Build your own DeFi protocol on Bitcoin L1. No code. Just blocks.
What if you could build a DeFi protocol the way you build with Lego?
BlockForge is the first composable DeFi builder on Bitcoin Layer 1. Pick your modules — Vault, Staking, Rewards, TimeLock, Escrow, NFT Positions — snap them together, configure the parameters, and deploy a fully functional DeFi protocol directly on Bitcoin.
No Solidity. No Ethereum. No bridges. Pure Bitcoin.
Why it's unique: Every DeFi protocol today is monolithic — built by engineers, understood by few. BlockForge makes protocol design visual, modular, and accessible. Each module is a Lego block with a clear interface: onDeposit() and onWithdraw(). Compose them into pipelines. Deploy in one click.
Who it's for: Builders, DAOs, and DeFi teams who want to launch on Bitcoin without writing smart contracts from scratch. Power users who want custom yield strategies. Anyone who believes DeFi belongs on Bitcoin.
Why Bitcoin L1: Bitcoin is the most secure, decentralized network in existence. With OP_NET, smart contracts run natively on Bitcoin — no sidechains, no trust assumptions. Your DeFi protocol inherits Bitcoin's security from block one.
Build. Compose. Deploy. On Bitcoin.
src/
├── main.jsx # Entry point
├── App.jsx # Root component — 3-column layout
├── index.css # Tailwind + custom utilities
├── services/
│ ├── opnetWallet.js # OP_NET wallet API wrapper
│ └── contractService.js # SDK contract calls (write/view helpers)
├── data/
│ └── modules.js # Module definitions, pipelines, config fields
├── hooks/
│ ├── useProtocolBuilder.js # Core state: selection, config, pipeline gen
│ └── useOPNetWallet.js # Wallet connect/disconnect state
└── components/
├── Header.jsx # Logo, protocol name editor, BTC badge
├── ModuleSelector.jsx # Left panel — toggle Lego blocks
├── PipelineVisualizer.jsx # Center — visual deposit/withdraw flow
├── ConfigPanel.jsx # Right panel — sliders, inputs, toggles
├── DeploymentOutput.jsx # Modal — JSON config output
└── Footer.jsx # Reset, version info
contracts/
├── src/
│ ├── core/
│ │ ├── CoreContract.ts # Orchestrator (stable OP_NET pattern)
│ │ └── index.ts # Blockchain.contract entrypoint
│ └── modules/
│ ├── VaultModule.ts # Module examples
│ ├── StakingModule.ts # Module examples
│ ├── TimeLockModule.ts # Module examples
│ ├── EscrowModule.ts # Module examples
│ └── index.ts
├── deploy.ts # Deployment script
├── asconfig.json # Build config with opnet-transform
├── package.json # Contract dependencies
└── .env.example # Mnemonic + RPC config
selectedModules: string[] // ['vault', 'staking', 'rewards']
moduleConfigs: { // Per-module configuration
vault: { tokenType: 'BTC', maxDeposit: 10000000 },
staking: { apy: 12, compounding: true, minStake: 10000 },
...
}
depositPipeline: string[] // Computed: ['vault', 'staking', 'rewards']
withdrawPipeline: string[] // Computed: ['timelock', 'escrow', 'vault']
deploymentConfig: object // Generated JSON for deployment
Every module implements:
interface Module {
onDeposit(user: Address, amount: u256): void
onWithdraw(user: Address, amount: u256): void
}CoreContract calls modules in pipeline order:
- Deposit:
Vault → Staking → Rewards → NFT - Withdraw:
TimeLock → Escrow → Vault → NFT
| Color | Hex | Usage |
|---|---|---|
| BTC Orange | #F7931A |
Primary, CTAs, accents |
| BTC Gold | #FFB347 |
Rewards, highlights |
| Neon Blue | #00D4FF |
TimeLock, withdraw flow |
| Neon Green | #00FF88 |
Staking, success states |
| Neon Purple | #A855F7 |
Escrow, config panel |
| Neon Pink | #FF006E |
NFT, advanced features |
| Dark BG | #0D0D0D |
Background |
| Card BG | #141414 |
Card surfaces |
- Headings: Inter 600/700
- Body: Inter 400/500
- Code/Data: JetBrains Mono
- Snap-in: Spring animation when module is toggled on (scale 0.8→1.05→1.0)
- Pipeline flow: Animated gradient dots flowing through connectors
- Float: Gentle hover animation on empty states
- Glow pulse: Subtle shadow pulsing on active elements
- 3-column → stacked layout on mobile
- Module selector becomes horizontal scroll
- Pipeline wraps vertically
- Config panel uses bottom sheet pattern
{
"name": "My DeFi Protocol",
"modules": ["Vault", "Staking", "Rewards", "TimeLock"],
"params": {
"tokenType": "BTC",
"maxDeposit": 10000000,
"apy": 12,
"compounding": true,
"minStake": 10000,
"rewardToken": "OP_20",
"payoutFrequency": 100,
"rewardRate": 50,
"lockDuration": 1000,
"earlyWithdrawPenalty": 10
},
"pipeline": {
"deposit": ["Vault", "Staking", "Rewards"],
"withdraw": ["TimeLock", "Vault"]
},
"timestamp": "2026-03-01T00:00:00.000Z"
}# Install frontend dependencies
npm install
# Start dev server
npm run dev
# --- Contracts (separate) ---
npm --prefix contracts install
npm --prefix contracts run build
# Configure contracts/.env then deploy
npm --prefix contracts run deploy:tsUse contracts/.env:
MNEMONIC="..."
RPC_URL="https://testnet.opnet.org"
NETWORK="testnet"
WASM_PATH="./build/CoreContract.wasm"
FEE_RATE="5"
GAS_SAT_FEE="500000"- Constructor: Only pointer declarations (
new StoredU256,new AddressMemoryMap) - onDeployment(): All init logic runs under tx gas limit (up to 150B)
- No while loops: All operations are O(1) per user
- Storage optimized: Minimal storage reads/writes per transaction
- Pipeline masks: Bitmask-based pipeline config (no arrays in storage)
- Module isolation: Each module is a separate contract — one failure doesn't cascade
MIT
Built with OP_NET on Bitcoin L1.