The Nethermind client is a full service Ethereum execution client written in C#. Developers using Nethermind get to take advantage of their optimized virtual machine, Ethereum state access, and the Nethermind Grafana dashboard. Nethermind's .NET core makes it great for enterprise use and easily integratable into existing systems. 

Infrastructure Tools

Yawww is an NFT marketplace that is secured by a smart contract written in Solana. Users can collect, buy, trade or collateralize NFTs for loans in a peer-to-peer format. Developers can use the platform to lend money to peers. On average, sellers potentially earn 8% more on an NFTs sold on Yawww than other marketplaces.

NFT Dapps

We offer user onboarding for compliance use cases like KYC and KYB. Here we cover all kinds of KYC levels all in one price. Projects can also make use of our liveness solution which guarantees unique users for e.g. airdrops or crypto games without ever revealing the identity of the user.

Identity Tools

With its sleek user interface, Stargate is a distinctive DeFi bridge. The protocol makes it possible to swap two native tokens of two different ecosystems. Users can also contribute assets to the liquidity pool of Stargate and earn real-time stablecoins as rewards. The Stargate token, STG,  has several other utilities as it can also be staked and farmed.

DeFi Tools

Founded in 2017, Binance is the largest cryptocurrency exchange in the world in terms of daily trading volume of cryptocurrencies. Binance enables traders to store and trade using crypto wallets. Developers can access the Binance API to integrate trading features into their programmes, such as spot trading.

Trading Tools

BuidlGuidl is a decentralized autonomous organization acting as the community and incentivization layer around scaffold-eth and speedrunethereum.com. For beginners, Scaffold-ETH provides a base for beginners to experiment with Solidity, while SpeedRunEthereum gamifies the ecosystem through challenges. Developers can participate in these challenges together through the BuidlGuidl community.

DAOs

Taho provides Open Source tooling for the ecosystem, is community owned vs. centralized corporate ownership, applies radical transparency, and is committed to improving wallet UX and Web3 onboarding.

Web3 Wallets

Mirror is a web3 publishing platform similar to Medium, but relying on blockchain based encryption. Publishing is free, and only requires an Ethereum wallet.  The Mirror Dashboard is extensive in its utility, and after creating an account, you have a lot of flexibility with blog post creation.  You can also create a custom url (___.mirror.xyz) by burning one of their tokens and being voted in by the community.

Web3 Social Dapps

The CoinGecko data market APIs are a set of robust APIs. Users can retrieve cryptocurrency data such as price, volume, market cap, and exchange data  CoinGecko API allows developers to power applications with CoinGecko’s independently sourced crypto data such as live prices, trading volume, exchange volumes, trading pairs, historical data, contract address data, crypto categories, crypto derivatives, images and more.

DeFi Tools

Candide is one of the arrays of new wallets sitting on the Optimism blockchain. It abstracted a lot of technicalities and made the use of wallets friendlier. Candide built a simpler and more user-driven wallet by merging the good sides of both centralized and decentralized exchanges. With Candide, an end has come to forgetting seed phrases and losing access to wallets. It has an in-built means where users can confirm their ownership of wallets and access them again. 

Web3 Wallets

The Mumbai testnet is a proving ground for EVM DApps with a flavor of the Polygon main blockchain. The Polygon platform provides developer resources including a starter kit, smart contract templates, and tutorials for beginners to build on top of. Polygon also hosts events open to all Web3 enthusiasts to learn and network with the community.

Blockchains

Certain blockchain operations can be time consuming, if not impossible, for non-devs: (1.) swap or mint without frontend; automatically collect and reinvest DeFi yield; (2.) schedule buy or sell on a DEX; (3.) on-chain data analysis; etc. web3cli is a command-line tool designed for these tasks. It supports EVM chains out of the box and, soon, tokens and contracts. web3cli is for crypto enthusiasts such as DeFi and NFTs degens, Web3 gamers, chain analysts, etc who need to interact directly with the blockchain in a scriptable way. The only requirement is a terminal. The foundations of web3cli and some useful commands are ready. Token send & swap commands are next to come, followed in Q1 2023 by the first commands to analyze on-chain data.

Web3 Developer Tools

Portals is a yield and protocol aggregator API providing transaction bundling, any-to-any swaps, and real-time data for DeFi assets. Portals.fi manages the intricacies associated with composability and ensures that exchanging transferrable assets in web3 is as simple as signing an order, regardless of the complexity (or chain) of the underlying assets. Traders do not need to initiate and babysit multistep transactions, worry about gas, or defend against MEV.

