Dropndot AI Content for Custom Fields is a powerful WordPress plugin that brings AI-powered content generation directly to your custom fields. Generate high-quality content for any custom field with a single click, using your own OpenAI or Google Gemini API key, or the WordPress AI Client and whiche
PricingFree downloadThe WordPress.org download is free. Pro versions, add-ons or external services may cost extra.
CompatibilityRequires WordPress 6.0 and PHP 7.4.
SourceWordPress plugins · Oct 19, 2026
01 / Source details
About this tool.
Dropndot AI Content for Custom Fields is a powerful WordPress plugin that brings AI-powered content generation directly to your custom fields. Generate high-quality content for any custom field with a single click, using your own OpenAI or Google Gemini API key, or the WordPress AI Client and whichever AI provider you have connected under Settings → Connectors (OpenAI, Google Gemini, Anthropic, and others).
Key Features
Smart Field Detection : Automatically detects all custom fields (ACF, Meta Box, Pods, standard WordPress fields, Yoast SEO, Rank Math)
One-Click Generation : Generate content for any field with a single click
Intelligent Content Detection : Automatically detects appropriate content type based on field name
Custom Prompts with Limits : Set custom AI prompts for each field with explicit character/word limits
Precise Length Control : Dedicated character and word limit fields ensure AI respects your requirements
Complete Sentence Truncation : Smart truncation at sentence boundaries, never cuts off mid-word
Advanced Internal Linker : AI-powered keyword extraction and smart post matching for internal linking
AI Chat Assistant : Chat with AI about your article content for suggestions and improvements
Preview & Edit : Review AI-generated content before saving
Two Ways to Connect : Use your own encrypted OpenAI / Google Gemini API key, or the WordPress AI Client (Settings → Connectors)
Model Selection : Choose the OpenAI and Gemini model; the OpenAI list is filtered to the models your key can reach
Usage Guardrails : Per-user rate limiting and site-wide daily request and token quotas
Response Cache : Identical generations are served from a short-lived cache (“Regenerate” always bypasses it)
Monitoring : Today’s usage and a log of the 100 most recent AI calls
Format Support : Plain text, WYSIWYG, JSON, lists, and paragraphs
Professional UI : Clean, modern WordPress admin interface
How It Works
01Install and activate the plugin
02Either enter your OpenAI or Google Gemini API key in the plugin settings, or connect an AI provider under Settings → Connectors (WordPress 7.0+)
03Select which custom fields to enable
04Set character/word limits for each field (optional)
05Optionally set custom prompts for each field
06Generate content with one click while editing posts
Supported Field Types
Advanced Custom Fields (ACF)
Meta Box
Pods
Standard WordPress custom fields
Yoast SEO fields
Rank Math fields
WYSIWYG/rich text fields
Plain text fields
JSON fields
Use Cases
Generate SEO meta descriptions (with precise character limits)
Create article summaries
Generate FAQs and quiz questions
Create internal link suggestions
Generate subtitles and taglines
Chat with AI about content improvements
Generate social media snippets with character limits
Character & Word Limits
The plugin features explicit character and word limit fields:
Character Limits : Perfect for meta descriptions, Twitter posts, etc.
Word Limits : Ideal for summaries, excerpts, and article sections
Smart Enforcement : AI is instructed to respect limits during generation
Safety Net : Intelligent post-processing ensures limits are never exceeded
Complete Sentences : Truncation always happens at sentence boundaries
Per-Field Control : Set different limits for each custom field
Token Optimization
The plugin includes advanced token management:
Adaptive Content Truncation : Sends less article content when generating short outputs
Concise System Messages : Optimized AI instructions to save tokens
Dynamic Limits : Adjusts content based on character/word requirements
Configurable Ceilings : Max output tokens, retry attempts and continuations are adjustable in settings
External services
This plugin sends content to an AI provider to generate text. No request is ever made until a site administrator configures a provider (an API key in the plugin settings, or a provider under Settings → Connectors) and a permitted user actively triggers a feature. The plugin does not collect analytics and does not track visitors or site users.
When an API key is saved in the plugin settings, requests go directly from your server to the selected provider (OpenAI or Google Gemini). When no key is saved, requests go through the WordPress AI Client to the provider connected under Settings → Connectors.
What is sent for content generation, internal links and chat: the post title and post content of the entry being edited (truncated before sending), the custom prompt configured for the field, the chat messages you type, the recent chat history of the current conversation, and your WordPress display name so the assistant can address you by name.
When it is sent: only when a logged-in, permitted user clicks a “Generate” or “Regenerate” button, requests internal links, or sends a chat message.
OpenAI API
Used when “OpenAI (GPT)” is selected and an API key is saved. Requests are sent to https://api.openai.com/v1/chat/completions with the data listed above and your API key. To show which models your key can use, the settings page also sends your API key to https://api.openai.com/v1/models when the key is saved, when “Refresh available models” is clicked, or when the settings page is opened after the cached list (kept for 6 hours) has expired.
Terms of use: https://openai.com/policies/terms-of-use/
Used when “Google Gemini” is selected and an API key is saved. Requests are sent to https://generativelanguage.googleapis.com/ with the data listed above and your API key.
Terms of service: https://ai.google.dev/gemini-api/terms
Used when no API key is saved in the plugin and an AI provider is connected under Settings → Connectors (WordPress 7.0+). The request is sent with the data listed above to whichever provider the site owner has connected. Official provider plugins register with the Connectors screen and send the request from your server. Provider terms depend on which connector you enable, for example:
Used only for the internal linking feature, and only when “Use Upstash for Search” is enabled in the Internal Links settings and an Upstash REST URL and token are configured. When it is disabled, the plugin uses the built-in WordPress search instead and contacts no external search service.
