

Build an ecosystem optimized for your goals while opening up new revenue streams.
0x, Virtual TestNets and Streams each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. 0x provides battle-tested APIs to embed fast, gasless, and deeply liquid crypto trading into decentralized applications. Virtually operated Web3 networks that replicate real blockchain networks for development, testing, and staging without using real assets. QuickNode provides fast, reliable, and scalable blockchain infrastructure and developer tools to build and scale onchain applications. Together, these tools serve different but overlapping user needs, making them valuable components in a modern web3 development stack.
| At a Glance | |||
| Composability | |||
| Cross-Chain | |||
| Customizability | |||
| Developer Support | |||
| Ease of Integration | |||
| Performance | |||
| Key Features | |||
| Core Capabilities | Swap API, Gasless API, Trade Analytics API, Multi-chain support, Developer dashboard | Public and Admin RPC endpoints, Visual dashboard for management and monitoring, Integration with popular development frameworks | Core RPC API, Streams - Real-Time and Historical Data, Dedicated Clusters, Yellowstone gRPC for Solana, Webhooks and IPFS Gateways |
| Chain Support | +9 | +21 | +30 |
| Best For | DeFi Developers, Infrastructure Developers | DeFi Developers, Infrastructure Developers | Infrastructure Developers, DeFi Developers |
| Pricing | |||
| Free Tier | Starter | Free | Free |
| Paid Features | 1 paid tiers | 1 paid tiers | 2 paid tiers |
| Custom Plans | — | — | Enterprise plans |
Explore web3 competitors and apps like 0x.

Gelato provides infrastructure and SDKs to build smart wallets, gasless transactions, and custom rollups with ERC-4337 & 7702 support across 100+ chains.
Tenderly is a full-stack Web3 development platform offering customizable node RPC, virtual testnets, debugging, simulation, and monitoring tools for smart contract lifecycle management.

Firebird Finance is a decentralized finance (DeFi) platform offering various financial products and services.

Balancer is a decentralized automated market maker (AMM) protocol enabling customizable liquidity pools and token swaps on Ethereum.

An Ethereum development environment for compiling, testing, debugging, and deploying smart contracts with advanced Solidity and TypeScript support.
Blast API is a decentralized Web3 infrastructure platform providing geographically distributed blockchain node APIs to improve reliability and latency.

Connext is a secure, fast modular interoperability protocol enabling cross-chain fund bridging and asynchronous Solidity development.

Synapse is an interchain messaging protocol and cross-chain bridge enabling decentralized applications to operate across multiple blockchains.