
What if JavaScript was the universal language of the blockchain?

What if you could write a smart contract, orchestrate it across Ethereum and Cosmos—and never leave TypeScript?

Hyperweb and [Union](https://union.build) are making this vision real.

This collaboration unites two core forces shaping the next era of Web3: the developer-first ethos of JavaScript and the protocol-level ambitions of IBC—now supercharged with ZK. By joining the Union Fellow program, Hyperweb brings its TypeScript-native stack into direct collaboration with Union's state-of-the-art zk‑IBC interop layer.

Together, they make the dream of seamless cross-chain application development in one language a reality.

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## The Vision: TypeScript as the Web of Chains

The original web was built on JavaScript because it was ubiquitous, flexible, and accessible. Hyperweb extends this model to the blockchain, offering a full-stack TypeScript experience—from smart contract logic to UI, tooling, and dev ops.

Union, meanwhile, is redefining interoperability. With its Groth16-powered ZK messaging bus and broad ecosystem support, it’s more than just a bridge—it’s a programmable transport layer for intent-based, trust-minimized application flows.

It’s no longer just about cross-chain communication—it’s about programmable trust at scale.

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## Use Case Spotlights

Build a Hyperweb smart contract in TypeScript and connect natively to L1s and L2s via Union's zk‑IBC. No more polyglot dev—just trust-minimized interop in one familiar language.

Onboard TS developers with ease: build, test, and deploy apps locally with Hyperweb CLI, while Union handles secure orchestration under the hood.

Imagine composing protocols like AAVE, Mantra, and real-world assets into a single experience—all in TS. Hyperweb’s framework becomes the connective tissue, while Union provides the cryptographic certainty.

Developers can orchestrate sub-second, multi-chain scenarios with ZK-backed guarantees—fully programmable in TypeScript.

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## Key Benefits

This integration delivers end-to-end consistency: full-chain development without context switching. Developers gain access to:

* Provable ZK security (Groth16-backed)
* Cross-chain reach via Union’s integrations
* A unified Localnet → Testnet → Mainnet workflow
* The ability to add new supported chains (e.g., Babylon, Scroll, Secret) with minimal effort

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## Building Blocks

### Hyperweb: JavaScript Infrastructure for Blockchain

* TypeScript-native smart contracts
* Telescope-powered codegen
* InterchainJS: deployment, signing, bundling
* Local-first testing and modular tooling

### Union: Zero-Knowledge Interoperability Engine

* zk‑IBC with Groth16 proofs
* Support for Cosmos, Ethereum, and more
* High-speed, verifiable messaging layer
* Integrated with Babylon, Aori, Xion, Base, Scroll

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## Partnership in Action

Hyperweb’s inclusion in the Union Fellow cohort marks the beginning of a deep technical collaboration. Together, we’re building a TypeScript-first developer experience that integrates seamlessly with Union’s zk‑IBC infrastructure. Expect full-stack demos showcasing smart contracts written in TypeScript and executed across chains with verifiable ZK guarantees.

Next on the roadmap: integrated testnet flows, updated Telescope and InterchainJS tooling with native Union support, and the first wave of mainnet-ready, cross-chain TypeScript applications.

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## What This Means for the Ecosystem

This partnership represents a turning point: bringing together the accessibility of TypeScript with the rigor of zero-knowledge, cross-chain infrastructure. Developers can now build chain-agnostic applications without needing to master multiple environments, while inheriting the security of auditable, ZK-backed interop. Hyperweb and Union together unlock a new era of composability—scalable, secure, and entirely programmable in TypeScript.

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## Looking Ahead

We’re on the verge of a new developer paradigm—where full-stack TypeScript applications gain seamless access to ZK-secured, cross-chain infrastructure. The path forward includes unified tooling that merges Hyperweb’s developer CLI with Union’s chain orchestration, along with SDKs, tutorials, and live demos that bring TS smart contracts into multi-chain reality. As the ecosystem evolves, expect this partnership to grow through community-led expansion, making composable Web3 development accessible to every JavaScript developer.

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## Get Started Today

Start building with the tools powering this new frontier:

* [Explore Hyperweb’s TypeScript stack](https://docs.hyperweb.io)
* [Dive into Union’s zk‑IBC infrastructure](https://union.build/docs)
* Follow [**Hyperweb**](https://x.com/Hyperweb_) and [**Union**](https://x.com/union_build) for tutorials, code drops, and next-level tooling.

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Together, Hyperweb and Union represent the next frontier of full-stack Web3—where TypeScript becomes the language of programmable trust. Stay tuned for code drops, demos, and the new shape of multi-chain development.


Hyperweb joins the Union Fellow program to fuse TypeScript-first smart contract development with Union's zk-powered cross-chain infrastructure. Developers can now build full-stack TypeScript apps with secure, real-time messaging across EVM, Cosmos, and beyond—without leaving JavaScript.

Hyperweb x Union: Bridging TypeScript with zk‑Powered Cross‑Chain Interop