ATaaS
What it is
ATaaS is an AI-powered REST API and web service that generates alternative text for images. Requests can include page context, such as a product name, category, or description, to tailor text for the image. The service accepts JPEG, PNG, WebP, AVIF, GIF, BMP, and TIFF files. Its homepage says it supports more than 120 languages, while listed plans specify 10 languages for Starter and 50+ for Pro. The homepage reports an average response time of 750ms, with most images taking under 800ms. Generated text follows WCAG 2.1 Success Criterion 1.1.1 and is optimized for screen readers. Images are processed in memory, then discarded without storage, logging, or sharing. A free plan includes 250 images monthly and REST API access. Paid plans start at $9/mo; Starter and Pro are billed yearly at $79 and $249.
For and against
For
- REST API and web access
- Supports seven listed image formats
- Page context can tailor alt text
- Images are not stored or shared
- Free plan includes 250 images monthly
Against
- Monthly image limits apply
- Starter and Pro have specified language limits
- Over quota returns HTTP 403
- Paid plans require payment
The verdict
ATaaS combines API access, contextual generation, broad format support, and stated accessibility handling. Its free allowance provides an entry point, while higher plans add larger quotas and processing features.
Who it suits
ATaaS suits developers and teams generating alt text through an API or web interface, including e-commerce teams using product context. It also fits users needing multiple image formats and broad language support.
Plans and prices
Free
250 images/month · REST API access · 1 API key · Community support
Read 8 Oct 2026 · alttextservice.com
Starter
1,000 images/month · Page context · 10 languages · 1 API key
Read 8 Oct 2026 · alttextservice.com
Pro
5,000 images/month · 60 req/min · 50+ languages · Bulk processing up to 50 images/call
Read 8 Oct 2026 · alttextservice.com
On the record
- Accessibility
- The FAQ says generated alt text follows WCAG 2.1 Success Criterion 1.1.1 and is optimized for screen readers.alttextservice.com · read 8 Oct 2026
- Billing
- The FAQ says usage resets on the first of each month and users can upgrade, downgrade, or cancel from the dashboard.alttextservice.com · read 8 Oct 2026
- Context
- Requests can include page context to tailor alt text to the content.alttextservice.com · read 8 Oct 2026
- Data handling
- The FAQ says images are processed in memory, discarded immediately afterward, and not stored, logged, or shared.alttextservice.com · read 8 Oct 2026
- Formats
- The site lists JPEG, PNG, WebP, AVIF, GIF, BMP, and TIFF as supported image formats.alttextservice.com · read 8 Oct 2026
- Languages
- The homepage says the service supports more than 120 languages.alttextservice.com · read 8 Oct 2026
- Purpose
- ATaaS is an AI-powered REST API that generates alt text for images.alttextservice.com · read 8 Oct 2026
- Quota behavior
- The FAQ says exceeding the monthly image limit returns HTTP 403 until credits reset on the first of the next month.alttextservice.com · read 8 Oct 2026
- Speed
- The homepage reports an average response time of 750ms and says most images take under 800ms.alttextservice.com · read 8 Oct 2026
- Support
- The Free plan includes community support, Starter includes email support, and Pro includes priority support.alttextservice.com · read 8 Oct 2026
- Usage alerts
- The FAQ says users receive an email when fewer than 20% of their images remain.alttextservice.com · read 8 Oct 2026
- Use case
- The FAQ describes using page context such as a product name, category, or description to generate alt text for e-commerce product images.alttextservice.com · read 8 Oct 2026
