Unstale – AI Content Refresh, Rewrite & Republish for SEO

Old posts lose rankings. Unstale refreshes them with real AI, through the provider you already connected to WordPress:

• Real AI in the free plugin. Analysis, live web research, fact-checking of numbers and prices, rewrite, SEO metas, JSON-LD when no SEO plugin already emits it, key-takeaway callouts.
• No credits, no quota. Unstale sells you nothing per refresh. You pay your AI provider directly, at its own rates. Unlimited refreshes.
• Your content never touches our servers. Your WordPress talks to the AI provider you connected, directly. We never see your content or your credentials.
• Nothing to configure twice. Since WordPress 7.0, providers and credentials are managed by WordPress itself in Settings > Connectors. Unstale uses whatever you set up there, so no API key is ever stored by this plugin.
• Review queue with a side-by-side diff. Nothing is published without your approval (an optional full-auto mode exists). Native WordPress revisions give you one-click rollback when revisions are enabled on your site.
• Internal linking. Each refresh adds up to 10 relevant internal links with natural, varied anchors, one link per target page.
• SEO-safe republication. Optional publish-date bump with position control, randomized timing, allowed days and time windows. Stable dated permalinks via the %unstale_year%, %unstale_monthnum% and %unstale_day% permalink tags.
• Full journal. Every step, token count and cost is logged per article.
• Automation-ready. REST API (unstale/v1) and WP-CLI (wp unstale refresh) included.

Two refresh levels are free: Minimal (typo fixes, fact-check, internal links, date bump) and Balanced (everything in Minimal plus SEO essentials: optimized metas, JSON-LD, callouts, readability). The Strong and Maximal levels, scheduled automation and bulk rules are part of Unstale Pro.

Unstale is developed by Web & SEO Ltd, the company that owns and operates unstale.ai.

External services

This plugin relies on one external service.

The Unstale model catalog (unstale.ai)

What it is: a public, static JSON file at https://unstale.ai/api/v1/models.json listing the supported model ids, their prices per million tokens and their notes. It exists so that a new provider model becomes available in your settings without waiting for a plugin update, and so the plugin can show you a cost estimate before each refresh.

What is sent, and when: nothing but the HTTP request itself. It is an unauthenticated GET, fired by a single scheduled task once every 24 hours. No content, no credentials, no personal data, no site identifier is transmitted, and there is no manual refresh button that could trigger it more often. If the request fails the plugin keeps using the catalog bundled in the plugin files.

This service is provided by Unstale: Terms, Privacy

A note on AI providers

Unstale does not contact Anthropic, OpenAI or Google itself and declares none of them as its own external service. Prompts are handed to the WordPress AI Client, which routes them to the provider you connected in Settings > Connectors. That provider, its terms and its billing are the relationship between you and them, set up in WordPress and not in this plugin.