Polkadot Applications and Developer Tools
Explore some of the best decentralized Polkadot applications and Polkadot developer tools. Whether you're a web3 developer or simply web3 curious, this directory includes some of the top Polkadot dapps and projects.


Collab.Land
Collab Land is a standardized bot for community management and engagement. The bot can be added to either Telegram or Discord communities. The most unique feature of the Collab Land is that it tracks and only gives membership access to those who hold your token, automatically kicking out anyone who sells them.
NFT Tools

Alchemy
Alchemy provides the SDK and APIs to build multichain Web3 DApps, and the skills to use them through a community/university-like initiative. Developers can use the free tools to create smart contracts for multiple use cases and multiple blockchain targets. Alchemy has inspired +$100 Billion worth of transaction value on-chain, with north of 10M end users, and royalties upwards of $1,5B.
Infrastructure Tools

Nansen Portfolio
Create unlimited DeFi portfolios by bundling wallets across over 40 chains and over 500 protocols! Connect your wallet and get an in-depth view of your DeFi holdings powered by data from Nansen. Gain insights from Nansen's 240 million labeled wallets and comprehensive data analytics.
Trading Tools

Dfns
Dfns is the most secure wallet-as-a-service infra founded in 2020 in Paris. Dfns is Techstars-backed, SOC 2-certified, and has raised over $20M since its creation. Dfns is an API-first KMS designed to provide app developers with secure, plug-and-play access to blockchains based on an decentralized, MPC-driven key management network with built-in recovery mechanisms, operated by error-and-attack-resilient tier 3+/4 data centers. Dfns is designed with focus on developer experience to maximize programmability, minimize high-touch implementations, and provide granular sets of permissions, controls and policies via secure API credentials (encrypted WebAuthn 2FA). We support 40+ blockchains and 1,000+ tokens.
Web3 Wallet Tools

MixBytes
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

Fireblocks
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

Hacken
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

Ankr
The first thing any beginner Web3 developer needs is a high-quality connection to the blockchain. Ankr offers high-performance RPC API connections to 30+ blockchains with advanced tools and services that builders can use to take their projects to the next level. With high-performance node infrastructure distributed across the globe, Ankr powers decentralized applications for the fastest, most reliable experience possible.
Infrastructure Tools

Certik
CertiK is a blockchain security technology company at the forefront of research and development. CertiK is a pioneer in blockchain security, employing cutting-edge Formal Verification technology on smart contracts and blockchains. It protects and monitors blockchain protocols and smart contracts by leveraging best-in-class artificial intelligence (AI) technology. CertiK was founded in 2018 by professors from Yale University and Columbia University with the goal of securing the web3 world.
Web3 Security Tools

libp2p
Libp2p is a system of protocols, specifications, and libraries designed specifically to address the challenges of building peer-to-peer applications. Developers can use libp2p to maintain networks with peer identity, secure communication, peer routing, and more. Libp2p's powerful and flexible network tooling powers large projects such as IPFS, Substrate, and Polkadot.
Web3 Developer Tools

ChainSecurity
ChainSecurity offers smart contract and blockchain protocol security products and services, as well as research and development in security, program analysis, and machine learning. The company is responsible for the well-known smart contract analyzer, Securify, as well as the smart contract verifier, VerX. Crypto projects rely on ChainSecurity's detailed audits to ensure the highest level of security for their smart contracts and protocols.
Web3 Security Tools

Proxy
Proxy breaks into the DeFi space from a multichain perspective - combining the lego of various ecosystems such as Polkadot, Ethereum, and Cosmos. These cross-chain derivatives give users a wider range of options for assets to trade and lend. Depending on the Proxi tokens they have, the users can borrow up to 200% of any token and pay it back later.
DeFi Dapps

Akropolis
Founded in 2017, Akropolis aims to provide an autonomous financial ecosystem for saving and growing wealth through its decentralized finance protocol. Its products include AkropolisOS, a framework for developing for-profit DAOs, Sparta, a platform for uncollateralized lending, and Delphi, a yield farming aggregator and dollar-cost averaging tool. For protocol governance across its suite of products, the project employs an ERC-20 token called AKRO.
DeFi Dapps

Lido
Lanched in December 2020, Lido is the leading liquid staking platform that enables users to earn interest on their cryptocurrencies across multiple blockchains. The Lido DAO governs the protocol, including choosing node operators and fees and ensuring security. When Lido users stake their assets on the platform, they receive a liquid token, like stETH, that can be used across decentralized finance (DeFi) applications and even staked for additional yield. Traditionally, staking assets means locking them up, but Lido maximizes user earning potential by allowing them to keep using the liquid tokens across DeFi. Lido is focused on Ethereum but also supports Solana, Kusama, Polkadot, Polygon, and Terra.
DeFi Dapps

