Documentation
Protocols & audits
Some protocols and components used by specific routes have published third-party security audit reports. Each report states its own scope; reports do not audit SureSettles or the complete SureSettles system. Click a report to read it here.
Last updated:
deBridge
Primary cross-chain route
High-performance cross-chain liquidity network (DLN). Our default route for converting most deposit assets to USDT TRC-20.
33 audit reports
- Main Smart Contract Security Audit — by Halborn, 2021-11
- Main Smart Contract Security Audit — by Zokyo, 2021-11
- Pre-Release Smart Contract Security Audit — by Halborn, 2022-02
- Solana Contracts Program Security Audit — by Halborn, 2022-05
- Solana Security Audit — by Ackee, 2022-05
- Solana Security Audit — by Neodyme, 2022-05
- WebApp Security Audit — by Halborn, 2022-05
- Node Security Audit — by Halborn, 2022-05
- Backend Penetration Test — by Halborn, 2022-05
- Solana Multisig Program Audit — by Halborn, 2022-05
- Solidity Smart Contracts Security Audit — by Halborn, 2022-05
- Cloudflare Infrastructure Review — by Halborn, 2022-05
- Solidity Smart Contract Security Audit — by Halborn, 2022-06
- Cross-Chain Swap Smart Contract Audit — by Halborn, 2022-06
- Solana Contracts Program Audit — by Halborn, 2022-06
- Solana Events Reader Whitebox Pentest — by Halborn, 2022-09
- Solana Transaction Parser Whitebox Pentest — by Halborn, 2022-09
- Cross-Chain Forwarder Update Audit — by Halborn, 2022-10
- Contracts v1 Smart Contract Security Audit — by Halborn, 2022-11
- DLN EVM Contracts Security Audit — by Halborn, 2022-12
- Solana Events Reader Rust Program Audit — by Halborn, 2023-04
- DLN Solana Program Security Audit — by Halborn, 2023-06
- EVM-to-Solana Serializer Security Assessment — by Halborn, 2023-07
- DLN External Call Security Assessment — by Halborn, 2023-07
- DLN Taker Code Security Assessment — by Halborn, 2023-09
- DLN EVM Bridge 1.3.0 Security Assessment — by Halborn, 2023-11
- DLN Solana Release Assessment — by Halborn, 2024-03
- CrosschainForwarder Allowances Audit — by Halborn, 2024-09
- DLN Solana Contracts Security Assessment — by Halborn, 2024-10
- Airdrop Contract Security Assessment — by Halborn, 2024-10
- DLN EVM Upgrades Security Assessment — by Halborn, 2024-11
- extcall Solana Program Security Assessment — by Halborn, 2023-11
- Core Protocol Solana Contracts Audit — by Halborn, 2024-11
Symbiosis
Cross-chain fallback route
Multi-chain liquidity protocol used as an automatic fallback when the primary route is unavailable or more expensive.
7 audit reports
- Symbiosis Protocol Audit — by Zokyo, 2022-02
- Symbiosis Protocol Audit — by SlowMist, 2022-02
- Symbiosis Protocol Audit — by Omniscia, 2022-03
- Protocol MRv3 Audit — by Zokyo, 2022-05
- Pool Audit — by Zokyo, 2022-12
- Onchain Swap Audit — by Decurity, 2023-09
- Depository Audit — by Decurity, 2025-10
NEAR Intents
Bitcoin settlement route
Decentralized solver network on NEAR. Default route for BTC deposits and for reverse payouts from USDT to native coins.
17 audit reports
- NEARCore Security Assessment — by Trail of Bits, 2019-11
- NEARCore Security Assessment — by Sigma Prime, 2019-12
- NEARCore Assessment Part 2 — by Sigma Prime, 2020-01
- Core Smart Contracts Assessment — by Sigma Prime, 2020-06
- Aurora BTC Audit — by AuditOne, 2024-09
- HOT Omni Token & Meta Wallet Audit — by Hacken, 2024-10
- Omni Bridge Audit — by AuditOne, 2024-11
- Omni Bridge Audit 2 — by AuditOne, 2025-01
- Intents Audit — by Hacken, 2025-01
- NEAR Intents Passkeys Security Review — by Guvenkaya, 2025-02
- NEAR Intents Security Review — by Guvenkaya, 2025-03
- Dual Defense Assessment — by Aurora Labs, 2025-03
- p256 Crate Security Assessment — by zkSecurity, 2025-04
- PedPop+ Comprehensive Report — by NEAR One, 2025-04
- HOT DAO Stellar Audit — by Veridise, 2025-09
- HOT DAO Stellar Audit V4 — by Veridise, 2025-10
- BTC Bridge Audit Report — by NEAR One, 2026-01
THORChain
Native-asset liquidity pools
Decentralized liquidity network for native (non-wrapped) asset swaps, used when its pools price a settlement best.
7 audit reports
- RUJI Trade (FIN) Audit — by Halborn, 2025-02
- RUJI Pools (BOW) Audit — by Halborn, 2025-02
- Rujira Staking Audit — by Halborn, 2025-04
- NAMI Protocol Rujira Index Product Audit — by Halborn, 2025-05
- RUJI Lending Audit — by Halborn, 2025-10
- Credit Accounts Audit — by Halborn, 2025-11
- RUJI Trade (FIN) v1.1 Audit — by Halborn, 2025-11
Chainflip
Cross-chain route
Decentralized cross-chain swap protocol included in per-deposit route ranking when it prices a settlement competitively.
3 audit reports
- Multisig Security Audit — by Kudelski Security, 2022-05
- Security Review — by Trail of Bits, 2023-07
- Backend Audit Report — by Zellic, 2023-12
Rango
Route aggregator
Cross-chain aggregator evaluated for BTC settlements when it offers the cheapest verified path.
4 audit reports
- Rango V2 Audit — by PeckShield, 2023-06
- Rango Comet Intermediary Audit — by PeckShield, 2023-07
- Rango V2.1 Audit — by AstraSec, 2024-09
- Rango V2.1.1 Audit — by AstraSec, 2025-08
Curve
Stablecoin DEX (Ethereum)
Battle-tested stablecoin exchange used for USDC→USDT legs on Ethereum inside two-hop settlements.
2 audit reports
- Curve Stablecoin (crvUSD) Security Audit — by MixBytes, 2023-06
- StableSwapNG Security Audit — by MixBytes, 2023-11
Uniswap
DEX (Arbitrum)
The largest decentralized exchange, used for stablecoin legs on Arbitrum inside two-hop settlements.
2 audit reports
- Uniswap V3 Core Audit — by ABDK, 2021-03
- ERC20ETH Audit — by OpenZeppelin, 2025-12
Meson
Stablecoin bridge
Minimal-fee stablecoin bridge included in route ranking for EVM stablecoin deposits when it prices best.
3 audit reports
- Security Audit R1 — by Trail of Bits, 2022-02
- Security Audit R3 — by Trail of Bits, 2022-10
- Security Audit R4 — by Trail of Bits, 2022-10
Allbridge Core
Stablecoin bridge
Stablecoin-native bridge included in route ranking for Ethereum, Arbitrum and Solana stablecoin deposits.
2 audit reports
- Allbridge Estrela Security Review — by Quarkslab, 2024-04
- Allbridge Estrela Security Review — by Quarkslab, 2025-02