Cross-chain bridge

Symbiosis

Cross-chain swap and bridge protocol that routes transfers through its own S-chain and Octopool liquidity.

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Facts checked Sep 26, 2026

Symbiosis key facts

CategoryCross-chain bridge
ChainsEVM chains, TON, Tron, Bitcoin and others
PlatformsWeb, API, SDK
CustodyNon-custodial
FeesSource gas paid by user; S-chain and destination gas withheld from the swap in stablecoin equivalent
Chains50+ chains
Security auditsOmniscia, SlowMist, Zokyo, Decurity, HashCloak
TokenSIS
About

What is Symbiosis?

Symbiosis is a cross-chain swap and bridge protocol that routes each transfer through its S-chain using sTokens and Octopool liquidity. Gas on the S-chain and destination is withheld from the swap in a stablecoin equivalent. Its site lists swaps across 50+ chains.

Symbiosis usage

Total value locked$8.2M+1.6% in 7 days
Fees paid, 24h$2,018
Fees paid, 30d$200,318
Chains57

From DefiLlama (TVL) (fees users paid), updated Sep 26, 2026.

Cross-chain bridgeNon-custodialWebAPISDK

Symbiosis pros and cons

Pros
  • Swaps across 50+ chains per its site, including TON and Tron
  • Audits by Omniscia, SlowMist, Zokyo, Decurity and HashCloak
  • One signed transaction covers all hops
Cons
  • Gas for S-chain and destination hops is withheld from the output
  • Routes pass through synthetic sTokens
  • Integrators must deploy their own collector contracts to add fees

Symbiosis FAQ

What is Symbiosis?

Symbiosis is a cross-chain swap and bridge protocol that routes each transfer through its S-chain using sTokens and Octopool liquidity. Gas on the S-chain and destination is withheld from the swap in a stablecoin equivalent. Its site lists swaps across 50+ chains.

How much value is locked in Symbiosis?

$8.2M according to DefiLlama on Sep 26, 2026. It is deployed on 57 chains: Ethereum, Tron, Binance, Robinhood Chain, TON, Arbitrum and others.

How much does Symbiosis cost?

Source gas paid by user; S-chain and destination gas withheld from the swap in stablecoin equivalent, according to Symbiosis’s own page (checked Sep 26, 2026).

How much do users pay Symbiosis in fees?

$200,318 over the last 30 days, according to DefiLlama on Sep 26, 2026.

Does Symbiosis hold my funds?

No. Symbiosis is non-custodial: you keep your funds in your own wallet and sign each transaction.

Sources

  1. Symbiosis: official site
  2. Symbiosis: Symbiosis and Fees
  3. Symbiosis: Home page
  4. Symbiosis: Audits repository
  5. Symbiosis: SIS Token
  6. DefiLlama

How this page works

Sources: Symbiosis: official site, Symbiosis: Symbiosis and Fees, Symbiosis: Home page. Data as of Sep 26, 2026.

How we review

Not affiliated with any project listed. Educational content, not financial advice.