Hey

https://github.com/open4dev

NFT Minter with Signature (Tolk) - Beta Release (0.9.1)

Idea
Enable NFT minting only with project approval (via a backend service).

Contracts
- MinterItem - User deploys this contract with a service signature. Verifies signature and forwards to Minter.
- Minter - Validates sender by recalculating MinterItem address. If it matches, tells Collection to mint NFT. (No signature = no mint. Fake contracts can't pass address verification)
- Collection - Standard NFT collection, deploys the NFT item.

Flow
- Service generates signature (includes price and content of NFT)
→ User deploys MinterItem + pays gas and price (if applicable. Price can be 0) via ton-connect
→ Minter verifies message and send on collection contract
→ NFT minted

Features
- Written in Tolk — the modern language for TON smart contracts
- Secure signature-based minting — users can only mint with valid service signatures
- Node.js example with signing service and REST API
- Full test suite with gas cost analysis

GitHub: https://github.com/open4dev/nft-minter-tolk
Bot example: @open4dev_bot

#TON #NFT #Tolk #SmartContracts #OpenSource

DEX Orderbook-protocol (TOLK) - Beta Release (0.9.0)

Idea
Ton contracts for peer-to-peer token trading via decentralized order book.

How it works
- Users place limit orders on-chain (amount + price)
- Orders sit in the order book until a matching counterparty appears
- When buy and sell prices overlap → automatic swap execution (based on matcher service, anyone can be)
- Partial fills supported — large orders can match multiple counterparties

Contracts
- Anyone can be a matcher and earn fees
- Any platform can create orders (with configurable platform and matcher fees)
- Anyone can add token vaults and trading pairs (no admin rights on contracts)

Features in bot (@explore_trade_bot)
- Trade - Create buy/sell orders for TON, USDT, NOT, BUILD tokens
- My Orders - Track open and completed orders with fill percentage
- Market Data - Real-time data of orders
- Instant Notifications - Get notified when your orders are matched

Note: Any tokens can be traded on the order book, but our bot supports TON, NOT, BUILD, USDT to keep a clear interface. Smart contracts have not been audited yet — version will remain under 1.0 (beta) until audit is completed.

GitHub - github.com/open4dev/order-book -> https://github.com/tongateway/orderbook-protocol
Bot example - @explore_trade_bot

#TON #Trading #Tolk #SmartContracts #OpenSource #DEX