ErgoScript Patterns

Battle-tested smart contract patterns for Ergo. Copy, adapt, and ship. From token mechanics to DeFi primitives.

Beginner

Fungible Token Minting on Ergo (EIP-4)

Create a standard fungible token in one transaction using EIP-4

30 minutesView pattern

Beginner

NFT Minting on Ergo (Non-Fungible EIP-4)

Mint a unique NFT with on-chain metadata and image hash

30 minutesView pattern

Intermediate

Token Supply & Burning Pattern (Lifecycle Control)

Design mint/burn rules, capped supply and admin-controlled burn functions

1-2 hoursView pattern

Beginner

Block-Height Time Lock (Timelocked Payments)

Lock funds until a specific block height for scheduled payments

30 minutesView pattern

Intermediate

Sigma OR Access Control (Either-Or Spend)

Spend if key A OR key B or external condition is satisfied

1 hourView pattern

Beginner

Multisig Wallet (M-of-N Treasury Pattern)

Require M out of N signatures to spend from a shared treasury

30 minutesView pattern

Advanced

DAO Treasury & Voting Pattern

Simple on-chain DAO: proposal boxes, token-weighted voting, timelocked execution

1-2 weeksView pattern

Intermediate

Constant-Product AMM Liquidity Pool

Build a Uniswap-style AMM on Ergo (x*y=k) with LP tokens

1-2 weeksView pattern

Intermediate

Cross-Chain Atomic Swap Pattern

Trustless swap between ERG and another chain using HTLC-style contracts

2-4 hoursView pattern

Advanced

CDP / Collateralized Lending Pattern

Borrow stable/credit tokens against locked ERG with liquidation rules

2-4 weeksView pattern

Advanced

Rewards Vault & Liquidity Mining Pattern

Time-based rewards distribution to LP stakers from a single vault

1-2 weeksView pattern

Intermediate

Oracle Data Consumption (Read-Only Oracle Pattern)

Safely read latest price/feed from an Oracle Pool inside a contract

2 hoursView pattern

Advanced

Oracle Pool Aggregation & Medianization

Build an Oracle Pool that aggregates multiple data points and publishes median

1-2 weeksView pattern

Intermediate

Babel Fee Box Pattern (Pay Fees in Any Token)

Use Babel boxes so users pay network fees in arbitrary tokens

2-4 hoursView pattern

Intermediate

Storage-Rent Aware Contract (Long-Lived State)

Design contracts that survive storage rent: state refresh and rent safety

2-4 hoursView pattern

Intermediate

Crowdfunding / Assurance Contract Pattern

On-chain crowdfunding where contributors are refunded if target is not reached

4-8 hoursView pattern

Advanced

On-Chain Auction Pattern (English Auction on eUTXO)

Time-bounded auctions with bids as boxes, automatic winner settlement

1-2 weeksView pattern

Intermediate

Privacy-Friendly One-Time Receive Pattern

Generate one-time addresses/boxes for better transaction graph privacy

2-4 hoursView pattern

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