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You can send screenshots to an Amazon S3 bucket through Browshot’s documented screenshot API, using hosting=s3 and hosting_bucket. Thumbalizr’s published Embed API does not document an S3 destination parameter, so this is a Browshot workflow—not an undocumented Thumbalizr setting. Contact Browshot for its current account and bucket-upload setup instructions before relying on direct uploads.

Thumbalizr and Browshot use different documented API paths

Thumbalizr’s Embed API creates a signed screenshot-image request. Its documented options include screenshot size, dimensions, delay, format and quality; the documentation does not list hosting=s3 or a bucket parameter. The API response is intended to provide an image URL for embedding and reports status through X-Thumbalizr-Status (QUEUED, OK or FAILED), along with generated-time and error headers. See the Thumbalizr Embed API documentation.

Thumbalizr’s legacy API documentation likewise describes downloading thumbnails for offline use and recommends Embed when avoiding exposure of an API key matters. It does not document direct S3 delivery. Browshot, the service identified with Thumbalizr in an acquisition announcement, separately documents automatic upload to a customer S3 bucket. Treat these as distinct API surfaces; do not assume Thumbalizr request tokens, parameters or results work with Browshot.

Set up Browshot’s documented S3 workflow

  1. Create or use a Browshot API account, then use its screenshot creation operation, /api/v1/screenshot/create. The API documentation lists url and instance_id as required parameters.

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  2. Request S3 hosting by adding hosting=s3 and hosting_bucket=<your-bucket>. The API also documents hosting_file to select an object name, hosting_width, hosting_height and hosting_scale for thumbnail sizing, plus hosting_headers and hosting_private.

  3. Contact Browshot for its current S3 onboarding instructions and the account or bucket details it needs. Browshot says it can generate the screenshot or thumbnail and upload it to your bucket without first downloading the file locally. Its S3 hosting page does not establish that setup is immediately available without contacting the service.

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  4. Configure the destination bucket to allow the required object write. AWS says uploading an object requires write permission on the bucket; consult the AWS S3 upload guide. Ask Browshot for its current, exact access requirements rather than applying a generic IAM policy as if it were a verified Browshot policy.

  5. Inspect the screenshot request result and confirm the hosted URL using Browshot’s documented response behavior. An invalid bucket or ACL configuration can cause an upload error.

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The core request shape is:

GET /api/v1/screenshot/create?url=https%3A%2F%2Fexample.com&instance_id=YOUR_INSTANCE_ID&hosting=s3&hosting_bucket=YOUR_BUCKET&hosting_file=example.png

This illustrates the documented endpoint and S3 options, not a complete authenticated request: supply authentication and any account-specific parameters exactly as Browshot currently instructs. The cited API documentation does not establish a current Browshot-specific permission policy, API-plan price or onboarding response time.

Choose the S3 object name and image size

  • hosting_file lets you specify the desired stored object name. Confirm with Browshot whether your chosen name should include a file extension appropriate to the requested image format.
  • Use hosting_width, hosting_height or hosting_scale when you want the hosted image to be a thumbnail rather than the default screenshot dimensions.
  • hosting_private and hosting_headers are documented options. Check Browshot’s current API reference for their accepted values and behavior before depending on them.

Troubleshoot failed S3 uploads

  • Invalid bucket or upload error: Check the bucket name and region/account details you supplied, then verify the required write access with Browshot. The Browshot API documentation specifically identifies invalid bucket details and ACL configuration as possible failure causes.
  • Access denied: AWS requires bucket write permission to upload an object. Confirm the bucket policy and any ACL-related setup against Browshot’s current instructions; do not guess at vendor-specific permissions.
  • No S3 option in Thumbalizr: That is consistent with Thumbalizr’s published Embed and legacy API pages, which do not document direct S3 hosting. Use Browshot’s documented hosting parameters for that workflow.
  • No hosted URL or unclear request state: Check the response fields and status documented for the API you actually called. Thumbalizr’s Embed API uses X-Thumbalizr-Status; do not interpret it as Browshot’s response format.

Or skip the browser setup: use ScreenshotNeo

For a direct screenshot API alternative, ScreenshotNeo returns a screenshot or PDF from one GET request. It is not an S3 upload workflow: use it when the goal is to obtain a clean screenshot through an API, and separately decide how to store that result.

For API parameters, response details and authentication, see the ScreenshotNeo documentation. Example cURL request:

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

ScreenshotNeo removes cookie banners, popups and chat widgets before the shot; bot checks, blank pages and failed loads are never billed. Its MCP server lets AI agents take screenshots. The free plan includes 1,000 screenshots a month with no card, and paid plans start at $5 for 3,000. Sign up for ScreenshotNeo’s free plan.

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Frequently Asked Questions

Does Thumbalizr’s Embed API support direct S3 upload?

Its published documentation does not list an S3 hosting parameter or bucket option.

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Can Browshot upload a screenshot to S3 without a local download?

Browshot says its service can upload the generated screenshot or thumbnail directly to the customer’s bucket.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.