

Build an ecosystem optimized for your goals while opening up new revenue streams.
Eth.rb, Coinbase and Core API each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. A Ruby library to build, sign, and broadcast Ethereum transactions with full smart contract support. A comprehensive suite of APIs, SDKs, and developer tools from Coinbase to build onchain applications and integrate crypto services. A Document Object Model for Web APIs designed to simplify API consumption and integration. 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 | RPC Client for Execution Layer APIs, Ethereum Key-Pairs and Encrypted Keystores, Support for Multiple Ethereum Transaction Types | Super Pay App, Onramp Demo App, AI Server Wallet | Dynamic API Discovery, Open Source Repositories |
| Chain Support | +84 | +40 | |
| Best For | Infrastructure Developers, DeFi Developers | DeFi Developers, Financial Institutions | Infrastructure Developers, DeFi Developers |
| Pricing | |||
| Free Tier | Open Source | Custom | — |
| Paid Features | — | — | — |
| Custom Plans | — | — | — |
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