FlashDex
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Automated DeFi arbitrage

Price gaps close in milliseconds.
So does FlashDex.

An automated engine that scans decentralised markets, borrows liquidity through flash loans, and settles arbitrage inside a single atomic transaction — across seven chains, with no capital locked up mid-trade.

Log in Watch a transaction How it works
Chains covered
7
Liquidity sources
5
Blocks to settle
1
Collateral posted
0
01The product

The scanner, mid-flight.

Every candidate spread on every connected venue, ranked by net outcome after fees and gas. When one clears the threshold the engine borrows, executes both legs and repays inside a single transaction.

app.flashdex.io/scanner Product preview · sample data

Opportunity scanner

Scanning
7 chains 14 venues
Pairs monitored
1,284
Open opportunities
5
Median spread
0.28%
Captured (24h)
$41,208
PairRouteBuySell SpreadSizeEst. netStatus
EUETH / USDC Uniswap v3 → PancakeSwap 3,000.00 3,030.00 1.00% $1,000,000 +$10,000 Ready
WTWBTC / USDT Balancer → Uniswap v3 64,120.00 64,389.30 0.42% $640,000 +$2,688 Ready
AUARB / USDC Camelot → Uniswap v3 0.8412 0.8438 0.31% $180,000 +$558 Ready
MTMATIC / USDT QuickSwap → PancakeSwap 0.4180 0.4190 0.24% $320,000 +$768 Watching
AUAVAX / USDC Trader Joe → Uniswap v3 27.140 27.192 0.19% $95,000 +$180 Watching
Executing ETH / USDC · $1,000,000 · Aave flash loan —
Step 01 · Borrow

Draw principal from the pool. No collateral posted.

Step 02 · Execute

Buy the low leg, sell the high leg, same block.

Step 03 · Repay

Principal plus protocol fee returns to the pool.

Step 04 · Settle

Residual is booked. Any failure reverts the whole call.

Product preview. Sample data shown for illustration. Figures are not live quotes and not a projection of results — spreads, size and net vary with market conditions, liquidity, slippage, fees and gas.

02The shift

Markets moved on. The plumbing changed.

Traditional finance routes every trade through intermediaries that keep business hours. Decentralised finance replaced them with smart contracts that settle continuously and publicly. FlashDex automates advanced trading strategies inside that second system.

Traditional finance

  • Banks & intermediaries
  • Business hours only
  • Centralised control
  • Slow settlement
  • Limited transparency

Decentralised finance

  • Smart contracts
  • 24/7 global markets
  • Automated execution
  • Instant settlement
  • Transparent blockchain

DEXs & liquidity pools

Order matching and depth held in on-chain pools rather than a central book.

Lending protocols

Over-collateralised markets that also expose uncollateralised flash liquidity.

Stablecoins & yield farms

The settlement units and incentive layers the strategies price against.

Flash loans & bridges

Atomic borrowing, and the interoperability rails that make cross-chain possible.

03Flash loans

Borrow a million dollars for one block.

A flash loan lets a smart contract draw liquidity from a decentralised protocol with no collateral — on the condition that borrowing, execution and full repayment all complete inside a single transaction. If any step fails, the whole transaction reverts and no state change is written on-chain.

Primary uses — arbitrage, refinancing, collateral swaps, liquidations, liquidity optimisation

Step 01

Borrow

Liquidity is drawn from a lending pool with no collateral posted.

Step 02

Execute

The strategy runs — buy, route, swap, sell — in the same transaction.

Step 03

Repay

Principal plus protocol fee returns to the pool before the block closes.

Step 04

Complete

Whatever remains after repayment is the captured differential.

04Liquidity sources

Where the liquidity comes from.

FlashDex holds no float of its own. Every position is opened with liquidity drawn from established DeFi protocols for the length of one transaction, then returned in the same block.

Per-transaction flow
Drawn from pooled liquidity
$1,000,000
Returned to the pool
−$1,000,000
Protocol fee
Paid in-block
Held by FlashDex afterwards
$0
Custody of user fundsNone

Aave

Flash-loan originator

The primary source of uncollateralised flash liquidity. Funds are released and repaid inside the same transaction, or the call reverts.

Balancer

Vault liquidity

Weighted and stable pools accessed through vault-level accounting, giving multi-asset flash liquidity in one call.

Uniswap pools

Execution venue

Deep on-chain spot depth across Ethereum and its L2s. Carries the buy and sell legs where routing favours it.

