Code Engine – PHP Snippets, AI Functions & Automation for WordPress vs Fast RAGbot

Code Engine is a snippets manager that doesn’t stop at snippets. Yes, it runs your PHP and JavaScript exactly where and when you want: frontend, backend, on a schedule, or inside your content. But its real magic is what happens after you write a function: the same little piece of code instantly becomes a tool your AI chatbots can call, a step you can drag into a visual workflow, and an endpoint the outside world can trigger. One function, three superpowers. Most “code snippets” plugins stop at a textarea and a toggle. Code Engine treats your functions as first-class building blocks for the whole Meow Apps ecosystem, and for anything that can speak REST. Think out of the box, let your creativity flow, because the possibilities really are endless! ✨ For more, check the official website and come say hi on the Discord. Quick Intro Hello! ☀️ I built Code Engine because I was tired of pasting mystery snippets into functions.php and praying. I wanted a place where small bits of code are organized, safe, AI-assisted, and reusable everywhere. Here’s the idea. You write a function (or let the AI write it for you from a plain-English description). That function immediately shows up in three places: AI Engine: your chatbots and MCP clients (Claude, ChatGPT, Claude Code) can call it as a tool, with real arguments. Ask “how many orders shipped today?” and your chatbot runs your function to answer. Workflow Engine: your function appears in the step picker as its very own block. Drag it onto the canvas, wire it between an AI step and a Slack step, done. No glue code. REST / External tools: give it a secure endpoint and a token, then trigger it from Make.com, n8n, Zapier, a cron job, or a webhook. You never wrote an “integration.” You just wrote a function. Code Engine did the rest. 🤝 Core Modules 🧩 Snippets Manager Backend, Frontend, Persistent, Scheduled, Functions, and in-content (PHP/JS) snippets, all in one clean dashboard with tags, search, scope filters, and priorities. 🪄 AI-Assisted Coding Describe what you want in plain English and let AI Engine write the snippet: code, name, arguments, and scope included. Refine existing code or implement it straight from your comments. 🤖 Functions as AI Tools Every Function snippet becomes a function-calling tool and an MCP tool, so your AI Engine chatbots (and external AI agents) can actually do things on your site, not just talk. 🔀 Functions as Workflow Steps Workflow Engine surfaces each of your functions as its own draggable step. Your custom logic becomes a first-class citizen on the automation canvas. 🌐 External Access (REST) Expose any runnable snippet through a secured REST endpoint with a bearer token. Perfect for Make.com, n8n, webhooks, and scheduled external jobs. 🛡️ Safe Mode A snippet that throws a fatal error is automatically caught and disabled before it can take your site down. Code with confidence. ⏰ Scheduling Run a snippet daily at a chosen time via WP-Cron (reports, cleanups, syncs) without touching the server crontab. 🧱 Code Blocks & Shortcodes (Pro) Drop PHP or JS straight into a post or page with a Gutenberg block or the [code-engine] shortcode, with safety guards. 🧩 Snippets, the way they should be Code Engine organizes your code by scope, so each snippet runs exactly where it belongs: Persistent: runs everywhere (frontend and backend). Your everyday “add this to functions.php” code, but managed. Frontend: runs only on the public site. Backend: runs only in the admin. Function: a named, callable function with typed arguments and defaults. This is the reusable building block (see below). Scheduled: runs on a WP-Cron schedule, at the hour and minute you pick. Content (PHP / JS): runs inside a specific post or page, via a Gutenberg Code Block or the [code-engine] shortcode (Pro). Everything is searchable, taggable, sortable by priority, and importable/exportable. The CodeMirror editor gives you proper syntax highlighting and keyboard shortcuts (Cmd+S to save, Cmd+Enter to run). A nikic/php-parser pass validates your PHP before it ever runs. 