Open-source TypeScript packages for the layer every self-custodial app rebuilds: connect wallets, sign users in with one CAIP-122 flow, and follow every transaction to its final status, even after a page reload. Add ready-made React components, and run the backend in our cloud or on your own servers. No per-user pricing.
npx @tuwaio/create-cosmos-playgroundStart from a ready-made Next.js or Vite template
See Satellite Connect (wallet connection), Pulsar (transaction tracking) and Nova UI Kit (toasts and modals) work together. Try the simulation, or connect your wallet and send real transactions on Sepolia and Solana Devnet.
Test transaction tracking with a simple counter contract
Connect wallet to view and track your contract transactions
💡 Automated visual sandbox
The whole stack for EVM and Solana apps. Install it as one package, @tuwaio/sdk, or pick only the packages you need.
Multi-chain helpers for EVM and Solana: chain and account IDs (CAIP-2, CAIP-10, CAIP-19), cached viem and @solana/kit clients, ENS and SNS names, ERC-4337 smart accounts.
One CAIP-122 sign-in flow for EVM and Solana wallets, verified on your own server, with sessions, single-use nonces and JWT for external auth providers.
Headless store for EVM and Solana wallet connections with React bindings. Built on open wallet standards: wagmi with EIP-6963 and Wallet Standard.
Transaction tracking for EVM and Solana that survives page reloads: pending, successful, failed and replaced transactions, including ERC-4337, EIP-5792 call batches and Safe.
Server-side transaction tracking, history on every device and signed webhooks. Use Quasar Cloud, or self-host the open-source Community Edition.
React components for wallet connection and transactions on EVM and Solana: connect button and modals, transaction toasts and history, themed with CSS variables.
One package for React apps that re-exports Orbit Utils, SIWX, Satellite Connect, Pulsar and Nova UI Kit under subpaths, plus an add-on for EVM or Solana.
Built for self-custodial apps: your users keep their keys, your servers keep the data, and TUWA collects no telemetry.
Pulsar persists transactions to localStorage and resumes tracking after a reload; Satellite reconnects the last wallet. No telemetry is sent to TUWA, and every third-party host (RPC, WalletConnect relay, Gelato, SNS) is opt-in and listed in each package README.
The client packages are free, and Quasar Cloud is free during its public beta, with 1,000 free quota units for every organization. Its quota counts tracked transactions, not monthly active users, so growing your user base never hits a subscription cliff.
Multi-chain sign-in follows CAIP-122, and wallets are found through Wallet Standard and EIP-6963 (via wagmi), so you can change wallets and providers without rewriting your app.
Every client package is open source, and the Quasar backend is also available as the free, self-hosted Community Edition, deployed with Docker Compose.
See how TUWA stacks up against RainbowKit, Privy, thirdweb and more, criterion by criterion, with a source for every fact.
Explore Comparisons & Radar→What has shipped, what is in progress and what comes next: from the first packages to the open-source backend and native payments.
Run one command, pick a template, and get a working Next.js or Vite app with wallet connection, sign-in and transaction tracking.
Run the command in your terminal: the CLI asks for a template and a project name.
Choose a Next.js or Vite template: EVM only, Solana only, EVM + Solana, or the full TUWA stack with Quasar sync.
Fill in .env, run the dev server and start building.
pnpm add @tuwaio/sdk @tuwaio/evm-sdk @wagmi/core viempnpm add @tuwaio/sdk @tuwaio/solana-sdk @solana/kitThe TUWA packages are released under the Apache 2.0 license and the starter templates under MIT-0, so you can copy the templates with no attribution required.
Run one command, pick a template, and get a working Next.js or Vite app with wallet connection, sign-in and transaction tracking.
pnpm add @tuwaio/sdk @tuwaio/evm-sdk @wagmi/core viempnpm add @tuwaio/sdk @tuwaio/solana-sdk @solana/kitThe TUWA packages are released under the Apache 2.0 license and the starter templates under MIT-0, so you can copy the templates with no attribution required.
Need help getting started? Read the guides on docs.tuwa.io, or browse the code on GitHub.
Explore GitHubOpen source • TypeScript • Apache-2.0
Short answers about what TUWA is, how it works and how it differs from hosted wallet services.
@tuwaio/sdk, or only the packages you need.Read why transaction state breaks, how CAIP-122 sign-in works, and how TUWA compares.