


Build an ecosystem optimized for your goals while opening up new revenue streams.
Stacks, Core API and Connext each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. Stacks is the leading Bitcoin Layer 2 blockchain that enables smart contracts and decentralized apps secured by Bitcoin. A Document Object Model for Web APIs designed to simplify API consumption and integration. 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 | Proof of Transfer consensus, Developer ecosystem and tooling, Stacking mechanism | Dynamic API Discovery, Open Source Repositories | xCall Primitive, xERC20 Tokens, Cross-Chain Restaking | 
| Chain Support | — | +40 | +5 | 
| Best For | DeFi Developers, Infrastructure Developers | Infrastructure Developers, DeFi Developers | DeFi Developers, Infrastructure Developers | 
| Pricing | |||
| Free Tier | Free | — | Standard | 
| Paid Features | — | — | — | 
| Custom Plans | — | — | — | 
Explore web3 competitors and apps like Stacks.

Synapse is an interchain messaging protocol and cross-chain bridge enabling decentralized applications to operate across multiple blockchains.
Tenderly is a full-stack Web3 development platform offering customizable node RPC, virtual testnets, debugging, simulation, and monitoring tools for smart contract lifecycle management.
Fuse is a public blockchain ecosystem designed for low-cost, scalable Web3 payments and business adoption with a focus on mobile-first and real-world use cases.

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

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

The Graph is a decentralized indexing protocol that organizes blockchain data and makes it easily accessible via GraphQL.

Virtually operated Web3 networks that replicate real blockchain networks for development, testing, and staging without using real assets.