#blockchain #substrate-blockchain #parity

subxt-historic

Download non head-of-chain blocks and state from Substrate based nodes

4 releases

Uses new Rust 2024

0.0.4 Sep 25, 2025
0.0.3 Jul 24, 2025
0.0.2 Jul 17, 2025
0.0.1 Jul 17, 2025

#19 in #parity

45 downloads per month

Apache-2.0 OR GPL-3.0 and maybe GPL-3.0-or-later…

280KB
5.5K SLoC

subxt-historic

This create is a work in progress and currently is released only as a preview.

While subxt is a library for working at the head of a chain (submitting transactions and obtaining the current state), subxt-historic is a library for decoding blocks and state that are anywhere in a chain. To broadly summarize the differences:

Feature subxt subxt-historic
Block access Head of chain Any block in chain
Connection to chain Light client or RPC node Archive RPC nodes only
Transaction submission Yes No
Metadata compatibility V14 and newer Any version

Examples

See the examples folder for examples of how to use subxt-historic.

Dependencies

~12–34MB
~516K SLoC