it looks on a one-sided position — but it still multiplies fees, so start modest.
Both balances in one line — perpl $72.02 · Ondo $105.53 — so you can see straight away which leg is the limiting one.
Back on the dashboard, hit Start Vesper and sign. The status flips to ACTIVE · making · neutral_ondo and the first cycle opens both legs. Account equity now reads the two venues combined — Perpl $57 + Ondo $106 in the screenshot above — one number for the whole position.
Your two legs side by side. Perpl long, Ondo
short, and NET DELTA ≈ neutral between them. That word is the whole point — it means
the market moving doesn't move your money.
The countdown to the end of this cycle. When it hits zero both legs close and a new pair opens.
HEDGE 307MS — how long the second leg took to
follow the first. Small numbers mean you were exposed for a blink and nothing more.
What you've traded since launch. This is the number the venues count.
Your true cost per million traded — fees minus what you earned back. It's how you compare settings honestly instead of guessing.
Every run stored and grouped, with an Excel export and a shareable card.
Don't deposit or withdraw on either venue while a session runs. The stop-loss remembers your combined equity at the start, so money leaving looks exactly like a loss and can flatten the pair.
Stop closes both legs and is global — once you stop, only your own signature can start a new session.
If a venue key expires, nothing is lost. The bot pauses instead of abandoning the position, keeps your legs as they are, and the dashboard shows a banner asking you to reconnect. It resumes on its own within minutes of a valid key landing.
Maintenance is seamless: your counters stay anchored to the real launch time and sessions come back by themselves. A running bot never silently disappears.
Access is referral-only — Perpl invite jGh4C1kNRTW ·
Ondo code 867C4M