ZenCoupon AI Assistant

ZenCoupon AI Assistant is a WordPress and WooCommerce plugin that helps store owners create, update, and manage coupons using simple AI-powered commands.

Instead of manually configuring every WooCommerce coupon field, store owners can type a plain-language instruction such as “Create a 20% coupon for Eid sale with minimum spend 1000”, and the plugin converts that command into WooCommerce-ready coupon data.

The plugin supports Groq, OpenAI/GPT, and Google Gemini, giving users flexibility to choose their preferred AI provider for coupon generation.

Key Features

• Create WooCommerce coupons using natural language commands
• Update existing coupons with AI-powered instructions
• Choose between Groq, OpenAI/GPT, and Google Gemini
• Select from curated AI models or enter a custom model name
• Save and manage provider API keys from the admin panel
• Test AI provider connection from plugin settings
• Generate coupon rules automatically
• View generated coupons from the admin dashboard
• Delete and manage coupons easily
• View recent activity inside the plugin panel
• Docs and support admin page
• Support form powered by wp_mail()
• WooCommerce HPOS compatibility
• REST API and JSON-RPC 2.0 style MCP endpoint for integration

Coupon Options Supported

ZenCoupon AI Assistant can create and manage many WooCommerce coupon settings, including:

• Coupon code
• Percentage discount
• Fixed cart discount
• Fixed product discount
• Expiry date
• Minimum spend
• Maximum spend
• Usage limit
• Usage limit per user
• Individual use only
• Free shipping
• Exclude sale items
• Email restrictions
• Product IDs
• Excluded product IDs
• Product categories
• Excluded product categories

Supported AI Providers

ZenCoupon AI Assistant supports three AI providers.

Groq AI

Groq is useful for fast responses and low-latency coupon command processing.

Recommended model:

• llama-3.1-8b-instant

OpenAI/GPT

OpenAI/GPT is useful for high-quality structured coupon output.

Default model:

• gpt-5.5

Other supported options:

• gpt-5.4-mini
• gpt-5.4-nano

Google Gemini

Google Gemini is useful for fast structured JSON responses.

Default model:

• gemini-2.5-flash

Requirements

• WordPress 5.0 or higher
• PHP 7.4 or higher
• WooCommerce 3.0 or higher
• Active API key from Groq, OpenAI, or Google Gemini

External Services

This plugin connects to external AI APIs to process natural language coupon commands and generate WooCommerce coupon configurations.

The plugin only sends the prompt entered by the admin user, such as coupon requirements, discount rules, expiry instructions, or campaign details. No customer personal data, order data, store financial data, or payment data is intentionally transmitted by the plugin.

Groq AI

Service provider: Groq, Inc.

Endpoint used:

https://api.groq.com/openai/v1/chat/completions

Terms of Service:

https://groq.com/terms-of-service/

Privacy Policy:

https://groq.com/privacy-policy/

OpenAI

Service provider: OpenAI, L.L.C.

Endpoint used:

https://api.openai.com/v1/responses

Terms of Use:

https://openai.com/policies/terms-of-use/

Privacy Policy:

https://openai.com/policies/privacy-policy/

Google Gemini

Service provider: Google LLC.

Endpoint used:

https://generativelanguage.googleapis.com/v1beta/models/

Terms of Service:

https://policies.google.com/terms

Privacy Policy:

https://policies.google.com/privacy

Configuration

1. Get an API Key

Before using the plugin, you need an API key from at least one supported AI provider.

For Groq AI:

1. Visit https://console.groq.com
2. Create an account or sign in.
3. Generate an API key.
4. Copy the API key.

For OpenAI:

1. Visit https://platform.openai.com
2. Create an account or sign in.
3. Generate an API key.
4. Copy the API key.

For Google Gemini:

1. Visit https://aistudio.google.com
2. Create an account or sign in.
3. Generate an API key.
4. Copy the API key.

2. Configure the Plugin

1. In your WordPress admin dashboard, go to ZenCoupon AI.
2. Select your AI provider.
3. Enter your provider API key.
4. Choose a model or enter a custom model name.
5. Click Save Settings.
6. Use the Test Connection button to check your provider connection.

Usage

Creating Coupons with AI

1. Go to WordPress Dashboard > ZenCoupon AI.
2. Open the command console.
3. Type your coupon instruction in natural language.
4. Click the generate button.
5. Review the generated coupon details.
6. Create the coupon.

