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Build an ecosystem optimized for your goals while opening up new revenue streams.
User-Controlled Wallets, Coinbase and Connext each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. A frontend sample app demonstrating integration of Circle's Web3 Services user-controlled wallets with gasless transactions. A comprehensive suite of APIs, SDKs, and developer tools from Coinbase to build onchain applications and integrate crypto services. Connext is a secure, fast modular interoperability protocol enabling cross-chain fund bridging and asynchronous Solidity development. 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 | Next.js and React-based UI, SDK integration with App ID and user tokens, PIN recovery and challenge execution | Super Pay App, Onramp Demo App, AI Server Wallet | xCall Primitive, xERC20 Tokens, Cross-Chain Restaking |
| Chain Support | +84 | +5 | |
| Best For | Infrastructure Developers, DeFi Developers | DeFi Developers, Financial Institutions | DeFi Developers, Infrastructure Developers |
| Pricing | |||
| Free Tier | Free | Custom | Standard |
| Paid Features | — | — | — |
| Custom Plans | — | — | — |
Explore web3 competitors and apps like User-Controlled Wallets.




