### Etherscan API Key Configuration Examples

Source: https://context7_llms

Examples of API key configurations for different blockchain networks supported by Etherscan.

```env
AN_API_KEY=https://api.arbiscan.io/api
```

```env
OPTIMISM_API_KEY=https://api-optimistic.etherscan.io/api
```

--------------------------------

### Add New Chain Support (JavaScript Example)

Source: https://context7_llms

Illustrates how to add support for a new chain by appending its chain ID to an array. This example is presented in a JavaScript context.

```javascript
To add support for a new chain, simply append its "chain ID" to your array, like this JavaScript ( intern can't get Python installed on Windows )
```

--------------------------------

### Add Chains to Etherscan API

Source: https://context7_llms

JavaScript example demonstrating how to configure a list of chain IDs to be used with the Etherscan API. This allows developers to specify which chains their application should interact with.

```javascript
const chains = [42161, 8453, 10, 534352, 81457]
```

--------------------------------

### Etherscan V2 API Documentation Structure

Source: https://context7_llms

This entry outlines the main sections and pages available in the Etherscan V2 API documentation. It includes links to introductory material, guides for API key management, rate limits, supported blockchain networks, migration assistance from V1, and detailed API endpoint descriptions.

```APIDOC
Etherscan V2 API Documentation:

- Introduction: Overview of the Etherscan V2 API.
- Getting an API Key: Guide on how to obtain and manage API keys.
- Rate Limits: Information on API request limits and policies.
- Supported Chains: List of blockchain networks supported by the API.
- V1 to V2 API Migration Guide: Assistance for migrating from the previous API version.
- Use Cases:
  - Accounting/Taxes: Specific applications for financial tracking.
- API Endpoints: Detailed documentation for available API methods and their usage.
```

--------------------------------

### Etherscan API Key Configuration

Source: https://context7_llms

Example of environment variables used to store API keys for different blockchain explorers like Etherscan, BscScan, and Snowscan. These keys are essential for accessing the respective API services.

```env
ETHERSCAN_API_KEY=VZFDUWB3YGQ1YCDKTCU1D6DDSS
BSCSCAN_API_KEY=ZM8ACMJB67C2IXKKBF8URFUNSY
SNOWSCAN_API_KEY=ATJQERBKV1CI3GVKNSE3Q7RGEJ
```

--------------------------------

### Client Code Block Component

Source: https://context7_llms

References a client-side JavaScript component used for rendering code blocks, likely for displaying code snippets or examples within the application.

```javascript
self.__next_f.push([1,"4a:I[73321,["5775","static/chunks/5775-d90fe1fac0834fb2.js","7582","static/chunks/7582-ed84f88cf37ca35d.js","274","static/chunks/274-fd9fee492899a008.js","907","static/chunks/907-474927aeb56a0d51.js","4856","static/chunks/4856-5992d81fe4ccb68d.js","3572","static/chunks/3572-79efa01bcf1bc87b.js","3470","static/chunks/3470-a519fc1af4c94681.js","7808","static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"],"AIActionsDropdown"]
4b:I[56462,["5775","static/chunks/5775-d90fe1fac0834fb2.js","7582","static/chunks/7582-ed84f88cf37ca35d.js","274","static/chunks/274-fd9fee492899a008.js","907","static/chunks/907-474927aeb56a0d51.js","4856","static/chunks/4856-5992d81fe4ccb68d.js","3572","static/chunks/3572-79efa01bcf1bc87b.js","3470","static/chunks/3470-a519fc1af4c94681.js","7808","static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"],"ClientCodeBlock"]
4c:I[42651,["5775","static/chunks/5775-d90fe1fac0834fb2.js","7582","static/chunks/7582-ed84f88cf37ca35d.js","274","static/chunks/274-fd9fee492899a008.js","907","static/chunks/907-474927aeb56a0d51.js","4856","static/chunks/4856-5992d81fe4ccb68d.js","3572","static/chunks/3572-79efa01bcf1bc87b.js","3470","static/chunks/3470-a519fc1af4c94681.js","7808","static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"],"InlineLinkTooltip"]
4d:I[52044,["5775","static/chunks/5775-d90fe1fac0834fb2.js","7582","static/chunks/7582-ed84f88cf37ca35d.js","274","static/chunks/274-fd9fee492899a008.js","907","static/chunks/907-474927aeb56a0d51.js","4856","static/chunks/4856-5992d81fe4ccb68d.js","3572","static/chunks/3572-79efa01bcf1bc87b.js","3470","static/chunks/3470-a519fc1af4c94681.js","7808","static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"],"CopyCodeButton"]
4e:I[36329,["5775","static/chunks/5775-d90fe1fac0834fb2.js","7582","static/chunks/7582-ed84f88cf37ca35d.js","
```