Triangle
Founded by Tasti Zakari, Triangle is a wallet API infrastructure intended to harmonize and secure wallet integrations among various blockchain protocols. Triangle allows users to carry out DeFi and NFT payments more seamlessly. Their API is open for developers to always call and integrate into their DApps. In terms of security, Triangle uses a novel multi-party computation to be battle-tested.
Web3 Wallet Tools

TrustWallet
Viktor Radchenko founded Trustwallet to create an inclusive and multi-chain wallet that an average user, or even a complete newbie, can easily navigate. Trustwallet is integrated into a lot of DApps, including PancakeSwap, 1inch, Looksrare, and a host of others. Thus, it is easy for the users to access these platforms right within their Trustwallets. Trsutwallet has almost everything a crypto degen might need, including charts to track prices within the app.
Web3 Wallets

zCloak Network
zkID Login is a product launched by zCloak Network. It is a multi-chain decentralized identity tool that allows users for secure and easy login. The platform currently works as a browser extension and users can store any Verifiable Credential in zkID Wallet. These credentials can be accessed with common APIs, making the wallet easy for developers to work with.
Identity Tools

ONT ID
Ontology’s ONT ID is a Web3 identity framework based on the W3C recommendations for decentralized identifiers and verifiable credentials. Using blockchain and cryptographic technology, it can quickly identify and connect people and data.
Identity Tools

Aleph.im
Aleph is a decentralized file storage protocol that supports a lot of popular blockchains, including Solana, Cosmos, Ethereum, and Polygon. With just a couple of lines of code, Aleph enables its users to securely access off-chain data sources. Unlike AWS, the file storage of Aleph cannot be tampered with because it is right on the blockchain. As a result, the users truly own their data.
Infrastructure Tools

Chainsafe
Chainsafe provides a Web3 games development suite and provides secure decentralized file storage backed by the Filecoin network. Users can use the Chainsafe file storage service for encryption-secured file storage on a decentralized model. Developers can use Web3.Unity product offered by Chainsafe to create in-game marketplaces, NFT assets, and so much more.
Infrastructure Tools

Tatum
Tatum is a platform that offers Web3 developers an SDK packed with tools to deploy fully functioning dApps with ease. Developers have attested to transiting from design briefs to working dAps's in less than a week. Supports +40 protocols, contains +1200 modular functions and provides unlimited scalability for all dApp's.
Web3 Developer Tools

De.Fi
De.Fi is a decision support tool for investors/traders backing dashboard interfaces with real-time and historic data for analysis. Users connect their wallets to get historical transaction data shown, along with all the funds currently stacked/farmed. Grants access to audit information querying from +52 blockchains, +414 protocols, and more tokens than you'd care to count.
Trading Tools

Deeper Network
The Deeper Network creates infrastructure to decentralize VPNs while protecting networks and making them profitable by bandwidth farming for token rewards. Purchasing the hardware VPN connects you to the network, and secures your connections and connected devices. The Deeper Network has +80,000 nodes worldwide selling to +150 countries to defend their network from +100,000,000 threats.
Identity Tools

CoinStats
CoinStats is the world’s leading crypto portfolio manager. More than 1.2 million active users track their crypto, DeFi, and NFT assets in real-time every month. Users can track their assets by connecting more than 300 wallets and exchanges to CoinStats. They can also store, buy and swap crypto through the CoinStats DeFi wallet. Currently, more than $100m worth of assets are managed through the app. CoinStats has a mission is to empower people to effectively manage their crypto portfolio via an easy-to-use platform.
Trading Tools

Bitwave
Bitwave is the first digital asset finance platform designed specifically to manage the intersection of cryptocurrency tax, accounting, and compliance, enabling the financial revolution made possible by cryptocurrency.
Web3 Wallet Tools

DappLooker
Dapplooker solves the problem of complex and technical blockchain data analysis by providing a user-friendly, no-code platform for analytics and visualization. With Dapplooker, users can easily understand smart contract data, perform analytics, and create beautiful charts and dashboards for visualizing it. This empowers individuals and organizations to gain valuable insights from their blockchain data without needing technical expertise. Dapplooker can be used for various use cases, including monitoring transactions, tracking user retention, and identifying trends.
DeFi Tools

GateFi
GateFi processes transactions directly for a fraction of the cost of traditional on-ramps as they are a principal member of all major card networks and have access to 1000+ alternative payment methods.
Web3 Wallet Tools

