xOneTS: the protocol, in a familiar language

A TypeScript execution client on Bun, with modular packages, an EthereumJS EVM adapter, and SQLite-backed state.

xBy xOne teamNov 11, 2026 / 1 min read

xOneTS is the TypeScript client in the xOne family, built for developers who think in TypeScript. Its focus is modular TS packages.

What it is

Runtime: Bun / TypeScript
Execution: EthereumJS EVM adapter
Storage: SQLite
License: Apache-2.0

Why TypeScript

A large share of Ethereum tooling is written in TypeScript. A client in the same language lets those developers read, debug, and extend the node with tools they already know.

How to build it

The repository is currently private. You need repository access and Bun; check the current repository toolchain requirements before building.

git clone https://github.com/XDCIndia/xOneTS.git
cd xOneTS
bun install --frozen-lockfile
bun bin/build.ts dist/xonets

The build script is bin/build.ts.

Source

github.com/XDCIndia/xOneTS

A NOTE ON READINESS

This article describes the source and evidence at its review date. Check the linked repository for current implementation and qualification status.

Explore the engineering evidence

xWritten by xOne team← All field notes

Build your way.

Choose an implementation to see its source-based build recipe.

ClientGoal

Use the pinned Rust toolchain and platform build prerequisites in the repository.

git clone https://github.com/XDCIndia/xOneRS.git
cd xOneRS
cargo build --locked --release -p xone
./target/release/xone --version

This recipe builds the client; it does not start a node. Mainnet operation is not yet qualified.

Open source guide

What it is

Why TypeScript

How to build it

Source

Continue the investigation.

The conformance and replay gate

Four clients, one protocol: what each xOne client is for

How xOne releases are made, and how to read the version stamp