--------------------------------

### Etherscan and Blockchain Explorer API Keys and URLs

Source: https://context7_llms

This snippet provides essential API keys and base URLs for interacting with Etherscan and other blockchain explorers. It includes keys for Ethereum, Binance Smart Chain, Avalanche C-Chain (Snowtrace), Arbitrum (Arbiscan), and Optimism. The URLs are the corresponding API endpoints for these networks.

```shell
ETHERSCAN_API_KEY=VZFDUWB3YGQ1YCDKTCU1D6DDSS
BSCSCAN_API_KEY=ZM8ACMJB67C2IXKKBF8URFUNSY
SNOWSCAN_API_KEY=ATJQERBKV1CI3GVKNSE3Q7RGEJ
ARBISCAN_API_KEY=B6SVGA7K3YBJEQ69AFKJF4YHVX
OPTIMISM_API_KEY=66N5FRNV1ZD4I87S7MAHCJVXFJ

ETHERSCAN_API_URL=https://api.etherscan.io/api
BSCSCAN_API_KEY=https://api.bscscan.com/api
SNOWSCAN_API_KEY=https://api.snowscan.xyz/api
ARBISCAN_API_KEY=https://api.arbiscan.io/api
OPTIMISM_API_KEY=https://api-optimistic.etherscan.io/api
```

--------------------------------

### Gitbook Core CSS

Source: https://context7_llms

These are the core CSS files loaded by the Gitbook platform. They are essential for the styling and layout of the documentation pages.

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/89f26f48fc5b28b2.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/a40b68df878fd408.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/e4670420fc569cb1.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/a0a242a9b1e69e35.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/70fb2196962fcb80.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/53ba230a3ad5cee2.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/95b358fb5c9305a3.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/9eb10da540e5458e.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/714c1c5baa1c832b.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/71c7bcce0a5ef43b.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/91903513867fb52d.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/c97b65bf73ebc61d.css" />
```

```html
<link rel="stylesheet" href="https://static-2v.gitbook.com/_next/static/css/4af9aafd612346fe.css" />
```

--------------------------------

### Next.js Framework Initialization Data

Source: https://context7_llms

These snippets represent data pushed to the Next.js framework's internal queue for initialization. They typically contain module IDs and associated JavaScript file paths, indicating how the application loads its components and modules.

```javascript
self.__next_f.push([1, "856-5992d81fe4ccb68d.js", "3572", "static/chunks/3572-79efa01bcf1bc87b.js", "3470", "static/chunks/3470-a519fc1af4c94681.js", "7808", "static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"], "DateRelative")
```

```javascript
self.__next_f.push([1, "5775", "static/chunks/5775-d90fe1fac0834fb2.js", "7582", "static/chunks/7582-ed84f88cf37ca35d.js", "274", "static/chunks/274-fd9fee492899a008.js", "907", "static/chunks/907-474927aeb56a0d51.js", "4856", "static/chunks/4856-5992d81fe4ccb68d.js", "3572", "static/chunks/3572-79efa01bcf1bc87b.js", "3470", "static/chunks/3470-a519fc1af4c94681.js", "7808", "static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"], "SkeletonSmall")
```

