List of Developer Tooling companies in Web3 (2026)

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.

CoinPay API Integration provides developers with programmatic access to CoinPay's payment and cryptocurrency services through API endpoints. The integration enables businesses to incorporate CoinPay's functionality into their own applications and platforms.

A developer API suite enabling cryptocurrency payment integration into third-party applications through exchange rate estimation endpoints, embeddable web widgets, and React SDK components. The Exchange API calculates crypto-to-fiat conversions with all fees included, while the React SDK provides native interface components for seamless transaction flows within web applications.

Cross-Chain NFT allows non-fungible tokens to transfer between blockchain networks while preserving uniqueness, metadata, and provenance. The platform maintains consistent NFT attributes and ownership history across chains using burn-and-mint mechanisms without wrapped versions. Users mint ERC721-compatible NFTs with cross-chain functionality through MessageClient integration.

TACo is a decentralized cryptographic infrastructure layer that enforces access control policies over sensitive data using independently-controlled nodes and threshold cryptography.

Noah AI is a no-code platform for building and deploying blockchain applications and smart contracts using AI. Users describe an application in plain text and Noah AI generates a full-stack DApp including frontend interfaces, backend APIs, smart contracts, and deployment configuration. Features include automated contract testing, vulnerability detection, AI-generated audit reports, and one-click deployment to testnet or mainnet on EVM-compatible chains and Solana. Pre-built integrations are available for protocols including Raydium, Jupiter, and Pump.fun.

Capture is a Web3 media management platform for creating, registering, and monetizing digital content with on-chain provenance on the Numbers network. It provides a mobile camera application for recording media directly to the Numbers Blockchain, a dashboard for managing authenticated digital assets, and a developer SDK for integrating provenance features into applications. An embeddable widget, Capture Eye, enables web publishers to display content credentials and support direct media purchases.

Gateway is a transaction optimization and delivery platform for Solana that enables developers to optimize priority fees, select delivery methods, and monitor transactions in real-time. The system processes raw transaction payloads through configurable optimization parameters including compute unit pricing, delivery method selection via RPC providers, Jito bundles, Triton Cascade, and Paladin, with dynamic parameter adjustment through an observability dashboard without code redeployment.

A REST API that converts queries into live endpoints for seamless data integration, enabling automated data extraction and analysis. The API supports pagination, filtering, sorting, and sampling capabilities with DuckDB integration for enhanced performance and real-time blockchain analytics.

An Ethereum Virtual Machine smart contract deployed on Solana that processes EVM-compatible transactions according to Ethereum rules, enabling parallel execution through Solana's runtime. The system accepts Ethereum-like transactions via Web3 API, converts them through Neon Proxy operators, and executes them on Solana while maintaining full compatibility with Solidity development tools and ERC-20 token standards.

LunarCrush MCP Server enables AI models to access real-time social and market data through Model Context Protocol integration, providing social intelligence for financial AI applications.

Lightspark SDK provides developers with APIs and libraries for Lightning Network integration across multiple programming languages. The toolkit enables businesses to build Bitcoin payment functionality into applications without managing Lightning infrastructure directly.

Rio Developer APIs provide powerful and flexible integration tools with ISO 27001 compliance, enabling companies to build custom stablecoin conversion experiences through accessible documentation and dedicated support.

ChangeHero API implements programmatic cryptocurrency exchange functionality for integration into third-party platforms, wallets, and applications. The API provides access to swap infrastructure, rate optimization algorithms, and multi-exchange liquidity aggregation through RESTful endpoints. Partners can configure custom fee structures and utilize multiple API keys with independent commission parameters.

TradePort NFT Trading SDK is a TypeScript library that enables developers to integrate NFT trading functionality into applications through programmatic transaction creation. The SDK supports buying, selling, sweeping, listing, bidding, instant selling, and transferring NFTs across marketplaces with automated transaction payload generation. Currently supports Aptos and Sui blockchain networks with cross-marketplace liquidity aggregation.

Berachain Faucet is a testnet token distribution tool for the Berachain network, providing developers and users with testnet tokens for application development and testing.

Streamflow SDK enables developers to integrate programmable payment features into applications through JavaScript and Rust libraries, providing direct access to token vesting, streaming payments, and distribution protocols.

A cross-chain development toolkit that lets developers create wallet addresses and handle signing requests across multiple blockchain networks, using distributed MPC for security.

AIXBT CLI is a command-line tool for accessing the AIXBT crypto market intelligence API from a terminal environment. It provides commands to query project rankings, signals, momentum data, and market grounding snapshots. A built-in recipe engine allows users to define declarative pipelines that fetch, filter, and analyze data automatically. The CLI supports multiple access modes including API keys, pay-per-use via x402, and a free delayed tier, and can integrate with or spawn AI agents for automated analysis.

Python framework for building selective blockchain indexers. Includes code generation, ORM integration, and multiple datasource support with TimescaleDB and GraphQL integration.

Paygrid SDK is a developer toolkit that enables integration of chain-abstracted payments into applications, simplifying cross-chain transactions and payment workflow orchestration.

MB API implements cryptocurrency trading and market data access through programmatic interfaces, enabling automated trading strategies and system integration. The API provides both data endpoints and transaction execution capabilities for developers.

dTWAP Protocol is a decentralized time-weighted average price protocol enabling algorithmic order execution by splitting large trades into smaller intervals. The system operates through maker-taker dynamics with Orbs validators serving as takers, executing trades at specified intervals to minimize market impact and reduce slippage.

