---
title: "Query Blocks and Transactions - Air Market"
description: "Most Ethereum work starts with reading: what happened in this block, did this transaction go through, what does this address hold. This covers those reads in .NET with Nethereum. Reach for it wheneve…"
canonical: "https://airmarket.ai/app/query-blocks"
---

[Air Market](/) / [Developer Tools](/category/devtools) / Query Blocks and Transactions

Skill by [Nethereum](/@nethereum)

# Query Blocks and Transactions

Read what the chain already knows - blocks, transactions, balances

## What this does

Most Ethereum work starts with reading: what happened in this block, did this transaction go through, what does this address hold. This covers those reads in .NET with Nethereum. Reach for it whenever you need to pull existing on-chain state into your C# code.

### Top 3 things it does for you

- Get block data
- Look up a transaction or its receipt
- Check a balance or a nonce

## Information

**Query Blocks and Transactions at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Nethereum](/@nethereum) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 4 KB |
| Licence | MIT |
| Repository | [Nethereum/Nethereum](https://github.com/Nethereum/Nethereum/tree/1d68d2b036054226a11179eb1d1bda57f30a5365/plugins/nethereum-skills/skills/query-blocks) |
| GitHub stars | 2,256 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Query Blocks and Transactions and flagged nothing. AIR's verdict: **safe**.

**What Query Blocks and Transactions's check was run against**

|  |  |
| --- | --- |
| Commit | 1d68d2b036054226a11179eb1d1bda57f30a5365 |
| Content hash | e0af6b081e69ec22acd381d2f3b988b482f9e117a5838f084891d4a679bce242 |
| Files read | [Browse the files at this exact commit](https://github.com/Nethereum/Nethereum/blob/1d68d2b036054226a11179eb1d1bda57f30a5365/plugins/nethereum-skills/skills/query-blocks/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for Query Blocks and Transactions](/security/query-blocks)

## About Query Blocks and Transactions

This skill covers reading from Ethereum with Nethereum in .NET: blocks, transactions, receipts, balances and nonces.

It also covers the reads that sit just past the basics - decoding event logs from receipts, detecting contracts, and reading ERC20 token balances - for anyone querying on-chain state from C# or .NET.

## What's inside

- SKILL.md - instructions

## Questions

### Is Query Blocks and Transactions safe to install?

AIR scanned this exact version of Query Blocks and Transactions and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 1d68d2b03605, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/query-blocks.

### How do I install Query Blocks and Transactions?

Open https://airmarket.ai/app/query-blocks on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/Nethereum/Nethereum/tree/1d68d2b036054226a11179eb1d1bda57f30a5365/plugins/nethereum-skills/skills/query-blocks. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by Nethereum](/@nethereum)

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Canonical URL: <https://airmarket.ai/app/query-blocks>