List of Developer Tooling companies in Web3 (2026)

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.

dLIMIT Protocol is a decentralized limit order protocol utilizing English Auction bidding mechanisms for price-efficient order execution on DEX platforms. The system ensures optimal fill prices through competitive bidding among Orbs validators, with orders executing only when market conditions meet user-specified price targets.

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.

Rewards Reporting implements API infrastructure providing granular staking rewards data for accounting and compliance purposes. The system delivers transaction-level reward tracking, tax reporting formats, and historical data access through standardized endpoints enabling institutional clients to integrate staking reward information into financial systems.

dLocal Crypto API is a developer tooling offering that provides SDKs and API access for integrating stablecoin payment processing into applications. It connects digital asset flows with local payment methods, letting developers route stablecoin transactions into fiat-based payins and payouts across emerging markets. The API is documented for merchants and platforms building crypto-linked payment integrations.

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.

Walrus Sites provides developer tooling for deploying decentralized websites using Walrus storage and Sui blockchain smart contracts. The platform includes a site-builder CLI tool for converting standard web frameworks output into decentralized sites, with metadata stored on Sui and resources stored on Walrus. Sites support dynamic functionality through Sui-compatible wallet integration and Move-based smart contract programmability, accessed via portal infrastructure.

DFlow Trade API is a developer toolkit and liquidity aggregator on Solana that provides unified trade execution for spot swaps and prediction market outcome tokens. It aggregates liquidity across decentralized exchanges, launchpads, and market makers, treating each venue as interchangeable and using just-in-time routing to reoptimize trades at execution time. Developers can request quotes and orders, stream live market data, and choose between an imperative order flow or a declarative intent flow with added execution protection. The API also supports gasless swaps, composable transactions, and custom platform fees.

ICPay Payment Processor is a multi-chain payment network that lets merchants and developers accept cryptocurrency and card-based payments across several blockchain ecosystems. It processes payment intents through a hosted API, an embeddable software development kit, and prebuilt payment widgets, converting between stated dollar amounts and on-chain tokens with sub-two-second settlement. Wallet connection helpers, an optional fiat onramp, and plugins for common content and commerce platforms let merchants add checkout flows, tips, paywalls, and donation tools without building custom payment infrastructure. Developers use the accompanying developer kit and widget components to embed the same payment flows directly into websites and applications.

IDX AutoBot is a web-based developer tooling platform that provides on-chain utilities for Solana token builders. It bundles an automated market maker and volume bot with multiple engine tiers to generate trading activity, alongside SPL token creation, Raydium liquidity pool setup, token metadata management, bulk token distribution, automated holder growth, social engagement boosting, and token supply controls such as burning and authority revocation. Founders, marketers, and developers use the dashboard to launch and manage Solana tokens without writing code, and all tools operate non-custodially without requiring access to private keys.

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.

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.

Covalent Network is a Decentralized data infrastructure protocol addressing long-term blockchain data availability and verifiability. The network captures raw blockchain state as Block Specimens which are enriched by Block Results Producers and stored across distributed operator nodes. Network Operators stake CXT tokens as an economic bond covering roles including Block Specimen Producer, Block Results Producer, and Ethereum Wayback Machine Light Client, with cryptographic proofs verifying data accuracy at each stage. The Ethereum Wayback Machine component preserves complete Ethereum historical state as the protocol moves toward state expiry under EIP-4444.

SpeedRun is a No-code platform for building and deploying full-stack on-chain applications using natural-language prompts. Users describe the application they want to build, and SpeedRun generates the code, handles on-chain deployments, and provides tooling for monetizing the resulting apps. The platform uses the same indexed data backbone as GoldRush for sub-second on-chain data access and is designed to support autonomous agent deployment.

Web3Auth SDK, now offered as MetaMask Embedded Wallets, is a developer tooling product that lets applications embed self-custodial wallet functionality without requiring browser extensions or seed phrases. It authenticates users through email, social logins, or passkeys, then generates keys using multi-party computation so no single party ever holds a complete private key. The SDK bundles account abstraction support for smart accounts with gasless and batched transactions, multi-factor recovery options, and wallet services such as fiat-to-crypto funding and swaps, enabling developers to onboard users into onchain applications across multiple blockchain ecosystems from a single integration.