Gear IDEA is a web-based IDE for developing, testing, and deploying smart contract programs on Vara Network. It provides a browser-based environment for writing Rust-based programs that compile to WebAssembly and deploy directly to the Vara blockchain.

The Hop JavaScript SDK (@hop-protocol/sdk) provides programmatic access to Hop Protocol bridge functionality, enabling developers to integrate cross-chain token transfers into applications. The SDK handles fee calculation, transaction construction, and AMM interactions across all Hop-supported networks and tokens, with npm distribution and a full API reference.

Infinex Connect implements SDK and integration framework enabling third-party dapps to access Infinex Account functionality through standardized interfaces. The system provides SSO-style authentication, policy-based transaction signing, and cross-chain balance access for connected applications.

Grid provides programmable payment APIs built on stablecoin infrastructure, enabling developers to deploy financial applications with global reach. The system offers smart account creation, payment processing, "smart transactions" that utilize conditional logic on-chain for automated execution, and yield management modules for building fintech services on blockchain networks.

Messari AI Toolkit is a set of developer APIs providing crypto-specific AI capabilities for building applications in the digital asset space. It offers an OpenAI-compatible chat completions interface backed by extensive crypto market data, research, and news, allowing developers to integrate source-grounded AI responses into their own products. The toolkit supports automated research, news summarization, and trend analysis, and is accessible on an early access basis.

Cartridge VRF provides atomic, verifiable randomness through cryptographic proofs for onchain games on Starknet. The system processes VRF requests and responses within single transactions using Stark curve verification and Poseidon hashing, enabling synchronous random value generation without multi-transaction delays.

Freedom Tool is an open-source decentralized voting solution using zero-knowledge cryptography to enable transparent, privacy-preserving online voting on blockchain. It protects voters from tracking while enabling digital identity verification.

Flipster Trading API provides programmatic access to the platform's trading and market data functionality. The REST API and WebSocket interface support spot and perpetual markets, isolated and cross-margin modes, and order types including market, limit, and stop-market. Authentication uses HMAC signing with per-key rate limits. Access is available to a limited group of selected users pending a public release.

Staking SDK implements developer tools enabling applications to integrate multi-chain staking functionality through standardized APIs. The system provides abstraction layers for validator operations, reward tracking, and transaction signing across supported Proof-of-Stake networks, reducing implementation complexity for institutional platforms and wallet providers.

Deribit API provides JSON-RPC and WebSocket interfaces for programmatic access to derivatives trading, supporting REST endpoints, real-time market data subscriptions, and FIX protocol integration for institutional clients.

Modern Treasury Ledgers is a managed accounting database that tracks financial transactions using double-entry accounting principles. The product provides a RESTful API with official SDKs for JavaScript, Java/Kotlin, Python, and Go. Developers can define account hierarchies of up to five levels, log and query double-entry transactions in real time, and configure auto-ledgering rules for payment orders. Supporting features include balance locking to prevent overdrafts, balance monitors with webhook alerts, account reconciliation against external bank balances, complete audit logs, and automated exports to data warehouses. Infrastructure provisioning, caching, and maintenance are fully managed.

A comprehensive SDK for integrating Web3Auth's authentication solutions into Web3 applications.

Zero knowledge applications built using o1js, a TypeScript-based library, that enable privacy-preserving computation, off-chain processing with on-chain verification, and composable proofs with no gas fees.

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.

X402 Echo Merchant is a demo merchant that lets users run real x402 payment flows at zero cost, automatically refunding payments to validate integrations without financial risk.

Portals API provides developers with unified endpoints for DeFi aggregation, swap execution, and on-chain data retrieval. The API enables integration of DEX aggregation, zap functionality, and both real-time and historical token data into applications. It includes endpoints for token information, network support, platform data, transaction execution, approval management, and account balance queries.

NeoDAX is a Crypto brokerage toolset built on Yellow SDK that provides a pre-built software stack for launching exchange and trading businesses. Offers configurable trading software with turnkey liquidity access through Yellow Network, modular components, and open-source architecture for financial exchange operations.

Immutable Hub is a Web-based project management dashboard for studios building on Immutable Chain. Enables zero-code smart contract deployment using pre-built Asset Contract templates, project environment configuration, and testnet token distribution. Provides access to live developer support and documentation for the Immutable product suite.

Developer tools and SDK that provide game distribution, version control, social features, anti-cheat integration, and Web3 components for indie game developers.

IO Intelligence enables AI application development through an OpenAI-compatible API that connects to leading machine learning models on io.net infrastructure. It allows developers to integrate AI capabilities with secure processing, cross-platform compatibility, and scalable global GPU resources at reduced costs compared to centralized providers.

D3 Connect SDK provides domain resolution capabilities for applications using wallet addresses. The software resolves human-readable names to blockchain addresses through standardized APIs. Developers implement the SDK to support cryptocurrency transfers using domain names instead of addresses. The system unifies traditional DNS and Web3 naming services into a cross-platform interface.

Paymaster-as-a-Service that lets projects deploy customised paymasters on ZKsync.

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.

ONINO Developer Platform is a cloud‑based toolkit with templates, AI‑assisted code, deployment tools, and REST APIs for building on ONINO.

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.

Regen Registry provides tools for project developers to register ecological projects, develop credit methodologies, and issue ecocredits through standardized verification protocols.

A standardized framework for smart contract address labeling that enables community contributions to contract metadata through attestations.