```javascript
self.__next_f.push([1, "5775", "static/chunks/5775-d90fe1fac0834fb2.js", "7582", "static/chunks/7582-ed84f88cf37ca35d.js", "274", "static/chunks/274-fd9fee492899a008.js", "907", "static/chunks/907-474927aeb56a0d51.js", "4856", "static/chunks/4856-5992d81fe4ccb68d.js", "3572", "static/chunks/3572-79efa01bcf1bc87b.js", "3470", "static/chunks/3470-a519fc1af4c94681.js", "7808", "static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"], "SkeletonHeading")
```

```javascript
self.__next_f.push([1, "5775", "static/chunks/5775-d90fe1fac0834fb2.js", "7582", "static/chunks/7582-ed84f88cf37ca35d.js", "274", "static/chunks/274-fd9fee492899a008.js", "907", "static/chunks/907-474927aeb56a0d51.js", "4856", "static/chunks/4856-5992d81fe4ccb68d.js", "3572", "static/chunks/3572-79efa01bcf1bc87b.js", "3470", "static/chunks/3470-a519fc1af4c94681.js", "7808", "static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"], "SuspenseLoadedHint")
```

```javascript
self.__next_f.push([1, "5775", "static/chunks/5775-d90fe1fac0834fb2.js", "7582", "static/chunks/7582-ed84f88cf37ca35d.js", "274", "static/chunks/274-fd9fee492899a008.js", "907", "static/chunks/907-474927aeb56a0d51.js", "4856", "static/chunks/4856-5992d81fe4ccb68d.js", "3572", "static/chunks/3572-79efa01bcf1bc87b.js", "3470", "static/chunks/3470-a519fc1af4c94681.js", "7808", "static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"], "TrackPageViewEvent")
```

```javascript
self.__next_f.push([1, "5775", "static/chunks/5775-d90fe1fac0834fb2.js", "7582", "static/chunks/7582-ed84f88cf37ca35d.js", "274", "static/chunks/274-fd9fee492899a008.js", "907", "static/chunks/907-474927aeb56a0d51.js", "4856", "static/chunks/4856-5992d81fe4ccb68d.js", "3572", "static/chunks/3572-79efa01bcf1bc87b.js", "3470", "static/chunks/3470-a519fc1af4c94681.js", "7808", "static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/%5BpagePath%5D/page-e1d56aa50981a59e.js"], "PageClientLayout")
```

--------------------------------

### Google Analytics Integration Script

Source: https://context7_llms

This snippet includes the asynchronous loading of the Google Analytics script for GitBook sites. It specifies the source URL and includes attributes like nonce for security.

```javascript
document.addEventListener("DOMContentLoaded", () => {
          if (Array.from(document.scripts).find(script => script.src.includes('rocket-loader.min.js'))) {
            const alert = document.createElement('div');
            alert.className = 'p-4 mb-4 text-sm text-red-800 rounded-lg bg-red-50 mt-8 mx-8';
            alert.innerHTML = `
              <strong>Error in site configuration:</strong>
                It looks like ${window.location.hostname} has been incorrectly configured in Cloudflare. This may lead to unexpected behavior or issues with the page loading. If you are the owner of this site, please refer to <a href="https://gitbook.com/docs/published-documentation/custom-domain/configure-dns#are-you-using-cloudflare" class="underline">GitBook's documentation</a> for steps to fix the problem.
              `;

            document.body.prepend(alert);
          }
        });
```

--------------------------------

### CSS File Imports

Source: https://context7_llms

References static CSS files required for styling the web page. These are typically loaded by the browser to render the page's appearance.

