Cross-Chain Swap Aggregators Compared: LI.FI, Bungee, Rango and THORChain
Short answer
A cross-chain swap aggregator finds a route that takes your coins from one blockchain to another, often swapping them on the way. These four names work in different ways:
- LI.FI, Bungee (Socket) and Rango search many bridges and exchanges, then give you a route to sign with your wallet. Bungee can also give you a deposit address instead.
- THORChain works differently. It is its own network that swaps native coins, such as real BTC for real ETH, through its own pools.
SwapBee publishes this guide; its provider list includes LI.FI and Bungee. Unless an archive date is stated, the linked sources were checked on 7 October 2026.
How do cross-chain swap routes work?
There are three common ways:
- Bridge routes. A bridge typically locks your token on one chain and issues a matching token on another; aggregators can add a swap before or after.
- Solver or intent routes. You state what you want to receive. Other parties, called solvers (CoW Protocol) or resolvers (1inch Fusion), compete to fill the order.
- Native swaps. A network holds real coins on each chain and swaps between them, so you receive the native coin, not a wrapped copy.
For the difference between moving a token and swapping it, see cross-chain swap vs bridge.
How do LI.FI, Bungee (Socket), Rango and THORChain compare?
The facts below come from each project's own docs, which change often.
| LI.FI | Bungee (Socket) | Rango | THORChain | |
|---|---|---|---|---|
| What it is | Bridge and DEX aggregator | Routing engine for swaps and bridging | Bridge and DEX aggregator | Its own network for native swaps |
| Coverage, per its docs | 58 chains, 27 bridges, 31 exchanges | More than 50 chains and 10,000 assets | More than 55 blockchains, 100 DEXs, 22 bridges | Native coins on the chains it connects, such as BTC, ETH and LTC |
| Fees, per its docs | The overview page lists chains, bridges and exchanges but not fees | The page lists a fee that apps can set in basis points but not a Bungee fee rate | The introduction lists chains, DEXs, bridges and wallets but not fees | Its dev docs' sample quote shows outbound and liquidity fees taken out of the expected output; apps can add an affiliate fee |
| How you swap | Connect a wallet and sign | Connect a wallet and sign, or send to a deposit address | Connect a wallet and sign each step | Send coins to a vault address with a memo (a short note that tells THORChain what to swap to) |
| What you receive | Selected destination token on full completion; a partial completion can deliver a different token | Selected destination token on successful completion | Selected destination token on successful completion | The native coin |
| Sources | LI.FI docs | Bungee docs | Rango docs | THORChain docs, dev docs |
LI.FI
LI.FI says it connects to DEX aggregators, bridges and intent systems, including Uniswap, 1inch, Stargate and Across (LI.FI), and its docs describe multi-step routes (LI.FI docs).
Bungee (Socket)
Bungee's docs now describe Socket, which lets an app offer routes across DEXs, bridges and solvers, picked by speed, output or cost (Bungee docs).
Rango
Rango says it supports most of the top EVM, Cosmos, Solana and Bitcoin-style (UTXO) chains (Rango docs). For each step, the app may ask you to approve the token and then sign the swap (Rango API flow).
THORChain
Every THORChain pool pairs a coin with RUNE, its own token, so a BTC-to-ETH swap goes BTC to RUNE to ETH in one transaction. Vaults on each chain hold the coins and a group of nodes signs payouts; THORChain's docs say no single node has full control of the funds (THORChain docs), though in May 2026 one node got around this.
Have LI.FI, Bungee (Socket), Rango or THORChain been hacked?
In August 2022, Chainalysis wrote that bridges are an attractive target because they often keep funds in one central place (Chainalysis). These are the main incidents reported by each project or a security firm:
- LI.FI. In March 2022, a flaw in LI.FI's swap feature let an attacker take about $600,000 from 29 wallets with unlimited approvals to its contract; LI.FI said it repaid all 29 wallets (LI.FI post-mortem, as archived 17 November 2025). In July 2024, a flaw in a newly added contract module (LI.FI calls it a facet) let an attacker take about $11.6 million from wallets with unlimited approvals to its contract (LI.FI incident report).
- Bungee (Socket). In January 2024, a flaw in a new module of Socket, which Bungee's docs now describe, let an attacker drain an estimated $3.3 million from wallets with unlimited approvals to its contract (Halborn).
- Rango. Rango's page says it has had no exploit-related loss of user funds since launch (Rango).
