Understand the project
Practical overview
When it fits
Use it when a project needs local Ethereum indexing, address-history queries, command-line analytics, or a data layer for an explorer. The server mode is suited to a single-user environment.
Who it is for
- Ethereum data analysts and data scientists
- Developers building blockchain explorers or analytics tools
- Operators who need a self-hosted indexed data layer
- Users producing token and ETH accounting exports
Documented uses
- Build or obtain an index of Ethereum address appearances.
- Search address transaction histories quickly.
- Extract smart-contract logs and inspect ERC-20 holdings.
- Produce reconciled statements and accounting exports for ETH and tokens.
- Expose indexed tools through a simple local API.
Before you choose
Requirements & limits
The repository is public and licensed under GPL-3.0. The documented workflow is local and self-hosted; the evidence does not provide pricing or account requirements.
- The Unchained Index can be built from an EVM-compatible tracing or archive node or obtained as a snapshot.
- A valid Ethereum RPC provider may need to be configured in trueblocks.toml.
- The chifra server mode is explicitly intended for single-user environments rather than multi-user cloud serving.
- The project offers both command-line access and a simple API mode that mirrors the command-line tools.
- An optional binary cache is documented for speeding up RPC queries.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Evidence and transparency
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 2 October 2026
- Original website title
- TrueBlocks/trueblocks-core · Official homepage title · retained in its source language