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31 hand-verified developer tooling projects deployed on or supporting Optimism. The sector comprising services, products, and frameworks that support developers in designing, building, and deploying dApps and smart contracts on blockchain platforms.
31 projects found · Last updated Sep 11, 2026
Optimism (OP Mainnet) is a Layer 2 optimistic rollup chain on Ethereum that processes transactions off-chain and posts batched data to L1 for settlement. The rollup inherits Ethereum security through fraud-proof verification, where invalid state transitions can be challenged within a withdrawal period. Developers deploy unmodified Solidity contracts with reduced gas costs while users access decentralized applications at significantly lower fees than mainnet.
View the Optimism profile →Showing 1–31 of 31 results
Stablecoin infrastructure for the new economy
Crossmint is a blockchain infrastructure company providing wallets, stablecoin payments, and tokenization APIs. It serves enterprises, developers, and AI agents building onchain products.
Stablecoin Finance Infrastructure
Portal helps developers integrate blockchain wallets into applications using MPC cryptography and embedded SDKs.
Web3's Backend
Envio helps developers index and stream blockchain data across EVM chains and Fuel using real-time APIs and hosted tooling.
Read, write, and build onchain
QuickNode provides blockchain infrastructure for developers and enterprises to build, deploy, and scale their applications.
Full-stack, open-source web3 development platform
Thirdweb is a platform offering tools for developers to build Web3 applications, including smart contracts, wallets, and decentralized infrastructure.
Infrastructure that moves billions at scale
Alchemy provides blockchain development infrastructure that simplifies building and scaling decentralized applications.
The limitless Web3 development stack
Chainstack is a blockchain infrastructure company that provides managed RPC nodes, data APIs, and developer tools across multiple networks for developers and enterprises.
Trusted crypto infrastructure to power your business
Coinbase Developer Platform provides developer tools and APIs for building blockchain applications, including wallets, onramps, data services, and agent frameworks.
The Blockchain Development Platform
Tatum is a blockchain development platform that provides unified APIs, RPC nodes, and developer tools for building Web3 applications across multiple protocols.
Account & Chain Abstraction Development Platform
Etherspot helps developers build Web3 apps with better user experience using ERC-4337 and ERC-7579 account abstraction infrastructure.
Developer ToolingHummingbot is an open source Python framework that helps you run automated trading strategies on any CEX and DEX.
Hummingbot provides an open-source framework for building automated trading bots that operate on multiple exchanges and blockchains.
Build in Web3 with RPC nodes. Block by block
GetBlock is a platform for accessing blockchain data through RPC nodes, enabling developers to connect to multiple networks easily.
Building the connectivity layer for the financial internet
Reown helps developers build secure onchain apps by providing developer toolkits for wallet connectivity and user experience infrastructure.
Ship faster with powerful APIs
Venly helps developers add Web3 features using APIs and SDKs for wallets, NFTs, tokens, and payments.
The best way to build onchain.
Magic helps developers build Web3 applications by providing passwordless authentication and non-custodial embedded wallet infrastructure.
Enterprise-Grade Web3 APIs
Moralis provides Web3 APIs and RPC nodes for developers to build and scale decentralized applications across multiple blockchains.
Developer ToolingMake wallets our problem. Not yours.
Openfort helps developers integrate wallet functionality by providing authentication, embedded wallets, and transaction management APIs.
One unified API for DeFi transactions and on-chain data sourcing
expand.network provides a unified API enabling developers to interact with multiple blockchains and DeFi protocols through a single integration point.
Build with the Smartest account
ZeroDev helps developers build smart account applications by providing ERC-4337 and EIP-7702 infrastructure with gas sponsorship and session keys.
THE AGENT COMMERCE HARNESS.
Daydreams is an open-source AI agent commerce framework that gives developers tools to build agents that sell capabilities, route payments, and access on-chain task markets.
Modular and extensible web3 API
DipDup is a blockchain data platform that provides a Python indexer framework and hosted GraphQL APIs for building Web3 application backends
Web3 infrastructure for every chain and developer
Sequence provides web3 development infrastructure for building games and applications with wallets, payments, and blockchain integration tools.
Universal Zero Knowledge
RISC Zero provides a zero-knowledge virtual machine for developers to build applications with cryptographic proofs for data privacy and security.
Where Smart Wallets get crafted
Candide helps developers build secure non-custodial digital wallets without seed phrases or gas management using Account Abstraction standards.
Etherscan for your blockchain
Ethernal is an open-source block explorer for EVM chains that lets users browse transactions, trace calls, and verify contracts.
Transaction Debugger and Simulator
Walnut is an open-source transaction debugging and simulation platform for smart contract developers, supporting Starknet, EVM chains, and the OP Stack.
We power unrivaled notification experiences in web3
Notifi Network provides cross-chain communication infrastructure for Web3 applications through messaging APIs and notification services.
Building Infrastructure for Decentralised AI
Tensorplex builds infrastructure and applications for decentralized AI development using blockchain technology and DeFi principles.
Easy-peasy event tickets and registration
An open source Ethereum protocol for memberships & subscriptions.
Never write a smart contract again
Halliday helps developers build blockchain applications faster through AI-powered workflow automation and payment infrastructure.
Network of Specialized Small Language Models
Platform for creating and monetizing Small Language Models (SLMs) with decentralized ownership and governance.