PancakeSwap pools

Execution venue

BNB Chain depth. Extends coverage and routing options beyond the Ethereum ecosystem.

Additional DeFi sources

Extensible

Further pooled venues are integrated as their depth, fee structure and reliability qualify them. The engine routes to whichever source prices the position best at the moment of execution.

05Arbitrage

The same asset, two prices.

Arbitrage captures the difference in price for one digital asset across multiple markets — executing both sides before the prices converge and the window closes.

Exchange A
Buy price
$1.24
Gap $0.08
Exchange B
Sell price
$1.32

Why price gaps exist

  • 01Varying liquidity depths
  • 02Independent trading volume
  • 03User demand imbalances
  • 04Network congestion
  • 05Isolated liquidity pools

Four strategies

Cross-DEX

Buy and sell the same asset across two DEXs on the same blockchain.

Cross-chain

Capture gaps across Ethereum, BNB Chain, Polygon and other networks via bridges.

Triangular

Route trades through three assets on one exchange to exploit internal pricing.

Statistical

Models detect temporary anomalies before mean reversion closes the spread.

06Cross-chain

Seven networks, one price surface.

Price differences across Ethereum, BNB Chain, Polygon, Avalanche, Arbitrum, Base and Optimism create systematic capture opportunities.

EthereumBNB ChainPolygon AvalancheArbitrumBaseOptimism
  • 01Monitor asset prices across chains
  • 02Evaluate bridge availability and costs
  • 03Execute synchronised buy / sell strategies
  • 04Optimise timing for maximum capture

Cross-chain arbitrage executes over interoperability infrastructure, with additional settlement considerations compared with same-chain arbitrage.

07The engine

Seven stages, no hands on the wheel.

Every stage executes autonomously. There is no manual intervention between detection and settlement — the window is too short for one.

01

Market scanner

Continuous price observation across connected DEXs and chains.

Observe
02

Opportunity detection

Candidate spreads are isolated and measured against cost of execution.

Evaluate
03

Flash loan access

Liquidity is drawn from Aave, Balancer or pooled DEX sources for the transaction.

Borrow
04

DEX execution

Both legs of the trade are routed and submitted inside the same block.

Execute
05

Settlement

Principal and protocol fee are returned; the transaction is finalised or reverted.

Repay
06

Profit calculation

The residual after repayment, gas and slippage is accounted to the position.

Account
07

Transaction complete

State is written on-chain and the scanner returns to observation.

Close
08Worked example

Arbitrage in action

ETH quoted at $3,000 on Exchange A and $3,030 on Exchange B. $1,000,000 of liquidity is accessed via flash loan, then bought, transferred, sold and repaid inside one transaction.

$1,000,000Buy position
−$1,000,000Transfer
$1,030,000Sell proceeds
−$1,000,000Loan repayment
$30,000Profit
09Capabilities

What the platform actually does

Intelligent opportunity scanner

Continuous observation across connected venues and chains.

Smart contract automation

Strategy logic committed to code, executed without operator input.

Multi-DEX integration

Routing across multiple decentralised exchanges and pooled sources.

Advanced risk controls

Cost, slippage and revert conditions evaluated before submission.

Real-time market analytics

Spread and depth measurement feeding the detection stage.

Automated execution engine

Seven-stage pipeline from detection through settlement.

Scalable architecture

Designed to add venues and networks without reworking the core.

Secure blockchain infrastructure

Atomic settlement; no custody of user keys or seed phrases.

10Ecosystem

One system, eight components

Flash loans, DEX integrations, bridges and analytics all operate inside a single automated platform.

Flash loans
Liquidity providers
DEXs
Bridges
Smart contracts
Analytics
Users
Rewards
11Terms

Terms & conditions

Financial terms

  • 10% platform fee applies on all withdrawals
  • All deposits and withdrawals in USDT only
  • Minimum withdrawal is $5

User responsibilities

Users are responsible for complying with all applicable laws, regulations, tax obligations and digital asset requirements in their jurisdiction.

Privacy & security

FlashDex does not collect, store or sell personal or financial information beyond what is technically required to facilitate blockchain transactions and platform functionality. Users remain responsible for safeguarding their wallet credentials. FlashDex never requests or stores private keys or seed phrases.

Intelligent liquidity.
Precision execution.

Built for the future of decentralised finance.

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