What is sent: search queries derived from the keywords of the post being edited, sent to the Upstash Search REST endpoint you configure, together with your Upstash REST token.
When it is sent: only when a user generates internal link suggestions while the option is enabled.
Terms of service: https://upstash.com/trust/terms.pdf Privacy policy: https://upstash.com/trust/privacy.pdf
Support
For support, please use the plugin’s support forum on WordPress.org.
WordPress 6.0 or higher (WordPress 7.0 or higher to use Settings → Connectors)
PHP 7.4 or higher
An OpenAI or Google Gemini API key, or an AI provider connected in Settings → Connectors
Token Management
The plugin uses intelligent token management: * Short outputs (< 200 chars): Uses ~5K article content * Medium outputs (200-500 chars): Uses ~10K article content * Long outputs (no limits): Uses up to 50K article content * Adaptive based on custom prompt length
API Limits
Output token ceiling configurable from 256 to 65,500 (default 16,384)
Bounded automatic continuation for incomplete responses (default 1, max 3)
Smart content truncation to prevent input token errors
Privacy
API keys are encrypted (site-salt derived) before being stored in WordPress options and are never rendered back into the settings page
Post content and prompts are sent to the AI provider you configure – see the “External services” section for exactly what is sent and when
Data handling on the provider side is governed by that provider’s own terms and privacy policy
Every AI request is recorded in a local log table (wp_dnaic_api_log) on your own site, pruned after 30 days
The plugin itself does not track users and sends no analytics
All communication uses HTTPS
Credits
Developed by Dropndot Solutions Copyright (C) 2026 Dropndot Solutions
See it in action
Screenshots & previews.
Settings page with API configuration and connection statusCustom fields selection interface with character/word limitsContent generation modal with previewInternal links suggestion interfaceAI chat assistantQuick prompts configurationUsage monitoringUser access control for non-admin usersInternal links settings
02 / Source details
Getting started.
01Upload the dropndot-ai-content-custom-fields folder to your /wp-content/plugins/ directory
02Activate the plugin through the ‘Plugins’ menu in WordPress
03Go to Settings → Dropndot AI Content for Custom Fields and either enter an OpenAI or Google Gemini API key, or connect a provider under Settings → Connectors
04Select which custom fields to enable
05Set character/word limits for fields that need them
06Start generating content!
03 / Source details
Frequently asked questions.
Do I need to pay for the API?
Yes. You use your own OpenAI or Google Gemini API key, or the provider you connect under Settings → Connectors. Costs depend on that provider’s pricing. This plugin does not add its own usage fees. The Usage Guardrails settings let you cap daily requests and tokens.
I am updating from version 1.0.0. Do I need to enter an API key?
No. If you do not save an API key, the plugin keeps using the WordPress AI Client and the provider you connected under Settings → Connectors, exactly as in 1.0.0. Your fields, prompts, limits, Quick Prompts and User Access settings are kept. You can add an API key later to call OpenAI or Gemini directly.
How is my API key stored?
API keys and the Upstash token are encrypted with a key derived from your site’s WordPress salts, stored in a separate option that is not autoloaded, and never printed back into the settings page.
How do character limits work?
Simply enter a number in the “Char Limit” field (e.g., 140 for meta descriptions). The AI will generate content within that limit, and a safety net ensures it never exceeds the limit. Truncation happens at sentence boundaries for natural-looking content.
Can I set both character and word limits?
Yes, but typically you’d use one or the other. If both are set, the AI will respect whichever limit is more restrictive. For SEO meta descriptions, use character limits. For article summaries, word limits work better.
What if I don’t set any limits?
That’s fine! The plugin will generate content based on your custom prompt instructions. Limits are optional and only needed when you have specific requirements (like SEO meta descriptions).
Does it work with Advanced Custom Fields (ACF)?
Yes! It works perfectly with ACF, Meta Box, Pods, and standard WordPress custom fields. It also supports Yoast SEO and Rank Math fields.
Can I use it on custom post types?
Yes! The plugin works on all public post types. You can control access through user permissions.
How does the internal links feature work?
The AI analyzes your post content, extracts relevant keywords, and matches them with other posts in your database. You can review and approve links before they’re applied to your content.
Can I customize the AI prompts?
Yes! Each field can have its own custom prompt. You can specify instructions, tone, format requirements, and any other details. The character/word limits are set in separate fields for precision.
What happens if I get a “Token limit reached” error?
The plugin includes automatic token optimization. It adaptively reduces article content when generating short outputs (like meta descriptions) to prevent token errors. You can also raise “Max Output Tokens” in the settings.
Does the chat feature remember conversation history?
Yes! The chat maintains conversation context throughout your session, allowing for follow-up questions and deeper analysis.
Can I use both OpenAI and Gemini?
You can switch between providers in settings; one provider is active at a time. When requests go through Settings → Connectors, the selected provider is a preference and the WordPress AI Client falls back to any compatible connected model.
How do I control who can use AI features?
Go to Settings → Dropndot AI Content for Custom Fields → User Access tab. Administrators always have access. You can grant access to specific users who can edit posts.
What happens to my data when I delete the plugin?
By default your settings are kept, so re-installing restores them. To erase everything on delete, enable “Remove all plugin data when the plugin is deleted” under Settings → General → Data & Uninstall. Deactivation never deletes data.
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