List of Developer Tooling companies in Web3

AvaCloud provides no-code blockchain deployment through managed infrastructure and automated services, enabling enterprises to launch custom blockchains in minutes. The platform includes 24/7 support while offering compliance-ready configurations and enterprise-grade SLAs.

BeaconKit implements modular consensus infrastructure through CometBFT integration, enabling EVM-identical blockchain development with customizable validation. The system provides single-slot finality while supporting alternative consensus mechanisms.

A set of APIs and developer tools including Swap (Classic, Fusion, Fusion+), Portfolio API, Web3 RPC, security endpoints, and data APIs for tokens and pricing.

DeFi API is an API platform that provides unified access to multiple decentralized finance protocols and applications. It enables developers to integrate DeFi functionality including token swaps across chains, liquidity provision, and interaction with various DeFi projects through standardized endpoints.

Implements rollup infrastructure through optimized node services, enabling Layer 2 blockchain deployment and management. The system supports multiple rollup architectures with integrated monitoring and scaling capabilities.

Bitnob Trading Infrastructure implements cryptocurrency exchange functionality through REST API endpoints, enabling automated Bitcoin-USDT swaps with integrated liquidity sourcing. The system provides real-time price discovery while maintaining order execution capabilities for platform integration.

Banxa APIs provide REST endpoints for order creation, price quotes, payment methods, KYC sharing, and currency support, enabling partners to build custom cryptocurrency exchange interfaces with streamlined verification.

Butter SDK provides developers with tools and libraries for integrating cross-chain functionality into applications, enabling easy implementation of omnichain features through standardized APIs and documentation.

Busha API provides financial institutions and developers with cryptocurrency integration capabilities, enabling crypto-to-fiat conversion, wallet creation, payment processing, and cross-border transactions through RESTful endpoints with sandbox and production environments.

Archax Tokenisation Engine enables creation and management of digital tokens representing real-world assets through multi-chain deployment infrastructure, supporting issuance of tokenized funds, bonds, equities, commodities, and stablecoins across integrated blockchain protocols.

Bitkub API enables developers to integrate cryptocurrency trading and wallet functionality into applications through RESTful endpoints, supporting market data access, order management, and account operations. The API provides real-time price data and secure authentication for automated trading systems.

Bullish Trading API suite offers REST, WebSocket, and FIX interfaces for programmatic interaction with the Bullish exchange, supporting market data access, order management, and account operations.

Axelar Virtual Machine enables developers to write smart contracts on Axelar while scaling interchain deployments and programming the cross-chain networking layer.

Balmy SDK is a blockchain integration tool with TypeScript libraries. It enables developers to build applications with token balance management, DEX quote aggregation, and multi-chain functionality. The system provides modular services for allowances, gas optimization, price feeds, and DCA positioning.

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.

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

Greenlight is a cloud-hosted Lightning node service and developer API that allows apps to integrate non-custodial Lightning payments without running their own infrastructure.

API service that converts natural language inputs into executable blockchain transactions. Extracts parameters from user prompts to prepare transaction objects, query blockchain data, or generate smart contract code for direct integration into third-party applications.

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.

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.

BitMEX API implements REST and WebSocket interfaces for algorithmic trading and market data access, enabling programmatic interaction with all exchange functions. The system provides real-time data streaming and complete trading automation capabilities.

Bity Exchange API provides programmatic access to Swiss-regulated crypto exchange functionality, enabling businesses and developers to integrate fiat-to-crypto, crypto-to-fiat, and crypto-to-crypto trading capabilities. The API supports exchanges up to CHF 1,000 daily without KYC requirements and offers revenue-sharing opportunities for partners.

BlockWyre SaaS Solutions provides embedded fintech services for software platforms, enabling wallet functionality, payment processing, and compliance integration. The system offers API-driven tools for crypto custody, liquidity management, and cross-border payment capabilities.

AgenteBTC API provides developer integration tools and programming interfaces for accessing cryptocurrency exchange functionality, enabling third-party applications to integrate with AgenteBTC services.

Alpaca Trading API enables commission-free stock, options, and crypto trading through REST and WebSocket interfaces for algorithmic traders and developers. The system supports real-time order execution, portfolio management, and paper trading simulation environments for strategy testing. Trading API includes margin trading capabilities, fractional share trading, and automated order routing across market venues.

Avantis SDK provides developers with tools and APIs to integrate real-time price feeds, execute trades, and manage positions on the Avantis platform for building DeFi applications and trading algorithms.

AVNU Paymaster enables gas fee abstraction on Starknet, allowing applications to sponsor transaction fees or accept any token for gas payments. The service simplifies user experience by removing the need to hold native tokens for transaction fees.

Trading tools and APIs designed for Solana that provide ultra-low latency transaction execution, MEV protection, and real-time data streams from multiple DEXs including Raydium, Jupiter, and Pump.fun.

A developer toolkit enabling businesses to integrate cryptocurrency payment acceptance through the Beans platform. The SDK generates QR code payment requests, supports multi-currency transactions with automatic conversion, processes instant settlements, and provides webhook notifications for payment confirmations. Merchants can deploy point-of-sale systems, e-commerce integrations, or custom payment flows while accessing Beans network liquidity without managing individual on-ramp partnerships.

Brutus Energy Bot provides automated energy and bandwidth rental services on the Tron blockchain through a Telegram bot interface, API, and web platform. The system allows users to rent or provide energy and bandwidth resources, automating the resource provisioning process for Tron transactions.

Apibara DNA is a protocol for streaming on-chain data directly to applications through efficient binary protocols. The system enables data filtering at the node level to reduce bandwidth usage while maintaining transaction composability.

AiMo API Platform provides a unified OpenAI-compatible API for accessing decentralized AI models with X402 protocol-based cryptocurrency payments. The platform enables users to pay for AI inference on-demand using USDC on Base or Solana networks without requiring pre-funded accounts or traditional API keys. The system supports standard chat completion endpoints with automatic payment verification and on-chain transaction settlement.

Solana JavaScript SDK is a modular TypeScript library for building Solana applications across Node.js, web browsers, and React Native platforms. The SDK provides native cryptographic operations, tree-shakable architecture, and zero external dependencies, enabling developers to read blockchain data, execute transactions, and interact with on-chain programs.

An API service providing standardized access to NFT collections and token metadata on Starknet, with features like real-time transfer tracking, ownership data, and media caching to enhance application user experience.

Boltwade Studio is a game development infrastructure with Dojo engine and Unity integration, enabling creation of flash games on Starknet. The platform combines Dojo's provable game mechanics with Unity's rendering capabilities while maintaining fast transaction speeds.

Bridgebuilder is an IP collaboration and discovery platform that lets users map, connect, and commission work across fictional worlds and game IP. It explores client-side proofs and storage/ZK proofs on Dojo/Starknet, peer collaboration with CRDTs and IPFS, and on-chain settlement for provenance and royalties. Current work focuses on UX prototypes and interoperability across frameworks.

Privacy Pools implements compliant privacy-preserving transactions on Ethereum using zero-knowledge proofs and an Association Set Provider. The protocol allows users to deposit assets publicly and withdraw them privately to new addresses while excluding illicit actors to maintain compliance.

Solana-native verifiable compute system for integrating private data proofs into smart contracts.

Bonsol is a ZK co-processor for Solana that enables off-chain computation with on-chain verification, allowing developers to build applications with enhanced privacy and scalability.