How to Build a Crypto Price Alert System Using CoinGecko and Python

The cryptocurrency market moves quickly, with new coins and emerging trends constantly in flux. In this article, we'll learn how to build a crypto price alert system

This tutorial will guide you through building a crypto price alert system that provides regular email updates on the latest trending coins and categories on CoinGecko, on-chain categories on GeckoTerminal, and sudden surges in trading volume. These insights can be valuable for informing your investment strategy or keeping you up to date with the latest market trends.

As usual, you’ll find a link to the GitHub repository at the end of the article. Let's dive in!

Pre-requisites

To obtain a CoinGecko API key, head over to the Developer’s Dashboard and click on +Add New Key in the top right corner. For detailed instructions on generating and setting up your key, refer to this guide.

For this project, we’ll be using the Categories List and Search Queries endpoints in the CoinGecko API. The Categories List endpoint is exclusively available only on the CoinGecko API Analyst tier and higher. As a free alternative, you can comment out the call to this endpoint and rely solely on the Search Queries data.

Step 1. Initializing the project

To start, we’ll initialize our project, install package requirements, and safely load our API credentials. First, we'll create an empty directory, which will serve as the root of our project.

Installing Dependencies

Let’s initialize a local Python environment. This will keep the global Python scope clean of any potential library versioning issues:

With the virtual environment now activated, copy the requirements below and paste them inside a new file called requirements.txt at the root of your project.

```

click==8.1.3

dataclasses-json==0.6.1

google-auth==2.16.0

google-auth-oauthlib==0.13.0

google-api-core==2.16.0

google-api-client==2.46.0

google-api-python-client==2.56.0

google-auth-httplib2==0.1.1

google-oauth2==5.3.0

google-oauth2-client==4.19.3

google-cloud-storage==2.5.0

google-cloud-bigquery==3.36.0

google-cloud-bigquery-storage==3.36.0

google-cloud-bigquery-datatransfer==3.36.0

google-cloud-bigquery-connection==3.36.0

google-cloud-bigquery-logging==3.36.0

google-cloud-bigquery-admin==3.36.0

google-cloud-bigquery-analyticshub==3.36.0

google-cloud-bigquery-migration==3.36.0

google-cloud-bigquery-pandas==3.36.0

google-cloud-bigquery-storage-transfer==3.36.0

google-cloud-bigquery-datapolicies==3.36.0

google-cloud-bigquery-datatransfer-service==3.36.0

google-cloud-bigquery-reservation==3.36.0

google-cloud-bigquery-rpb==3.36.0

google-cloud-bigquery-updater==3.36.0

google-cloud-bigquery-audit==3.36.0

google-cloud-bigquery-dwh-audit==3.36.0

google-cloud-bigquery-connection-audit==3.36.0

google-cloud-bigquery-analyticshub-audit==3.36.0

google-cloud-bigquery-migration-audit==3.36.0

google-cloud-bigquery-pandas-audit==3.36.0

google-cloud-bigquery-storage-transfer-audit==3.36.0

google-cloud-bigquery-datapolicies-audit==3.36.0

google-cloud-bigquery-datatransfer-service-audit==3.36.0

google-cloud-bigquery-reservation-audit==3.36.0

google-cloud-bigquery-rpb-audit==3.36.0

google-cloud-bigquery-updater-audit==3.36.0

google-cloud-bigquery-audit-admin==3.36.0

google-cloud-bigquery-dwh-audit-admin==3.36.0

google-cloud-bigquery-connection-audit-admin==3.36.0

google-cloud-bigquery-analyticshub-audit-admin==3.36.0

google-cloud-bigquery-migration-audit-admin