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.

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.

Hubra Agent API is a developer interface exposing Hubra's staking, unstaking, and yield functions through an HTTP API for programmatic access. It allows autonomous agents and third-party applications to query staking data and execute native staking, liquid staking, and stablecoin yield operations without using the consumer web app. The interface complements the consumer-facing Hubra app by targeting software integrations rather than manual wallet interaction.

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.

Token Gateway is a developer tooling to accept payments in a project’s own token and unlock features for token holders with tiered access controls.

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.

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.

Invariant SDK is a developer toolkit that wraps the Invariant protocol smart contracts for building applications on top of the exchange. It handles transaction signing and constant address storage, letting developers integrate pool creation, position management, and swaps into their own applications. The SDK is published as a separate package for each network the protocol is deployed on and is distributed through public repositories outside the web app.

A decentralized protocol infrastructure that enables the creation and management of on-chain investment funds and indices, with automated rebalancing and real-time tracking capabilities.

The Symmetry SDK is a developer toolkit that provides programmatic access to the Symmetry vault protocol on Solana. It enables developers to fetch vault data, load oracle-based pricing, create and configure vaults, and build deposit, withdrawal, and rebalancing transactions. The SDK supports both standard and extended Solana token standards and integrates multiple oracle sources for pricing vault assets, allowing third parties to build custom applications on top of the protocol.

Symmetry V3 is a decentralized vault protocol on Solana that lets users create tokenized, programmable multi-asset vaults. It supports up to 100 underlying tokens per vault with individually configurable target weights, minting a single vault token representing proportional exposure. Rebalancing is automated through Dutch auctions using oracle price snapshots, while vault configuration changes and automation such as limit orders, scheduled rebalances, and conditional strategies are executed by permissionless keepers through an intent-based system. The product is in open beta on Solana mainnet, running alongside the earlier version of the protocol.

Tsuko is a developer tooling product providing paymaster-as-a-service functionality on ZKsync Era. It lets projects create, customize, and manage paymasters, the smart contracts that cover transaction fees on behalf of end users, without writing custom code. Software development kits extend this functionality, letting developers integrate paymaster support directly into their own applications. Development teams use Tsuko to offer gasless or sponsored transactions within their applications on ZKsync.

Visor is a developer tooling product that automates recurring blockchain transactions on ZKsync Era. It is designed to schedule and execute tasks such as paying dividends, managing expenses, or triggering contract interactions on a set schedule, while keeping funds under the user's control. The product is intended for developers and businesses needing recurring on-chain operations without manual intervention.

Playground is a sandbox environment for testing txSync products on ZKsync Era without using mainnet funds. It lets developers and users try features of the portal, bridge, and paymaster tooling in a risk-free setting before committing real assets. The product supports evaluation and learning for those exploring the broader product suite.

Rio is a stablecoin foreign exchange platform that enables businesses and institutions in Latin America to convert between local currencies and stablecoins. It provides real-time on-chain conversion, an over-the-counter desk for large bilateral trades, and continuous liquidity and market-making services for exchanges and fintechs. Developer APIs let companies embed stablecoin conversion and pay-in and pay-out flows directly into their own applications. All offerings share a single account and platform, serving fintechs, exchanges, and institutional clients seeking access to stablecoin liquidity across multiple currencies and blockchains.

Developer APIs enabling fintech and blockchain companies to integrate compliant USD banking solutions, including deposit webhooks, payment automation, beneficiary management, and embedded banking capabilities.

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 is a developer API for commission-free trading of stocks, options, and crypto through REST and WebSocket interfaces. It supports real-time order execution, portfolio management, and a paper trading simulation environment for strategy testing, alongside margin, fractional share, and automated order routing capabilities. An OAuth connection flow lets third-party applications link end-user Alpaca accounts for live trading, and a Model Context Protocol server exposes the same trading and market data functions to AI assistants through natural-language commands.

Broker API is brokerage infrastructure that lets businesses embed stock, options, fixed income, and crypto investing into their own applications. It handles account opening, funding, trade execution, custody, and regulatory reporting for end users on behalf of the client business. The API supports local currency trading, funding wallets, omnibus sub-accounting, and white-label brokerage services for fintech companies and financial institutions across multiple jurisdictions.