Web3 Developer Tools

Trail of Bits is a blockchain auditing company and open source web3 security tool developer offering a variety of services and products. Trail of Bits helps blockchain companies harden smart contracts, understand contract storage and manage, and identify many potential vulnerabilities. Trail of Bits also builds industry-leading tools for web3 developers including multiple open source web3 security tools like Slither, Manticore, and Echidna.

Web3 Security Tools

The GMX is a decentralized exchange protocol that deployed on two EVM chains, Arbitrum and Avalanche. The utiitty and governance token for its Arbitrum ecosystem is GMX, which generates 13% APR for the users. On the other hand, the token for the Avalanche ecosystem is GLP, which gives around 21% APR. GMX also has an API for developers to tap into its infrastructure.

DeFi Dapps

Blocknative provides a global real-time web3 data platform that is used by builders and traders as a rich framework to access what is happening in web3 transactions right now. Users can use Blocknative to: - gain access to in-flight data and speed up transaction distribution -Easily add ready-to-connect wallets to their dapps – hardware and software wallets are supported. -Using Mempool Explorer, they can also create custom real-time data streams and send them to a webhook.

DeFi Tools

Polygon ID, from the creators of Polygon, enables programmable privacy, a way for users to interact with Web3 services that is decentralized, controlled by users, and privacy-focused. Using their own zkSnark tech to ensure cryptographic protections, Polygon ID achieves a scalable model for permissionless and censorship-resistant digital identities. 

Identity Tools

Founded in 2021, Hyperspace is a Solana NFT marketplace and aggregator. Users can view, collect and sell NFTs across Solana marketplaces within the UI. Developers can use theHyperspace API to integrate endpoints into their projects. Hyperspace charges low trading fees and users can see the rarity of their NFT on the platform. 

NFT Dapps

Formerly Nerve Finance , Synapse Protocol facilitates successful creation of tokens that can be transferable across multiple distinct blockchain networks.  Due to the cross-messaging feature that it has, distinctive blockchains can understand one another and be able to work together.  As a bridge that uses the optimistic engineering model, its transactions are deemed valid until proven otherwise. 

DeFi Tools

Developed by Ox Labs, Matcha is a decentralized exchange (DEX) that aggregates prices from various liquidity sources for smart order routing. These sources are exchange platforms hosted on multiple blockchain networks. As a result, Matcha is able to provide traders with optimum prices and maximize their value received from every trade.  Matcha values transparency. They display all trading costs upfront and don't keep the difference between the quoted and realized prices of trades.

DeFi Dapps

The Hop Protocol is an innovative and intuitive token-bridging application launched in 2021 by Christopher Whinfrey. Hop Protocol allows users to easily send popular cryptocurrencies like ETH, MATIC, and USDT between the Ethereum Mainnet and L2 networks. The protocol currently supports the Arbitrum, Optimism, Gnosis, Polygon, and Ethereum networks. Like many DEXs, Hop Protocol also offers rewards through liquidity provision and supports multiple blockchains.  

DeFi Tools

Zerion is a web3 smart, social wallet, and investing tool that allows anyone with a mobile phone to manage their DeFi and NFT portfolios, with support for every chain and thousands of protocols. Users are offered a single point of entry for managing their digital assets, including NFTs, thanks to a relentless focus on user-centered design and a technology stack that aggregates across every major wallet, network, and decentralized exchange. Because Zerion is non-custodial, users never delegate their funds to the platform. This agile approach reduces the risk of centralization and has allowed Zerion to operate globally since its inception.

Web3 Wallets

Founded by Duncan and Griffin Cock Foster, Nifty Gateway is a digital art online auction platform. Users can buy, sell, create, publish or display NFTs. For developers, Nifty Gateway allows for minting of NFTs and integration of a Nifty Gateway wallet into a NFT project or game. Unlike many marketplaces, Nifty Gateway does not charge gas fees.

NFT Dapps

Solflare is a secure and powerful crypto wallet that provides users with all of the benefits of Solana.  With Solflare users can Buy, send, stake, swap, and trade tokens directly from their phone; use hardware wallets like Ledger, connect to Solana dApps, receive blockchain notifications, and experience a whole new internet.

Web3 Wallets

Sharing content across the blockchain has typically always been done across public networks. With Submarine, creators can make any content unlockable through NFT ownership, geo-location, and more. Within just a few steps, you determine who gets access to your content, when they can view it, & for how long. 

