List of Developer Tooling companies in Web3 (2026)

Dwellir Agent Toolkit provides tooling for AI agent interactions with blockchain RPC infrastructure, including a CLI with structured JSON output using a standard response envelope, agent-optimized documentation following the llms.txt specification, an automated RPC migration prompt for codebase scanning and endpoint replacement, and a portable Hyperliquid agent skill compatible with multiple AI coding tools.

Full-stack toolkit for building, deploying, and managing web3 applications on EVM-compatible blockchains with smart contract tools, SDKs, and infrastructure.

Relay SDK provides developers with tools to integrate cross-chain bridging, swapping, and execution into applications. The SDK includes hooks, UI components, and APIs for implementing Relay functionality across EVM and non-EVM chains.

Topper is a fiat-to-crypto on-ramp and crypto-to-fiat off-ramp delivered through an embeddable widget and developer APIs for business partners and wallets. Consumers buy crypto directly to a self-custodial wallet using cards, digital wallets, or bank transfers, and sell crypto to receive fiat on a linked debit card. The product supports recurring purchases and integrates via a web SDK, mobile SDK, REST API, webhooks, and single sign-on for partner applications.

A developer toolkit enabling dApps to integrate cross-chain swap functionality through standardized APIs, supporting EVM and non-EVM chain architectures with configurable routing parameters, custom fee structures, and modular swap logic implementation for embedded cross-chain transaction capabilities.

SODAX SDK is a developer toolkit enabling applications to integrate cross-network DeFi capabilities including swaps, lending, borrowing, bridging, and staking through a single interface. It uses a three-layer architecture: a core foundation layer for direct protocol access, a wallet connection layer for multi-chain wallet providers, and a pre-built React component layer for rapid application development. Developers access the SODAX solver and money market across multiple blockchain networks through unified API endpoints without building cross-network infrastructure independently.

Zora Protocol SDK provides TypeScript libraries and utilities for developers to interact with Zora contracts, enabling NFT creation, minting, and trading functionality.

Enterprise-grade trading infrastructure with millisecond response time and deep liquidity for developers to integrate.

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.

KaiaPotter is a specialized node validation tool built for KAIA Network, providing infrastructure services and validation capabilities for the merged Klaytn and Finschia blockchain ecosystem.

VTAP provides API infrastructure for banks to mint, burn, and transfer fiat-backed tokens on blockchain networks through smart contract integration. The platform offers sandbox testing environments and supports multi-chain token issuance with minimal technical integration requirements.

AMIS provides enterprise blockchain infrastructure through patented technologies including Istanbul BFT consensus algorithm and Hierarchical Threshold Signature Scheme. The platform offers custodial wallet services, PoS protocol implementations, and Layer 2 framework solutions for financial institutions.

NFTScan Developer Platform delivers comprehensive NFT data services through REST APIs, enabling developers to access ERC-721 and ERC-1155 asset information, transaction records, collection statistics, and marketplace data across multiple blockchain networks.

Decentralized random number generation protocol providing verifiable entropy for blockchain applications. Implements multiple sources of randomness with cryptographic verification and tamper-proof delivery. Features customizable request parameters, variable output formats, and cross-chain compatibility for gaming, NFT, and randomized application requirements.

Synapse SDK provides developers with tools to integrate cross-chain bridging functionality into their applications through programmatic access to Synapse Router functions.

Steer's Liquidity Kit supplies developers with hooks for Uniswap V4, Algebra Integral, and PancakeSwap V4 protocols plus ERC-4626 vault architecture components for building automated liquidity strategies.

Codex Dashboard provides API key management, usage monitoring, and billing controls for developers integrating with the Codex API.

Range API provides access to blockchain intelligence infrastructure, enabling address screening, compliance checks, and real-time transaction risk detection through programmatic interfaces.

Ramper SDKs is a developer SDKs that embed wallet creation and fiat on-ramp flows inside applications.

Dialect Protocol is a developer tooling framework implementing decentralized messaging infrastructure through Solana programs, enabling wallet-to-wallet communication and dApp notifications. The protocol provides low-latency message delivery using onchain addressing while storing message content off-chain, and it processes wallet authentication, encrypted data transmission, and notification routing. It supports integration with external messaging backends and front-end frameworks, forming the underlying infrastructure that powers the Blinks, Alerts, and Markets and Positions products.

Kiln Connect implements unified staking integration through SDK and APIs, enabling programmatic staking operations and rewards tracking. The system provides transaction crafting and reporting APIs while supporting multiple custody solutions.

Guardarian Widget is an embeddable interface component that businesses can insert into their websites to enable direct cryptocurrency purchases without technical development. The widget is customizable in size, direction, and theme, and connects to the underlying exchange to complete transactions. It provides a plug-and-play alternative to full API integration for partners seeking a faster setup.

PeerAuth is a browser extension that helps buyers authenticate payment transactions when completing fiat-to-crypto trades on the Peer platform. It opens the selected payment provider, captures only the metadata required to verify a transaction, and encrypts sensitive session material before sending it to a verified attestation service. The tool does not store a wallet, browsing history, or persistent account data, and is used by traders needing faster, privacy-preserving payment verification.

Movement SDK offers modular framework tools for building and deploying Move-based infrastructure and applications, enabling developers to create custom blockchains and rollups with Move security guarantees.

Particle Auth provides social login infrastructure for Web3 applications, enabling one-click user onboarding through popular platforms like Google and Twitter. The system generates smart accounts while maintaining familiar Web2 authentication flows.

Luno API provides programmatic access to trading, wallet management, and market data functionality through REST endpoints and WebSocket connections. The API supports authentication, order management, and cryptocurrency transfers with official SDKs in Go, Python, and PHP.

