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Subscan Essentials

Subscan Essentials is a Go-based scaffold for building blockchain explorers for Substrate-based networks. It indexes blocks, extrinsics, events, logs and EVM data, supports standard and custom module parsing, and provides an extensible plugin framework and HTTP API documentation.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Subscan Essentials — OpenViST project profile in Explorers & Analytics.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when you need a codebase to build and operate a Substrate-network explorer, and can provide the chain connection and supporting database and Redis services.

Who it is for

  • Developers building an explorer for a Substrate-based network.
  • Teams adapting explorer parsing, chain-specific data presentation or plugins.

Documented uses

  • Index blocks, extrinsics, events, logs and EVM data from a supported network.
  • Register custom types and parse standard or custom modules.
  • Extend explorer capabilities with custom plugins.
  • Pair the backend with the separately maintained React UI.
Before you choose

Requirements & limits

The repository is public and identifies its license as GPL-3.0.

  • The backend's listed prerequisites include Go 1.23+, Redis 3.0.4+, and MySQL 8.0+ or PostgreSQL 16+.
  • The README describes the React UI as a separate repository, with Node.js 18+ and npm or yarn prerequisites.
  • The documented configuration includes a chain WebSocket endpoint and database and Redis settings.
  • The README describes indexing EVM data as well as Substrate data, with UI flags for each.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Build the backend scaffold

Build the Subscan Essentials backend after preparing its documented development and data-service prerequisites.

Before you start

  • Linux or macOS and Git
  • Go 1.23 or later
  • Redis 3.0.4 or later
  • MySQL 8.0 or PostgreSQL 16

Steps

  1. Prepare the listed operating system, Git, Go, Redis and database prerequisites.

  2. From the repository, run ./build.sh build.

Expected outcome

The documented build command is run against the prepared backend prerequisites.

Guide limitations

  • The README does not specify a resulting binary location or provide further instructions for starting or configuring a chain-specific deployment.
Documentation 1 ↗
Source-based practical guide

Install and configure the separate React UI

Install the documented React interface and set its API host variable for connection to a backend.

Before you start

  • Node.js 18 or later
  • npm or yarn
  • The separate subscan-essentials-ui-react repository

Steps

  1. Clone https://github.com/subscan-explorer/subscan-essentials-ui-react.git and enter its directory.

  2. Install dependencies with the command below or yarn.

    Documented command
    npm install

  3. Set NEXT_PUBLIC_API_HOST to the API host address for deployment.

Expected outcome

The UI dependencies are installed and the documented API host setting is configured.

Guide limitations

  • These steps do not start the backend or establish that a particular API host is reachable.
Documentation 1 ↗
COMPARE OPTIONS

Compare options for Blockchain exploration

These projects document a common task and share a project role. This is a source-based comparison, not an execution benchmark or a guarantee of interchangeability.

ProjectDocumented purposePlatformAccess and requirements
Subscan EssentialsIndex blocks, extrinsics, events, logs and EVM data from a supported network.Server, WebThe repository is public and identifies its license as GPL-3.0.
Big Dipper 2.0Explore Cosmos proof-of-stake blockchain information through a block explorer.Web
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
10 October 2026
Original website title
subscan-explorer/subscan-essentials · Official homepage title · retained in its source language
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