NFT Tools

Sigma Prime has an extensive history in penetration testing of corporate networks, cloud infra, web applications, and are a leading provider of Ethereum smart contract security assessments. Sigma Prime founded and maintains Lighthouse, an open-source implementation of the Ethereum 2.0 specification written in Rust, and are heavily involved in Ethereum 2.0 engineering and research. Sigma Prime contributes to various open source projects and research efforts in the blockchain ecosystem. Our work has been published in several research papers and blog articles. Some of Sigma Prime's clients include Chainlink, Dapper, and AlphaWallet.

Web3 Security Tools

Launched on January 28, 2022, X2Y2 is a decentralized NFT marketplace. Users can use X2Y2 to buy and sell NFTs, for bulk listing, batch purchasing, receiving real-time notifications and viewing rarities of NFTs. Developers can use X2Y2's Open APIs and Javascript SDK to build web3 applications like analytics tools and trading bots. X2Y2 does not offer private token sale and shares the market fees such that 100% of market fees collected are rewarded to X2Y2 stakers.

NFT Dapps

Helius aims to rid the complexity of building on the Solana chain by providing developers APIs for transactions and NFTs, webhooks, and turbocharged RPCs. Developers can build a service that fires notifications or triggers other events when something of effect is registered on the Solana blockchain - such as when a known collector buys new NFTs.

Infrastructure Tools

Echidna is a next-generation Ethereum smart contract fuzzer built the by security solutions company - Trail of Bits. As an evaluation tool, Echidna is known for its unique ‘property-based fuzzing’ which tries to falsify user-defined invariants (properties) instead of looking for crashes like a traditional fuzzer. Echidna comes with a multitude of tools to write custom analyses for complex contracts. Targeted toward EVM bytecode, Echidna uses cryptic compile to test contracts.

Web3 Security Tools

Messari is the leading provider of crypto market intelligence products that help professionals navigate crypto/Web3 with confidence. Users can utilize Messari products to get the most accurate and up-to-date information about the Web3 industry.  Messari Pro offers advanced research and analytics tools for professional investors and Web3 enthusiasts.  Messari has the financial backing of some of the most prominent individuals and venture firms in the industry. 

DeFi Tools

Rust Ethereum ABI is a CLI toolkit for assembling and disassembling function calls and their results.  Developers can check for the predictability of outcomes on smart contract ABIs. As well as reverse engineer the basic ABI from a known contract of the desired output. Rust Ethereum ABI only supports ABIs from the latest solidity compiler versions.

Web3 Developer Tools

SpeedRunEthereum offers a curriculum that teaches you how to write smart contracts and build apps on Ethereum. You will learn the things are best to build on a blockchain and how to do it.

Web3 Developer Tools

Established late 2016 by founder and CTO David Rugendyke, Rocket Pool is a liquid Ethereum staking protocol. Rocket Pool enables users to participate in staking on Ethereum’s consensus layer or ETH2 — users can earn up to 8.24% annually as staking rewards in the form of rETH tokens, which can be swapped at any time.  The protocol is decentralized and governed using the RPL token by a network DAO. Rocket Pool also enables users to stake ETH and operate nodes to validate transactions on the network. In exchange, users earn up to 6.77% annual staking rewards in ETH in addition to RPL rewards.

DeFi Dapps

Mintify has an UI that adapts to your NFT trading habits and makes it extremely easy to track your NFT activity. Further, it's fully customizable with dozens of in-house or 3rd-party modules. You can share your custom trading interfaces with a global community or build your own modules using our SDK.

NFT Tools

Zapper is democratizing the blockchain by allowing users to track their wallets, follow other wallets, and discover all the great applications that Web3 offers through its innovative explorer dashboard.  Discover the most popular NFTs, Defi dapps, and DAOs that Web3 has to offer all in one place. Zapper also allows users to swap tokens or move them to another blockchain network through the Zapper Bridge. 

Trading Tools

Sushiswap is an automated market maker that enables swapping between different cryptocurrencies and tokens through automated liquidity pools across EVM-compatible blockchain networks and Layer-2 solutions. Sushi is one of the largest DeFi solutions and recently has expanded its DeFi offerings, even more, using its native token SUSHI.

DeFi Dapps

From dropping a new collection to creating smart contracts, and managing artist collaborations; Bueno makes it shockingly easy to speed up your NFT tasks. Learn how you can easily turn your art into 10,000 unique PFPs—no code needed.

NFT Tools

Founded in 2017, dYdX is a decentralized exchange on the Ethereum Network. While users can trade crypto assets in the spot market on dYdX, the exchange focuses on providing exposure to advanced crypto products like perpetual and margin trading in addition to borrowing and lending.  In 2021, dYdX Launched a layer 2 protocol based on StarkWare’s zero-knowledge rollups to scale up trading. In 2022, the DEX also announced plans to launch its own independent blockchain based on the Cosmos SDK.

