Changelog
Product updates for the Cavos embedded wallet SDK, plus guides for adding a self-custodial wallet to your app on Starknet, Solana, and Stellar.
Guides
Start with what an embedded wallet is, then the React integration, then a provider comparison if you already have a shortlist.
Embedded wallet
Custody models, key management, and how to choose an SDK.
What Is an Embedded Wallet? (2026 Definition)
A plain definition: how an embedded wallet works, who holds the key, and when to use one.
Wallet as a Service (2026): Providers, Pricing
Wallet as a service in 2026: definition, Privy, Dynamic, Turnkey, Dfns, Para vs Cavos, pricing units, and build versus buy.
Embedded Wallet API (2026): Auth, Sign, Gas
Auth, wallet create, key handling, signing, gas, and recovery, and how Cavos exposes that surface.
Non-Custodial Embedded Wallets: What They Are (2026)
Custodial vs MPC vs hardware-isolated passkeys: who can sign, and how to verify a vendor’s claim.
How to Add an Embedded Wallet to a React App
Install @cavos/kit, wrap CavosProvider, sign in, and send a sponsored transaction.
How to Add an Embedded Wallet to Next.js (2026)
App Router client boundary, env vars, callback URLs, vault origins, first sponsored execute.
Embedded Wallet vs Smart Wallet (2026)
In-app UX versus a contract account. They can be the same wallet.
Best Embedded Wallet (2026): How to Choose
Chain first, then custody, then connect versus provision. Not a single winner.
Embedded Wallet React SDK: Best Practices (2026)
Best practices for embedding a wallet SDK in a React or Next.js app with Cavos.
Embedded Wallet vs Browser Extension: Where to Sign
When users should sign in an embedded wallet versus a MetaMask-style browser extension.
Best Embedded Wallet Providers 2026: Compared
Pricing, chains, and key models for Cavos, Privy, Dynamic, Turnkey, Magic, and Web3Auth.
Embedded Wallet Cost (2026): Privy, Dynamic
How much embedded wallets cost in 2026: per-MAU, per-wallet, and per-signature list prices at 10k to 1M users.
Privy vs Turnkey (2026): SDK vs Infrastructure
Finished auth SDK versus enclave signing infrastructure, with Dfns.
Privy vs Dynamic (2026): Provision vs Connect
Provision versus connect: TEE user wallets versus TSS-MPC, plus a short Turnkey note.
Alchemy vs Privy (2026): APIs vs Signer
Wallet APIs versus a signer. Account Kit is deprecated; Alchemy recommends Privy.
How to Add an Embedded Stellar Wallet to Your App
Install @cavos/kit, sign in with Google, Apple, or email, and send a sponsored Stellar payment.
How to Send Gasless Starknet Transactions
Install @cavos/kit, sign in with Google, Apple, or email, and send a paymaster-sponsored Starknet transaction.
Embedded Wallet Payments (2026): USDC Guide
Accept USDC with an embedded wallet on Stellar, Solana, or Starknet, with Gas Sponsorship in Any Token.
Compare embedded wallet providers
Cavos vs hosted wallets and extensions across custody, chains, and recovery.
When an embedded wallet makes you a custodian
The control test under MiCA, FinCEN, California, and related regimes.
Privy wallet alternatives
When teams look past Privy the embedded crypto wallet, and which architecture actually fits.
Turnkey wallet alternatives
Finished embedded-wallet SDKs versus Turnkey’s enclave signing infrastructure.
Dynamic wallet alternatives
Provision-only wallets versus Dynamic’s multi-wallet connection layer.
Magic wallet alternatives
Device-native keys versus Magic’s email-first delegated HSM wallets.
Para wallet alternatives
Device-native keys versus Para’s 2-of-2 MPC wallet at getpara.com.
Web3Auth wallet alternatives
Device-native keys versus Web3Auth / MetaMask Embedded Wallets MPC shares.
Dfns wallet alternatives
Finished embedded-wallet SDKs versus Dfns MPC/TSS wallet infrastructure.
Embedded Starknet wallet
Audited OpenZeppelin AccountUpgradeable v3.0.0 with a native stark key.
Embedded Solana wallet
Native Ed25519 system account with a relayer as fee payer.
Embedded Stellar wallet
Classic G… account, one Ed25519 key from the MasterDEK, sponsored reserves and fees.
Product updates
Release notes and security write-ups for @cavos/kit, including our open-source enclave and Kit 0.5.0 and Sign in with Telegram (Kit 0.5.2).
- Nov 5, 2026
Sign in with Telegram (Kit 0.5.2)
@cavos/kit 0.5.2 adds Telegram as an optional hosted login, verified inside the attested enclave. Plus enclave release v2, accepted through signed releases.
- Oct 28, 2026
The Cavos Enclave Is Open Source (Kit 0.5.0)
The Cavos recovery enclave is now open source. Read the code that restores wallets. Plus @cavos/kit 0.5.0: GitHub sign-in and signed enclave releases.
- Mar 30, 2025
v1.1.9: Cartridge Slot and Security Hardening
Cavos v1.1.9 adds native Cartridge Slot support, a built-in relayer, and cavos-account hardening: offset-injection protection and a self-revocation guard.