Harmony Stack and Projects

The goal of this page is to provide an overview of the open-source Harmony Tech Stack.

This is a living document and we are relying on our community to contribute to it and help maintain it. Please feel free to make edits and additions via pull requests. We apologize if we missed your project!

• About

• Layers of Harmony Stack

  • User Interface

  • Tools, APIs and Languages

  • Bridges, Fiat Gateways, Exchanges

  • Platform Modules

  • Crypto Projects

  • Signatures

  • Core Harmony Protocol

• Contributing

About

The Harmony Tech Stack consists of the open-source technologies contributing to and relying on Harmony. It is meant to be used for decentralized application (Dapp) development within numerous verticals including DeFi, Gaming, Provenance and many others not pictured below.

Layers of Harmony Stack

In the below sections you can find a list of different layers of the Harmony Stack.

User Interface

Components	Existing projects	Potentially interesting projects
Wallets	Magic	social recovery & one-time-password authenticators for on-chain fund basic income & wealth from fixed-rate or high-yield investments User-friendly Wallet based on open millions to self-custody assets & collectibles without hardware, password or hack Composable Authentication Social onchain recovery EIP-2938 Account abstraction implementation on-device privacy Keyless Security web3 integrations Harmony Argent Integration
Browser Extensions	Harmony One Wallet, Math Wallet, Metamask
Mobile Wallets	Frontier wallet, Cobo Wallet, Math Wallet, Guarda, Edge, imtoken
Hardware Wallets	Ledger, Trezor, SafePal
Block Explorers	Harmony Explorer	Modular Explorer supporting HRC20 and HRC721
Validator Dashboards	Smartstake
Staking Rewards	Smartstake
Analytics	The Graph	Dune Analytics Integration

Tools, APIs and Languages

Components	Existing projects	Potentially interesting projects
Easy Smart Contract Development	Truffle, Remix, Hardhat
API		API for Cross Chain Aggregation
Client Libraries
Runtime Security		Automated Runtime checking tools, economic audit simulator such as gauntlet.xyz

Bridges, Fiat Gateways, Exchanges

Components	Existing projects	Potentially interesting projects
Bridges	Ethereum , Binance, Polkadot - Edgeware	Trustless ONE BTC Bridge Celo Optics Bridge Solana Wormhole Bridge Cosmos Gravity Bridge Terra Shuttle Bridge DCRM Multichain Bridge
Fiat Gatways	Wyre, Swapzone, Changelly, switchchain, swft, SimpleSwap, simplex, transak
Exchange Gateways	Coinbase Rosetta	Rosetta API Extension

Platform Modules

Components	Existing projects	Potentially interesting projects
Security	Gnosis, CertiK, PeckShield	coq verified execution information-flow: compositional reentrancy session types: language design smt: gas fee optimizer
Oracle	Band Protocol
Privacy
Governance/DAO	Harmony Governance
Cross Chain		Cross Chain Arts and Collectibles
Finality		Madhi Zamani Instachain one second finality
Name Service	1.country

Crypto Projects

Components	Existing projects	Potentially interesting projects
DeFi / Lending	Harmony Lend, Sushi, AAVE	DEX with privacy and confidentiality features such as those found in a dark pool
Automated Market Makers	harmony swap, sushi, or swoop aggregator
NFT	Harmony One Punks	NFT as a wallet profile
MarketPlaces	lma-art-gallery	ONE World: Geospatial NFT Marketplace Smart Markets for NFT'S
Fixed Rate Income		Staking Derivatives Fixed Rate Lending Interest Rate Markets Security Tranches
Cross chain DeFi		Interest Free Stablecoin variable-rate lending Gas Fee Relay Privacy Mixer
Staking
Staking Derivatives	Stafi
Insurance	DSLA Protocol
Lottery	High Stakes TAC Alpha Lottery
Charity
Real Estate	Monopoly
Gaming	Knight and Peasant
Travel	Travala
Gambling
Payroll		Decentralized Payroll Management for DAO's
Identity/DID	Hypersign Identity
Social Networking		Social Referral
Governance/DAO	snapshots
Other	Knit Finance, MakiMoon, harmony validators

Signatures and Cryptography

Components	Existing projects	Potentially interesting projects
Cryptography		evmcurve bls12-381
Key Value Commitments		Key Value Commitments
BulletProof		EVM Mixer with Bulletproofs
Privacy		poseidon hash precompile using curve25519
Light Clients		superlight client, bootstrap without header sync lightclient: epoch synch
Zero Knowledge		zksnark: plonk
ethereum rollups		zero knowledge proofs zk porter l2 scaling zk-zk-rollup l2 for private transactions

Core Harmony Protocol

Components	Existing projects	Potentially interesting projects
Networking		quic data transport hipv2 node identity raptorg multicast nkn message broadcast Data Availability

Contributing

Pull requests, issues, or other contributions from the community are encouraged! You can not only add specific projects, but also potentially interesting fields/areas which are currently missing in the tech stack.

:heavy_exclamation_mark: All technologies listed above need to be open-source. Ideally, the links lead directly to the code.

Note: You will need a GitHub account to suggest changes or open issues. If you do not have one, you may sign up for free.