DeFi Dapps

Axelar delivers secure cross-chain communication. That means dApp users can interact with any asset, any application, on any chain, with one click. You can think of it as Stripe for Web3. Developers interact with a simple API atop a permissionless network that routes messages and ensures network security via proof-of-stake consensus.

Infrastructure Tools

Alchemy Notify is a handy toolkit of APIs that register interested parties to notifications and updates when events take place on-chain. Users can set up notifications to get updates when tokens enter a known wallet address. Developers can build notifications into dApps to keep teams up to date with events happening on a blockchain.

Infrastructure Tools

CryptoZombies is an interactive web3 school that teaches users about blockchains focused on Ethereum and Solidity development. Their courses help users earn to write smart contracts by making their own own crypto-collectibles game. Demand for content targeting other chains such as Binance, TRON, and even projects like Chainlink has also led the platform to consider further content expansion. 

Web3 Developer Tools

Cyfrin is group of developers dedicated to enhancing the web3 developer experience that was co-founded by Patrick Collins. Cyfrin offers code reviews that go through smart contracts, tests, and documentation to give developers everything they need to be ready for a full audit. Code reviews include a report of best practices and how to improve code and a checklist on what needs to be done before deploying to mainnet or going for a full audit. Full audits comb through every line of code to make sure that code performs as intended.

Web3 Security Tools

Boardroom is a management dashboard built for active DAO participants and stakeholders. The success and sustainability of DAOs rely on the participation and decision-making of its community, but information is currently siloed across myriad solutions. Boardroom provides voters with access to a comprehensive and user-friendly governance dashboard to increase transparency and participation in the decision-making of your project. Boardroom's Governance API also makes this data accessible to any developer, and the 'Teams' functionality helps organizations have a greater impact with governance management software built to streamline tracking, voting, communications, and reporting workflows.

DAO Tools

Launched by Alex Fleseriu, Exchange Art is an NFT marketplace on the Solana blockchain. Users can search via art categories, participate in auctions, verify tokens and ownership changes on-chain. Developers can list collections and use the Royalities Protection Standard offered by the platform. Exchange Art also allows artists to sell their artworks to a global audience, for a fraction of the traditional gallery cost: just 2.5% per sale, compared to the typical 50-70%.

NFT Dapps

Lodestar provides first-class security while minimizing trust to bring flexible usage to many users. A light client, Lodestar seeks to enable more people to run full nodes without relying on any other parties. Using Lodestar minimizes hardware requirements while giving users direct access to the Ethereum blockchain and censorship resistance.

Infrastructure Tools

UniPass’ mission is to help Web3 apps effortlessly onboard Web2 users. It is a non-custodial smart contract wallet that frees users from seed phrase and gas. Unipass is developing wallet SDKs for all platforms and all kinds of use cases, such as Web3 games and loyalty program like Starbucks Odyssey, to help with the mass adoption of Web3.

Web3 Wallets

Optimism Goerli is the blockchain's public testnet that lets developers test their deployed smart contracts with Optimism Goerli ETH. Developers can leverage Alchemy APIs and webhooks to start developing and testing smart contracts on the Optimism Goerli testnet without expending actual ETH on fas fees.

Blockchains

Wormhole has a modular architecture that works with other chains as its layers.  Wormhole is one of the bridges that connect Solana assets to be useful and interoperable on other chains, which it often terms to be xChain.  Wormhole makes it easier for developers to build both tokens and DApps on a cross-chain architecture for maximal performance. 

DeFi Tools

Snapshot is an open-source tool that organisations, especially decentralized ones, can tap into to facilitate the quality of their voting and proposal processes.  The votes are done off the blockchain, while they are verified on-chain.  Snapshot supports various voting mechanisms including quadratic and approval voting systems. 

DAO Tools

Solbase is a SolDAO project dedicated to improving Solidity smart contracts by providing building blocks for deployment on an open-source model. Solbase contributors can further optimize smart contract snippets, or use the base to fork into their own. The project has +100 stars and contributors and usually shows up-to-date snippets.

Solidity Tools

Space and Time uses a novel patent-pending cryptographic protocol called Proof of SQLTM to enable blockchain applications to generate rich, analytical insights in an entirely decentralized, scalable, and secure manner. A network of node operators gathers data from blockchains, decentralized applications (DApps), and off-chain systems to perform operational and analytical computations, querying on-chain and off-chain data in a single, trustless environment.

