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Lamportlens

Lamportlens is a Python command-line tool that analyzes captured Solana account snapshots in JSONL format. It identifies accounts below a rent-exempt minimum and reports lamport totals, account-size groupings and owner-level distribution; the repository also includes an independent TypeScript verifier.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Lamportlens — 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 have a JSONL export of Solana accounts and need an offline, whole-snapshot review of rent-exempt status and balance distribution.

Who it is for

  • Solana developers examining captured account snapshots
  • Teams assessing rent-exemption status and the distribution of account balances

Documented uses

  • Find accounts below a selected rent-exempt minimum.
  • Summarize locked lamports, balances observed, underfunded deficits and amounts described as reclaimable on closure.
  • Group account balances into data-length bands and rank owners by lamports held.
  • Cross-check analysis rules using the independent TypeScript verifier.
Before you choose

Requirements & limits

The repository is public and identifies the project as MIT-licensed. The Python core is documented as requiring only the standard library; the TypeScript verifier has a development dependency.

  • Input is a captured JSONL export; the described workflow is not a live account query.
  • Rent-exempt calculations use a chosen lamports-per-byte rate.
  • Executable program accounts are classified as excluded from the storage bands and locked total.
  • Malformed lines are reported with line numbers rather than aborting the full snapshot.
  • The TypeScript verifier is a separate implementation, not the Python CLI.

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

Run the Python audit on a sample snapshot

Generate a rent-exemption and balance report from the repository’s sample JSONL snapshot.

Before you start

  • Python
  • The Lamportlens repository, including its src directory and samples/snapshot.jsonl file

Steps

  1. Set PYTHONPATH to src.

  2. Run python -m lamportlens audit samples/snapshot.jsonl.

Expected outcome

A text report summarizes account statuses, lamport totals, data-size bands, owner balances, parse errors and findings.

Guide limitations

  • This recipe analyzes the supplied sample snapshot; it does not retrieve live Solana account data.
  • The repository also describes installing a console script with pip, but that is not required for this sample command.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
13 October 2026
Original website title
ssintaramadaglri/LamportLens · Official homepage title · retained in its source language
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