```html
<script>self.__next_f.push([1,"a:[[\"$\",\"link\",\"0\",{\"rel\":\"stylesheet\",\"href\":\"https://static-2v.gitbook.com/_next/static/css/91903513867fb52d.css\",\"precedence\":\"next\",\"crossOrigin\":\"$undefined\",\"nonce\":\"$undefined\"}],[\"$\",\"link\",\"4\",{\"rel\":\"stylesheet\",\"href\":\"https://static-2v.gitbook.com/_next/static/css/c97b65bf73ebc61d.css\",\"precedence\":\"next\",\"crossOrigin\":\"$undefined\",\"nonce\":\"$undefined\"}],[\"$\",\"link\",\"5\",{\"rel\":\"stylesheet\",\"href\":\"https://static-2v.gitbook.io/_next/static/css/4af9aafd612346fe.css\",\"precedence\":\"next\",\"crossOrigin\":\"$undefined\",\"nonce\":\"$undefined\"}]],[\"$\",\"$L7\",null,{\"children\":[\"$L8\",\"$L9\",null]}]],[],null,false]},null,false]},null,false]},null,false]},null,false]},null,false]},null,false]},null,false],[\"$\",\"$1\",\"h\",{\"children\":[null,[\"$\",\"$1\",\"6Unl6oCUOZk1mxzwVQ-zU\",{\"children\":[[\"$\",\"$La\",null,{\"children\":\"$Lb\"}],[\"$\",\"meta\",null,{\"name\":\"next-size-adjust\",\"content\":\"\"}]]}],[\"$\",\"$Lc\",null,{\"children\":\"$Ld\"}]]}],\"m\":\"$undefined\",\"G\":[\"$e\",[]],\"s\":false,\"S\":true}\n"])</script>
```

--------------------------------

### Etherscan.io API PRO Endpoint

Source: https://context7_llms

This entry documents the API PRO endpoint for Etherscan.io. It provides a direct link to the API documentation page, which is crucial for developers integrating with the Etherscan platform. The link specifies the target URL and associated click tracking insights.

```APIDOC
Endpoint: https://etherscan.io/apis
Method: GET
Description: Access the Etherscan API PRO documentation and related services.
Parameters: None directly specified in this snippet.
Returns: Link to the API documentation page.
Example Usage:
  Navigate to https://etherscan.io/apis in a web browser.
```

--------------------------------

### Etherscan.io Navigation Links

Source: https://context7_llms

This snippet details the structure and content of navigation links presented on the Etherscan.io website. It includes links to the homepage, API documentation, and the official Twitter profile, specifying their URLs and associated CSS classes for styling.

```javascript
self.__next_f.push([1,"33:I[4093,["5775","static/chunks/5775-d90fe1fac0834fb2.js","274","static/chunks/274-fd9fee492899a008.js","4574","static/chunks/4574-1b7dbd30e5b62921.js","907","static/chunks/907-474927aeb56a0d51.js","3572","static/chunks/3572-79efa01bcf1bc87b.js","3225","static/chunks/3225-bd36fc0949ef28e8.js","2508","static/chunks/app/sites/static/%5Bmode%5D/%5BsiteURL%5D/%5BsiteData%5D/layout-f1a1dc416141dc0d.js"],"DropdownMenuItem"]
29:["$","$L26","Home",{"href":"https://etherscan.io/","className":"flex items-center shrink contrast-more:underline truncate text-tint links-default:hover:text-primary links-default:data-[state=open]:text-primary links-default:tint:hover:text-tint-strong links-default:tint:data-[state=open]:text-tint-strong underline-offset-2 links-accent:hover:underline links-accent:data-[state=open]:underline links-accent:underline-offset-4 links-accent:decoration-primary-subtle links-accent:decoration-[3px] links-accent:py-0.5 theme-bold:text-header-link theme-bold:hover:!text-header-link/7","insights":{"type":"link_click","link":{"target":{"url":"https://etherscan.io/","kind":"url"},"position":"header"}},"children":["Home",null]}]
2a:["$","$L26","API PRO",{"href":"https://etherscan.io/apis","className":"flex items-center shrink contrast-more:underline truncate text-tint links-default:hover:text-primary links-default:data-[state=open]:text-primary links-default:tint:hover:text-tint-strong links-default:tint:data-[state=open]:text-tint-strong underline-offset-2 links-accent:hover:underline links-accent:data-[state=open]:underline links-accent:underline-offset-4 links-accent:decoration-primary-subtle links-accent:decoration-[3px] links-accent:py-0.5 theme-bold:text-header-link theme-bold:hover:!text-header-link/7","insights":{"type":"link_click","link":{"target":{"url":"https://etherscan.io/apis","kind":"url"},"position":"header"}},"children":["API PRO",null]}]
2b:["$","$L26","Twitter",{"href":"https://twitter.com/etherscan","className":"flex items-center shrink contrast-more:underline truncate text-tint links-def
```

--------------------------------

### Page Meta Tags and Title

Source: https://context7_llms

Defines essential meta tags for SEO, viewport configuration, color schemes, and the page title. Includes links for favicons supporting light and dark modes.