Infrastructure Tools

Goerli was the first Ethereum test net, is cross-client, and features all the mainnet features in a safe environment for development and testing. Developers making Ethereum-destined DApps first deploy to the Goerli testnet for no gas fees to make sure their use cases are well-met before deploying to the mainnet for immutability.

Blockchains

MixBytes' mission is to making DeFi more efficient and secure. MixBytes' auditing services include investigations into all types of logical errors, inconsistencies, and vulnerabilities, as well as recommendations to address each of them. A group of security engineers are involved in working on the audit, and they check the provided source code independently to: audit the project architecture, review code against a vulnerabilities checklist, check code for security model compliance, prepare a report, fixe bugs, re-audit contracts, and a prepare a final code verification and public audit report. Customers include Aave, Yearn Finance, Curve, 1inch, PowerPool, and more!

Web3 Security Tools

GasHawk offers an innovative solution to a major challenge faced by users and institutions on the Ethereum network: high and volatile transaction fees. By monitoring the network and predicting the optimal time to submit a transaction, GasHawk can save users and institutions up to 95% on gas fees. As a non-custodial service, GasHawk aims to help users and institutions optimize their transactions during periods of low fees while preparing for future price volatility. They currently provide minimized transaction costs, eliminate stuck transactions, prevent transaction failures, and ward off front-running or sandwiching. GasHawk is an MEV-resistant, gas rebate RPC layer with the capacity to grow its product offerings and value add exponentially.

DeFi Tools

Dune provides blockchain ecosystem analytics by and for the Web3 community. With Dune, data can be shared and explored from Ethereum, xDai, Polygon, Optimism, BSC and Solana chains for free. Users can utilize the already made dashboards to display all kinds of different analytics regarding Defi projects, dApps, and NFTs.  If users want a specific analytics dashboard for a certain Web3 project, they can also create and customize their own. 

DeFi Tools

Fireblocks combines MPC-CMP with hardware isolation to create a multi-layer security technology. This eliminates a single point of failure and insulates digital assets from cyber-attacks, internal collusion, and human error. Customers and investors want instant access to funds. Fireblocks' MPC-CMP algorithm helps you meet client SLAs regardless of your wallet configuration. Send and receive transactions at scale without massive operating costs. 

Web3 Wallet Tools

WatchPug is a smart contract security team with the goal of elevating the security, privacy, and usability of the current DeFi ecosystem. WatchPug offers  in-depth smart contract security audits as well as 1-day security reviews.

Web3 Security Tools

VectorDAO is a DAO made up of amazing developers who have contributed to projects such as Coinbase, Marginfi, Hashflow, and more.  What makes VectorDAO unique is that, in exchange for their development services, they never take cash, instead only taking equity in projects. In this sense, VectorDAO can be thought of as a venture builder, building out promising projects in exchange for gaining equity. If you're a project creator who is looking to outsource some building, you should definitely check out VectorDAO to see what they have to offer. 

DAOs

Farcaster is a fully decentralized social network. It is an open protocol that supports many clients, similar to mailboxes. Users can freely migrate social identities between applications, and developers can freely build applications with new features on the network. On Farcaster, you can send short text message broadcasts that connect to your Ethereum address. Verifying address ownership enables a range of features, including showcasing your NFT, using your NFT as a verified avatar, and more. 

Web3 Social Dapps

Introduced by a popular NFT marketplace OpenSea in May 2022, Seaport is an open-source Web3 protocol focusing on trading safety and efficiency. Developed with Solidity Assembly language, Seaport takes a novel approach to transactions, allowing offers to include both cryptocurrencies and NFTs. Additionally, it also introduces easier transactions by allowing partial fill orders, tipping, and advanced filtering capabilities, all while eliminating redundant transfers. 

NFT Tools

A Transmissions11-hosted repository of solidity smart contract writing tools and libraries for authentication, token, utility, and vault building blocks. Developers can refer to the smart contract implementations in Solmate to leverage better security standards, quicker testnet deploys, and faster DApp to market rates. Solmate has +2k stars on GitHub and hundreds of users and contributors.

Solidity Tools

Sorare is a fantasy sports game where players buy, sell, trade, and manage a virtual team with digital player cards.

Decentralized Games

One of the most popular toolkits for Ethereum development, Foundry is rapid, modular and portable. Essentially, Foundry is a reinvention of the dapp.tools testing framework. Written in the Rust programming language. Foundry is designed to be accessible, simple to install, and requires no complicated configuration or third-party libraries.

