Fabric Vault

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Getting Started ​

Fabric Vault is a browser extension wallet for Hyperledger Fabric that lets dApps request transaction signing without ever touching private keys.

Installation ​

Install the extension from the Chrome Web Store or Firefox Add-ons, or load the unpacked build from packages/extension/build/chrome-mv3-dev during development.

SDK ​

Install the SDK in your dApp:

bash
npm install @fabric-vault/sdk

Connect to the wallet in three lines:

ts
import { waitForProvider, FabricVaultClient } from "@fabric-vault/sdk"

const { info, provider } = await waitForProvider()
const client = new FabricVaultClient(provider, info)
const identities = await client.connect()

Running the Gateway ​

The JSON-RPC gateway bridges your dApp to a live Fabric network.

Option 1 — Self-host (recommended for local development and production):

bash
npx @fabric-vault/gateway

Starts on port 7545 by default. Override with PORT if needed. Peer and identity details are supplied per-request by the extension — no upfront configuration required.

Option 2 — Public hosted gateway:

A gateway instance is available at wss://hyperledger-fabric-json-rpc-gateway.onrender.com.

This is hosted on a Render free plan and subject to cold starts and rate limits. Use it for quick experiments only — self-host for anything beyond that.