Sole Engine

Sole Engine is a shared AI backbone for WordPress plugins. Install one plugin, configure it once, and every other Sole-aware plugin on the site gains access to language-model tasks and semantic search without each one reinventing API keys, quotas, and error handling.

What it provides, through a small PHP interface:

• Language-model calls — chat, translation, summarization, and other prompted tasks.
• Semantic search and similarity — embeddings and vector queries over the site's own content.
• Automatic content indexing — the content index is built and kept current without each plugin doing it separately.

Built for WordPress because that is where the real webmasters work. Paid by credits through sole_account, so the price is proportional to actual use and the business can feed itself from the first paying site.

Status

In build. The engine loop, credit accounting, and the shared plugin library work. The account dashboard and payment flow are next. Not yet open for signups.

✎ 2026-04-23