Web3 Developer Tools

Vyper is a repository of two smart contracts that show the Vyper language implementation of voting and time lock smart contracts. Developers gain governance platform-building experience when reviewing the code. The repository has active/good commits history albeit being managed by just two contributors.

Solidity Tools

The Solana Explorer is a Solana blockchain explorer. Users can use it to view transactions, blocks, programs, tokens and accounts across Solana clusters. Developers can use the devnet cluster to enable devloper settings, use the testnet and test dapps or connect to a custom RPC URL. 

Web3 Developer Tools

Friends with Benefits (FWB) DAO is a token-gated community that uses Web3 tools to foster culture and creative agency. The FWB token allows for community ownership and participation. Membership is obtained through the application.  If accepted, an FWB token holder can become a Global Member by holding 75 FWB tokens, which grants them unrestricted access to the entire FWB ecosystem, or a Local Member by holding 5 FWB tokens, which grants them limited access to FWB Cities and Events.

DAOs

Spearbit is a decentralized network of security experts that offer web3 security consulting services. Spearbit's network is sourced from top talent from everywhere in the web3 ecosystem, and is heavily invested in mentoring new security researchers, who get the opportunity to work alongside and learn from some of the most prominent names in the industry. Spearbit offers one-off security reviews by hand-selected team of experts and recurring security reviews in the form of a retainer agreements.

Web3 Security Tools

Kevlar is a client-side running RPC that places a layer of verification between an RPC-based wallet and every other transaction call with access to make requests to said wallet. Your wallet becomes trustless. Users with Kevlar installed and attached to their wallets go through block header verification as a net to catch all malicious transactions.

Web3 Wallet Tools

GUN is a small, easy, and fast protocol for syncing data and encrypting it safely. It works well with both SQL and NoSQL like data, and uses cryptography to secure the data itself, not the servers.  It uses the concept of a Public space, User space (where only the owner can write), and a Frozen space (one time write, everyone can read) to ensure decentralization works at a lower level.

Web3 Gaming Tools

Soul Wallet is an innovative smart contract wallet designed to provide users with a more seamless and efficient experience on the Ethereum blockchain. By leveraging the ERC-4337 standard and focusing on Layer 2 scaling solutions, Soul Wallet is well-positioned to cater to the needs of a growing decentralized ecosystem. Through Soul Wallet, users can access dApps effortlessly with a browser plug-in, enjoy the security of social recovery, and experience stablecoin gas fees for added convenience.

Web3 Wallets

Emojam is like GIPHY for web3 but with sound and original content that creators monetize as NFTs. Fans can now own audio stickers as NFTs and flex them in their everyday conversations on web2/web3 platforms.

NFT Tools

Zellic is a blockchain security and auditing company that aims to provide the best blockchain audits for projects across multiple networks, including Solana, Ethereum, Cosmos, etc. Projects and companies, including Solana Foundation, SushiSwap, Aptos, LayerZero, and many more, rely on Zellic to secure over $3 billion. 

Web3 Security Tools

Cairo is a Turing-complete smart contract programming language that gives developers the framework to wield the power of STARKs. Developers can start writing Cairo smart contracts in the playground, use tutorials on the language's platform, or leverage Cairo wizards from OpenZeppelin to build out the logic behind DApps.

Web3 Developer Tools

Remix is an all-inclusive IDE for developing on Ethereum, as it supports several EVM-compatible languages such as Cairo, Vyper, and Solidity. It is not limited to its native environment but has a VS Code extension as well. Remix has a lot of tools for developers, including its debugger, analyzer, libraries, and resolvers.

Web3 Developer Tools

Launched by the world’s largest NFT marketplace OpenSea in 2018, OpenSea API is a set of developer tools enabling users to create custom marketplaces powered by Ethereum smart contracts.  Developers can create auctions in any currency, including their own tokens, and collect analytics with OpenSea.js. An NFT must be ERC721 or ERC1155 compliant to list on the marketplace.  OpenSea is free, but to get an OpenSea API Key, developers need to fill out an application form. 

NFT Tools

Although they're audited, this library of Huff contracts is an experimentation of what the language can achieve. Developers can start using the smart contracts for auth, data structures, proxies, huff-cloning, auctions, math operations, token creation and transfers, and a handful of other util use cases.