Example prompts:

• Create a 15% discount coupon for Summer Sale.
• Create BLACKFRIDAY coupon with 30% discount.
• Create a fixed 500 discount coupon with minimum spend 3000.
• Create a free shipping coupon for VIP customers.
• Update recent coupon to 20% discount.
• Create a coupon for category ID 12, expires on 2026-12-31.

Via REST API

The plugin provides a JSON-RPC 2.0 compatible REST endpoint at:

POST /wp-json/zencoupon/v1/mcp

Creating a Coupon

`bash

curl -X POST https://yoursite.com/wp-json/zencoupon/v1/mcp \ -H “Content-Type: application/json” \ -d ‘{ “jsonrpc”: “2.0”, “id”: 1, “method”: “create_coupon”, “params”: { “code”: “SAVE20”, “amount”: 20, “discount_type”: “percent”, “expiry_date”: “2026-12-31” } }’ `

Listing Coupons

`bash

curl -X POST https://yoursite.com/wp-json/zencoupon/v1/mcp \ -H “Content-Type: application/json” \ -d ‘{ “jsonrpc”: “2.0”, “id”: 2, “method”: “list_coupons” }’ `

Listing AI-Generated Coupons

`bash

curl -X POST https://yoursite.com/wp-json/zencoupon/v1/mcp \ -H “Content-Type: application/json” \ -d ‘{ “jsonrpc”: “2.0”, “id”: 3, “method”: “list_generated_coupons” }’ `

Deleting a Coupon

`bash

curl -X POST https://yoursite.com/wp-json/zencoupon/v1/mcp \ -H “Content-Type: application/json” \ -d ‘{ “jsonrpc”: “2.0”, “id”: 4, “method”: “delete_coupon”, “params”: { “coupon_id”: 123 } }’ `

Coupon Parameters

Parameter Type Required Description

code string Yes Unique coupon code

amount float Yes Discount amount

discount_type string Yes percent, fixed_cart, or fixed_product

expiry_date string No Date in YYYY-MM-DD format

minimum_amount float No Minimum cart total

maximum_amount float No Maximum cart total

exclude_sale_items boolean No Exclude sale items from discount

individual_use boolean No Allow the coupon to be used individually only

usage_limit int No Total number of times the coupon can be used

usage_limit_per_user int No Number of times each customer can use the coupon

free_shipping boolean No Grant free shipping

email_restrictions array No Allowed customer emails

product_ids array No Specific product IDs

excluded_product_ids array No Excluded product IDs

product_categories array No Specific category IDs

excluded_product_categories array No Excluded category IDs

API Response Examples

Success Response

`json

{ “jsonrpc”: “2.0”, “id”: 1, “result”: { “coupon_id”: 123, “code”: “SAVE20”, “amount”: 20, “discount_type”: “percent”, “message”: “Coupon created successfully.” } } `

Error Response

`json

{ “jsonrpc”: “2.0”, “id”: 1, “error”: { “code”: -32600, “message”: “Coupon code is required.” } } `

Security

ZenCoupon AI Assistant follows standard WordPress security practices.

• Direct file access is blocked with ABSPATH checks.
• Admin actions are protected with nonce verification.
• Capability checks are used for coupon and WooCommerce management.
• Input is sanitized before processing.
• REST API access is permission protected.
• API keys are stored in WordPress options.
• Support form submissions are sanitized and nonce protected.
• HTTPS is recommended for all API calls.

Troubleshooting

Missing API Key Error

This error usually means the selected AI provider does not have a saved API key.

Please check that you have:

• Generated an API key from your selected provider
• Entered the API key in the plugin settings
• Saved the settings successfully

API Returned HTTP 429 Error

This means the AI provider is rate-limiting your requests.

Possible solutions:

• Wait a few minutes and try again
• Switch to another AI provider
• Check your provider usage limit
• Upgrade your API plan if needed

Model Not Found Error

This usually means the selected model name is not available or has been deprecated.

Possible solutions:

• Choose a recommended model from the dropdown
• Enter a currently supported custom model name
• Switch to another AI provider

Invalid JSON Response Error

This means the AI provider returned an unexpected response format.

Possible solutions:

• Try the same prompt again
• Use a clearer coupon command
• Check your API key
• Try another AI provider

Performance Tips

• Use Groq for faster responses.
• Use OpenAI/GPT for high-quality structured output.
• Use Gemini Flash models for fast structured JSON responses.
• Use clear prompts for more accurate coupon generation.
• Keep temperature low for more consistent results.
• Monitor provider rate limits when generating many coupons.

Contributing

Contributions are welcome. Please fork the repository and submit a pull request.