1 4.8 Helius 1 review Helius provides Solana-optimized developer infrastructure including fast RPC endpoints, transaction parsing APIs, webhooks, and compressed NFT support for building Solana applications. 2 4.8 Infura 1 review Infura provides managed blockchain node APIs that developers use to build dApps without running their own infrastructure, offering reliable RPC access to Ethereum and multiple EVM chains. 3 4.8 Manifold Ethereum 1 review Manifold Studio provides no-code and developer tools for deploying custom NFT smart contracts, building interactive mint experiences, and creating advanced token mechanics like burns and claims. 4 4.8 OpenZeppelin 1 review OpenZeppelin Contracts is the most widely adopted open-source library for secure Solidity smart contract development, providing battle-tested implementations of ERC standards, access control, and other common patterns. 5 4.8 Tenderly 1 review Tenderly is a comprehensive Web3 development platform offering smart contract debugging, transaction simulation, monitoring, and testing tools for EVM-compatible blockchains. 6 4.8 The Graph GRT Ethereum 1 review The Graph provides essential indexing infrastructure for blockchain developers, enabling them to build and query subgraphs that organize on-chain data into accessible GraphQL APIs. 7 4.8 Thirdweb Ethereum 1 review Thirdweb provides a comprehensive SDK, pre-built smart contract templates, and deployment tools for building web3 applications across 1000+ EVM chains. 8 4.7 Lightning Labs Bitcoin 1 review Lightning Labs provides developer tools and APIs for building on the Lightning Network, including LND's gRPC and REST APIs, Lightning Terminal, and the Taproot Assets SDK. 9 4.7 mempool.space Bitcoin 1 review mempool.space provides open-source APIs and self-hostable blockchain exploration tools used by developers for fee estimation, transaction monitoring, and Bitcoin network analytics. 10 4.7 Moralis 1 review Moralis provides a comprehensive suite of Web3 APIs and SDKs that simplify blockchain development, offering wallet, token, NFT, and streaming data APIs across multiple chains. 11 4.7 QuickNode 1 review QuickNode provides high-performance blockchain node endpoints, APIs, and developer tools supporting 25+ chains, enabling developers to build Web3 applications without managing node infrastructure. 12 4.7 Trail of Bits 1 review Trail of Bits develops widely-used open-source blockchain security tools including Slither (Solidity static analyzer), Echidna (smart contract fuzzer), and Manticore (symbolic execution engine). 13 4.6 Arbiscan 1 review Arbiscan provides smart contract verification, API access, and developer tools for building and monitoring applications on the Arbitrum network. 14 4.6 BaseScan 1 review BaseScan provides smart contract verification, API access, and developer tools for building and monitoring applications on the Base network. 15 4.6 Blocknative 1 review Blocknative provides developer tools for mempool monitoring, gas estimation, and transaction simulation on Ethereum and EVM chains, used by DeFi protocols and dApps. 16 4.6 Blockstream Bitcoin 1 review Blockstream provides developer tools including Core Lightning, Blockstream AMP for Liquid-based asset issuance, Elements platform for sidechain development, and open-source Bitcoin libraries. 17 4.6 Covalent CQT Ethereum 1 review Covalent provides a unified blockchain data API supporting 200+ chains, enabling developers to access granular historical data including balances, transactions, and NFT metadata through a single integration. 18 4.6 Cyfrin 1 review Cyfrin offers the Updraft platform with free blockchain security and smart contract development courses, plus open-source security tools used by Solidity developers worldwide. 19 4.6 Defined.fi 1 review Defined.fi offers a comprehensive API for real-time onchain token and DEX data, used by developers building trading tools and analytics platforms. 20 4.6 Gitcoin Grants 1 review Gitcoin Grants funds critical Ethereum developer tools and infrastructure through quadratic funding rounds that amplify community contributions. 21 4.6 Hiro Bitcoin 1 review Hiro provides the core developer toolkit for Stacks and Bitcoin, including Clarinet for Clarity smart contracts, Stacks API, Ordinals API, and the Hiro development platform. 22 4.5 Breez Bitcoin 1 review The Breez SDK is an open-source developer toolkit for integrating self-custodial Lightning Network payments into mobile and web applications. 23 4.5 BscScan 1 review BscScan offers APIs and smart contract verification tools that developers use to build, debug, and monitor applications on BNB Smart Chain. 24 4.5 PolygonScan 1 review PolygonScan provides smart contract verification tools, APIs, and developer resources for building and monitoring applications on the Polygon network. 25 4.5 Runtime Verification 1 review Runtime Verification provides formal verification frameworks and tools for smart contract developers, enabling mathematical proof of contract correctness across EVM and non-EVM chains. 26 4.5 Snapshot 1 review Snapshot provides open-source governance infrastructure that developers can integrate into their dApps, with customizable voting strategies and a comprehensive API for building governance features. 27 4.5 Orderly ORDER $0.060510 24h: +0.7% 6 reviews Orderly Network provides permissionless, omnichain liquidity and trading infrastructure for Web3, enabling developers to build DEXes with shared orderbook liquidity across multiple chains. 28 4.4 Ankr ANKR Ethereum 1 review Ankr provides decentralized RPC node services and developer tools across 45+ blockchains, offering free and premium endpoints for building multi-chain Web3 applications. 