Solidity Tools

Launched in 2021, Solana-based Marinade Finance is a liquid staking platform that enables users to earn yield on SOL tokens. Users can stake SOL to secure the Solana network and keep it decentralized, and receive marinated SOL or mSOL in return. Users’ mSOL holdings increase as the underlying SOL collects staking rewards. Marinade users can also use mSOL across the Solana ecosystem and stake them for additional yield or swap them for SOL at any time.  The Marinade ecosystem is governed by a DAO using the MNDE token, which can be locked to mint Chef NFTs that are used to vote. As of November 2022, there are over 450 validators on Marinade's network.

DeFi Dapps

Here is a collection of EVM puzzles on Github. The solution to each puzzle hinges on sending a successful transaction to a contract. The bytecode of the contract is provided, and you need to fill in the transaction data that won't revert the execution.

Web3 Security Tools

Arbiscan is an Arbitrum blockchain explorer. Users can track their money and transactions with Arbitrum. Developers can use information about transactions on Arbitrum blockchain, addresses, tokens, prices and other activities taking place on Arbitrum for dapps. Arbiscan is the leading block explorer for the Arbitrum network and is designed for the Arbitrum network exclusively.

Web3 Developer Tools

Founded in 2014, Ledger is the global platform for digital  assets and web3. Over 20% of the world’s crypto assets are  secured through Ledger Nanos. Headquartered in Paris and  Vierzon, with offices in London, New-York, Singapore and  Portland, Ledger has a team of more than 700 professionals  developing a variety of products and services to enable  individuals and companies to securely buy, store, swap and  manage crypto assets - including the Ledger hardware wallets  line with more than 5 million units already sold in more than    180 countries. Ledger combines a hardware wallet: Nano S Plus or Nano X and the  Ledger Live app to offer consumers the easiest way to start their  crypto journey while maintaining full control over their  digital assets. With its ease of use, Ledger allows a user to  begin investing in digital assets and ultimately, achieve  financial freedom in a safe and stress-free environment, with  additional education provided by its Academy. In addition to  consumer products, Ledger has also developed Ledger Enterprise,  a digital asset custody and security solution for institutional  investors and financial players.

Web3 Wallets

Halborn provides blockchain security solutions, including security advisory, advanced penetration testing, smart contract audits, and DevOps and automation services. Halborn was founded in 2019 by renowned ethical hacker Steven Walbroehl and growth hacker Rob Behnke. The company has now grown to over 100 of the world's best offensive security engineers. 

Web3 Security Tools

With a team of 60+ certified engineers, Hacken provides solutions encompassing all aspects of blockchain security, such as Smart Contract Audit, Blockchain Protocol Audit, dApp Audit, Penetration Testing, and CCSS Audit. Since 2017, Hacken has been raising the bar for blockchain security by contributing to security standards and championing transparency in 1,200+ Web3 projects.

Web3 Security Tools

The Wei converter from Alchemy is a simple and easy-to-use tool for converting between Wei, Gwei, and Ether. The page housing this tool provides a comprehensive explanation of these different units and their relationship to the expenditure of Gas in the Ethereum ecosystem.   Using the Alchemy SDK, developers are able to use this conversion tool in their IDE when developing smart contracts.

Solidity Tools

BitGo is an institutional digital asset custody, trading, and financial management service provider. Traders can secure private wallets and custody credentials with BitGo. Developers can bring the functionality of BitGo into their use case applications by calling APIs and connecting webhooks from the open-source projects

Web3 Wallet Tools

Created by Patrick Ventuzelo, Octopus analyzes closed-source WebAssembly and smart contracts bytecode to expose their internal functions. Users can use Octopus to conduct vulnerability research by communicating with chains through an explorer. Octopus stands out by providing comprehensive custom obfuscation solutions for L1 and L2 projects and providing free security training.

Web3 Security Tools

Wagmi is a collection of React Hooks containing everything you need to start working with Ethereum. Wagmi makes it simple to connect your wallet, display ENS and balance information, sign messages, interact with contracts, and much more — all with caching, request deduplication, and persistence. Developers can inject functionality with webhooks available in the Wagmi npm package. Wagmi is supported by GitHub sponsors and a Gitcoin grant.

Infrastructure Tools

The Otterspace app is a DAO management and badge credentialing app optimized for DAO communities.  Community managers can use the Otterspace app to integrate more nuanced forms of membership and governance to their DAO, plus automatic distribution of permissions, non-financial rewards for community members and clearer pathways for joiners. Bankless DAO, Radicle DAO, and more use Otterspace to manage an effective non-financial DAO community. 

