
Build an ecosystem optimized for your goals while opening up new revenue streams.
Cosmos SDK, Virtual TestNets and Connext each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. A modular, open-source framework for building secure, sovereign, and interoperable Layer 1 blockchains. Virtually operated Web3 networks that replicate real blockchain networks for development, testing, and staging without using real assets. 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 | CometBFT Consensus Engine, CosmWasm Smart Contracts, Interchain Accounts | Public and Admin RPC endpoints, Visual dashboard for management and monitoring, Integration with popular development frameworks | xCall Primitive, xERC20 Tokens, Cross-Chain Restaking |
| Chain Support | — | +21 | +5 |
| Best For | Infrastructure Developers, DeFi Developers | DeFi Developers, Infrastructure Developers | DeFi Developers, Infrastructure Developers |
| Pricing | |||
| Free Tier | Open Source | Free | Standard |
| Paid Features | — | 1 paid tiers | — |
| Custom Plans | — | — | — |
Explore web3 competitors and apps like Cosmos SDK.

Gelato provides infrastructure and SDKs to build smart wallets, gasless transactions, and custom rollups with ERC-4337 & 7702 support across 100+ chains.

Orbiter Finance is a zero-knowledge technology-based Ethereum acceleration engine that enables fast, affordable, and secure bridging and swapping of crypto assets across multiple blockchain ecosystems.

Crossmint is an all-in-one platform that integrates wallets, stablecoins, tokenization, and payment primitives into apps and products with easy APIs and no blockchain complexity.

Binance is a leading global blockchain ecosystem and cryptocurrency infrastructure provider offering a range of developer tools and open-source projects.

An Ethereum development environment for compiling, testing, debugging, and deploying smart contracts with advanced Solidity and TypeScript support.

An open source platform for creating and deploying private blockchains with Bitcoin compatibility.

Chorus One is a leading institutional staking provider offering infrastructure and staking services for 40+ Proof-of-Stake networks.

QuickNode provides fast, reliable, and scalable blockchain infrastructure and developer tools to build and scale onchain applications.