Rhino Bridge

How Rhino Bridge Works

What is Rhino Bridge and what does it actually do?

Rhino Bridge is rhino.fi's cross-chain infrastructure for transferring tokens between blockchains without using a centralized exchange. It supports same-token bridging and bridge-and-swap transactions that deliver a different asset on the destination chain, with more than 20 networks supported. Rhino Bridge combines its own bridge contracts, cross-chain liquidity, and external swap aggregators to find optimal routes. The bridge is non-custodial — users retain wallet control throughout every transfer.

How does Rhino Bridge move tokens between blockchains?

Rhino Bridge checks whether the chain-token pair is supported and produces a quote containing the amount paid, amount received, fees, estimated duration, and expiration time. After the user commits the quote, tokens are deposited into a Rhino contract on the source chain; Rhino detects the deposit and settles funds from available liquidity on the destination chain. A standard bridge delivers the same token, while bridge-and-swap converts the asset through an external swap aggregator before or after bridging. The completed transfer produces separate source-deposit and destination-withdrawal transaction hashes.

Who runs Rhino Bridge — what happened to DeversiFi and DVF?

Rhino Bridge is operated by Liquidity Labs Holdings Limited, identified in the current rhino.fi terms. The project launched as the StarkEx-based DeversiFi exchange in June 2020 and rebranded to rhino.fi on July 13, 2022, shifting toward multichain bridge services. DVF was DeversiFi's governance token — not another name for the bridge — and Rhino offered eligible holders a 2024 exchange before removing DVF from the market. Cross-chain infrastructure replaced the original DEX as the company's core business.

How to Use Rhino Bridge

How do I use Rhino Bridge step by step?

Connect your wallet, then select the source chain, input token, amount, destination chain, output token, and recipient address. The quote shows the exact amount received, complete fee breakdown, estimated duration, and expiration. If an ERC-20 approval is required, approve the exact spending amount and then sign the separate bridge deposit transaction — Rhino's prepared-bridge flow shows the quote before either signature. Wait for the status to reach EXECUTED, then confirm the destination transaction and wallet balance.

What wallet, gas, and approvals do I need for my first Rhino Bridge transfer?

You need a supported wallet, the token being transferred, and enough native currency on the source chain to pay transaction gas. ERC-20 transfers require a one-time approval transaction followed by the bridge transaction, while native ETH requires no ERC-20 approval. The source and destination must support the same asset for a standard bridge; otherwise, the pair must appear under Rhino Bridge's bridge-and-swap support. Non-EVM destinations such as Solana, StarkNet, TON, and Tron require the correct destination-wallet format.

How do I track a Rhino Bridge transaction or fix a pending transfer?

A committed Rhino Bridge quote provides an ID used to retrieve its state and, once available, its source-deposit and destination-withdrawal hashes. The normal status progression is PENDING, PENDING_CONFIRMATION, ACCEPTED, and EXECUTED — a duplicate submission creates a separate transfer rather than accelerating the original. Rhino's status documentation describes a SWAP_FAILED → SWAP_FAILED_REFUNDED path for failed swaps. Preserve the quote ID, both wallet addresses, token, amount, and source hash for any support inquiry.

Rhino Bridge Fees and Costs

How much does Rhino Bridge charge?

Rhino Bridge does not publish one universal fee for every chain. Its fee model combines a percentage bridge fee with destination settlement gas passed through at cost; source-chain gas is paid separately by the sender. Some routes carry platform charges of approximately $0.01–$0.06, but those are route-specific examples rather than a guaranteed network-wide range. The binding price is the quote's fee breakdown and final receive amount, which Rhino honors until that quote expires.

Which gas fees do I pay when using Rhino Bridge?

