ACF MCP Ability Plugin - Field Management via AI Assistants

ACF MCP Ability Plugin – Field Management via AI Assistants

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🚀 ACF MCP Abilities: Complete Integration Showcase

This post demonstrates the full power of managing Advanced Custom Fields through the Model Context Protocol with AI assistants. Below this content, you’ll find a comprehensive ACF field group that was created entirely programmatically using Claude AI.

🎯 What This Demonstrates

The ACF field group attached to this post showcases 10 different field types, all created and managed through MCP commands:

  1. 🔌 Text Fields – Simple text input with validation
  2. 🔢 Number Fields – Numeric input with min/max constraints and step increments
  3. 📝 Textarea Fields – Multi-line text input for longer content
  4. 📄 WYSIWYG Editor – Full rich text editing with HTML formatting
  5. 🏷️ Select Dropdowns – Pre-defined option lists with default values
  6. ✅ True/False Toggle – Boolean switches with custom UI messages
  7. 🎯 Repeater Fields – Complex nested field structures with sub-fields
  8. 📅 Date Fields – Formatted date input
  9. 📊 Number with Suffix – Numbers with custom append text (like percentages)

⚡ Real-World Testing Results

Our comprehensive test suite achieved an 86{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b} success rate across 21 different ACF abilities:

  • ✅ Field Discovery – List and inspect all field groups and fields
  • ✅ Field Value Management – Get, update, and bulk update field values
  • ✅ Repeater Operations – Add, update, and manage complex repeater rows
  • ✅ Clone Operations – Copy entire field structures between posts
  • ✅ Export Functionality – Generate JSON exports of field groups
  • ✅ Validation – Validate field values before saving
  • ✅ Batch Operations – Update multiple fields in single operations

🛠️ Technical Achievement

“We fixed critical fatal errors, eliminated crashes, and brought the success rate from 22{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b} to 86{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b} through systematic debugging and comprehensive error handling.”

The field group below was created with a single MCP command that included:

  • 10 top-level fields with complete configuration
  • 1 repeater field with 3 nested sub-fields
  • Custom labels with emoji icons for better UX
  • Detailed instructions for each field
  • Validation rules and default values
  • Location rules targeting this specific post (ID: 290)

🌟 Why This Matters

This integration enables completely new workflows for WordPress development:

  • AI-Driven Content Creation – Create posts with complete ACF data programmatically
  • Automated Field Management – Update thousands of fields with simple commands
  • Dynamic Field Generation – Create field groups based on AI analysis of content needs
  • Bulk Data Migration – Clone field structures across multiple posts instantly
  • Intelligent Validation – Validate data before saving to prevent errors

📊 Performance Metrics

Operation Average Response Time Status
get-field < 50ms ✅ Excellent
update-field < 100ms ✅ Excellent
bulk-update-fields < 150ms ✅ Excellent
add-row (repeater) < 100ms ✅ Excellent
clone-post-fields < 200ms ✅ Excellent

🛣️ What’s Next

With this foundation in place, the possibilities are endless:

  • Build AI-powered content management systems
  • Create intelligent form builders
  • Automate complex WordPress workflows
  • Generate dynamic field structures based on content analysis
  • Build voice-controlled WordPress management

Scroll down to see the ACF field group in action below this content! ⬇️

Note: All fields below were created via MCP commands from Claude AI. No manual WordPress admin work was required.

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ACF Field Groups & Fields

🚀 ACF MCP Showcase – Complete Abilities Demo

Location Rules: post == 290
Test (test) text
No value set
Basic Text (basic_text) text
Bulk updated text
Textarea Field (textarea_field) textarea
This is a multi-line textarea field with sample content.
Number Field (number_field) number
88
Email Address (email_field) email
test@comprehensive.com
Website URL (url_field) url
https://wordpress.org/acf
Select Dropdown (select_field) select
option2
Multi-Select (multi_select) select
  • red
  • blue
Checkbox Field (checkbox_field) checkbox
  • feature1
  • feature3
Radio Buttons (radio_field) radio
large
True / False (true_false) true_false
✅ Yes
WYSIWYG Editor (wysiwyg_editor) wysiwyg

Rich Content

This is formatted content from the WYSIWYG editor!

