ErgoScript Patterns

Smart contract patterns for Ergo, with maturity badges. Copy, adapt, and check each pattern's status before relying on it for production.

Beginner

Educational

Fungible Token Minting on Ergo (EIP-4)

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

30 minutesView pattern

Beginner

Educational

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

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

30 minutesView pattern

Intermediate

Educational

Token Supply & Burning Pattern (Lifecycle Control)

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

1-2 hoursView pattern

Beginner

Educational

Block-Height Time Lock (Timelocked Payments)

Lock funds until a specific block height for scheduled payments

30 minutesView pattern

Intermediate

Educational

Sigma OR Access Control (Either-Or Spend)

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

1 hourView pattern

Beginner

Educational

Multisig Wallet (M-of-N Treasury Pattern)

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

30 minutesView pattern

Advanced

Educational

DAO Treasury & Voting Pattern

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

1-2 weeksView pattern

Intermediate

Used historically

Constant-Product AMM Liquidity Pool

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

1-2 weeksView pattern

Intermediate

Educational

Cross-Chain Atomic Swap Pattern

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

2-4 hoursView pattern

Advanced

Educational

CDP / Collateralized Lending Pattern

Borrow stable/credit tokens against locked ERG with liquidation rules

2-4 weeksView pattern

Advanced

Educational

Rewards Vault & Liquidity Mining Pattern

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

1-2 weeksView pattern

Intermediate

Educational

Oracle Data Consumption (Read-Only Oracle Pattern)

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

2 hoursView pattern

Advanced

Educational

Oracle Pool Aggregation & Medianization

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

1-2 weeksView pattern

Intermediate

Used in production

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

Educational

Storage-Rent Aware Contract (Long-Lived State)

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

2-4 hoursView pattern

Intermediate

Educational

Crowdfunding / Assurance Contract Pattern

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

4-8 hoursView pattern

Advanced

Educational

On-Chain Auction Pattern (English Auction on eUTXO)

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

1-2 weeksView pattern

Intermediate

Educational

Privacy-Friendly One-Time Receive Pattern

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

2-4 hoursView pattern

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