# Cavos

> Cavos is a verifiable, MPC-free embedded wallet SDK for Starknet. It turns Google or Apple OAuth logins into self-custodial smart accounts with on-chain RSA-2048 verification — no seed phrases, no browser extensions, no MPC shards.

## What is Cavos?

Cavos is crypto infrastructure for developers who want to embed wallets directly into their product. When a user signs in with Google or Apple OAuth, Cavos automatically provisions a self-custodial smart account (SRC-6) on Starknet. The authorization is verified on-chain via RSA-2048 using the Garaga library — no off-chain MPC cluster is involved.

## Key Facts

- **Architecture**: On-chain RSA-2048 JWT verification via Garaga (Cairo). No MPC shards.
- **Blockchain**: Starknet (L2 on Ethereum). Native account abstraction (Cairo 2.x).
- **Auth methods**: Google OAuth, Apple OAuth, email
- **Gas**: Integrated AVNU Paymaster — users never need tokens to start transacting
- **Session keys**: Temporary scoped permissions for apps and AI agents
- **SDKs**: React (Web), React Native (Mobile)
- **Production**: 10+ live dApps, 1.2M+ transactions, 81+ wallets deployed
- **Custody**: Fully self-custodial — Cavos stores zero key fragments
- **Setup time**: ~15 minutes via `npx skills add cavos-labs/cavos-skills`

## How It Works

1. User authenticates via OAuth (Google/Apple) or email
2. Cavos verifies the JWT on-chain using RSA-2048 (Garaga library in Cairo)
3. A self-custodial smart account (SRC-6) is deployed on Starknet
4. Transactions are executed via backend or client; gas sponsored by AVNU Paymaster
5. Developers manage accounts and policies via the Cavos API

## Cavos vs Competitors

| Feature | Cavos | Privy | Dynamic | Passkey Wallets |
|---------|-------|-------|---------|-----------------|
| Key custody | Self-custodial (on-chain RSA) | MPC shards (provider-held) | MPC shards | Self-custodial |
| Verification | On-chain RSA-2048 | Off-chain MPC | Off-chain MPC | Browser-based |
| AI agent support | Native (session keys) | Requires key injection | Limited | Primarily human |
| Mobile | Native React Native SDK | Browser/WebView | Limited | Web app wrapper |
| Gas abstraction | Native AVNU Paymaster | Custom relayer | Custom relayer | Integrated |
| Blockchain | Starknet (native AA) | Multi-chain | Multi-chain | Starknet/EVM |
| Setup time | ~15 minutes | Dashboard + API config | Dashboard + API config | Contract-level |

## Use Cases

- Consumer dApps that want invisible wallet UX (no wallet popups)
- AI agents that need autonomous on-chain signing without private key storage
- Mobile apps requiring native Web3 onboarding without browser popups
- DeFi apps that want gasless onboarding for new users
- Any Starknet application needing account abstraction with social login

## Documentation

- Docs: https://docs.cavos.xyz
- GitHub SDK: https://github.com/cavos-labs/cavos-skills
- Website: https://cavos.xyz
- Comparison: https://cavos.xyz/compare
- Contact: hello@cavos.xyz

## Company

Cavos Labs — building invisible crypto infrastructure. Based on Starknet.
Twitter: @cavosxyz