💸 Payment Splitter Factory

A smart contract factory that creates payment splitter contracts to automatically distribute token balances between multiple recipients based on predefined percentages.

This solution is already live across multiple chains:

• 🟡 Stellar (Soroban) – payment_splitter
• 🌀 Polkadot (Ink!) – split_contract
• 🟣 zkSync – zk-splitter
• 🔵 Mantle – mantle-splitter

Use cases include:

• Splitting crypto grants or revenue
• Royalties for music, NFTs, or content
• Real estate income sharing (RWA)
• Revenue sharing among co-founders, investors, or DAOs

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🏭 How It Works

✅ Factory Pattern

• A Factory Contract deploys multiple Splitter Contracts with unique configurations.
• Each Splitter Contract is immutable and fully on-chain.

🔁 Splitter Logic

Each deployed splitter contract:

1. Accepts token transfers directly.
2. Stores a list of recipients and their share (in basis points).
3. When pay() is called:
   • Reads the current balance of a specific token.
   • Splits the full balance.
   • Sends funds to each recipient accordingly.

No manual calculations, no spreadsheets, no custodians.

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✨ Features

• 🔐 Trustless and transparent
• 🚀 Works with any standard token (USDC, wrapped assets, etc.)
• 📊 View functions to read:
  • Current token balance
  • Recipient list and allocations
• 🧩 Chain-agnostic architecture
• 🔁 Portable across Stellar, zkSync, Mantle, and Polkadot

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🌐 Multi-Chain Implementation

Chain	Contract Name	Language
Stellar	payment_splitter	Rust (Soroban)
Polkadot	split_contract	Ink!
zkSync	zk-splitter	Solidity
Mantle	mantle-splitter	Solidity

All implementations follow the same factory/deployer model, enabling a shared frontend and common user experience across ecosystems.

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📦 Use Cases

Use Case	Example
Hackathon Teams	Split grant or prize winnings among members
Real Estate / RWA	Distribute rental income to multiple owners
Royalties for Creators	Stream earnings to artists, producers, and collaborators automatically
Startup Revenue Sharing	Pay investors and co-founders based on pre-agreed splits
DAOs / Collectives	Reward contributors based on contribution levels

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📄 Interface (Stellar Version)

pub fn pay(env: Env, token: Address);
pub fn get_balance(env: Env, token: Address) -> i128;
pub fn get_recipients(env: Env) -> Vec<(Address, u32)>;