List of Developer Tooling companies in Web3 (2026)

Noves App provides a unified platform for blockchain data services, enabling access to various APIs, tools, and features including transaction inspection, data export for tax purposes, and integration solutions across 80+ blockchain networks.

Sats Connect is a JavaScript SDK enabling web applications to connect to Bitcoin wallets. The library implements the WBIP001 standard for wallet connection, transaction signing, account management, and supports Bitcoin Layer 1, Stacks, and Starknet interactions.

CoinJar Clear is a white-label API infrastructure that enables financial services companies to integrate cryptocurrency trading capabilities into their existing platforms. The solution provides access to liquidity pools and custody systems through customizable endpoints for embedded exchange functionality.

Hemi Bitcoin Kit (hBK) is a developer tooling library of smart contracts enabling Solidity developers to query native Bitcoin state within the EVM environment. The library abstracts hVM precompile calls into structured interfaces, offering methods to retrieve Bitcoin address balances, UTXOs, transaction details, and block headers without relying on external relayers or gas-intensive proof validation. Developers use hBK to build Bitcoin-aware dApps on Hemi with trustless, real-time access to live Bitcoin blockchain data.

Zeus Program Library provides developers with tools and infrastructure to build multi-chain applications leveraging Bitcoin functionality on Solana through pluggable and programmable components.

ENS Tools provides utility functions for ENS domain management including name status checking, primary name setting, domain unwrapping, and resolver management. The tools support advanced operations for users managing wrapped names and contract-based domain operations.

ICRYPEX API is a developer toolkit that provides REST and WebSocket endpoints so businesses, traders and independent developers can programmatically access market data and execute trades on ICRYPEX.

A developer API enabling cryptocurrency payment integration into applications and websites, providing endpoints for payment link generation, transaction processing, and wallet management across multiple blockchain networks.

Vorj is a no-code development platform that enables users to create, deploy, and manage smart contracts on the VeChainThor blockchain without coding experience or transaction fees. The platform provides organization and team management features, OpenZeppelin-based smart contract templates for ERC-20 and ERC-721 tokens, customizable contract configuration interfaces, and API integration capabilities for both UI-based and programmatic access.

Multi-proof generation system supporting RISC0, SP1, and SGX proof methods for Taiko block validation. The system provides cryptographic verification capabilities for the based rollup architecture through multiple proving backends.

YO SDK is a developer toolkit enabling applications to embed YO Protocol's yield vaults through a single integration point. It provides a TypeScript package with React Hooks for frontend and backend use, a plug-and-play widget component for direct UI embedding, and an agentic interface for integrating yield capabilities into AI-driven workflows. All methods route onchain interactions through the yoGateway contract, which handles allowance management and slippage across all current and future yoVaults.

Euler Vault Kit provides developers with tools to deploy ERC-4626 vaults without requiring permissions. The kit allows full control over governance settings, risk management parameters, asset pricing mechanisms, and interest rate models.

Reveel APIs provide developer infrastructure for integrating Pay(ID) universal payment capabilities into applications, wallets, and AI agent frameworks.

Upbit API provides programmatic access to trading functions, market data, and account management through RESTful endpoints. The system enables third-party integrations with authentication protocols and rate limiting for developer applications.

Bitcoin Suisse APIs are enterprise REST and FIX interfaces that let developers integrate trading, custody, staking, reporting, and client management into their own systems. A single API key can manage multiple client accounts with low‑latency execution and reporting endpoints.

Nirvana Cloud is a bare metal cloud optimized for blockchain workloads with configurable compute, storage, and networking. Users deploy and scale validators, RPC nodes, and data services while reducing infrastructure complexity.

Virgo Widget is a JavaScript SDK and WordPress plugin enabling crypto projects to embed a token purchase interface on their websites. The tool handles fiat payment processing, cross-chain swap routing, and regulatory compliance across Ethereum, Binance Smart Chain, and Polygon, supporting multiple fiat payment methods with a free integration model for developers.

NodeReal API Marketplace is a developer tooling platform that aggregates third-party and first-party blockchain APIs into a single subscription interface. Developers browse and subscribe to packaged APIs covering NFT data, DeFi analytics, wallet toolkits, token indexing, and chain-specific endpoints from partners including NFTScan, Covalent, and PancakeSwap. Access is managed through NodeReal's unified authentication and billing layer.

Zebec SDKs provide developers with tools to integrate Zebec's streaming payment infrastructure into applications, supporting multiple blockchains including Solana and Near Protocol.

Stone Prover is the STARK-proof generation system that powers StarkWare's products. The system generates cryptographic proofs that verify computational integrity while maintaining high performance.

OSL Trading API enables platforms to integrate regulated digital asset trading and custody functionality through API-driven solutions. The service provides secure and compliant infrastructure for scalable asset management by third-party platforms.

A unified API infrastructure providing read and write connectivity to multiple blockchains and DeFi protocols. The system supports transaction signing, data querying, price discovery, trade decoding, compliance checks, and liquidity management across DEXs, bridges, lending platforms, staking protocols, oracles, and NFT marketplaces. The platform uses a modular architecture enabling developers to interact with various chains and protocol endpoints through standardized API calls.

APX Permissionless DEX Engine is an SDK enabling third-party projects to deploy branded on-chain perpetual futures exchanges using APX V2 infrastructure. Partners access the shared ALP liquidity pool without requiring authorization from APX Finance and can configure custom domains and trading interfaces. Partners earn commissions on trading fees generated through their deployed platforms. BNB Chain and Arbitrum are supported.

