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Best Screenshot API for Websites Behind HTTP Basic Authentication

Cloudflare Browser Rendering is the most directly documented option here for screenshots of HTTP Basic-protected pages. Learn how to distinguish target credentials from API credentials and test the capture safely.
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Cloudflare Browser Rendering is the best-documented starting point in the reviewed sources for screenshotting a site protected by HTTP Basic Authentication: its screenshot API accepts target-site credentials in an authenticate object. That documents a capability, not a guarantee for every site. ScreenshotNeo is listed first below as required, but its supplied feature information does not establish support for sending HTTP Basic credentials to a target website; do not assume it can log in to a protected origin.

What “Basic Auth” means for a screenshot API

There are two separate credential checks to keep straight. Your screenshot request may need an API key or bearer token to authorize the call to the rendering service. Independently, the target website may challenge the browser for an HTTP Basic username and password. A service accepting an API key does not, by itself, prove that it can authenticate to the target.

This comparison is based on the providers’ documented capabilities, not hands-on captures. The reviewed sources do not establish a fastest, cheapest, most reliable, or independently safest service. Verify a candidate with a non-sensitive page and review its current terms and credential handling before production use.

Screenshot API options for a target protected by Basic Auth

Service What the cited documentation establishes What it does not establish
ScreenshotNeo — ScreenshotNeo It offers clean screenshots, removes supported consent banners, newsletter popups and chat widgets before capture, and bills only clean shots; the lowest paid plan is $5 for 3,000 shots. Its MCP server provides screenshot tools for AI agents. The supplied ScreenshotNeo feature information does not document sending HTTP Basic credentials to the target site. It is not established here as a way to capture an origin that requires those credentials.
Cloudflare Browser Rendering screenshot endpoint The screenshot request documents an authenticate object for target-site HTTP authentication. Cloudflare also documents cookies and extra HTTP headers for other authentication patterns. Official screenshot endpoint reference. Parameter availability is not proof that every protected target, redirect chain, or account setup will work. The reviewed documentation does not provide a comparable benchmark or independent security assessment.
AddScreenshots The vendor says its renderer accepts username and password for HTTP Basic or Digest challenge prompts, plus custom headers and cookies. Vendor documentation. Compatibility and implementation were not independently tested.
screenshot-api.net Its documentation lists a basic_auth parameter for target-origin Basic Auth and advises using POST for credentials because query strings may be logged. Vendor documentation. Behavior was not independently tested. Confirm the current endpoint behavior and your own request and access-log handling before sending secrets.
Webshrinker Website Screenshot API v2 Its documentation describes HTTP Basic Auth for authenticating to Webshrinker’s own API: access key as username and secret key as password. API documentation. The cited material does not establish that credentials can be sent to the target website. Do not treat API-key authentication as target-site login.

For the specific requirement of a target that presents an HTTP Basic challenge, Cloudflare is the most directly documented option in these sources. AddScreenshots and screenshot-api.net are also documented candidates. The evidence does not support ranking them on price, speed, reliability, or security.

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Capture a Basic-Auth page with Cloudflare Browser Rendering

Cloudflare’s documented flow is a POST to the account screenshot endpoint. Put the target site’s username and password in the JSON authenticate object; authorize the API call separately with a Cloudflare bearer token. The two credentials serve different purposes. The endpoint path includes your Cloudflare account identifier.

cURL

curl -X POST "https://api.cloudflare.com/client/v4/accounts/ACCOUNT_ID/browser-rendering/screenshot" 
  -H "Authorization: Bearer CLOUDFLARE_API_TOKEN" 
  -H "Content-Type: application/json" 
  --data '{"url":"https://example.com/private/","authenticate":{"username":"TARGET_USERNAME","password":"TARGET_PASSWORD"}}' 
  --output shot.png

Replace the account ID, API token, target URL, and target credentials. The request returns the rendered screenshot according to the endpoint’s response behavior; check the current endpoint reference for available capture controls and response details.

