Invoice Liquidity Network

Turn unpaid invoices into instant liquidity on-chain, on Stellar.

Invoice Liquidity Network (ILN) is an open-source, decentralised invoice factoring protocol built on Stellar using Soroban smart contracts. Freelancers, creators, and SMEs unlock the value of outstanding invoices immediately, while DeFi liquidity providers earn yield by funding them at a discount.

No banks. No credit checks. No 60-day waits.

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Organisation Repositories

Repository	Description	Language
Invoice-Liquidity-Network	🏠 This repo — org overview, shared docs, SDK, CLI, indexer, notifications	TypeScript
ILN-Frontend	🖥️ Next.js dApp — freelancer dashboard, LP analytics, governance UI	TypeScript
ILN-Smart-Contract	⚙️ Soroban smart contracts — invoice lifecycle, multi-token, reputation	Rust

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How It Works

Freelancer                  ILN Contract              Liquidity Provider
    |                            |                            |
    |--- submit_invoice() ------>|                            |
    |    (amount, payer,         |                            |
    |     due_date, discount)    |                            |
    |                            |<--- fund_invoice() --------|
    |                            |    (sends USDC at          |
    |<-- receives USDC -------   |     discounted amount)     |
    |   (amount - discount)      |                            |
    |                            |                            |
   ...    invoice due date       ...                          |
    |                            |                            |
  Payer --- mark_paid() -------->|                            |
                                 |--- releases full amount -->|
                                      (LP earns the spread)

1. Submit — A freelancer calls submit_invoice() with amount, payer, due date, and discount rate
2. Fund — A liquidity provider calls fund_invoice(), sending USDC. The freelancer receives funds immediately
3. Pay — The payer settles the invoice, releasing the full amount to the LP
4. Earn — The LP earns the discount spread as yield

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Stellar Testnet Deployment

Contract	Contract ID
ILN-Distribution	CAQGPMT3EQK4AABMIR66JJXEOCNCLPTDNXMS5OHZXH4LI24UYAF25V5B
Invoice-Liquidity	CCPASLHKRFBMVV5PZG3LKDGKFEDXZMB5U7DK42CVLUVWCMUCSRPVBIMO
ILN-Governance	CD7GOIU3GNK7EZHG7XWBC7VI4NRVGMRCU7X2FOCAPQN6EGTSW46BY4EB

Mainnet deployment coming after audit. Do not use with real funds until then.

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What's in This Repo

This is the organisation root — it contains shared infrastructure used across all ILN sub-projects:

SDK (sdk/)

A typed JavaScript/TypeScript SDK with browser Freighter signing and Node.js keypair support.

npm install @invoice-liquidity/sdk

See sdk/README.md for full API documentation.

CLI (cli/)

A command-line tool for interacting with the ILN contract on testnet and mainnet.

npm install -g @invoice-liquidity/cli

iln submit --payer G... --amount 100 --due 2025-12-31 --rate 300
iln fund --id 1
iln pay --id 1
iln status --id 1

See cli/README.md for setup and usage.

Indexer (indexer/)

A Node.js service that indexes contract events and exposes a REST API for the frontend.

Notifications (notifications/)

A webhook-based notification service for invoice lifecycle events.

See docs/notifications.md for setup.

Scripts (scripts/)

Deployment and development helper scripts.

Script	Purpose
scripts/deploy.ts	Deploy contract to testnet/mainnet
scripts/fund-wallets.sh	Fund testnet wallets via Friendbot
scripts/seed.sh	Seed test data
scripts/dev-setup.sh	Set up a local dev environment

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Repository Structure

.
├── cli/                    # CLI package (@invoice-liquidity/cli)
├── docs/                   # Shared protocol documentation
├── indexer/                # On-chain event indexer service
├── notifications/          # Webhook notification service
├── scripts/                # Deployment & dev scripts
├── sdk/                    # TypeScript SDK (@invoice-liquidity/sdk)
├── tests/                  # E2E integration tests
├── .github/workflows/      # CI/CD pipelines
├── docker-compose.yml      # Local dev environment
├── CHANGELOG.md
├── CONTRIBUTING.md
├── LICENSE
└── README.md               # You are here

Frontend and Smart Contract source code lives in their own dedicated repositories (linked above as git submodules).

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Getting Started (Local Dev)

Prerequisites

• Node.js 18+
• Rust 1.74+
• Stellar CLI
• Docker (for E2E tests)

Clone with Submodules

git clone --recurse-submodules https://github.com/Invoice-Liquidity-Network/Invoice-Liquidity-Network.git
cd Invoice-Liquidity-Network

# Or if already cloned:
git submodule update --init --recursive

Start Local Environment

docker-compose up -d          # Start local Stellar node
npm run test:e2e              # Run E2E integration tests

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Roadmap

• Core Soroban contract (submit, fund, mark_paid)
• Testnet deployment
• Frontend dApp for freelancers
• LP dashboard with yield analytics
• TypeScript SDK + CLI
• Multi-token support (USDC, EURC, XLM)
• Off-chain payer verification oracle
• Formal security audit
• Mainnet deployment
• DAO governance for protocol parameters

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Documentation

Doc	Description
docs/index.md	Protocol overview
docs/governance.md	Governance guide
docs/multi-token.md	Multi-token support
docs/notifications.md	Notification system
docs/local-development.md	Local dev setup
CONTRIBUTING.md	How to contribute
SECURITY.md	Security policy

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Contributing

We welcome contributions of all kinds — smart contract improvements, documentation, frontend, tests, and research.

See CONTRIBUTING.md for the full process.

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License

MIT — see LICENSE

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Built on Stellar

Built on Stellar and Soroban.

This project is not affiliated with Stellar Development Foundation.