Smart contracts & SDKs

Best for Fast Solidity build, test and deploy toolkit

Catch Built for EVM chains only; no chain-specific badges beyond Ethereum

Chains

Ethereum Any EVM chain

Price

Free (open source)

Best for Plugin-based TypeScript environment for EVM contracts

Catch Built for EVM chains only; no chain-specific badges beyond Ethereum

Chains

Ethereum Any EVM chain

Price

Free (open source)

Best for Standard Solidity token and access-control contracts

Catch Solidity only; Stellar needs OpenZeppelin's separate Soroban library

Chains

Ethereum Any EVM chain

Price

Free (open source)

Best for The standard framework for Solana programs

Catch Solana only, and you write programs in Rust

Chains

Solana

Price

Free (open source)

Best for Algorand's official toolchain for contracts and LocalNet

Catch Algorand only

Chains

Algorand

Price

Free (open source)

Best for Reference JavaScript library for the XRP Ledger

Catch JavaScript and TypeScript only; other languages need a different XRPL library

Chains

XRPL

Price

Free (open source)

Best for Official SDK for Horizon, Stellar RPC and Soroban contracts

Catch Stellar only; JavaScript and TypeScript

Chains

Stellar

Price

Free (open source)

Best for Official SDK for Hedera accounts, tokens, consensus and contracts

Catch Hedera native services only; for EVM tooling use the JSON-RPC relay

Chains

Hedera

Price

Free (open source)

Best for Official JavaScript library for Xahau

Catch Xahau only, and the quickstart uses testnet

Chains

Xahau

Price

Free (open source)

Best for Scaffold, compile and test Xahau Hooks

Catch Docs only show a testnet setup, and the toolkit is GPL-3.0

Chains

Xahau testnet ex. (Docs checked only show testnet; mainnet not verified in this review)

Price

Free (open source)

Best for Work with Evernode hosts and leases from your own app

Catch Under Evernode's own license, and we couldn't confirm recent activity

Chains

Xahau

Price

Free on npm

Best for Building and signing Sui transactions from TypeScript apps

Catch Public Mysten endpoints are rate-limited; bring your own RPC for production traffic

Chains

Sui

Price

Free (open source)

Best for Compiling, testing and publishing Sui Move packages

Catch Install the build matching your target network (suiup install sui@testnet or @mainnet)

Chains

Sui

Price

Free (open source)

Best for Reading Aptos data and submitting transactions from TypeScript

Catch Source-available license; commercial use only for apps built exclusively on Aptos

Chains

Aptos^* (network not stated)

Price

Free (source-available)

Best for Compiling, testing and publishing Aptos Move contracts

Catch Built from aptos-core under a source-available license, not Apache or MIT

Chains

Aptos

Price

Free (source-available)

Best for Building, testing and deploying Tolk contracts on TON

Catch No native Windows support; run it under WSL with Ubuntu 20.04 or newer

Chains

TON

Price

Free (open source)

Best for Reading TON state and sending transactions from JavaScript

Catch Docs are mostly the README; expect to read examples and source

Chains

TON

Price

Free (open source)

Best for Calling NEAR contracts from backends, scripts and CLIs

Catch v7 replaces the @near-js packages; older code may need migrating

Chains

NEAR

Price

Free (open source)

Best for Building and deploying Rust smart contracts on NEAR

Catch Reproducible builds use Docker and committed, pushed source only

Chains

NEAR testnet ex. (Docs checked only show testnet; mainnet not verified in this review)

Price

Free (open source)