How Para Works

Para provides non-custodial embedded wallet infrastructure: secure key management, cross-app portability, and policy-based access control

Para makes it easy to add secure, non-custodial wallets to bring onchain capabilities to your applications and users. Users create wallets with a familiar login experience (email, social, or passkey) and get a wallet that works across apps, chains, and platforms without ever managing private keys or seed phrases.

Para wallets are non-custodial. The private key is never assembled in one place. Neither Para nor the integrating application can access users’ full private keys. See Security & Trust Model for details.

Custody Model and Regulatory Classification

Para uses a 2-of-2 Multi-Party Computation (MPC) architecture where the private key is split between the user’s device and Para’s hardware security modules. Because the full key is never held by any single party:

• Classification: Para wallets are self-custodial / non-custodial. Your application does not take custody of user funds.
• Faster global expansion: Non-custodial architecture simplifies regulatory requirements, enabling faster launches in new markets without the licensing overhead associated with custodial wallet models.
• Audit posture: SOC 2 Type II compliant. Para regularly undergoes system-wide audits and penetration tests. Contact the Para team at [e-mail] to request audit details.
• Data handling: All key material is encrypted at rest and in transit. User shares never leave the user’s device unencrypted.

For detailed security mechanisms and audit information, see Security & Trust Model.

How the System Fits Together

Para’s architecture has four pillars that work together to provide secure, portable, and controllable wallets:

Key Management & Security

Permissions & Access Control

Wallet Recovery

Universal Wallets

Integration Patterns

Para supports multiple integration approaches depending on the product’s needs:

Drop-in Modal

Custom UI

Server-side

Para also works with ERC-4337 (Account Abstraction) out of the box, making it easy to combine MPC-based key management with smart account capabilities like gas sponsorship, batched transactions, and custom validation logic.

Supported Platforms and Chains

Frameworks

Para provides SDKs for all major platforms:

• Web: React, Next.js, Vue, Svelte, vanilla JavaScript
• Mobile: React Native, Flutter, Swift
• Server: Node.js and REST API
• CLI: Command-line SDK for scripting and automation

See the quickstart guides for framework-specific setup instructions.

Blockchain Networks

Para is designed to be blockchain-agnostic with native support for:

Network	Coverage
EVM chains	Ethereum, Polygon, Arbitrum, Optimism, Base, and all EVM-compatible networks
Solana	Native support
Stellar	Native support
Cosmos ecosystem	Native support via CosmJS

Developers can integrate with popular libraries like ethers.js, viem, wagmi, and CosmJS. For the full list of supported chains, see the chain support documentation.

Architecture FAQs

Can Para integrate with Account Abstraction (AA) systems?

Yes. Para is designed to work with ERC-4337 (Account Abstraction) out of the box. This allows developers to leverage Para’s MPC security while taking advantage of AA capabilities like gas sponsorship, batched transactions, and custom validation logic.

What SDKs does Para offer for integration?

Para offers SDKs for React, Next.js, Vue, Svelte, and vanilla JavaScript on the web; React Native, Flutter, and Swift for mobile; Node.js and REST API for server-side; and a CLI SDK for scripting and automation.

What blockchain networks does Para support?

Para is blockchain-agnostic with native support for all EVM-compatible chains, Solana, Stellar, and the Cosmos ecosystem. Developers can integrate using popular libraries like ethers.js, viem, wagmi, CosmJS, and the Stellar SDK. For the full list, see the chain support documentation.