diff --git a/Existing_API_Collection/CoinGecko_API/README.md b/Existing_API_Collection/CoinGecko_API/README.md
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+# CoinGecko API
+Welcome to the Coin Gecko API! This API is built to provide you with comprehensive information about top 100 Cryptocurrencies.
+
+## Features
+- **Fetch Detailed Information about a Crypto Coin:** Retrieve comprehensive data about any of the top 100 coins, including their icon, symbol, price, market capital and 24 hour change in %
+- **Simple and Easy-to-Use Interface:** Designed with utmost simplicity, it has an easy-to-use interface.
+- **Search Functionality:** Easily search for Crypto Coins by name to retrieve information quickly.
+- **Currency Selector:** Easily switch between USD or INR
+
+## Technologies Used
+- HTML
+- CSS
+- JavaScript
+- API ( for fetching data )
+
+# API Integration
+This application uses `https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd` to fetch the data.
+
+## Installation
+To set up the Country API locally, follow these steps:
+
+- Clone the repository
+- Switch to Existing_API_Collection folder `cd Existing_API_Collection`
+- Now switch to CoinGecko_API folder `cd CoinGecko_API`
+- Run command `.\/index.html`
+
+## Screenshots
+![Screenshot](/Existing_API_Collection/CoinGecko_API/assets/images/CoinGecko_API.png)
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diff --git a/Existing_API_Collection/CoinGecko_API/index.html b/Existing_API_Collection/CoinGecko_API/index.html
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+
+
+
+
+
+ Cryptocurrency Coins
+
+
+
+
+
+
+
+
+
+
+
+
Icon
+
Coin
+
Current Price
+
Market Cap
+
% Change (24h)
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Existing_API_Collection/CoinGecko_API/script.js b/Existing_API_Collection/CoinGecko_API/script.js
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+let allCoins = [];
+let displayedCoins = [];
+const rowsPerPage = 10;
+let currentPage = 1;
+let currency = 'usd';
+const currencySymbols = {
+ usd: '$',
+ inr: '₹'
+};
+
+async function fetchCoins() {
+ const response = await fetch(`https://api.coingecko.com/api/v3/coins/markets?vs_currency=${currency}`);
+ allCoins = await response.json();
+ displayedCoins = [...allCoins];
+ displayCoins();
+}
+
+function displayCoins() {
+ const tableBody = document.getElementById('cryptoTable').getElementsByTagName('tbody')[0];
+ tableBody.innerHTML = '';
+ const start = (currentPage - 1) * rowsPerPage;
+ const end = start + rowsPerPage;
+ const paginatedCoins = displayedCoins.slice(start, end);
+
+ paginatedCoins.forEach(coin => {
+ const row = tableBody.insertRow();
+ const cellIcon = row.insertCell(0);
+ const img = document.createElement('img');
+ img.src = coin.image;
+ img.alt = coin.name;
+ img.width = 20;
+ img.height = 20;
+ cellIcon.appendChild(img);
+
+ const coinNameSymbol = `${coin.name} ⁌ ${coin.symbol.toUpperCase()}`;
+ row.insertCell(1).innerText = coinNameSymbol;
+ row.insertCell(2).innerText = `${currencySymbols[currency]}${coin.current_price.toLocaleString()}`;
+ row.insertCell(3).innerText = `${currencySymbols[currency]}${coin.market_cap.toLocaleString()}`;
+
+ const change24h = coin.price_change_percentage_24h.toFixed(2);
+ const cellChange = row.insertCell(4);
+ cellChange.innerText = `${change24h}%`;
+ cellChange.style.color = change24h >= 0 ? '#07df07' : '#df2707';
+ });
+
+ setupPagination();
+}
+
+function setupPagination() {
+ const pagination = document.getElementById('pagination');
+ pagination.innerHTML = '';
+ const pageCount = Math.ceil(displayedCoins.length / rowsPerPage);
+
+ for (let i = 1; i <= pageCount; i++) {
+ const pageLink = document.createElement('span');
+ pageLink.innerText = i;
+ pageLink.className = 'page-link';
