AltoGraph – AI Alt Text Generator & SEO Meta Descriptions
The AltoGraph settings screen with the external-service notice and automation toggles.
No API key. No account. No setup. Unlike most AI tools, which make you sign up for OpenAI or Anthropic and paste in your own paid API key, AltoGraph runs the AI on our hosted service. Free for 25 items every month.
Your Media library gets an Alt text column, so you can see at a glance which images have none, and a Generate button on each one that does not. One click writes alt text from the picture itself. There is a bulk action for a backlog, and a Generate button in the Attachment details panel too.
Nothing is sent anywhere until you ask for it. If you would rather not click, you can switch on automatic alt text for new uploads, and automatic SEO meta descriptions with JSON-LD structured data when you save a post, in Settings. Both are off until you turn them on. AltoGraph never overwrites alt text you have written yourself.
Unlike most tools, you don’t need your own AI API key. The AI runs on the AltoGraph service, so there’s nothing to configure. The free plan covers 25 items per month; AltoGraph Pro removes the monthly limit (subject to fair use).
What it does
- Generates descriptive alt text for images from the image itself (better accessibility and image SEO).
- Writes concise, on-topic meta descriptions for posts and pages.
- Adds Article JSON-LD structured data for richer search results.
- Backfills alt text for images that are currently missing it.
- Never overwrites alt text you’ve written yourself.
Privacy-friendly by design
Automation is off until you switch it on, and AltoGraph only ever sends what it needs to do the job (see the External Services section below). A non-identifying site ID (a hash of your site URL) is used for usage counting; no personal data is required.
External services
This plugin connects to the AltoGraph API to generate alt text and metadata. It is required for the plugin’s core features.
- What is sent and when:
- Alt text: the plugin sends the image URL and filename to the AltoGraph API on each of these actions:
- when you upload an image with automatic alt text switched on
- when you run the backfill action
- when you use the Generate button in the Media library Alt text column
- when you use the Alt text bulk action in the Media library
- when you use the Generate button in the Attachment details panel
- Meta descriptions: the plugin sends the post title and post content when you save a post with automatic meta descriptions switched on.
- Usage counting: a non-identifying site ID (a hash of your site URL) and the plugin version accompany each request. Neither identifies you. Whether this site’s review prompt was shown, snoozed, dismissed or clicked is also sent, so we can tell whether that prompt is working. It records the site, not the individual user, and says nothing about what you did on WordPress.org afterwards.
- Where it goes: the AltoGraph API (default
https://api.thereallyusefulappcompany.com), which uses Anthropic as an AI subprocessor to generate the text. - Service terms and privacy:
- AltoGraph Terms: https://thereallyusefulappcompany.com/altograph/terms
- AltoGraph Privacy Policy: https://thereallyusefulappcompany.com/altograph/privacy
- Anthropic Privacy Policy: https://www.anthropic.com/legal/privacy
Nothing is sent until you use one of the Generate buttons or the bulk action, run the backfill, or upload an image or save a post with automation switched on.