ReWallet
ReWallet helps users regain access to their crypto wallet in cases of forgotten passwords, problems with seed phrases, lost/damaged files, and more. ReWallet works on a pure success basis, meaning users only pay if their wallet is successfully recovered.
Web3 Wallet Tools

CyBirb
CyBirb, powered by Avalance - a leading cybersecurity firm, has taken steps to secure the web3 space. The cyber security solutions offered by CyBirb cater to both on-chain and off-chain services. From identifying vulnerabilities in smart contract code to constantly monitoring blockchain projects - CyBirb removes bottlenecks, identifies threats, and offers solutions to secure the projects, users, and ultimately web3. CyBirb offers a one-stop solution that caters to all the needs of a cryptocurrency project. The firm offers solutions pertaining to services and products of the blockchain ecosystem. This includes DeFi projects, exchanges, oracles, crowd sales, blockchain networks, etc. It also extends its support for wallet tracing to oversee compliance and safeguard transactions. The typical cybersecurity solutions in web2 primarily involve testing the product before its deployment and blocking the network in case of a threat. However, the traditional solutions no longer apply to the web3 innovation. The blockchain systems, based on web3, require thorough testing and monitoring of the smart contract code before its deployment, as it is difficult to stop the blockchain network. This is why CyBirb also facilitates penetration testing programs and smart monitoring, which works to identify anomalies to resolve them and secure the source code. Web3 provides a new approach to the internet for companies, users, and solutions. Subsequently, it is necessary to take a different approach for cybersecurity in web3 as well. The cybersecurity solutions of CyBirb ensure that the space can innovate with the least amount of friction.
Web3 Security Tools

ShellBoxes
ShellBoxes is a smart contract/dAPP security audit firm. Their mission is to ensure the security of decentralized projects, as security incidents are becoming more of a recurring event, Shellboxes helps organizations, enterprises, startups, and project holders to stay safe and protect their innovative projects and community.
Web3 Security Tools

M1 Capital
M1 Capital has developed two funds. The first fund can be used by investors to easily gain strategic exposure to the digital asset space while safely obtaining staking yields. The second fund provides market-neutral returns in the digital asset space by using multiple arbitrage trading strategies.
Venture Capital Firms

Blaize.Security
Blaize.Security provides blockchain and smart contract auditing services and operates the most up-to-date technologies to build a safe environment for blockchains and dApps. Blaize has over five years of experience working with more than 15 different blockchain ecosystems and has successfully delivered more than 120 security audits.
Web3 Security Tools

Cryptoworth
Cryptoworth solves the problem of organizing the entire crypto financial operation into one uniform ledger for automated bookkeeping, audit readiness, corporate-level financial reporting, and more.
Web3 Wallet Tools

Cryptoneur
With so many grants available, it can be difficult to navigate and find the ones that align with your specific project and use case. Additionally, a lack of data-driven insights on past and successful grant applications can make the application process even more challenging. Cryptoneur understands these challenges and has created a solution. Their Web3 grant platform is a comprehensive and constantly updated database of Web3 grants, equipped with advanced filtering options and valuable data-driven insights to make the search and application process easier for you.
Infrastructure Tools

Squid
Built using Axelar Network's infrastructure, Squid enables developers to build single-click cross-chain swaps and purchases across chains with ease. Squid has a Javascript SDK, API, and front-end widget, which allows developers to add cross-chain functionality to any app. Cross-chain staking, NFT purchases, or payments, there are no limits. Users can swap between any two tokens across chains in a single click on their front-end interface.
DeFi Tools

Atato Custody
Atato Custody is built to solve the problems of security, complication, and flexibility that are prevalent in most custodial solutions available in the market. We bring decentralized security into a simplified and friendly interface for users of all sizes, integrations with any dapps, and support for any EVM and major chains/tokens most flexibly. Users can simply signup on the Atato Custody platform and try their first transaction on their testnet right away for free.
Web3 Wallet Tools

RockX
RockX products offer stable and secure node performance, cost-efficient node services, and innovative tools.
Infrastructure Tools

Fortress Wallet
Fortress Wallet has a trust that can operate in all 50 states in the U.S. They offer on/off ramps for fiat to crypto trades. Fortress Wallet also provides tokenization and wallet APIs.
Web3 Wallet Tools

XBANKING
XBANKING provides one of the most profitable staking APR in the crypto market. You can stake your crypto assets on their platform in three simple steps: (1.) Select the cryptocurrency you wish to stake; (2.) Connect your wallet; (2.) Stake the selected crypto asset.
DeFi Dapps