```html
<script>self.__next_f.push([1,"b:[[\"$\",\"meta\",\"0\",{\"charSet\":\"utf-8\"}],[\"$\",\"meta\",\"1\",{\"name\":\"viewport\",\"content\":\"width=device-width, initial-scale=1, maximum-scale=1\"}],[\"$\",\"meta\",\"2\",{\"name\":\"color-scheme\",\"content\":\"light\"}]]\n8:null\n9:null\n"])</script><script>self.__next_f.push([1,"d:[[\"$\",\"title\",\"0\",{\"children\":\"Introduction | Etherscan\"}],[\"$\",\"meta\",\"1\",{\"name\":\"generator\",\"content\":\"GitBook (6ff63f2)\"}],[\"$\",\"meta\",\"2\",{\"name\":\"robots\",\"content\":\"index, follow\"}],[\"$\",\"link\",\"3\",{\"rel\":\"canonical\",\"href\":\"https://docs.etherscan.io/etherscan-v2\"}],[\"$\",\"meta\",\"4\",{\"name\":\"mobile-web-app-capable\",\"content\":\"yes\"}],[\"$",\"meta\",\"5\",{\"name\":\"apple-mobile-web-app-title\",\"content\":\"Etherscan\"}],[\"$",\"meta\",\"6\",{\"name\":\"apple-mobile-web-app-status-bar-style\",\"content\":\"default\"}],[\"$",\"meta\",\"7\",{\"property\":\"og:title\",\"content\":\"Introduction | Etherscan\"}],[\"$",\"meta\",\"8\",{\"property\":\"og:image\",\"content\":\"https://docs.etherscan.io/etherscan-v2/~gitbook/ogimage/-McrEzjGbqZAnrkSzr0z\"}],[\"$",\"meta\",\"9\",{\"name\":\"twitter:card\",\"content\":\"summary_large_image\"}],[\"$",\"meta\",\"10\",{\"name\":\"twitter:title\",\"content\":\"Introduction | Etherscan\"}],[\"$",\"meta\",\"11\",{\"name\":\"twitter:image\",\"content\":\"https://docs.etherscan.io/etherscan-v2/~gitbook/ogimage/-McrEzjGbqZAnrkSzr0z\"}],[\"$",\"link\",\"12\",{\"rel\":\"icon\",\"href\":\"https://docs.etherscan.io/~gitbook/image?url=https%3A%2F%2F3192417840-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Forganizations%252F-MZqVDUwcuHnapNciwoA%252Fsites%252Fsite_gbWjf%252Ficon%252F3aOW5ISV82zf1oWuQQD5%252Fetherscan-logo-circle.png%3Falt%3Dmedia%26token%3D4073541c-f962-46d3-8f66-ff5d2d7cf0b3%26width%3D48%26height%3D48%26sign%3Dbbfdfdee%26sv%3D2\",\"type\":\"image/png\",\"media\":\"(prefers-color-scheme: light)\"}],[\"$",\"link\",\"13\",{\"rel\":\"icon\",\"href\":\"https://docs.etherscan.io/~gitbook/image?url=https%3A%2F%2F3192417840-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Forganizations%252F-MZqVDUwcuHnapNciwoA%252Fsites%252Fsite_gbWjf%252Ficon%252F3aOW5ISV82zf1oWuQQD5%252Fetherscan-logo-circle.png%3Falt%3Dmedia%26token%3D4073541c-f962-46d3-8f66-ff5d2d7cf0b3%26width%3D48%26height%3D48%26sign%3Dbbfdfdee%26sv%3D2\",\"type\":\"image/png\",\"media\":\"(prefers-color-scheme: dark)\"}],[\"$",\"link\",\"14\",{\"rel\":\"icon\",\"href\":\"https://docs.etherscan.io/~gitbook/image?url=https%3A%2F%2F3192417840-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Forganizations%252F-MZqVDUwcuHnapNciwoA%252Fsites%252Fsite_gbWjf%252Ficon%252F3aOW5ISV82zf1oWuQQD5%252Fetherscan-logo-circle.png%3Falt%3Dmedia%26token%3D4073541c-f962-46d3-8f66-ff5d2d7cf0b3%26width%3D48%26height%3D48%26sign%3Dbbfdfdee%26sv%3D2\",\"type\":\"image/png\",\"media\":\"(prefers-color-scheme: light)\"}],[\"$",\"link\",\"15\",{\"rel\":\"icon\",\"href\":\"https://docs.etherscan.io/~gitbook/image?url=https%3A%2F%2F3192417840-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Forganizations%252F-MZqVDUwcuHnapNciwoA%252Fsites%252Fsite_gbWjf%252Ficon%252F3aOW5ISV82zf1oWuQQD5%252Fetherscan-logo-circle.png%3Falt%3Dmedia%26token%3D4073541c-f962-46d3-8f66-ff5d2d7cf0b3%26width%3D48%26height%3D48%26sign%3Dbbfdfdee%26sv%3D2\",\"type\":\"image/png\",\"media\":\"(prefers-color-scheme: dark)\"}],[\"$",\"link\",\"16\",{\"rel\":\"icon\",\"href\":\"https://docs.etherscan.io/~gitbook/image?url=https%3A%2F%2F3192417840-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Forganizations%252F-MZqVDUwcuHnapNciwoA%252Fsites%252Fsite_gbWjf%252Ficon%252F3aOW5ISV82zf1oWuQQD5%252Fetherscan-logo-circle.png%3Falt%3Dmedia%26token%3D4073541c-f962-46d3-8f66-ff5d2d7cf0b3%26width%3D48%26height%3D48%26sign%3Dbbfdfdee%26sv%3D2\",\"type\":\"image/png\",\"media\":\"(prefers-color-scheme: light)\"}],[\"$",\"link\",\"17\",{\"rel\":\"icon\",\"href\":\"https://docs.etherscan.io/~gitbook/image?url=https%3A%2F%2F3192417840-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Forganizations%252F-MZqVDUwcuHnapNciwoA%252Fsites%252Fsite_gbWjf%252Ficon%252F3aOW5ISV82zf1oWuQQD5%252Fetherscan-logo-circle.png%3Falt%3Dmedia%26token%3D4073541c-f962-46d3-8f66-ff5d2d7cf0b3%26width%3D48%26height%3D48%26sign%3Dbbfdfdee%26sv%3D2\",\"type\":\"image/png\",\"media\":\"(prefers-color-scheme: dark)\"}]]\n"
```

--------------------------------

### Fetch Balances from Etherscan API (JavaScript)

Source: https://context7_llms

This snippet demonstrates how to fetch cryptocurrency balances from the Etherscan API for multiple blockchain networks. It iterates through a list of chain IDs and constructs API requests to retrieve account balances. Ensure you replace 'YourApiKeyToken' with a valid Etherscan API key.

