Privy · Stripe-owned embedded self-custodial wallet (overview)

Wiki route

This entry sits under AI agent payment protocols overview · seven-protocol landscape. Read it against Embedded-wallet network effects · the integrator moat rather than the wallet itself for peer / contrast context and payments index for the broader system / regulatory boundary.

Key facts

• 2021 founded in New York · founders Henri Stern + Asta Li ^•
• 2025-06 acquired by Stripe (estimated $300-500M) ^•
• 75M accounts at time of acquisition · reached 110M+ wallets by 2026-Q1 ^•
• 1,000+ developer team integrated ^•
• Self-custodial model: MPC + TEE sharding · the private key never exists at any single Privy point ^•
• User onboarding ~10 seconds vs MetaMask 5-10 minutes ^•
• Pre-acquisition core customers: OpenSea / Hyperliquid / Farcaster / Friend.tech / Toku / Zora ^•
• Announced the Multichain balances API at 2026 Sessions ^•

Mechanism / How it works

When a user logs in with email or Google, the Privy SDK (roughly 30 lines of code) runs MPC sharding key generation in the frontend. One shard is stored on the user’s device (Passkey / WebAuthn / Secure Enclave based), and one shard is stored in Privy’s TEE (Trusted Execution Environment · AWS Nitro Enclaves or equivalent). At signing time the two shards cooperate to generate a valid signature, but Privy alone cannot sign, and the user alone cannot sign either: this realizes the compromise of “self-custodial yet management-free” (for the same model see ERC-4337 embedded-wallet adoption). With the Multichain balances API, one API call can retrieve multi-chain balances across Ethereum, Solana, Tempo, Polygon, and other networks, eliminating the need for developers to implement multi-chain aggregation individually; the underlying layer depends on chain-abstraction patterns. The whole experience is fully Web2: the user never sees a seed phrase, never installs MetaMask, and never has to switch networks. This is the core reason Privy reached a 110M-wallet scale.

Origin & evolution

Privy was founded in New York in 2021 by Stern and Li, both formerly at Protocol Labs. During 2022-2024, it integrated deeply with dapps such as OpenSea, Hyperliquid, Farcaster, and Friend.tech, accumulating 75M accounts. In 2024-Q4, Stripe launched its chained acquisition strategy around stablecoins, Tempo, and Bridge, making a wallet layer necessary; for the full strategic picture, see Stripe five-layer Trojan horse. In 2025-06, Stripe completed the Privy acquisition at an estimated $300-500M, below Bridge’s $1.1B valuation because Privy was still in a high-growth phase. In 2025 H2, Privy continued operating under an independent brand while beginning to serve internal demand from Stripe Connect, Tempo, and Bridge. On 2026-05-07, AWS Bedrock AgentCore Payments embedded Privy and Coinbase CDP in parallel as default wallet providers, establishing Privy’s position in AI agent economy infrastructure; for the legacy path, see global institutional custody five pillars.

Related

• Wiki Index
• Privy x AWS AgentCore default wallet
• CEX disintermediation through embedded wallets
• x402 HTTP payment protocol

Sources

• Privy docs — https://docs.privy.io/