Delio
Founded in 2018, Delio empowers users to take control of their financial future with its smart and secure investment solutions. Offering cutting-edge product line up, including savings, loans, staking, and STO, Delio helps thousands of customers achieve financial independence in the crypto market. Trustworthy and regulated with VASP, MSB and ISMS licenses, Delio is a gateway to the world of Web 3.0 open finance.
DeFi Dapps

OnFinality
OnFinality is a blockchain infrastructure platform that saves Web3 builders time and makes their lives easier. OnFinality delivers scalable API endpoints for the biggest blockchain networks and empowers developers to automatically test, deploy, scale and monitor their own blockchain nodes in minutes. OnFinality provides dedicated node, API and network prototyping services. Faster than any single node, our globally distributed Enhanced API service provides reliable and scalable endpoints for your applications. Connect in seconds and enjoy an uninterrupted premium service that will allow your apps to grow infinitely. On-Demand Dedicated Nodes Service is designed to meet the custom infrastructure needs of anyone building in blockchain. Rapidly deploy and manage your nodes with only a few clicks using our Lightning Restore technology. With our Substrate Network Prototyping services we allow users to automatically test, deploy and scale their projects. Save time and money by sing our flexible self-serve DevOps services.
Infrastructure Tools
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Poko
Key web3 markets like Latin America, Africa, India, and Southeast Asia have poor card penetration and high transaction failure rates. Poko's Onramp Aggregator SDK enables wallet, marketplace, game, and dApp users from anywhere to purchase crypto natively using local payment methods for 5x transaction success rates and 70% less cost. We are registered in Singapore and currently support 30+ payment methods and 120+ countries.
Web3 Wallet Tools

KodaDot
KodaDot serves as an NFT marketplace with the ability to create fandom around your collection. KodaDot is a community-driven platform running on a low-carbon footprint blockchain.
NFT Dapps

Omniscia.io
Omniscia.io helps startups and enterprises design, build and secure complex decentralized networks & applications. They provide line-by-line security audits, code optimization to reduce the overall gas costs, and curated development services for commonly sought-after features such as DEX, complex ERC20 tokens, bonding curves, etc. Their clients include leading companies and projects like Ava Labs, Polygon, DappRadar, L’Oréal, Aavegotchi, and many more.
Web3 Security Tools

DeFimoon
DeFimoon provides high-quality smart contract audits at a fair price. The platform utilizes artificial intelligence in conducting tests. Their team is always available; they provide consultations even after the completion of the audit.
Web3 Security Tools

ByBarter
Users of self-custody wallets depend solely on centralized exchanges for funding and withdrawals from their self-custody wallets. ByBarter gives decentralized crypto enthusiasts the option to fund and withdraw from their self-custody wallets in a decentralized manner. World's unbanked are prevented from accessing crypto by centralized exchanges. ByBarter allows the world's unbanked to seamlessly access crypto, as there are over 400 means that can be used for funding & withdrawals. ByBarter is cheap and prevents crypto enthusiasts from losing their crypto to crashes of centralized exchanges.
DeFi Dapps

Guardarian
Guardarian is a fully licensed, EU-based non-custodial fiat on/off-ramp platform. Launched in 2017, they help power some of the biggest projects in the Web3 industry.Give your customers access to buying & selling 400+ cryptocurrencies in a fast & seamless way with Guardarian. They offer simple and intuitive API integrations with fully guided onboarding and 24/7 customer support.
Web3 Wallet Tools

Kuma Wallet
Kuma Wallet is the first of its kind, a cross-chain wallet that offers seamless management and transfer of assets between EVM and WASM chains. This wallet has been designed to make the experience of handling cross-chain assets as smooth and intuitive as possible. The wallet has been designed with a focus on maintaining its decentralization and open-source nature, ensuring its trustworthiness and security. The wallet provides a safe and intuitive platform for users to sign messages and interact with dapps, ensuring a seamless user experience.
Web3 Wallets

Rubic
Rubic is the ultimate solution for users and projects that seek to harness cross-chain technology, aggregate blockchains, Web3 bridges, and decentralized exchanges. Rubic is a cross-chain solution aggregator for users and dapps: tokens and NFT bridges, signals, oracles, and smart contract executors. By implementing Rubic into your project, users will be able to swap tokens and NFTs for any of 15,500 assets (including fiat payment methods with 250+ currencies) across EVM and non-EVM chains, without leaving your website. Your project will be able to communicate with other networks in a variety of ways, regardless of what blockchain they’re built on.
Web3 Developer Tools
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