You pay source-chain gas for the token approval (when required) and for the transaction that deposits funds into the Rhino Bridge contract. Native-token transfers avoid the approval transaction but still require gas for the deposit. Destination execution gas is included in Rhino's quote and passed through at cost, with fees normally deducted from the deposited amount. Ethereum mainnet gas often dominates small transfers, whereas source transactions on Arbitrum, Base, Optimism, and other Layer 2 networks cost significantly less.

What is the cheapest way to use Rhino Bridge?

Compare quotes by the final destination amount, not the headline bridge charge, because gas, percentage fees, and swap price impact all affect the result. Use a same-token bridge when possible, since bridge-and-swap introduces an additional conversion step, and avoid very small Ethereum-mainnet transfers whose fixed gas cost consumes a large percentage of the amount. Bridging from an existing Layer 2 balance and waiting for lower Ethereum congestion reduces source costs. Always refresh an expired quote because fees, liquidity, and estimated output can change between signing attempts.

Rhino Bridge Security and Audits

Has Rhino Bridge been audited?

Rhino publishes a CrossSwap v1 audit by PeckShield alongside audits covering its historical StarkEx deployments and automated-market-maker contracts. Its security page documents an Immunefi bug bounty with critical-contract rewards capped at $2 million and a stated $100,000 minimum for qualifying critical findings.

What can go wrong with Rhino Bridge, and how do I protect my funds?

A Rhino Bridge transfer can fail because of an unsupported token-route combination, insufficient gas, an expired quote, price movement during a bridge-and-swap, network congestion, or an incorrect recipient address. Broader risk categories include smart-contract vulnerabilities, approval management, front-end integrity, and liquidity conditions on both the source and destination chains.

Rhino Bridge Chains, Tokens, and Routes

Which blockchains and tokens does Rhino Bridge support?

Rhino Bridge lists deployments on 27 networks, including Ethereum, Arbitrum One, Optimism, Base, Polygon, BNB Smart Chain, Avalanche, Linea, Scroll, StarkNet, zkSync Era, Solana, Tron, and TON. Core assets include USDC, USDT, ETH, WBTC, BNB, USDe, and selected route-specific stablecoins such as EURC. Route availability depends on the specific token pair — the live quote confirms whether a path exists between the selected chains.

Can I bridge USDC cross-chain with Rhino Bridge without receiving wrapped USDC?

Rhino Bridge supports USDC across numerous EVM and non-EVM networks, but the exact source-destination pair must appear in its same-token bridge matrix. The quote shows the destination token contract, since USDC, bridged USDC, and legacy USDC variants differ by chain. If the route uses bridge-and-swap, Rhino can accept another supported token and settle USDC, but the output depends on the quoted conversion. For native burn-and-mint USDC without liquidity pools, compare Rhino Bridge's quote with Circle's Cross-Chain Transfer Protocol.

How do I bridge crypto to Base using Rhino Bridge?

Select the source network and token, set Base as the destination, and choose an output currently supported on Base — Rhino Bridge's matrix lists assets including USDC, USDT, EURC, ETH, and WBTC. Review the live quote rather than assuming that every same-token route is enabled, then approve the token if necessary and sign the source deposit. Base uses an EVM address, but the recipient also needs ETH on Base for subsequent transactions. For comparison, Base's official bridge notes that Ethereum-to-Base deposits typically reach the sequencer within three minutes while Base-to-Ethereum withdrawals require seven days.

Rhino Bridge vs Alternatives

How does Rhino Bridge compare with LI.FI, Across, Stargate, and Circle CCTP?

Rhino Bridge focuses on stablecoin bridging, smart deposit addresses, and liquidity-backed settlement across more than 20 networks. LI.FI is a neutral routing layer that compares multiple bridges, exchanges, and solvers, while Across uses competing solvers to fill cross-chain intents and Stargate operates its own unified-liquidity routes. Circle CCTP is narrower but transfers native USDC through burn-and-mint rather than a traditional liquidity pool. Choose by comparing final received amount, estimated duration, and trust assumptions for your specific route.

Rhino Bridge FAQ