```javascript
const chains = [42161, 8453, 10, 534352, 81457]

for (const chain of chains) {
  // endpoint accepts one chain at a time, loop for all your chains
  const balance = fetch(`https://api.etherscan.io/v2/api?chainid=${chain}
     &module=account
     &action=balance
     &address=0xb5d85cbf7cb3ee0d56b3bb207d5fc4b82f43f511
     &tag=latest&apikey=YourApiKeyToken`)
}
```

--------------------------------

### Fetch Account Balance from Etherscan

Source: https://context7_llms

This JavaScript code iterates through a list of chains and fetches the account balance for a specific address using the Etherscan API. It requires an API key and assumes the `chains` variable is defined elsewhere.

```javascript
for (const chain of chains) {
  // endpoint accepts one chain at a time, loop for all your chains
  const balance = fetch(`https://api.etherscan.io/v2/api?
     chainid=${chain}
     &module=account
     &action=balance
     &address=0xb5d85cbf7cb3ee0d56b3bb207d5fc4b82f43f511
     &tag=latest&apikey=YourApiKeyToken`)
     //
}
```

--------------------------------

### Cloudflare Misconfiguration Alert Script

Source: https://context7_llms

This JavaScript code runs on DOMContentLoaded to check for the presence of 'rocket-loader.min.js'. If detected, it injects an alert message into the page, informing the user about potential Cloudflare misconfigurations and linking to GitBook's documentation for resolution.

```javascript
document.addEventListener("DOMContentLoaded", () => {
          if (Array.from(document.scripts).find(script => script.src.includes('rocket-loader.min.js'))) {
            const alert = document.createElement('div');
            alert.className = 'p-4 mb-4 text-sm text-red-800 rounded-lg bg-red-50 mt-8 mx-8';
            alert.innerHTML = `
              <strong>Error in site configuration:</strong>
                It looks like ${window.location.hostname} has been incorrectly configured in Cloudflare. This may lead to unexpected behavior or issues with the page loading. If you are the owner of this site, please refer to <a href="https://gitbook.com/docs/published-documentation/custom-domain/configure-dns#are-you-using-cloudflare" class="underline">GitBook's documentation</a> for steps to fix the problem.
              `;

            document.body.prepend(alert);
          }
        });
```

--------------------------------

### Etherscan Geth/Parity Proxy API

Source: https://context7_llms

Offers access to proxy functionalities for Geth and Parity clients via the Etherscan API. This allows interaction with node functionalities through Etherscan's infrastructure.

```APIDOC
Endpoint: /etherscan-v2/api-endpoints/geth-parity-proxy
Description: Interact with Geth or Parity node functionalities through Etherscan's proxy service.
Usage: May include methods for RPC calls or specific client interactions.
```

--------------------------------

### Etherscan Chain Configuration

Source: https://context7_llms

Configuration variables for Etherscan API endpoints and keys across various chains. These are typically used in environment files or application settings.

```env
ARBISCAN_API_KEY=B6SVGA7K3YBJEQ69AFKJF4YHVX
OPTIMISM_API_KEY=66N5FRNV1ZD4I87S7MAHCJVXFJ
ETHERSCAN_API_URL=https://api.etherscan.io/api
BSCSCAN_API_KEY=https://api.bscscan.com/api
SNOWSCAN_API_KEY=https://api.snowscan.xyz/api
ARBISCAN_API_KEY=https://api.arbiscan.io/api
OPTIMISM_API_KEY=https://api-optimistic.etherscan.io/api
```

--------------------------------

### Light Theme Color Variables

Source: https://context7_llms

CSS variables defining color palettes for info, warning, danger, and success states in a light theme. Each variable specifies an RGB color value and its contrast counterpart.