🪄 Let AI write it for you Don’t feel like writing the boilerplate? Describe the snippet in plain language and Code Engine, powered by AI Engine, generates the whole thing: the code, a sensible name, a description, the right scope, and, for functions, the argument list with names, types, and defaults. Already have code? Ask the AI to modify it from a prompt, or write a few comments describing what you want and let it fill in the implementation. It’s pair programming, right inside your dashboard. ✨ The big idea: write once, use everywhere This is what makes Code Engine different. A Function snippet is not just code you call from other code. It’s a reusable capability that the rest of your stack can plug into. The moment you save it, the same function is available in three places at once: 1. As an AI tool, for chatbots and AI agents With AI Engine active, your functions are exposed through function calling and over MCP (Model Context Protocol). Your on-site chatbot can run them mid-conversation, and external AI agents (Claude, Claude Code, ChatGPT, OpenClaw) can call them too. Want a chatbot that checks stock, looks up a booking, or kicks off a process? Write the function; the chatbot gains the skill. 2. As a workflow step, for automation With Workflow Engine, every active function shows up in the Add-step picker as its own block, named after your snippet, with one input per argument. Drag it onto the canvas and wire it between other steps: an AI step that summarizes, your function that saves, a Social Engine step that posts. There’s also a generic “Execute snippet (by ID / by name)” step when you want to call one dynamically. You never write integration code; your function is the integration. 3. As a REST endpoint, for the outside world Give a snippet a custom endpoint name and a bearer token, and it’s instantly callable from anywhere: POST /wp-json/code-engine/v1/snippets-endpoint/your-endpoint Pass arguments as JSON in the body, secure it with a token, and trigger it from Make.com, n8n, Zapier, GitHub Actions, or a humble cron job. Automation without a middleware bill. 🛡️ Safe by default Running arbitrary code is powerful, so Code Engine takes safety seriously: Safe Mode catches fatal errors and auto-disables the offending snippet, so a typo never white-screens your site. REST whitelisting means global snippets only run on trusted REST routes by default, so you choose what to open up. Per-snippet tokens secure your external endpoints. Validation with a real PHP parser before code is saved. For developers who want fewer guardrails, there’s a “Bypass REST Security” option and filters (mwcode_rest_authorized, mwcode_rest_whitelist) to tailor exactly what’s allowed. Works beautifully with the Meow Apps family Code Engine is one engine in a connected set, each one useful alone, magical together: AI Engine: chatbots, content generation, and MCP. Turns your functions into AI tools. Workflow Engine: visual automation. Turns your functions into draggable steps. SEO Engine: smart, lightweight AI SEO. Social Engine: schedule and automate social posts. Why Code Engine? Reusable, not throwaway Other snippet plugins give you a place to paste code. Code Engine gives you a place to build capabilities that your AI, your workflows, and your external tools can all use. Native to WordPress Clean, fast, and built the WordPress way. No clunky external dashboards, no bloat. AI-native Write snippets with AI, expose them to AI. The whole loop lives in your wp-admin. Developer friendly REST API, MCP tools, function calling, scheduling, import/export, and plenty of filters to hook into. Cared for Part of the Meow Apps family, with regular updates and a real human behind it. 💕

Fast RAGbot is an intelligent chatbot that uses Retrieval-Augmented Generation (RAG) with support for multiple AI providers to provide accurate answers based exclusively on your website content. Key Features: Multi-LLM Support: Choose between Gemini, OpenAI (ChatGPT), or Claude Multi-Domain Indexing: Index up to 3 different domains Document Upload: Bulk upload PDF, DOCX, PPTX, XLSX, TXT, XML, CSV Conversation Memory: Maintains last 5 Q&A turns per session Smart Follow-ups: Suggests questions when answer not found Widget Customization: Custom colors, logo, position, theme CSS Pre-chat Form: Optional name/email collection Chat Logs: Full conversation logging with CSV export Shortcode Support: Embed chat anywhere with [ragbot_chat] Grounded Responses: Answers only from your content – no hallucinations Source Citations: Provides URLs of source pages for transparency Mobile Responsive: Works perfectly on all devices Security First: Rate limiting, nonces, and proper sanitization How It Works: Crawls and indexes your website content Creates semantic embeddings using Google Gemini Retrieves relevant content based on user questions Generates contextual answers with source citations Displays responses in a floating chat widget Perfect