TokenFi Generative AI is an artwork generation tool utilizing AI algorithms to produce NFT imagery. The system accepts text prompts and generates unique digital artwork for token launches and collections.

MetisSDK is a developer framework for building custom blockchain networks and execution layers. The toolkit enables creation of specialized blockchain infrastructure with modular components and cross-chain interoperability.

An API and SDK for developers to integrate multi-chain token swaps into their applications, supporting both DEX aggregation and cross-chain transactions.

CDP SDK provides client libraries for managing crypto wallets while relying on Coinbase infrastructure to secure private keys. The SDK enables programmatic wallet creation, address management, balance tracking, and transaction execution across EVM-compatible chains and Solana networks.

A fully privatized, white‑label MPC‑TSS infrastructure with server‑side middleware secured by Intel SGX and SDKs for web, iOS, and Android. It enables keyless wallets and custody systems with configurable thresholds, HD derivation compatible with BIP44, hardware‑level protections, and broad multi‑chain support for exchange, payment, and cold‑wallet use cases.

StaFi LSaaS is a developer toolkit that enables Layer 1 teams, project developers, and startups to deploy liquid staking protocols without building infrastructure from scratch. The stack provides modular smart contract frameworks for EVM and Cosmos environments, supporting both LST and LRT deployment. Builders configure staking pool logic, validator delegation, and token issuance through pre-built components maintained by the StaFi development team.

GoPlus provides Security SDKs to facilitate the integration of its security services into various platforms, including wallets and dApps. These SDKs enable developers to leverage GoPlus's security capabilities, ensuring robust protection for user transactions across multiple blockchain environments.

Axelar Virtual Machine enables developers to write smart contracts on Axelar while scaling interchain deployments and programming the cross-chain networking layer. It provides tooling to build interoperable applications that operate across connected blockchains. The system is used by developers building and managing cross-chain logic on the Axelar network.

Tatum Platform is a unified blockchain development toolkit providing RPC nodes, APIs, SDKs, and developer tools for building Web3 applications. The system offers access to multiple blockchain protocols through standardized interfaces while maintaining cross-chain compatibility and enterprise-grade infrastructure.

Unified AI platform providing smart contract generation and auditing, trading analysis, trading assistance and blockchain information through conversational AI interfaces trained on Web3 data.

Rango SDK provides programmatic access to Rango's cross-chain aggregation functionality through a JavaScript/TypeScript library. Developers can integrate token-swapping capabilities across multiple blockchains into their applications with comprehensive API support.

A REST API that allows developers to integrate Uphold’s trading, accounts, authentication, and other platform functions into their own applications.

Prime SDK is a development toolkit that removes Web3 usability barriers by providing ERC-4337 account abstraction infrastructure. The SDK enables developers to build applications with gasless transactions, transaction batching, and cross-chain functionality across multiple EVM networks.

DODO Trading Widget provides developers with customizable trading and cross-chain swap functionality for integration into dApps through a user-friendly interface without building from scratch.

deBridge Liquidity Network is a cross-chain and same-chain trading infrastructure that provides fast, capital-efficient swaps with guaranteed rates. Users specify desired outcomes through orders, which professional solvers fulfill competitively by supplying tokens on destination chains immediately and later claiming source tokens, all secured by the underlying messaging layer. The network operates on a zero-TVL model without traditional liquidity pools, enabling near-instant settlement, zero slippage, and delivery of native rather than wrapped assets. It is accessible through a trading interface, an API for custom integrations, and an embeddable widget.

Consumer App manages decentralized credit, enabling card management and financial service access without selling crypto.

IOTA Notarization is a toolkit for creating and managing tamper-proof records on IOTA, currently available as an alpha release.

BuildKit provides API and SDK infrastructure for developers to embed Kamino yield and credit products into external applications. The toolkit enables deposit, withdrawal, rate checking, and position monitoring functions through documented endpoints. Integrators can implement revenue sharing on yields generated for platform users. BuildKit supports Privy embedded wallets for user onboarding without private key management.

Mayan SDK is a JavaScript library that enables developers to integrate cross-chain swap functionality into wallets, dApps, and marketplaces. It exposes Mayan's three transfer methods — Swift, MCTP, and Wormhole Swap — and automatically routes each transaction to the optimal method based on asset type, size, and destination chain. An optional referral fee system allows integrators to earn revenue on swaps executed through their implementation.

Hyperlane CLI is a command-line deployment and management tool for Hyperlane contracts, enabling developers to deploy core contracts, configure Warp Routes, and manage cross-chain applications through terminal commands.

Sphere API provides RESTful endpoints for developers to integrate payment processing, subscription management, and currency conversion functionality into applications.

Autoscout is a self-service deployment platform enabling users to launch customized block explorers for EVM-compatible chains within minutes. The system provides hosted infrastructure, automatic updates, and configuration options for testnets, rollups, and production mainnets.

Move Code Playground is a browser-based integrated development environment for the Move programming language, enabling developers to write, test, and deploy smart contracts without local setup. The platform supports Aptos and other Move-based blockchain development.

MPC Hot Signer is a containerized transaction signing service for enterprise operators integrating with the Bron platform. Deployed via Docker or Kubernetes, it connects to the Bron API using dedicated API keys and stores encrypted MPC shards in a PostgreSQL database. Supports AWS KMS, Google Cloud KMS, Azure Key Vault, and local master password encryption for shard protection. Includes built-in Prometheus metrics for operational monitoring. Functions as an automated alternative to the Bron desktop application for non-interactive transaction signing workflows.