Alchemy Account Kit (v4), including its embedded wallets, signer support, and key management, is deprecated. Alchemy now ships Wallet APIs as a signer-agnostic transaction layer and recommends Privy or another provider for login and keys.
This is not a like-for-like embedded-wallet swap. Cavos is a finished embedded wallet SDK: auth, a device-native account, recovery, and Gas Sponsorship in Any Token. Alchemy Wallet APIs sponsor gas, batch calls, and upgrade an existing EOA to a smart wallet with EIP-7702; they do not replace the signer. Alchemy documents Privy as the recommended signer, alongside Turnkey, Openfort, and any viem-compatible signer.
For the category itself — custody, key models, and what the SDK actually does — start with how embedded wallets work. The named-vendor table is embedded wallet providers. Platform parts and pricing models are in wallet-as-a-service. The method-level surface is the embedded wallet API. The React install is how to add an embedded wallet.
| Capability | Cavos | Alchemy |
|---|---|---|
| Product layer | Complete embedded wallet SDK: auth, wallet, recovery, Gas Sponsorship in Any Token. | Wallet APIs are the transaction layer after your signer. Account Kit embedded wallets, signer, and key management are deprecated. |
| Signing authority | Self-custodial. A non-exportable device key is the signing authority; Cavos holds no key that can move user funds and uses no MPC shares. | Bring-your-own signer. Wallet APIs leave login and keys to Privy (recommended), Turnkey, Openfort, or a viem-compatible signer. |
| Chain coverage | One SDK with chain-native adapters. Starknet, Solana, and Stellar available today. | Many EVM networks plus Solana. Bundler, ERC-20 gas payments, and Bundler Sponsored Operations are documented for those EVM networks, not for Solana. |
| Account model | Audited OpenZeppelin account contract (AccountUpgradeable v3.0.0) on Starknet, native Ed25519 system account on Solana, classic G-account on Stellar. | EVM defaults to EIP-7702: the EOA delegates to Modular Account v2 without changing address. Signers that cannot sign EIP-7702 authorizations use non-7702 mode, which creates a separate smart wallet address. |
| Gas sponsorship | Gas Sponsorship in Any Token. Chain-specific: Starknet paymaster, Solana relayer as fee payer, Stellar sponsored reserves and fee bumps. | Gas sponsorship on EVM and Solana, ERC-20 gas payments, batching, session keys, and automatic fee bumps, as documented for Wallet APIs. |
| Recovery | Passkey restore on a new device and opt-in hardware-isolated social recovery, both non-custodial. | Not provided by Wallet APIs. Recovery belongs to the signer you bring, such as Privy or Turnkey. |
| Pricing | Free up to 1,000 wallets. Essential $59/mo. Complete $139/mo. | Free 30M compute units/mo. PAYG $0.525 per million CUs. Gas Manager: 8% admin fee on PAYG; free on testnets. |
No. Alchemy documents Account Kit (v4), including embedded wallets, signer support, and key management, as deprecated. New sign-ups for the Alchemy Signer, Account Kit, and Embedded Wallets have been turned off since 18 June 2026. Wallet APIs are the supported successor.
No. Alchemy Wallet APIs are a transaction layer: gas sponsorship, batching, and EIP-7702. Alchemy recommends Privy or another provider for signer support. Cavos is a finished embedded wallet SDK with login, a device-native account, recovery, and Gas Sponsorship in Any Token.
Cavos ships Starknet, Solana, and Stellar. Alchemy Wallet APIs document gas sponsorship on many EVM networks and on Solana. Bundler, ERC-20 gas payments, and Bundler Sponsored Operations are documented for those EVM networks, not for Solana.
Cavos is free up to 1,000 wallets, then Essential at $59/mo and Complete at $139/mo. Alchemy prices infrastructure in compute units: the free tier includes 30 million CUs per month, PAYG is $0.525 per million CUs, and Gas Manager lists an 8% admin fee on PAYG.
Start with the quickstart and reach a sponsored transaction on your target chain.
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