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New here? Start with the guide

Market making.
On your account.

Automated perpetual trading on your own exchange account, with mode-specific quoting and exit rules. Funds stay in your account, but trading can lose money.

works on
BTC-PERP · exampleDEMO
Illustrative simulation · fills
Net position
0.000
Volume today
$0
Fills
0
THE VESPER COLLECTION

Your venue. Your mode.

One Vesper. Different ways to make a market. Start with the guide for the venue and mode you want to run.

EntropyEntropyANTH · SNDK

EXITE

Selective by design.

EXITE quotes when its entry conditions hold. Understand the market gates, wallet authorization, session display and verified Stop before trading on Entropy.

Read the guide · EXITE
ArcusArcusArcus · Cypher

Cypher

Built around Arcus.

Learn how Cypher combines entry gates, maker execution and position-aware exits. Connect the correct Arcus account and understand the session controls.

Read the guide · Cypher
QFEXQFEXSNDK-USD · Risk core

QFEX

A clear path to QFEX.

Follow account and API-key setup, distinguish requested order size from account leverage, and learn Risk core and session controls before your first Start.

Read the guide · QFEX

Markets, availability and permissions are shown in the current app. Automation does not remove trading risk.

01 · connect
01connect

Your wallet, read-only first. 

You connect the wallet you already use. At this point Vesper can see the account and nothing else: nothing is signed, nothing can move.

wallet · connected
0x7A3f…9C4e
Can Vesper see your balance?yes
Can it place an order?not yet
Trade permission granted?review first
02sign once

One signature. Trade-only. 

Review the venue-specific authorization for placing and cancelling orders. Do not grant withdrawal access. Check its expiry and revocation controls before signing.

signature request · trade-only key
Place and cancel ordersallowed
Withdrawal accessdo not grant
Revocation controlsreview venue
Permission expirycheck venue
03quoting

It sits on both sides. 

A buy below the price, a sell above it. Quotes adapt to the selected mode, inventory and market conditions. Selective modes can wait instead of quoting continuously.

market depth · BTC-PERP
04filled

Someone takes it. It re-posts. 

A fill changes your inventory. The selected mode then evaluates the next action: quote, wait or work an exit. Fees and execution quality determine the cost of that turnover.

Illustrative simulation · fills
buy64,210.50.04 BTC
sell64,215.00.03 BTC
buy64,208.00.05 BTC
sell64,214.50.02 BTC
05hedged

Hedges aim to reduce exposure. 

Delta-neutral mode attempts to offset filled inventory on a second account. Hedges can be delayed or incomplete, leaving residual exposure and potential losses.

net position · delta-neutral
long leg · RISEx+0.000
short leg · Ondo−0.000
0.000net position example

Before you start, know what you are running.

Market making is a real strategy with real costs. These are the practical guides to execution, inventory and the cost of filled turnover.

How it works

Modes and venues

Costs and alternatives

Questions

What is Vesper?

Vesper is a market-making bot for perpetual futures. It places and adjusts orders on your own exchange account. Filled orders create turnover, but fees, adverse selection and market moves can make trading unprofitable.

What permissions am I giving it?

Vesper uses venue-specific trading authorization. Review the actual permissions, expiry and revocation controls before signing; do not grant withdrawal access. Keeping funds in your account does not protect them from trading losses.

Which strategy should I start with?

Choose the guide for your venue and mode: AURUM on Ondo, EXITE on Entropy, Cypher on Arcus or QFEX setup. Argent, Sniper, Vulcan and paired modes remain different workflows. Check current availability and permissions in the app before starting.

What does it cost?

Read the selected mode’s guide and review the actual wallet authorization before signing. Venue fees, funding and trading risks depend on your account and market.

Do I need to leave my browser open?

The engine runs server-side, so closing a browser is not a Stop request. Monitor the session and use its signed Stop control when you want to end a run. Service or venue interruptions can still affect execution.

What does delta-neutral mean?

A paired mode attempts to offset filled inventory on another account. Delayed or incomplete hedges can leave residual exposure. Separate margin requirements, funding and execution costs remain, and neutrality is not a guarantee of profit.

How do I know a run has stopped?

A signed Stop requests cancellation and flattening. Venue or network problems can delay completion. Confirm the actual position is flat and there are no open orders before treating the run as finished; a button click or closed browser is not proof.

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