- THORChain. In July 2021, it reported two exploits on its Ethereum router (THORChain post-mortem). On 15 May 2026, a node that had joined two days earlier combined three small flaws in its signing library to take about $10 million to $10.7 million, by THORChain's reports #1 and #2, from one of its five vaults (report 1, report 2).
The LI.FI and Bungee (Socket) cases share a lesson: an unlimited approval stays open after your swap until you revoke it.
What do cross-chain swaps cost on SwapBee?
SwapBee doesn't charge a separate fee, but it does earn from your swap. On swaps through exchange services, the provider shares part of its fee with SwapBee. On on-chain DEX swaps, SwapBee adds a small markup to the quote. Both are already in the quote you see; nothing is added on top. Your wallet also charges its usual network fee to send the deposit. We sampled live SwapBee quotes for five cross-chain swaps on 7 October 2026, between 11:13 and 11:28 UTC; each figure is the estimated amount you would receive.
| Swap | Quotes | Highest | LI.FI | Lowest | Gap |
|---|---|---|---|---|---|
| 1 ETH (Ethereum) → ETH (Base) | 15 | 0.9969 ETH | 0.9939 ETH, 5th | 0.9503 ETH | 4.7% |
| 2 BNB (BNB Chain) → ETH (Ethereum) | 14 | 0.5930 ETH | 0.5911 ETH, 4th | 0.5647 ETH | 4.8% |
| 1,000 USDC (Ethereum) → USDC (Arbitrum) | 15 | 996.29 USDC | 993.81 USDC, 5th | 949.72 USDC | 4.7% |
| 0.05 BTC → SOL | 14 | 35.439 SOL | no quote | 33.821 SOL | 4.6% |
| 500 USDT (Tron) → USDC (Solana) | 13 | 496.86 USDC | no quote | 474.86 USDC | 4.4% |
Three things stand out:
- LI.FI, the only bridge route that quoted, came close to the top quote, but not first. It was within about 0.3% of the highest quote on the three EVM swaps; Changelly, an exchange service, came first each time.
- For BTC to SOL and USDT (Tron) to USDC (Solana), only exchange services quoted.
- The highest and lowest quotes were 4.4% to 4.8% apart every time.
Prices change constantly, so treat these quotes as dated examples, not a price list.
How do I choose a cross-chain route?
- Match the route to your coins. For tokens between EVM chains, bridge aggregators have many routes. For native BTC, compare native swaps and exchange services as well as aggregators that list Bitcoin, such as LI.FI.
- Decide how you want to sign. Wallet routes need your signature and may need a token approval; THORChain needs a transaction with the right memo, and Bungee also offers deposit addresses. On SwapBee you send coins from your own wallet to a deposit address made for your swap, with no account and no wallet connection, and the new coins go to an address you choose. There are no accounts, balances or pooled wallets: most swaps send your deposit straight to the provider, and on-chain DEX swaps use a one-time swap address SwapBee operates, which executes the swap and sends the output to your wallet automatically. Before you confirm, each quote's provider policy shows who holds your deposit. The provider may ask for checks, and in exceptional cases SwapBee may ask for information (AML policy).
- Approve only what you swap. Set the approval to the exact amount, and revoke old approvals with a tool such as Revoke.cash.
- Check the track record and the response. LI.FI and THORChain published their own incident reports, and Halborn described Socket's; Rango's page says it has had no exploit-related loss of user funds since launch. Read how each team handled its incident and whether users were repaid.
- Compare live quotes for your exact swap.
FAQ
What is the best cross-chain swap aggregator?
It depends on the pair. For tokens between EVM chains, LI.FI, Bungee (Socket) and Rango cover many routes; for native coins, THORChain or exchange services may fit better.
Is THORChain a bridge?
No. THORChain doesn't wrap your coins; it holds native coins in vaults on each chain and swaps them through pools paired with RUNE.
Has Bungee (Socket) been hacked?
In January 2024, a flaw in a new module of Socket, which Bungee's docs now describe, let an attacker drain an estimated $3.3 million from about 200 users' wallets with unlimited approvals; Halborn says Socket disabled the route within 14 minutes (Halborn).
Has LI.FI been hacked?
Yes, by its own account: about $600,000 from 29 wallets in March 2022 (LI.FI said it reimbursed all 29, $570,000 in total, with one user partly taking an investment offer; post-mortem as archived 17 November 2025) and about $11.6 million in July 2024.
Popular cross-chain swaps: BTC to ETH, BTC to SOL, BNB to ETH, USDT (Tron) to USDT (Ethereum). More on cross-chain swaps with SwapBee.
Compare routes for your swap: see live cross-chain quotes on SwapBee.