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+=== Peptide Search AI ===
+Contributors: terence
+Tags: peptide, database, search, AI, science, research, openrouter
+Requires at least: 5.8
+Tested up to: 6.7
+Requires PHP: 7.4
+Stable tag: 4.1.0
+License: GPLv2 or later
+
+Searchable peptide database with AI-powered auto-population. Visitors search for peptides — if one doesn't exist, it's automatically validated and created with comprehensive AI-generated scientific content in the background.
+
+== Description ==
+
+Peptide Search AI turns your WordPress site into an intelligent, self-growing peptide database.
+
+**How it works:**
+
+1. Visitors search for a peptide using the search form.
+2. If found, results appear instantly with molecular data.
+3. If not found, the plugin automatically validates the name using a lightweight AI call, creates a placeholder, and queues comprehensive content generation in the background via WP-Cron.
+4. The visitor sees a "currently being added" message and can check back shortly.
+5. Generated entries include: amino acid sequence, molecular weight/formula, mechanism of action, research applications, safety profile, dosage info, and references.
+6. PubChem cross-referencing validates molecular data when available.
+
+**Features:**
+
+* AJAX search with instant results
+* Automatic peptide name validation (lightweight AI check before full generation)
+* Background content generation via WP-Cron (non-blocking)
+* Custom Post Type with structured scientific fields
+* AI content generation via OpenRouter — access hundreds of models (Gemini, Llama, DeepSeek, Mistral, Qwen, and more)
+* Separate model configuration for validation (cheap/fast) and generation (full)
+* PubChem PUG REST API integration for verified molecular data
+* Rate limiting (10 requests/IP/hour) to prevent abuse
+* Transient-based caching for validation and PubChem lookups
+* Admin settings for API key, models, auto-publish behavior, PubChem toggle
+* REST API endpoint for headless/external access (read-only)
+* Conditional asset loading (only on pages with the shortcode or peptide singles)
+* Source badges (AI-Generated / PubChem Verified / Manually Curated)
+* Mobile-responsive design
+
+== Installation ==
+
+1. Upload the `peptide-search-ai` folder to `/wp-content/plugins/`
+2. Activate the plugin through the Plugins menu
+3. Go to Settings > Peptide Search AI
+4. Enter your OpenRouter API key (get one at openrouter.ai/settings/keys)
+5. Optionally set separate models for validation and generation
+6. Configure auto-publish and PubChem settings
+7. Add `[peptide_search]` to any page or post
+
+== Shortcode ==
+
+`[peptide_search]` — Displays the peptide search form.
+
+Optional attributes:
+* `placeholder` — Custom placeholder text for the search input.
+
+Example: `[peptide_search placeholder="Search our peptide database..."]`
+
+== REST API ==
+
+Search endpoint: `GET /wp-json/peptides/v1/search?q=BPC-157`
+
+Returns JSON with matching published peptides, their molecular data, and permalink URLs. This endpoint is read-only and does not trigger auto-generation.
+