Omnichain Gateway

B2B cross-chain settlement router and middleware built on Stellar.

Omnichain Gateway programmatically bridges Stellar's compliant fiat anchors with external decentralized finance ecosystems, automating currency conversions and transaction verification across chains.

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Why This Project Exists

Fintech applications and cross-border payment processors need to leverage Stellar's extensive on-ramps and off-ramps while maintaining interoperability with external DeFi applications on networks like Ethereum, Solana, and Arbitrum. This project addresses several persistent infrastructure gaps:

• Fragmented liquidity across isolated chain infrastructures forces manual and insecure treasury management.
• Compliance complexity — navigating Stellar's standard compliance layers (SEP-24, SEP-31, and SEP-38) alongside multi-chain protocols introduces significant integration overhead.
• No standardized order router exists to bundle fiat deposits directly into cross-chain swaps without manual intervention.
• High-slippage paths on localized pools degrade transaction capital efficiency.

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Repository Structure

.
├── packages/
│   │                       # locking, minting, and cross-chain message passing
│   ├── anchor-adapter/     # Node.js middleware handling interactive SEP-24
│   │                       # and B2B SEP-31 compliance workflows
│   └── rfq-engine/         # Core pricing service integrating with SEP-38 APIs
│                           # to lock in guaranteed currency conversion rates
└── docs/                   # Developer blueprints, security assumptions,
                            # and bridge implementation patterns

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Quick Start

Prerequisites

• Node.js 22+
• Rust stable + Cargo
• Hardhat / Foundry (for EVM contract testing)

Run EVM and Soroban Integration Tests

npm install
npm run test:all

Execute SEP-38 Quote Generation

Query the gateway's routing engine to lock in an exchange rate between Stellar-native stablecoins and external destination assets:

cd packages/rfq-engine
npm run generate-quote -- --from "stellar:USDC" --to "ethereum:USDC" --amount 10000

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Security

To report a vulnerability, open an issue,

Multi-chain bridging involves significant risk. Omnichain Gateway minimizes exposure by requiring consensus validation through Decentralized Verifier Networks (DVNs) or institutional Guardian nodes to confirm source-chain state events before releasing target assets.

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License

Click here to read License