Hardhat vs Core API vs 0x
Build an ecosystem optimized for your goals while opening up new revenue streams.
Comparison Summary
Hardhat, Core API and 0x each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. An Ethereum development environment for compiling, testing, debugging, and deploying smart contracts. A Document Object Model for Web APIs designed to simplify API consumption and integration. 0x provides battle-tested APIs to embed fast, gasless, and deeply liquid crypto trading into decentralized 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 | Detailed Solidity stack traces and actionable error messages, Local in-memory blockchain for fast testing, Support for multi-network development including Optimism OP Stack and Base simulation, TypeScript extensibility and scripting | Dynamic API Discovery, Open Source Repositories | Swap API, Gasless API, Trade Analytics API, Multi-chain support, Developer dashboard |
| Chain Support |  |     +40 |    +9 |
| Best For | DeFi Developers, Infrastructure Developers | Infrastructure Developers, DeFi Developers | DeFi Developers, Infrastructure Developers |
| Pricing | |||
| Free Tier | Free | — | Starter |
| Paid Features | — | — | 1 paid tiers |
| Custom Plans | — | — | — |
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