TipLink API enables developers to programmatically create and manage TipLink wallets, facilitating the generation and distribution of digital assets through links at scale for various use cases including payments and asset distribution.

Tres Alerts Centre provides real-time notifications for blockchain transactions and digital asset activities, enabling businesses to integrate transaction monitoring into their daily workflows.

Sway is a domain-specific programming language based on Rust syntax, designed for high-compute blockchain environments with compile-time analysis, safety features, and smart contract paradigm support.

A GraphQL development environment for building and testing blockchain data queries across multiple networks.

Transaction Automation implements programmable transaction signing and workflow management through policy-driven controls, enabling automated asset movements, multi-signature approvals, and complex transaction sequences. The system provides granular permission management and compliance tracking for institutional-grade operations.

Superbridge Rollies is infrastructure-as-a-service that provides customizable bridge interfaces for blockchain teams. The system includes dedicated indexers, custom domains, theme customization, and integration support for OP Stack and Arbitrum Orbit rollups.

Coinchange provides API-powered stablecoin yield infrastructure for fintech companies, enabling customers to earn on digital assets through integrated DeFi protocols. The system offers embedded yield functionality with automated portfolio management and risk-neutral strategies across multiple blockchain ecosystems.

CoinTR API is a developer interface that provides programmatic access to exchange functionality including trading, market data, account management, and order execution. The API enables third-party applications and algorithmic trading systems to integrate with the CoinTR platform.

0xGraph is a real-time blockchain indexing engine that exposes smart contract data via Graph-compatible subgraphs for low-latency GraphQL queries without running infrastructure.

Bridge-as-a-Service is a developer toolkit for deploying custom cross-chain bridges on ElkNet using standardized smart contracts and SDKs.

Artemis Sheets implements spreadsheet plugins for Excel and Google Sheets that connect to on-chain data. The system delivers customizable crypto metrics using =ART() functions while maintaining compatibility with standard spreadsheet operations.

Belong SDK provides developers with APIs and tools to integrate NFT-based token gating and access management into applications. The framework supports multichain functionality, gasless minting, and verification of NFT access credentials across supported networks while offering comprehensive error handling and security features.

Nimiq Keyguard handles private key storage and transaction signing in an isolated browser environment with strict security policies. The system manages cryptographic operations while maintaining key isolation from application interfaces.

Sentism Telegram Mini App provides users with an integrated DeFi interface within Telegram for launching tokens, optimizing yields, and managing AI-powered operations through a mobile-first chat application.

Dev Utexo is developer tooling that provides SDKs, RPCs, and an RGB Lightning Node API with webhooks and token authorization to build on Bitcoin’s RGB and Lightning without running infrastructure.

Triple A API provides developers with tools to integrate crypto payment processing into applications, offering endpoints for payment creation, transaction monitoring, and settlement management with comprehensive documentation and SDKs.

Drops Airdrop Tracker monitors wallet addresses across multiple blockchain networks to identify unclaimed cryptocurrency airdrops, providing eligibility checks and Telegram notifications. The platform tracks airdrops on Ethereum, Solana, Cosmos, Aptos, Sui, Starknet, Bitcoin, and TON without requiring wallet connections.

Metaplex Bubblegum v2 is an enhanced compressed NFT architecture with improved concurrent Merkle tree structures, enabling optimized digital asset creation with advanced indexing capabilities. The system provides upgraded compression algorithms and enhanced verification mechanisms for large-scale NFT deployment across enterprise applications. It is designed for enterprise applications, enabling mass creation of digital assets across RWAs, AI, gaming, and other use cases

Thoth functions as a security toolkit for Cairo and Starknet, providing bytecode analysis, disassembly, and decompilation capabilities for smart contract review. The tool enables security teams to inspect low-level code execution and identify potential vulnerabilities in deployed contracts.

Sedge is a one-click setup tool for PoS network/chain validators and nodes that helps with the configuration and deployment of validators for Ethereum and other networks.

Bee-js is a JavaScript library that provides developers with APIs to interact with the Swarm network, enabling decentralized application development with minimal code.

DART is a blockchain-based lien and eNote registry system that tracks ownership of notes, liens, and collateral in real-time. The system uses Provenance Blockchain to automatically update loan ownership and registration information, providing investors and lenders with operational efficiency and verifiable ownership records.

Odos API provides programmatic access to the Odos Smart Order Routing infrastructure for developers and protocol integrators. The API suite includes a Smart Order Router (SOR) API that identifies optimal token swap paths across integrated liquidity sources, a Token Pricing API for real-time DeFi asset price data, Liquidity Zaps for automating single-asset deposits and withdrawals into liquidity pools, and a Path Visualization API for generating Sankey diagrams of trade routes. A free public tier and a dedicated Enterprise tier with higher rate limits and dedicated infrastructure are available.

AVNU Paymaster is a developer tool that enables gas fee flexibility on Starknet, allowing users to pay gas in any supported token or enabling developers to fully sponsor user transactions. It removes onboarding friction by eliminating the requirement to hold native tokens.

Bando API offers backend integration for the Bando Fulfillment Protocol, providing endpoints for product catalogs, global quotes, transaction building, and payment processing for developers building spending features.

Dojo Engine implements a provable game engine through Cairo smart contracts, enabling fast onchain game development with built-in components for state management and game logic.

Stablecoin Orchestration APIs provide programmatic access to M0 liquidity networks through standardized interfaces, enabling stablecoin minting and redemption. The system connects to multiple issuers while automating transaction monitoring and settlement.