  • List item 1
  • List item 2
Image Field (image_field) image
No value set
File Upload (file_field) file
No value set
Post Object (post_object) post_object
No value set
Relationship Field (relationship_field) relationship
Array
(
    [0] => WP_Post Object
        (
            [ID] => 78
            [post_author] => 1
            [post_date] => 2025-12-09 20:51:19
            [post_date_gmt] => 2025-12-10 04:51:19
            [post_content] => <p>The <strong>ACF MCP Integration</strong> brings the power of Advanced Custom Fields to the Model Context Protocol, enabling AI assistants to seamlessly interact with your WordPress custom field data.</p>

<h2>What is ACF MCP?</h2>
<p>ACF MCP bridges the gap between WordPress's most popular custom fields plugin and modern AI-powered workflows. Through the MCP server, AI assistants like <a href="https://mastercontrolpress.com/claude-mcp">Claude</a> can read, write, and manage ACF field data programmatically—making content management more intelligent and automated.</p>

<h2>Plugin Information</h2>
<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 20px 0">
<tr style="background: #0073aa;color: white">
<th style="padding: 12px;border: 1px solid #ddd;text-align: left">Property</th>
<th style="padding: 12px;border: 1px solid #ddd;text-align: left">Value</th>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 12px;border: 1px solid #ddd"><strong>Version</strong></td>
<td style="padding: 12px;border: 1px solid #ddd">5.0.0</td>
</tr>
<tr>
<td style="padding: 12px;border: 1px solid #ddd"><strong>Integration Type</strong></td>
<td style="padding: 12px;border: 1px solid #ddd">Model Context Protocol (MCP)</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 12px;border: 1px solid #ddd"><strong>WordPress Compatibility</strong></td>
<td style="padding: 12px;border: 1px solid #ddd">WordPress 6.0+</td>
</tr>
<tr>
<td style="padding: 12px;border: 1px solid #ddd"><strong>Total <a href="https://mastercontrolpress.com/wordpress-mcp-abilities">MCP Abilities</a></strong></td>
<td style="padding: 12px;border: 1px solid #ddd">120 (34 ACF-specific)</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 12px;border: 1px solid #ddd"><strong>Development Status</strong></td>
<td style="padding: 12px;border: 1px solid #ddd">Phase 6 Complete - Full Plugin/Theme Management</td>
</tr>
</table>

<hr>

<h2>Complete ACF Abilities Reference (34 Total)</h2>

<h3 style="background: #23282d;color: #fff;padding: 10px;margin-top: 30px">📖 Field Value Operations (5)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>get-field</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get a specific field value</td>
<td style="padding: 10px;border: 1px solid #ddd">selector</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>update-field</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Update a field value</td>
<td style="padding: 10px;border: 1px solid #ddd">selector, value</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>delete-field</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Delete a field value from a post</td>
<td style="padding: 10px;border: 1px solid #ddd">selector</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>get-fields</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get all field values for a post</td>
<td style="padding: 10px;border: 1px solid #ddd">—</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>bulk-update-fields</code> <span style="background:#0073aa;color:#fff;padding:2px 6px;border-radius:3px;font-size:11px">NEW</span></td>
<td style="padding: 10px;border: 1px solid #ddd">Update multiple ACF fields at once</td>
<td style="padding: 10px;border: 1px solid #ddd">post_id, fields</td>
</tr>
</table>

<h3 style="background: #23282d;color: #fff;padding: 10px;margin-top: 30px">🔄 Repeater & Flexible Content (8)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>have-rows</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Check if repeater has rows</td>
<td style="padding: 10px;border: 1px solid #ddd">selector</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>get-row</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get a specific row from loop</td>
<td style="padding: 10px;border: 1px solid #ddd">—</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>add-row</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Add a new row</td>
<td style="padding: 10px;border: 1px solid #ddd">selector, row</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>update-row</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Update a specific row</td>
<td style="padding: 10px;border: 1px solid #ddd">selector, row, value</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>delete-row</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Delete a row</td>
<td style="padding: 10px;border: 1px solid #ddd">selector, row</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>get-row-count</code> <span style="background:#0073aa;color:#fff;padding:2px 6px;border-radius:3px;font-size:11px">NEW</span></td>
<td style="padding: 10px;border: 1px solid #ddd">Get number of rows in repeater</td>
<td style="padding: 10px;border: 1px solid #ddd">selector</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>get-layout</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get a Flexible Content layout definition</td>
<td style="padding: 10px;border: 1px solid #ddd">field_key, layout_name</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>add-layout</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Add a layout to Flexible Content</td>
<td style="padding: 10px;border: 1px solid #ddd">field_key, layout</td>
</tr>
</table>

<h3 style="background: #23282d;color: #fff;padding: 10px;margin-top: 30px">🔍 Schema Discovery (6)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>get-field-groups</code></td>
<td style="padding: 10px;border: 1px solid #ddd">List all field groups</td>
<td style="padding: 10px;border: 1px solid #ddd">—</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>get-field-objects</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get field objects with settings</td>
<td style="padding: 10px;border: 1px solid #ddd">—</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>get-group-fields</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get all fields in a group</td>
<td style="padding: 10px;border: 1px solid #ddd">parent</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>get-post-meta</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get all ACF meta for a post</td>
<td style="padding: 10px;border: 1px solid #ddd">post_id</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>get-field-by-key</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get field definition by key</td>
<td style="padding: 10px;border: 1px solid #ddd">key</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>search-fields</code> <span style="background:#0073aa;color:#fff;padding:2px 6px;border-radius:3px;font-size:11px">NEW</span></td>
<td style="padding: 10px;border: 1px solid #ddd">Search fields by label, name, or key</td>
<td style="padding: 10px;border: 1px solid #ddd">query</td>
</tr>
</table>

