How Miden Built A Custom Ecosystem Wallet in 10 Days With Para

Miden, a purpose-built privacy network, meets universal wallet infrastructure

At Para, we've built our SDK to work across EVM chains, Solana, Cosmos, and more. But when the Miden team approached us about integrating their network, we faced something genuinely different.

Miden is a purpose-built network designed from scratch for a single, critical use case: privacy. That meant a completely custom STARK-based virtual machine with its own execution model and its own signing requirements.

The integration wrapped smoothly in roughly 10 days. The integration kicked off on November 11, 2025 and wrapped on November 26, 2025.

Here's what it says about building truly universal wallet infrastructure.

What Makes Miden Different

Miden represents a fundamentally new approach to blockchain architecture. While most chains and rollups optimize around EVM compatibility, Miden prioritizes ZK-friendliness over EVM compatibility, offering features and benefits unavailable on Ethereum, and most notably, programmable privacy at the protocol level.

For fintech builders, this is significant. Compliant private transactions, confidential payroll, shielded treasury management aren't afterthoughts bolted onto an existing chain; they're the reason Miden exists.

The technical differences run deep:

Custom VM: Miden runs on its own STARK-based virtual machine with custom instruction set architecture, purpose-built for zero-knowledge computation
Client-side proving: Users don't ask the network to execute code, they prove that their computation is correct. The client runs the transaction logic, generates a STARK proof, and sends it for verification to the network.
Parallel execution: Multiple players can execute their own logic and generate their own proofs simultaneously, with extremely high parallelism, without competing for on-chain resources.

Miden is a ground-up reimagining of how blockchain computation works, optimized for the privacy guarantees that serious financial applications require.

Zoro Swap is an AMM built for the Miden blockchain that uses Para

The Challenge: Signing for a Custom Chain

Most wallet SDKs are built around EVM primitives. They assume you're signing Ethereum-style transactions with familiar data structures and encoding schemes.

Miden doesn't work that way. And that's the point: its custom architecture is precisely what enables its privacy features.

Integrating Miden meant supporting an entirely different signing paradigm while maintaining the seamless UX that Para users expect. Your users shouldn't need to know or care that they're interacting with a custom ZK VM built for privacy-preserving computation.

Now Live

The miden-para SDK is now live, providing:

Full integration with Para's embedded wallet infrastructure
Support for both public and private Miden accounts
React hooks for easy frontend integration (use-miden-para-react)
A Vite scaffolding tool (create-miden-para-react) to get started in minutes

The integration leverages the Miden SDK alongside Para's web SDK, giving developers the best of both worlds: Miden's privacy-preserving ZK architecture with Para's battle-tested authentication and wallet management.

yarn add miden-para @demox-labs/miden-sdk @getpara/web-sdk

That's it. You're ready to build on Miden with Para wallets.

Qash is a private neobank for global teams to run payroll, earn yield, and spend across chains and currencies, running on Miden and powered by Para

Why This Matters

For developers: You can now build on one of the most innovative ZK networks without forcing users through clunky wallet setup. Your Miden application can onboard users just like a Web2 app. Check out Qash Finance as an example: a neobank for private payroll for businesses operating onchain.

For fintechs building custom infrastructure: If you're designing a purpose-built chain or network for a specific use case, whether that's privacy, compliance, settlement, or something else entirely, Para can support it. Miden proves that our architecture isn't limited to standard chains. We can meet you where your technology is, not where the industry defaults.

For the Miden ecosystem: Para brings proven wallet infrastructure that's already powering 10M+ wallets and hundreds of apps like ENS and more. Miden builders get that same reliability from day one.

Building this integration in under 10 days taught us a few things:

Abstraction is everything. Para's architecture separates authentication, key management, and transaction signing in ways that made adapting to Miden's requirements straightforward.
Good partners matter. The Miden team's documentation and SDK made the integration dramatically smoother. When both teams understand the problem deeply, solutions come fast.
The future is heterogeneous. Standard execution environments won't be the only ones that matter. Fintechs and enterprises will increasingly build custom infrastructure for specific regulatory, privacy, or performance requirements. Building for that future means building flexible infrastructure now.

Get Started

Ready to build on Miden with Para?

SDK: github.com/0xMiden/miden-para
React integration: Check the packages/use-miden-para-react directory
Scaffolding: Use create-miden-para-react to spin up a new project

Miden is building privacy infrastructure for the future of finance. Para is building the wallet infrastructure to make it accessible. Together, we're proving that the best user experiences don't require compromising on the most innovative technology.

Building a custom chain or purpose-built network? Reach out, we'd love to talk.