List of Developer Tooling companies in Web3 (2026)

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

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

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.

An operator-run service that converts Ethereum-like transactions into Solana-compatible transaction batches, providing full Web3 API compatibility for Ethereum clients. The proxy handles transaction pre-testing, gas estimation, and multi-transaction packaging to overcome Solana's account limits while maintaining Ethereum development workflows.

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

Ready-to-use blockchain data API service exposing extensive blockchain data collections through GraphQL interfaces, from generic to application-specific datasets.

GraphQL IDE for interacting with DipDup APIs, featuring a query editor, interactive explorer, and documentation integration for improved developer experience.

Fonbnk Server-to-Server API is a developer tooling product that lets businesses integrate on-ramp and off-ramp crypto conversion directly into their own applications. Developers authenticate through the merchant dashboard, sign requests, and call endpoints to create orders, check statuses, and receive webhook notifications as transactions progress. It exposes the same underlying mobile-money-to-stablecoin conversion logic as the Pay Widget but without a hosted user interface, allowing wallets and platforms to build custom flows.

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.

Immutable Hub is a web-based developer console for studios building on Immutable's products. It manages projects, API keys, and wallet clients, deploys smart contracts from preset templates without code, and distributes testnet tokens. Studios also configure audience, checkout, and marketplace features through it and reach live developer support and documentation.

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.

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.

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.

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.

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.

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.

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.

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.

swap.coffee DEX Aggregator is a decentralized exchange aggregation platform on the TON blockchain that routes trades across multiple decentralized exchanges and liquidity pools to secure optimal swap rates. It combines routing and transaction splitting with limit orders, dollar-cost and value averaging strategies, and a yield discovery service that surfaces pools, staking, and lending opportunities across the ecosystem in one dashboard. Users can also stake supported tokens, claim rewards through an integrated claim center, and participate in referral and cashback programs from the same account. Developers can access the platform's routing engine through an API, SDK, embeddable swap widget, and an MCP server that exposes trading data to AI agents.

Libdogecoin is a developer library that provides core Dogecoin protocol functions for building applications and wallets. It exposes portable functions for key generation, transaction construction, and address handling without requiring a full node implementation. Developers use it to embed Dogecoin support into new software across multiple platforms.

Portals API is a developer API for DeFi aggregation, swap execution, and on-chain data retrieval. It lets developers add DEX aggregation, zap functionality that enters or exits positions from any held token, and real-time and historical token data to their applications. Endpoints cover token information, network support, 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.

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.

Carbium DEX is a DEX aggregator on Solana that routes token swaps across multiple liquidity sources for best-rate execution. Users connect a wallet, review the route, and sign in the browser, with gasless swaps that need no SOL for fees and MEV protection on submitted transactions. The app also offers a bridge for moving assets onto Solana, a feed of newly listed pairs, and tools for consolidating small token balances. It is used by Solana traders who want one interface for swapping, bridging, and token discovery.

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.

Build Your DEX is a developer toolkit that lets teams launch their own branded decentralized exchange using the Helix trading frontend and its underlying order book infrastructure. Developers clone an open-source reference implementation and configure branding, supported markets, quote assets, and enabled trading features such as order types, portfolios, and trading bots. It provides a ready-made frontend and market configuration layer rather than requiring exchange infrastructure to be built from scratch. The toolkit is aimed at teams that want to operate an independent exchange interface backed by the same liquidity and matching engine as Helix.

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.

Tinyman Swap Widget is an embeddable token-swap interface that third-party websites and applications can integrate to let their own users trade Algorand Standard Assets. It connects to the underlying Tinyman exchange protocol to source pricing and execute swaps directly from a user's self-custody wallet within the host application. Developers embed the widget without building their own swap interface or managing liquidity 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 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.