29 4.4 Blockscout 1 review Blockscout provides open-source explorer infrastructure that blockchain teams can deploy for their networks, along with smart contract verification tools and comprehensive APIs. 30 4.4 Dedaub Ethereum 1 review Dedaub offers EVM bytecode decompilation tools and a contract library that indexes and analyzes smart contracts across major EVM chains, useful for security research and development. 31 4.4 Enjin ENJ Ethereum 1 review Enjin offers a suite of blockchain developer tools including the Enjin Platform API, SDKs for game engines (Unity, Unreal), and the pioneering ERC-1155 multi-token standard for digital asset creation. 32 4.4 Fleek 1 review Fleek offers a comprehensive developer platform for deploying websites and applications to decentralized infrastructure, with Git-based continuous deployment, custom domains, and SDK tooling. 33 4.4 Lit Protocol LIT Ethereum 1 review Lit Protocol provides decentralized key management and programmable signing infrastructure that developers use to add encryption, access control, and automated signing to their Web3 applications. 34 4.4 Polkadot DOT Polkadot 1 review Polkadot provides the Substrate framework for building custom blockchains, along with comprehensive SDKs, documentation, and developer resources for parachain development. 35 4.4 Subsquid SQD Ethereum 1 review Subsquid provides decentralized blockchain data indexing and querying across 100+ chains, enabling developers to build high-performance APIs with fast sync and real-time data access. 36 4.3 Aragon ANT Ethereum 1 review Aragon provides a developer SDK and modular plugin architecture (Aragon OSx) that enables developers to build customizable DAO governance systems with reusable smart contract components. 37 4.3 BlockSec 1 review BlockSec offers MetaSleuth for crypto fund tracing and investigation, plus Phalcon for automated attack detection and response that developers can integrate into their protocol infrastructure. 38 4.3 Ceramic Network 1 review Ceramic Network provides decentralized data streaming infrastructure that developers use to build applications with user-owned data, verifiable credentials, and composable data models across Web3. 39 4.3 Flipside Crypto 1 review Flipside offers curated blockchain data through SQL-queryable databases and APIs, providing developers and analysts with cleaned, indexed data across multiple blockchains. 40 4.3 Guild.xyz 1 review Guild.xyz offers API-driven access management infrastructure for Web3 projects, enabling token-gated access control across Discord, GitHub, and other platforms. 41 4.3 Transak 1 review Transak offers developer-friendly SDK and API integrations for embedding crypto on-ramp and off-ramp functionality directly into Web3 applications. 42 4.3 Umbrel Bitcoin 1 review Umbrel offers a self-hosted app ecosystem for Bitcoin developers and power users, including Bitcoin Core, Lightning nodes, Electrum server, and a curated app store. 43 4.3 Wert 1 review Wert offers developer APIs and embeddable widgets for integrating fiat-to-crypto payments and NFT minting directly into Web3 applications and marketplaces. 44 4.2 Agoric BLD Cosmos 1 review Agoric provides JavaScript-based smart contract development tools with familiar paradigms, object-capability security, and Orchestration API for building cross-chain applications on Cosmos. 45 4.2 Cobo 1 review Cobo offers developer APIs and wallet infrastructure including MPC wallets, smart contract wallets, and custodial solutions for building Web3 applications. 46 4.2 DEXTool DEXT $0.130600 24h: +0.1% 6 reviews DEXTools offers developer-oriented analytics and API access to on-chain trading data, token pair information, and market metrics across multiple blockchain networks. 47 4.2 Hedera HBAR Hedera 1 review Hedera provides native SDKs, EVM-compatible smart contracts, and built-in services for token creation, consensus messaging, and file storage for enterprise application development. 48 4.2 OrdinalsBot Bitcoin 1 review OrdinalsBot offers APIs and bulk tools for developers to integrate Bitcoin Ordinals inscription services, including collection launchpad and programmatic inscription creation. 49 4.2 Token Tool by Bitbond Ethereum 1 review Token Tool provides developer-friendly infrastructure for token deployment, batch transfers, liquidity pool creation, and staking pool setup. 50 4.2 Voltage Bitcoin 1 review Voltage offers developer-focused Lightning node infrastructure with APIs, one-click deployments, and tools like Flow and Surge for building Lightning-powered applications. 51 4.1 Neutron NTRN Cosmos 1 review Neutron offers developers a permissionless CosmWasm environment with cross-chain primitives like Interchain Accounts and Queries, making it a key platform for building interchain DeFi applications. 52 4.1 Questbook 1 review Questbook provides decentralized grants management infrastructure used by major blockchain ecosystems to efficiently distribute developer grants with milestone-based tracking. 53 4.0 Unique Network UNQ Polkadot 1 review Unique Network offers a comprehensive SDK for building NFT-powered applications on Polkadot, supporting nested NFTs, re-fungible tokens, and advanced ownership structures. 54 3.9 Archway ARCH Cosmos 1 review Archway provides a developer-incentivized CosmWasm smart contract platform on Cosmos, with built-in reward tracking and tooling for building cross-chain applications with IBC support. 55 3.9 Charmverse 1 review Charmverse offers Web3 team collaboration infrastructure with wallet-based authentication, token gating, and on-chain governance integration for decentralized organizations. 56 3.9 Collab.Land COLLAB Ethereum 1 review Collab.Land provides token-verification infrastructure and community management tools that integrate with Discord and Telegram for automated Web3 access control. 57 3.8 ETHGlobal 1 review ETHGlobal provides hackathon infrastructure, mentorship networks, and developer resources that help Ethereum builders launch new projects and protocols.