A high-precision, self-hostable blockchain explorer scaffold for Substrate-based networks like Polkadot.
Subscan Essentials is a backend scaffold and API server for building high-precision blockchain explorers for Substrate-based networks like Polkadot and Kusama. It solves the problem of needing a reliable, extensible foundation to index, query, and serve on-chain data, eliminating the need to build an explorer from scratch.
Teams and developers building or operating blockchain explorers for Substrate parachains, solo chains, or testnets who need a production-proven, self-hostable backend.
Developers choose Subscan Essentials because it's the open-source engine powering the widely-used Subscan explorer, offering battle-tested Substrate integration, a flexible plugin architecture, and multi-chain support out of the box.
Polkadot Substrate Explorer Subscan
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Powers the widely-used subscan.io service, ensuring battle-tested reliability for indexing Substrate blockchains, including blocks, extrinsics, and EVM data.
Offers a custom plugin system with auto-generated templates via the gen tool, allowing teams to easily add unique data features and parsers.
Supports Docker Compose and Helm Chart for Kubernetes, along with multiple database backends (MySQL/PostgreSQL), simplifying production scaling and management.
Includes built-in HTTP API docs for developer integration, enabling seamless connection to custom frontends or analytics dashboards.
Requires manual configuration and running of separate processes (subscribe, worker, API server) with dependencies on Redis and a relational database, increasing initial deployment time.
The React UI is in a different repository, adding an extra layer of setup and maintenance compared to integrated explorer solutions.
Custom type registration and plugin development assume familiarity with Substrate's SCALE codec and Go, which can hinder rapid adjustments for less experienced teams.