Onchain Monitor

Monitor blockchain addresses and contracts with Alchemy, Etherscan, and CoinGecko APIs.

Updated Jul 16, 2026
One-click install
npx skills add https://github.com/enuno/noesis-aeon --skill onchain-monitor
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Onchain Monitor
Source: https://github.com/enuno/noesis-aeon/tree/main/skills/onchain-monitor
Command: npx skills add https://github.com/enuno/noesis-aeon --skill onchain-monitor

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ALCHEMY_API_KEY, COINGECKO_API_KEY, ETHERSCAN_API_KEY, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill addresses the challenge of manually monitoring blockchain addresses and contracts for significant activity, offering an automated solution to save time and alert you to important events.

Core Features & Use Cases

  • Blockchain Activity Monitoring: Keep track of addresses and contracts for notable transactions, swaps, and other events.
  • Customizable Alerts: Set up thresholds for monetary value, and receive notifications when transactions exceed these thresholds.
  • Integration with APIs: Leverages Alchemy, Etherscan, and CoinGecko APIs for real-time data fetching and price lookup.
  • Use Case: Ideal for crypto enthusiasts or professionals who need to stay informed about the activity of specific addresses or contracts in the blockchain space.

Quick Start

Use the Onchain Monitor skill to monitor the Ethereum address '0x1234...abcd' for any notable activity.

Frequently Asked Questions about Onchain Monitor

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I monitor blockchain addresses and contracts for significant activity?

To monitor blockchain addresses and contracts for significant activity, you can use an automated tool that tracks transactions and swaps, fetching real-time data via Alchemy and Etherscan APIs to alert you when predefined monetary thresholds are exceeded.

Do I need API keys to set up crypto transaction alerts?

Yes, setting up crypto transaction alerts requires API keys for Alchemy, Etherscan, and CoinGecko. These dependencies are necessary to fetch on-chain data and perform real-time price lookups to evaluate monetary value thresholds.

Can I customize crypto analytics alerts based on monetary value?

You can customize crypto analytics alerts by configuring predefined monetary thresholds. The monitoring system checks transactions against these custom watch configurations and triggers notifications when specific monetary values are exceeded.

What is the best way to track Ethereum address activity without manual checks?

The best way to track Ethereum address activity without manual checks is using an automated monitoring solution. It continuously fetches data via Alchemy and Etherscan APIs, alerting you only when notable transactions or contract events meet your configured value thresholds.

Does this blockchain activity monitoring tool use CoinGecko for price data?

Yes, the blockchain activity monitoring tool uses the CoinGecko API for price lookup. This integration allows the system to calculate the real-time monetary value of transactions and determine whether they exceed your predefined alert thresholds.

What are the limitations of using API-based crypto analytics for transaction alerts?

API-based crypto analytics for transaction alerts rely on external data fetching from Alchemy, Etherscan, and CoinGecko, meaning monitoring accuracy and alert speed depend on the rate limits, latency, and uptime constraints of these third-party API providers.