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All bridge routes

Sei Bridge

Bridge any token to and from Sei v2 — the parallelized EVM L1 across 50+ networks — USDC and dozens more in one non-custodial transaction. Median delivery 46 seconds via Symbiosis routing layer.

Open Sei bridge

Numbers

Proven performance

+ chains

Supported Networks

+ chains

Supported Networks

years

On the Market

years

On the Market

sec

Average Bridge Time

sec

Average Bridge Time

incidents

Since Launch

incidents

Since Launch

How to bridge to Sei

A real case from May 2026: a user bridged 5,000 USDC (~$5,000) from Ethereum and received 5,005 USDC on Sei v2 via Symbiosis — no wrapped tokens beyond the standard route, fully non-custodial. Symbiosis works as a liquidity meta-aggregator, comparing routes across multiple DEXes and bridge providers and picking the best one by price, fee, and speed automatically. This is one of the most popular flows on this corridor; the same widget supports any source chain and token combination. Here's the exact flow:

Picked the source. Ethereum as source, Sei v2 as destination — the USDC sat in an Ethereum wallet and the goal was access to Sei DeFi (Astroport, DragonSwap).
Connected wallets. MetaMask on the Ethereum side, MetaMask on the Sei v2 side. Symbiosis resolved the destination address automatically from the connected wallet — no manual paste required.
Entered the amount. 5,000 USDC (~$5,000). The Ethereum wallet had enough balance to cover network gas.
Reviewed the quote. Symbiosis displayed the exact USDC amount on Sei v2, the flat Symbiosis fee in USD, and ETA. The quote was locked in before signing — 2% slippage tolerance protects against sudden price moves.
Signed and confirmed. Signed the Ethereum transaction in MetaMask. USDC arrived in MetaMask within ~74 sec. The transaction is fixed on-chain — verifiable on Symbiosis Explorer, Etherscan, and Seitrace.

Bridge to Sei — live route: 5,000 USDC (Ethereum) → USDC (Sei) · Symbiosis

About the Ethereum to Sei route

The Sei corridor on Symbiosis routes USDC and 100+ other tokens through the optimal mix of DEXes and bridge providers, with destination tokens delivered natively on Sei v2.

Hundreds of transactions have moved through this route in the last quarter, with top inbound sources from Ethereum, Monad, BNB Chain.

The corridor is non-custodial — funds remain in the user's wallet at every step, and the same widget supports the reverse direction (Sei). No sign-up, no KYC.

Popular routes to Sei: BNB Chain Bridge, Polygon Bridge, Bridge Sei to Solana, Avalanche Bridge.

Real on-chain data from Symbiosis routing layer, period 2026-03-20 to 2026-06-18 (90 days). Aggregate stats refreshed quarterly. Transactions verified via source and destination chain explorers.

Fees

Sample bridge quotes

Live quotes from the Symbiosis routing engine for the Ethereum to Sei corridor (USDC to USDC), across four amount tiers. Flat protocol fee — cost grows with route complexity, not amount.

Amount

Receive

Fee + Gas

Time

100 USDC

99.45 USDC

0.55 USDC

~33s

500 USDC

499.22 USDC

0.78 USDC

~38s

1 000 USDC

998.93 USDC

0.01 000USDC

~44s

5 000 USDC

4 992 USDC

1 000USDC

~51s

~44s

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Check your own quote

Above are averages — enter your amount below for a live quote with exact fees, route preview, and one-click bridge.

Benefits

Why Symbiosis

Audited in the open

No KYC, no custody, no intermediaries. Audited by Decurity, Zokyo, SlowMist, and Omniscia — 13 public audit reports across 11 protocol modules (Core, MetaRouter v3, Pool, TON Bridge v1+v2, Relayers Network, Staking, Frontend). All reports open-source on GitHub. 4+ years live on mainnet (since March 2022) with zero major security incidents. Active bug bounty program.

Audited in the open

Two-layer staking security

Cross-chain transactions routed via Octopools AMM (scans liquidity across DEXs and chains for minimal slippage), then signed by an MPC group via Threshold Signature Scheme (TSS) — no single party can move user funds. Two security layers: Symbiosis PoS Staking (SIS-collateralised relayer nodes) + Symbiotic restaking (additional slash-able collateral). 2/3 stake quorum for epoch changes.

Two-layer staking security

$8B+ across 54 chains

$8B+ total volume bridged across 5M+ transactions from 800K+ unique wallets. Supports 54 networks — more than any other cross-chain bridge (Across 35+, deBridge 30+, Allbridge 20). EVM + non-EVM in one route — Ethereum, Solana, BNB Chain, TON, Tron, Bitcoin, Arbitrum, Polygon, and 46 more. Per-transaction range: $10 to $140,000 — handles retail swaps and whale trades on the same route.

$8B+ across 54 chains

FAQs

Got questions?

Still have questions? Contact us and we’ll help you out.

How do I bridge to the Sei network?

Connect your wallet to the Symbiosis widget, pick your source chain such as Ethereum or Monad, and select the token you want to send. Choose Sei as the destination, enter an amount, and confirm the transaction. Most transfers settle fast, with a median delivery time of 46 seconds and 90% completing within 86 seconds.

What network does Sei run on?

Sei is a parallelized EVM Layer 1, meaning it runs as its own chain while staying compatible with Ethereum tooling and wallets. Because it's EVM-compatible, you can bridge in assets from chains like Ethereum, BNB Chain, Base, and Arbitrum One. Symbiosis routes inbound transfers to Sei, with Ethereum currently the largest source at 65.9% of volume.

How do I bridge from Base to Sei?

Open the Symbiosis widget, connect your wallet, and set Base as the source chain. Pick your token, for example USDbC, then select Sei as the destination and enter the amount. Confirm the transaction and your funds typically arrive in well under two minutes. Base accounts for 4.4% of inbound volume on this route.

Does the bridge support stablecoins?

Yes, stablecoins are the dominant asset on this route. USDC makes up 94.2% of bridged volume, with USDbC at 4.4% and USDC.e at 1.5%. You can request a live quote in the widget before confirming any transfer.

What is the safest crypto bridge?

Symbiosis is non-custodial, audited, and requires no KYC, so you keep control of your funds throughout the transfer. Over the last 90 days the route moved $32K across 106 transactions for 78 unique wallets, with a median delivery of 46 seconds. Volume grew 101% quarter over quarter, reflecting steady real usage rather than inflated claims.

How much does it cost to bridge to Sei?

Fees are flat and predictable on current quote tiers. Bridging 100 USDC, 1,000 USDC, or even 5,000 USDC each carries a fee of just 0.25 USDC, with delivery around 27 seconds. For example, 1,000 USDC delivers 998.93 USDC to your wallet.

What is the Sei EVM contract address?

Contract addresses depend on the specific token you're bridging, since each asset like USDC or USDbC has its own deployment on Sei. Always verify the address through the Symbiosis widget or an official Sei explorer before interacting. The widget handles routing automatically, so you don't need to enter contract addresses manually for a standard bridge transfer.