Fedimint Sdk

A Robust, privacy-focused, and WebAssembly-powered fedimint client for the browser.

Docs Site: sdk.fedimint.org

Packages 📦

Public packages

Package	Version	Description
@fedimint/core		Core Fedimint client for JavaScript runtimes (Wasm bindings, high-level API, testing utilities).
@fedimint/react		React hooks and context for working with Fedimint clients in React applications.
@fedimint/transport-web		Web worker transport that hosts the Wasm client and communicates with @fedimint/core.
create-fedimint-app		CLI tool for scaffolding a Fedimint starter app with Vite, React, and TypeScript.

Internal & legacy

Package	Version	Description
@fedimint/core-web (deprecated)		Legacy shim that re-exports @fedimint/core; new projects should depend on @fedimint/core directly.
@fedimint/fedimint-client-wasm-web		Not intended for direct use. Wasm-pack build targeting web environments; consumed by @fedimint/transport-web.
@fedimint/fedimint-client-wasm-bundler		Not intended for direct use. Wasm-pack build targeting bundler environments; used when bundling custom transports or hosts.
@fedimint/types		Shared TypeScript interfaces for transports and other Fedimint client implementations.
@fedimint/integration-tests (private)	—	Internal Vitest harness for exercising the SDK against embedded nodes.

Structure 🛠️

This monorepo is structured as a pnpm workspace rooted at js/, alongside the Rust crates in rust/. There are some helpful scripts in js/package.json to help manage the workspace.

fedimint-sdk
├── js
│   ├── docs
│   ├── examples
│   │   ├── vite-core
│   │   ├── bare-js
│   │   ├── next-js
│   │   └── webpack-app
│   ├── shared
│   │   ├── core
│   │   └── types
│   ├── web
│   │   ├── core-web
│   │   ├── integration-tests
│   │   ├── react
│   │   ├── transport-web
│   │   ├── wasm-bundler
│   │   └── wasm-web
│   ├── react-native
│   │   ├── react-native
│   │   └── react-native-bindings
│   └── tools
│       └── create-fedimint-app
├── rust
│   └── fedimint-client-uniffi
├── nix
└── scripts

Examples

• vite-core: React + Vite starter focused on @fedimint/core primitives.
• next-js: Example configuration for a Next.js application.
• webpack-app: Demonstrates configuring webpack for Fedimint applications.
• bare-js: Minimal usage of @fedimint/core without a bundler.

Developer Calls

• SDK Developer Calls: We have developer calls every Wednesday at 4PM UTC to review PRs and discuss current development priorities. As a new developer, this is a great place to find good first issues and mentorship from the core team on how to get started contributing.

Credit

Used the wagmi library as a reference for the repo's structure.

Note

In October 2025, this repository was renamed from "Fedimint Web Sdk" to "Fedimint Sdk" as the react-native packages were added. See the discussion topic for details.