SDK reference

0xkey publishes TypeScript packages under @0xkey-io/* and an official Go module at github.com/0xkey-io/sdk-go. Choose the SDK that matches your runtime and UI needs.

Choose your SDK

I am building…	Start here
React / Next.js Embedded Wallet	`@0xkey-io/react-wallet-kit`
Vue / Angular / Svelte / custom web UI	`@0xkey-io/core`
Node.js / Next.js backend	`@0xkey-io/sdk-server`
Go backend / automation	Go SDK

0xkey also ships chain adapters (@0xkey-io/viem, @0xkey-io/ethers, @0xkey-io/solana, …) for dApp integration.

Client-side SDKs (Phase 1)

	React Wallet Kit	`@0xkey-io/core`	React Native EWK
Authentication
Email OTP	Yes	Yes	Partial
Passkey	Yes	Yes	Partial
OAuth (Google, Apple, …)	Yes	Yes	Coming soon
SMS OTP	Partial	Partial	—
Embedded Wallets
Wallet creation	Yes	Yes	Partial
Signing	Yes	Yes	Partial
Import / Export	Yes	Yes	Partial
Arbitrary request stamping	Yes	Yes	Partial

React Wallet Kit is the fastest path for Embedded Wallets. @0xkey-io/core exposes the same primitives without UI for custom frameworks.

Server-side SDKs (Phase 1)

	TypeScript (`sdk-server`)	Go (`sdk-go`)
API key authentication	Yes	Yes
Wallet management	Yes	Yes
Policy management	Yes	Yes
OTP / enclave HPKE flows	Yes (via API + TS helpers)	Yes (`pkg/enclave_encrypt`)
Express / Next API proxy	Yes	—
Published package	npm	pkg.go.dev

Ruby, Python, and Rust server SDKs are Coming soon. Use HTTP + stamps until they ship.

Package matrix

Package / module	Role	Status
`@0xkey-io/react-wallet-kit`	React Embedded Wallet Kit	Supported
`@0xkey-io/core`	Framework-agnostic client	Supported
`@0xkey-io/sdk-server`	Node server client + proxies	Supported
`github.com/0xkey-io/sdk-go`	Go server client	Supported
`@0xkey-io/http`	Low-level HTTP client	Supported
`@0xkey-io/react-native-wallet-kit`	Mobile EWK	Partial
CLI	Key and activity tooling	Coming soon

Next steps

React Wallet Kit

Embedded Wallets in React / Next.js

@0xkey-io/core

Custom frontend frameworks

TypeScript server

API keys, proxies, OTP helpers

Go SDK

Backend automation and examples

GitHub — sdk-js

TypeScript examples

GitHub — sdk-go

Go examples

​Choose your SDK

​Client-side SDKs (Phase 1)

​Server-side SDKs (Phase 1)

​Package matrix

​Next steps