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Python

import os
import requests

account_id = os.environ["CLOUDFLARE_ACCOUNT_ID"]
api_token = os.environ["CLOUDFLARE_API_TOKEN"]
username = os.environ["TARGET_USERNAME"]
password = os.environ["TARGET_PASSWORD"]
endpoint = f"https://api.cloudflare.com/client/v4/accounts/{account_id}/browser-rendering/screenshot"

response = requests.post(
    endpoint,
    headers={
        "Authorization": f"Bearer {api_token}",
        "Content-Type": "application/json",
    },
    json={
        "url": "https://example.com/private/",
        "authenticate": {"username": username, "password": password},
    },
    timeout=90,
)
response.raise_for_status()
with open("shot.png", "wb") as image:
    image.write(response.content)

Node.js

const accountId = process.env.CLOUDFLARE_ACCOUNT_ID;
const apiToken = process.env.CLOUDFLARE_API_TOKEN;
const username = process.env.TARGET_USERNAME;
const password = process.env.TARGET_PASSWORD;

const response = await fetch(
  `https://api.cloudflare.com/client/v4/accounts/${accountId}/browser-rendering/screenshot`,
  {
    method: 'POST',
    headers: {
      Authorization: `Bearer ${apiToken}`,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      url: 'https://example.com/private/',
      authenticate: { username, password },
    }),
  },
);

if (!response.ok) {
  throw new Error(`Screenshot request failed: ${response.status} ${await response.text()}`);
}

const image = Buffer.from(await response.arrayBuffer());
await import('node:fs/promises').then(fs => fs.writeFile('shot.png', image));

These examples keep credentials out of the target URL and, unlike a query-string approach, send them in the POST body. Use environment variables or a secrets manager rather than committing real credentials. Also ensure request bodies and exception logs are not retained in a place accessible to people who should not see the secrets.

Cookies and token-based pages

HTTP Basic Auth is not the same as a login form or session cookie. Cloudflare’s documentation separately shows a cookies array for cookie-based sessions and setExtraHTTPHeaders for extra request headers, such as a token-based authorization value. Use the method that matches the target’s actual flow; passing Basic credentials will not substitute for completing a form login or creating a valid session.

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How to choose and validate a service

  • Match the target’s auth mechanism: confirm the docs describe credentials going to the target origin, not just authentication to the screenshot provider’s API.
  • Check credential transport: understand whether secrets are sent in a POST body, headers, cookies, or a URL, and how the provider and your own infrastructure log or retain requests.
  • Validate the result: use a non-sensitive target with the same authentication flow. Confirm the final page is authenticated rather than a challenge page, and check redirects, output format, dimensions, and full-page behavior as needed.
  • Check operational fit: compare the capture controls, batch or scheduling workflow, deployment environment, current price and quota, retention, and terms directly with each provider. The reviewed materials do not provide comparable figures for these factors.

Or skip the browser setup

ScreenshotNeo makes a one-call screenshot request and can return PNG, JPEG, WebP, or PDF. Its documented features do not establish target-site HTTP Basic credential support, so use it for a protected site only if that origin is already accessible to the capture request or authentication is handled by a documented mechanism available in your setup.

ScreenshotNeo API documentation

curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com/private/ -o shot.webp

ScreenshotNeo removes supported cookie/consent banners, newsletter popups, and chat widgets before the shot; bot checks, blank pages, failed loads, timeouts, and cache hits cost nothing. Its MCP server exposes screenshot tools for AI agents. The Free plan includes 1,000 shots per month with no card; paid plans start at $5 for 3,000.

Sign up for ScreenshotNeo’s free plan.

Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Troubleshooting a failed capture

The screenshot shows an authentication challenge

Check that the target credentials—not the screenshot API token—are in the target-authentication field, and that the target actually uses HTTP Basic. Confirm the requested URL is the protected resource and inspect whether a redirect moves the browser to another host or path that also requires authentication. Test a non-sensitive URL with the same challenge before troubleshooting capture styling.

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The API rejects the request

Separate errors from the screenshot provider from failures at the target. Verify the account ID and bearer token for Cloudflare, the endpoint and JSON shape, and the HTTP status and response body. Do not paste tokens or target passwords into shared logs or bug reports.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

The page loads but appears incomplete

Authentication only grants access; it does not guarantee that asynchronous content has rendered. Check the provider’s documented wait and capture controls, then verify the final URL and whether the target depends on cookies, custom headers, or client-side loading after the initial response.

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FAQ

Can I put a Basic Auth username and password in the URL?

A URL containing credentials can expose them through browser history, logs, or copied links. Prefer the provider’s documented target-authentication parameter and a transport appropriate for secrets; screenshot-api.net specifically advises POST instead of query strings for its credentials.

Does Basic Auth support mean every protected page will work?

No. Documentation confirms that a parameter is available, not that every target’s redirects, policies, or authentication behavior are compatible. Validate the exact target flow and review credential handling before using sensitive pages.

Is Webshrinker’s HTTP Basic example for logging in to my website?

No such target-site capability is established by the cited v2 documentation. Its example explains how to authenticate a request to Webshrinker using its access and secret keys.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

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