+ if (i === currentPage) {
+ pageLink.style.fontWeight = 'bold';
+ }
+ pageLink.addEventListener('click', () => {
+ currentPage = i;
+ displayCoins();
+ });
+ pagination.appendChild(pageLink);
+ }
+}
+
+function searchCoins() {
+ const input = document.getElementById('searchBar').value.toUpperCase();
+ if (input === '') {
+ displayedCoins = [...allCoins];
+ } else {
+ displayedCoins = allCoins.filter(coin => coin.name.toUpperCase().includes(input));
+ }
+ currentPage = 1;
+ displayCoins();
+}
+
+function changeCurrency() {
+ currency = document.getElementById('currencySelector').value;
+ fetchCoins();
+}
+
+// Fetch coins on page load
+fetchCoins();
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diff --git a/Existing_API_Collection/CoinGecko_API/style.css b/Existing_API_Collection/CoinGecko_API/style.css
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+body {
+ background-color: #121212;
+ color: #ffffff;
+ font-family: Arial, sans-serif;
+ display: flex;
+ justify-content: center;
+ align-items: center;
+ height: 100vh;
+ margin: 0;
+ flex-direction: column;
+}
+.container {
+ width: 60%;
+ border-radius: 6px;
+ padding: 10px;
+ background-color: #1e1e1e;
+ position: relative;
+}
+table {
+ width: 100%;
+ border-collapse: collapse;
+ margin-top: 20px;
+}
+th, td {
+ padding: 8px;
+}
+th {
+ text-align: left;
+}
+td {
+ background-color: transparent;
+ border-bottom: 2px solid #2b2b2b;
+ height: 40px;
+}
+#searchBar {
+ width: 70%;
+ height: 30px;
+ font-size: medium;
+ border: none;
+ border-radius: 6px;
+ padding: 10px;
+ color: #ffffff;
+ background-color: #2b2b2b;
+ margin: 0 auto;
+ display: block;
+}
+#currencySelector {
+ position: absolute;
+ top: 10px;
+ right: 10px;
+ padding: 10px;
+ background-color: #2b2b2b;
+ color: #ffffff;
+ border: none;
+ border-radius: 6px;
+ cursor: pointer;
+}
+#pagination {
+ margin-top: 20px;
+ text-align: center;
+}
+.page-link {
+ cursor: pointer;
+ padding: 10px;
+ margin: 5px;
+ display: inline-block;
+ background-color: #2b2b2b;
+ border-radius: 6px;
+}
+.page-link:hover {
+ background-color: #333;
+}
+.footer {
+ margin-top: 20px;
+ text-align: center;
+ color: #ffffff;
+}
+.footer a {
+ color: orange;
+ font-style: italic;
+ text-decoration: none;
+}
+.header {
+ display: flex;
+ justify-content: space-between;
+ align-items: center;
+}
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diff --git a/Existing_API_Collection/README.md b/Existing_API_Collection/README.md
index 58c19cd..99e707d 100644
--- a/Existing_API_Collection/README.md
+++ b/Existing_API_Collection/README.md
@@ -24,5 +24,6 @@
|[GeoAPI](./GeoAPI/)| GeoAPI is a simple RESTful API that allows you to convert addresses to geographic coordinates (latitude and longitude) and vice versa. This API is built using Node.js and Express.|
|[Books API](./Books_API/)| The Google Books API allows developers to access a wealth of information about books, including their titles, authors, publishers, publication dates, and descriptions. |
|[Currency Converter API](./Currency_Converter_API/)| Currency_Converter is a simple RESTful API that allows you to convert currency values to different currency|
+|[CoinGecko API](./CoinGecko_API/)| This API is use to fetch Top 100 Crypto Currencies and display comprehensive data about them with market capital, price etc.|
|[Gemini API](./Gemini_API/)| The Google Gemini API is a powerful tool that leverages cutting-edge generative AI models to assist developers and businesses in various tasks. It provides functionalities such as text generation, content creation, and creative assistance.|
|[Brewery_API](./Brewery_API/)| Brewery Finder API is designed to help you explore the world of breweries by providing detailed information about various breweries across different states.|