- 2026-05-27
- by LethaldiranMX
- Trends
- 0 Comments
DeveloperAutomatically generates SEO-optimized English URL slugs from Japanese post titles using AI. BYOK (Bring Your Own Key).
NPC Slug Genius is built for Japanese WordPress sites that want clean, SEO-friendly English URL slugs without the manual translation work.
Most “slug translator” plugins translate Japanese to English literally. That gives you slugs like recruitment-information (from 採用情報) or company-introduction (from 会社案内), which are technically correct but unnatural for English-speaking search engines.
NPC Slug Genius takes a different approach: it uses AI to think about how an English-speaking searcher would actually look for the page, and generates slugs like careers and about-us. For Japanese-specific concepts that have no clean English equivalent (補助金 program names, etc.), it keeps the Romaji and translates only the surrounding words, producing slugs like apply-monozukuri-subsidy.
Key features:
- Automatic SEO-optimized English slug generation on post save
- Manual slug edits are respected and never overwritten
- Safe by default for existing sites: posts created before plugin activation are skipped, so existing URLs are never rewritten unless you explicitly opt in
- Configurable target post types
- Safe fallback: if the API key is missing or the API call fails, the post saves normally with no error
- BYOK (Bring Your Own Key): you control the API usage and cost
Currently supported AI providers:
- Anthropic Claude (Haiku model, lowest cost)
Coming soon:
- OpenAI ChatGPT (v1.1)
- Google Gemini (v1.2)
Getting started:
- Install and activate the plugin.
- Go to Settings > NPC Slug Genius.
- Get an Anthropic API key from console.anthropic.com and paste it in.
- Choose which post types should get automatic slug generation (default: posts and pages).
- Create a post with a Japanese title – the slug will be automatically generated when you save.
External services
This plugin connects to the Anthropic Claude API to generate SEO-optimized English URL slugs from Japanese post titles.
What the service is and what it is used for:
Anthropic Claude is a large language model API. This plugin uses the Claude Haiku model to translate Japanese post titles into natural English URL slugs.
What data is sent and when:
The plugin sends the post title (text only) to the Anthropic Claude API. The request is made only when a post is saved AND a valid Anthropic API key is configured in the plugin settings. No post content, user data, IP address, or site metadata is sent by this plugin. If no API key is configured, no request is made.
This service is provided by Anthropic, PBC. By obtaining an Anthropic API key and using this plugin, you agree to Anthropic’s terms.
- Anthropic Consumer Terms of Service: https://www.anthropic.com/legal/consumer-terms
- Anthropic Commercial Terms of Service: https://www.anthropic.com/legal/commercial-terms
- Anthropic Usage Policy: https://www.anthropic.com/legal/aup
- Anthropic Privacy Policy: https://www.anthropic.com/legal/privacy
Privacy Policy
When a post is saved, this plugin sends the post title to the AI provider you configured (currently Anthropic Claude). The post title is processed to generate an English slug and is not stored by this plugin beyond the resulting slug.
No personally identifiable information is collected or transmitted by this plugin.