Identity Tools

The Raindrops Protocol is a series of five a la carte contracts that govern on-chain or proof-on-chain data specifically for games, allowing any player or item to be interchangeable with any game client that can process them. The Solana ecosystem has a fragmented and very customized way of storing in-game assets on-chain, with many different formats. But the Metaplex Protocol's methods of storing ordinary NFT data are standardized. The aim of Raindrops is to do the same thing for game assets.

Web3 Gaming Tools

Solvm is a stripped-down implementation of the Ethereum Virtual Machine (EVM) built on top of the EVM using Solidity and Yul (an intermediate language to compile smart contracts written in solidity). Built for fun, as a memory management challenge,  Solvm uses a dynamic in-memory array for the EVM’s simulated stack variables and stores the simulated EVM memory at a moveable offset. 

Solidity Tools

Cashmere is a multi-signature wallet on Solana. The wallet's main use to to allow organizations to manage their funds easily. The wallet supports both SOL and all SPL tokens and can integrate with all Solana wallets, hardware or software. Internally, Cashmere’s multi-sig uses a concept called Program Derived Addresses, which is a program that may be given the authority over an account and later transfer that authority to another.

Web3 Wallets

Launched in 2019, MoonPay offers a fast and simple way to buy and sell cryptocurrencies. It enables users to purchase and sell cryptocurrencies using traditional payment platforms (i.e. Visa, Mastercard, etc.). In its line of products, MoonPay also provides a business payment on-ramp and an NFT payment processor. 

Web3 Wallet Tools

Secure3 organizes audit contests to provide affordable, efficient, and secure audit services for Web3 projects. Popular Web3 projects and companies like OKX, ZettaBlock, BitMart, zkSync, etc., trust Secure3. The auditing process at Secure3 is a three-step process: (1.) Projects give the time and budget for the audit; (2.) Secure3 organizes and monitors the contest where Secure3 recommended auditors compete to find vulnerabilities; (3.) Secure3 delivers the final audit report.   

Web3 Security Tools

Origin Dollar simplifies DeFi by eliminating the need for staking or lock-ups. Hold OUSD in any Ethereum wallet and watch your balance increase every day.

DeFi Dapps

There are millions of traditional apps out there and not every development team wants to learn how to program solidity or buy and hold crypto. The Ownerfy minting API is plug and play. These apps can make NFTs, transfer NFTs, make smart contracts using traditional skills and without the liabilities of holding crypto currency.  Ownerfy uses a proprietary co-custodial private key solution backed up by MPC security.

NFT Tools

Yield Yak auto-compounds farming rewards to help you earn more from your deposited assets. Some of the most popular auto-compounding pools include USDC and USDT stablecoin pools, native Avalanche tokens, and boosted farms on Trader Joe. Yield Yak also provides a decentralized exchange (DEX) aggregator called Yak Swap, a liquid staking tool, and Yak Pools.

DeFi Dapps

Founded by top-notch security researchers, BlockSec is creating blockchain security infrastructure with its security services and tools. The company has published several blockchain security papers at popular conferences and saved cryptocurrencies worth over 8 million dollars by preventing multiple attacks. BlockSec has also reported multiple viral zero-day attacks on DeFi apps. BlockSec has collaborated with renowned applications like MetaMask, Compound, Cronos, Forta, Tokenlon, KeyStone, Gopius, and more. Their products include: (1.) Smart Contract Security Audit; (2.) Phalcon - Advanced DeFi transaction explorer: (3.) Mopsus - Pre-execution service to detect risky transactions; (4.) Rustle - Automatic static analyzer for smart contracts on NEAR; (5.) MetaDock - A browser extension for crypto users; (6.) MetaSleuth - Visualization and analysis tools for crypto funds.

Web3 Security Tools

Take all of Ethereum with you in your pocket. Create your Ethereum wallet, buy and sell ETH and other crypto, swap and trade crypto tokens, hold, send and receive ERC-20, ERC-721, ERC-1155 tokens. Exchange crypto, stake crypto and earn rewards, browse the decentralized web, use DeFi and Web3 sites.

Web3 Wallets

Stackup makes it easy for developers to use account abstraction and smart contract wallets to simplify blockchain for their users. Using Stackup's SDKs and EIP-4337 infrastructure, developers can create custom transaction experiences. Stackup enables gasless transactions, allows you to instantly create wallets for your users using social logins on any EVM blockchain, and lets you make any sequence of transactions one click.

Web3 Wallets

Storj is an S3-compatible platform and suite of decentralized applications that allows you to store data in a secure and decentralized manner. Your files are encrypted, broken into little pieces, and stored in a global decentralized network of computers. Luckily, we also support allowing you (and only you) to retrieve those files!

Infrastructure Tools