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.

CoinCraddle API is a developer API that lets cryptocurrency exchanges, wallets, payment services, and other crypto projects embed swap functionality into their own applications. It provides access to the same aggregated liquidity as the CoinCraddle Exchange and lets integrators configure their own fee structure, with payouts available in BTC or USDT. The API supports fixed and floating rate quotes and swap creation and status endpoints for automated integrations.

Roqqu API Services is a developer platform providing programmatic access to Roqqu's crypto payment infrastructure for businesses. It exposes endpoints for generating addresses, checking transaction status, and sending or receiving tokens across multiple cryptocurrencies through HTTP requests. Businesses use it to embed crypto address generation and payment processing into their own applications.

Coinone API is a developer interface exposing REST and WebSocket endpoints for market data and account operations with versioned references and real-time streams.

Swift Developer Portal is a centralized API catalogue with documentation, sandbox environments, and developer tooling for Swift service integration. The portal hosts API specifications for payments tracking, reference data, financial messaging, compliance screening, and securities services. Standards tools including MyStandards and Swift Translator support message standards management and MT-to-ISO 20022 format translation.

Roller is a command-line tool for deploying and operating RollApps on Dymension. Operators use it to run RollApp sequencers, manage full nodes, and operate eIBC clients for processing cross-chain withdrawals. The tool includes pre-built primitives for DeFi oracles, random number generation, and AI oracles to support common RollApp integrations. A companion frontend SDK, Dymension Connect, allows RollApp developers to add signless user authentication and wallet connectivity to their applications.

The DEXTools HTTP API is a developer tooling product that gives programmatic access to decentralized exchange trading data collected by the DEXTools platform. It returns structured information on trading pairs, tokens, exchanges, and pools, with filtering and sorting by blockchain or token, and delivers near real-time updates when new trading pairs appear on supported networks. Developers and third-party applications use the API to integrate DeFi market data into their own tools without building direct blockchain indexing infrastructure.

ForgeBox is an open-source hardware development kit that provides a secure hardware foundation for developers to build and deploy their own custom code. It is built with multiple secure element chips and a self-destruct mechanism, allowing developers to establish their own root of trust so that only code signed by their private key can execute on the device. The product targets Web3 developers building custom security applications rather than end users seeking a ready-to-use wallet.

CosmES is an open-source developer library for building applications on Cosmos-based blockchains. It provides developers with tooling to query chain data and interact with smart contracts when building decentralized applications within the Cosmos ecosystem. The library is maintained and published by Coinhall for external developers to integrate independently of the Coinhall trading terminal.

RISC Zero zkVM is a zero-knowledge virtual machine that enables developers to write applications with verifiable computation in Rust and other languages.

Bonsai is a decentralized proving engine that allows developers to integrate ZK proofs into applications.

Steel enables developers to run Solidity contracts in RISC Zero's zkVM. It uses off-chain execution with on-chain verification to reduce gas costs and enhance smart contract capabilities.

Titan Prime API is a developer tool providing programmatic access to Titan's meta-aggregation and routing infrastructure on Solana. It lets integrating applications retrieve optimal swap quotes by comparing multiple routing sources through active simulation, execute trades with no platform swap fees, and stream pricing data in real time. The API is aimed at developers and partner platforms building trading features rather than end users trading directly.

Titan Limit Orders is an on-chain limit order program on Solana that lets searchers and takers fill resting orders placed by traders. It operates through a dedicated smart contract deployment separate from the swap routing infrastructure, exposing taker order placement, order events, and error handling through its own developer interface. The program is used by algorithmic searchers seeking order flow rather than by retail traders directly.

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.

D3 Integration provides partner integration options for domain token sales through three methods. The system offers affiliate link generation for basic redirects, customizable widgets for embeddable interfaces, and comprehensive APIs for full application integration. Developers implement these tools to incorporate domain name searching, purchasing, and management into existing platforms. The suite supports multiple blockchains while maintaining standard domain functionality.

SingularityNET Platform operates as a decentralized marketplace for AI services, enabling developers to publish, discover, and monetize AI algorithms across multiple domains including computer vision, natural language processing, and robotics through blockchain-based transactions.