```css
--info-1: 255 255 255; --contrast-info-1: 29 29 29;
--info-2: 250 250 250; --contrast-info-2: 29 29 29;
--info-3: 247 247 247; --contrast-info-3: 29 29 29;
--info-4: 242 242 242; --contrast-info-4: 29 29 29;
--info-5: 237 237 237; --contrast-info-5: 29 29 29;
--info-6: 229 229 229; --contrast-info-6: 29 29 29;
--info-7: 217 217 217; --contrast-info-7: 29 29 29;
--info-8: 204 204 204; --contrast-info-8: 29 29 29;
--info-9: 120 120 120; --contrast-info-9: 255 255 255;
--info-10: 121 121 121; --contrast-info-10: 255 255 255;
--info-11: 110 110 110; --contrast-info-11: 255 255 255;
--info-12: 29 29 29; --contrast-info-12: 255 255 255;
--info-original: 120 120 120; --contrast-info-original: 255 255 255;
--warning-1: 255 255 255; --contrast-warning-1: 29 29 29;
--warning-2: 254 249 244; --contrast-warning-2: 29 29 29;
--warning-3: 255 245 236; --contrast-warning-3: 29 29 29;
--warning-4: 255 239 225; --contrast-warning-4: 29 29 29;
--warning-5: 254 233 214; --contrast-warning-5: 29 29 29;
--warning-6: 250 224 200; --contrast-warning-6: 29 29 29;
--warning-7: 242 211 182; --contrast-warning-7: 29 29 29;
--warning-8: 233 197 164; --contrast-warning-8: 29 29 29;
--warning-9: 254 154 0; --contrast-warning-9: 29 29 29;
--warning-10: 187 92 0; --contrast-warning-10: 255 255 255;
--warning-11: 138 102 66; --contrast-warning-11: 255 255 255;
--warning-12: 35 28 21; --contrast-warning-12: 255 255 255;
--warning-original: 254 154 0; --contrast-warning-original: 29 29 29;
--danger-1: 255 255 255; --contrast-danger-1: 29 29 29;
--danger-2: 255 247 246; --contrast-danger-2: 29 29 29;
--danger-3: 255 242 239; --contrast-danger-3: 29 29 29;
--danger-4: 255 234 230; --contrast-danger-4: 29 29 29;
--danger-5: 255 226 221; --contrast-danger-5: 29 29 29;
--danger-6: 255 215 210; --contrast-danger-6: 29 29 29;
--danger-7: 255 200 193; --contrast-danger-7: 29 29 29;
--danger-8: 254 184 177; --contrast-danger-8: 29 29 29;
--danger-9: 251 44 54; --contrast-danger-9: 255 255 255;
--danger-10: 228 0 33; --contrast-danger-10: 255 255 255;
--danger-11: 158 87 81; --contrast-danger-11: 255 255 255;
--danger-12: 39 25 23; --contrast-danger-12: 255 255 255;
--danger-original: 251 44 54; --contrast-danger-original: 255 255 255;
--success-1: 255 255 255; --contrast-success-1: 29 29 29;
--success-2: 245 252 246; --contrast-success-2: 29 29 29;
--success-3: 238 252 240; --contrast-success-3: 29 29 29;
--success-4: 229 249 231; --contrast-success-4: 29 29 29;
--success-5: 219 246 222; --contrast-success-5: 29 29 29;
--success-6: 207 240 210; --contrast-success-6: 29 29 29;
--success-7: 190 229 194; --contrast-success-7: 29 29 29;
--success-8: 172 218 177; --contrast-success-8: 29 29 29;
--success-9: 0 201 80; --contrast-success-9: 29 29 29;
--success-10: 0 152 23; --contrast-success-10: 255 255 255;
--success-11: 74 124 82; --contrast-success-11: 255 255 255;
--success-12: 22 32 23; --contrast-success-12: 255 255 255;
--success-original: 0 201 80; --contrast-success-original: 29 29 29;
```

--------------------------------

### Detect Cloudflare Rocket Loader and Show Error Alert

Source: https://context7_llms

This JavaScript snippet checks if the 'rocket-loader.min.js' script is present on the page. If detected, it injects an alert message into the DOM to inform the user about potential Cloudflare misconfiguration and provides a link to GitBook documentation for troubleshooting.

```javascript
if (Array.from(document.scripts).find(script => script.src.includes('rocket-loader.min.js'))) {
  const alert = document.createElement('div');
  alert.className = 'p-4 mb-4 text-sm text-red-800 rounded-lg bg-red-50 mt-8 mx-8';
  alert.innerHTML = `
    <strong>Error in site configuration:</strong>
      It looks like ${window.location.hostname} has been incorrectly configured in Cloudflare. This may lead to unexpected behavior or issues with the page loading. If you are the owner of this site, please refer to <a href="https://gitbook.com/docs/published-documentation/custom-domain/configure-dns#are-you-using-cloudflare" class="underline">GitBook's documentation</a> for steps to fix the problem.
    `;

  document.body.prepend(alert);
}
```