Extended, a Starknet-based perpetuals DEX, needed to solve a problem every cross-chain protocol faces: onboarding friction kills conversion .
Their users expected instant access to markets. But traditional bridging meant 3-5 wallet interactions per deposit. Every extra click created drop-off risk, especially for large transactions that hit liquidity limits or required manual vault deposits.
The result? Extended partnered with Rhino.fi to build the first programmable, compliance-ready onboarding flow with Rhino.fi's new Post-Bridge-Actions feature. Here's what that looks like in practice.
The Problem: Bridging ≠ Onboarding Before Rhino.fi, getting funds into Extended meant:
Traditional Flow (5 steps, ~15 minutes):
User initiates bridge from source chain
Confirms transaction in wallet (pays gas #1)
Waits for bridge confirmation (2-10 min)
Manually deposits to Extended vault
Confirms deposit in wallet (pays gas #2)
Result: High drop-off, support overhead, frustrated users on failed large deposits.
The Solution: Bridge + Settlement in One Action With Rhino.fi's post-bridge actions (now live), Extended collapsed the entire flow:
New Flow (1 step, usually <60 seconds):
User clicks "Deposit" → Funds arrive in vault, ready to trade
Here's how it works behind the scenes:
What's happening:
Liquidity routing: Rhino automatically splits large deposits across multiple bridges (CCTP, Stargate, etc.) to avoid protocol limits
Post-bridge action: Once funds land on Starknet, Rhino's hook calls Extended's vault contract directly, no user action required
Compliance screening: Every transaction is automatically checked against AML/KYT databases before execution
Auto-rebalancing: Rhino maintains liquidity across all chains within 30 minutes, ensuring 24/7 uptime
What Extended Gets (That Bridges Alone Don't Offer) Liquidity depth and auto-rebalancing across all major chainsTechnical: Multi-hop routing with parallel execution and on-chain merging
In practice: A $4.99M USDC deposit from Ethereum is automatically split into optimal chunks, bridged in parallel, and recombined in the user's Starknet vault as a single balance.
Why it matters: No more "deposit failed: insufficient liquidity" errors. Enterprise-grade reliability for large-volume transactions.
2. Programmable post-bridge settlement to trigger smart-contract actions on arrivalTechnical: Post-bridge actions execute arbitrary smart contract calls on destination chain.
In practice: Funds don't just arrive, they're automatically deposited into trading vaults, credited to accounts, or converted to collateral. All in one atomic flow.
Why it matters: Users start trading in seconds. No manual deposit step = no drop-off between bridge and platform.
3. Compliance by Default Technical: Integrated KYT/AML screening via TRM Labs.
In practice: Every cross-chain transaction is automatically screened before execution. Flagged addresses are blocked pre-flight.
Why it matters: Enterprise-grade protection without building your own compliance infrastructure.
4. Future-Proof Upgrades Technical: When CCTP or other network upgrades launch on new chains (like Starknet), they’re automatically integrated via the Rhino API with no extra work or downtime for clients.
In practice: Extended gets access to new routes with zero engineering work or downtime.
Why it matters: Your team focuses on core features, not bridge infrastructure monitoring.
Results: $325M+ Processed in 60 seconds or less Metric
Value
Total Volume Processed
$325M+ (post-migration)
Largest Single Deposit
$4.99M (Ethereum → Starknet) in 3 min
Average Completion Time
<60 seconds
Top Source Chains
Arbitrum, Ethereum, Starknet
Impact: Extended now handles institutional-sized deposits with the same UX simplicity as a $100 bridge.
Or in the words of Ruslan, CEO of Extended: "Rhino.fi is a reliable, responsive and fast moving team that helped us secure >$100M in TVL in a couple of months".
What's Next: Expanding Action Capabilities Extended's deployment is the first production use of Rhino.fi's post-bridge actions. The infrastructure is now available to any company, with upcoming features including:
Automated yield strategies: Route into Aave, Morpho, or staking contracts on your settlement chain instantly
Credit events & accounting webhooks: Trigger off-chain systems when on-chain settlement completes
Multi-step workflows: Chain multiple contract calls (SDA → swap → deposit → stake) in one bridge action
Why This Matters Beyond Extended Every company with cross-chain users faces the same core problems:
Conversion drop-off: 30-50% of users abandon multi-step onboarding flows
Support overhead: "Where are my funds?" tickets dominate support queues
Liquidity fragmentation: Users spread across chains can't access full platform features
Compliance gaps: DIY bridge integrations lack enterprise-grade AML/KYT screening
Rhino.fi's approach solves all four by treating bridging as part of onboarding, not a separate step.
Use cases beyond DEXs:
Payment companies needing multi-chain settlement and instant crediting
Remittance providers wanting single-click multi-chain cross-border transfers
Neobanks auto-depositing bridged assets into user accounts
Web3 wallets crediting balances on bridge arrival
Ready to Eliminate Onboarding Friction? Extended reduced their onboarding flow from 5 steps to 1, processed $224M+ and freed their team from liquidity management.
Book a technical demo to discuss:
Custom post-bridge action implementations for your platform
Large transaction routing strategies (up to $5M+ per transaction)
Sponsored fee structures
Compliance requirements & KYT/AML integration
Schedule Demo below → or email partnerships@rhino.fi