For: Customer support automation FAQ assistance Product information queries Company information lookup Documentation assistance External Services & Data Usage This plugin connects to external AI services to provide chatbot functionality. Below is a detailed explanation of what data is transmitted and how it is used. External Services Used Google Gemini API (https://ai.google.dev/) * Used for: Text embeddings and AI text generation * Data sent: User questions, website content chunks, conversation history * Privacy Policy: https://policies.google.com/privacy * Terms of Service: https://policies.google.com/terms OpenAI API (https://openai.com/) – Optional * Used for: Text embeddings and AI text generation (when selected as active model) * Data sent: User questions, website content chunks, conversation history * Privacy Policy: https://openai.com/privacy/ * Terms of Service: https://openai.com/terms/ Claude API by Anthropic (https://anthropic.com/) – Optional * Used for: Text embeddings and AI text generation (when selected as active model) * Data sent: User questions, website content chunks, conversation history * Privacy Policy: https://www.anthropic.com/privacy * Terms of Service: https://www.anthropic.com/legal/terms What Data Is Transmitted User’s Question: The text message submitted by the website visitor Retrieved Document Chunks: Relevant excerpts from your indexed website content (typically 5-8 chunks of ~1000 characters each) Conversation History: Last 5 question-answer pairs from the current session Model Parameters: Temperature (0.1), max tokens (1000), and other generation settings Data Usage & Storage Data is transmitted only for generating responses to user questions No data is stored or used for training by external AI providers (per their API terms) Data transmission occurs in real-time and is not cached by the plugin on external servers All API communications use HTTPS encryption Local WordPress Storage The plugin stores the following data in your WordPress database: Options (wp_options table): * ragbot_settings – Plugin configuration including API keys, widget settings, and preferences Custom Tables: * wp_rag_docs – Indexed website pages and uploaded documents * wp_rag_chunks – Text chunks created from indexed content * wp_rag_embeddings – Vector embeddings for semantic search * wp_rag_sources – Content source configurations (domains, settings) * wp_rag_logs – Chat conversation logs (optional, includes user name/email if pre-chat form enabled) * wp_rag_url_queue – Queue of URLs pending indexing Session Data: * PHP sessions store temporary conversation history (cleared when session ends) * Browser sessionStorage stores chat UI state (cleared when tab closes) Data Control & Privacy User Control: * Delete API keys anytime from Settings > Fast RAGbot > Models tab * Clear all indexed content using “Clear Index” button * Reset plugin settings to defaults * Export or delete chat logs from Settings > Fast RAGbot > Chat Logs tab Data Deletion: * Deactivating the plugin preserves your data * Uninstalling the plugin removes all database tables and options * Use “Clear Index” to remove indexed content without uninstalling Privacy Compliance: * No data is shared with third parties except your chosen AI provider * Chat logs are optional and stored locally in your database * Pre-chat form (name/email collection) is optional and disabled by default * All user inputs are sanitized and validated * Rate limiting prevents abuse (10 requests per 60 seconds per IP) Developer Privacy Policy For questions about data handling, please review: * Your chosen AI provider’s privacy policy (links above) * Your own website’s privacy policy (you are the data controller) * WordPress.org privacy guidelines: https://wordpress.org/about/privacy/ Privacy Policy This plugin acts as a data processor, sending user questions to your chosen AI provider. You (the site owner) are the data controller and responsible for: * Disclosing AI service usage in your privacy policy * Obtaining user consent where required by law (GDPR, CCPA, etc.) * Ensuring compliance with local privacy regulations The plugin stores chat logs locally in your database. If you enable the pre-chat form, user names and emails are stored and should be disclosed in your privacy policy. Support For support, please visit the plugin’s support forum or contact the developer. Credits Supports embeddings and text generation using Google Gemini, OpenAI, or Claude. Built with WordPress coding standards Follows accessibility best practices