


Build an ecosystem optimized for your goals while opening up new revenue streams.
Solana Web3.js, Synapse Protocol and Connext each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. JavaScript SDK for interacting with the Solana blockchain, enabling developers to build web3 applications using JavaScript and TypeScript. Synapse is an interchain messaging protocol and cross-chain bridge enabling decentralized applications to operate across multiple blockchains. 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 | Account and Transaction Management, Program Deployment and Interaction, Token Operations | Synapse Bridge, Synapse Router SDK, Bridge Widget | xCall Primitive, xERC20 Tokens, Cross-Chain Restaking |
| Chain Support | +9 | +5 | |
| Best For | DeFi Developers, NFT Platform Developers | Infrastructure Developers, Cross-chain/Bridge Developers | DeFi Developers, Infrastructure Developers |
| Pricing | |||
| Free Tier | Open Source | Free | Standard |
| Paid Features | — | — | — |
| Custom Plans | — | — | — |
Explore web3 competitors and apps like Solana Web3.js.