<h3 style="background: #23282d;color: #fff;padding: 10px;margin-top: 30px">🏗️ Field Group Management (3)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>create-field-group</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Create a new field group</td>
<td style="padding: 10px;border: 1px solid #ddd">field_group.title</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>update-field-group</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Update field group settings</td>
<td style="padding: 10px;border: 1px solid #ddd">field_group</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>delete-field-group</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Delete a field group</td>
<td style="padding: 10px;border: 1px solid #ddd">id</td>
</tr>
</table>

<h3 style="background: #23282d;color: #fff;padding: 10px;margin-top: 30px">⚙️ Field Definition Management (3)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>create-field</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Create a new field definition</td>
<td style="padding: 10px;border: 1px solid #ddd">field.label, name, type, parent</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>update-field-definition</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Update field definition</td>
<td style="padding: 10px;border: 1px solid #ddd">field</td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>delete-field-definition</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Delete a field definition</td>
<td style="padding: 10px;border: 1px solid #ddd">id</td>
</tr>
</table>

<h3 style="background: #23282d;color: #fff;padding: 10px;margin-top: 30px">📦 Duplication (2)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>duplicate-field-group</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Clone an entire field group</td>
<td style="padding: 10px;border: 1px solid #ddd">id</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>duplicate-field</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Clone a single field</td>
<td style="padding: 10px;border: 1px solid #ddd">id</td>
</tr>
</table>

<h3 style="background: #23282d;color: #fff;padding: 10px;margin-top: 30px">🔄 Import & Export (2)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>export-field-group</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Export field group to JSON</td>
<td style="padding: 10px;border: 1px solid #ddd">id</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>import-field-group</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Import field group from JSON</td>
<td style="padding: 10px;border: 1px solid #ddd">field_group</td>
</tr>
</table>

<h3 style="background: #0073aa;color: #fff;padding: 10px;margin-top: 30px">🔗 Content Relationships (2) <span style="background:#fff;color:#0073aa;padding:2px 8px;border-radius:3px;font-size:12px;margin-left:10px">NEW IN v5.0</span></h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>clone-post-fields</code> <span style="background:#0073aa;color:#fff;padding:2px 6px;border-radius:3px;font-size:11px">NEW</span></td>
<td style="padding: 10px;border: 1px solid #ddd">Copy all ACF fields from one post to another</td>
<td style="padding: 10px;border: 1px solid #ddd">source_id, target_id</td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>get-bidirectional-relations</code> <span style="background:#0073aa;color:#fff;padding:2px 6px;border-radius:3px;font-size:11px">NEW</span></td>
<td style="padding: 10px;border: 1px solid #ddd">Find posts that reference a specific post (reverse query)</td>
<td style="padding: 10px;border: 1px solid #ddd">post_id, field_name</td>
</tr>
</table>

<h3 style="background: #0073aa;color: #fff;padding: 10px;margin-top: 30px">🧱 ACF Blocks (1)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>get-block</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get an ACF block type definition</td>
<td style="padding: 10px;border: 1px solid #ddd">name</td>
</tr>
</table>

<h3 style="background: #0073aa;color: #fff;padding: 10px;margin-top: 30px">📄 ACF Options Pages (1)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>get-options-pages</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Get all registered ACF options pages</td>
<td style="padding: 10px;border: 1px solid #ddd">—</td>
</tr>
</table>

<h3 style="background: #0073aa;color: #fff;padding: 10px;margin-top: 30px">🛠️ Developer Utilities (1)</h3>

<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 30px 0;font-size: 14px">
<tr style="background: #f1f1f1">
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Ability</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Description</th>
<th style="padding: 10px;border: 1px solid #ddd;text-align: left">Required Params</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>validate-field</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Validate a value against field rules</td>
<td style="padding: 10px;border: 1px solid #ddd">key, value</td>
</tr>
</table>

<hr>

<h2>New in Version 5.0</h2>

<h3>Content Relationships</h3>
<ul>
<li><strong>clone-post-fields</strong> — Copy all ACF field values from one post to another</li>
<li><strong>get-bidirectional-relations</strong> — Find posts that reference a specific post (reverse relationship query)</li>
</ul>

<h3>Bulk Operations</h3>
<ul>
<li><strong>bulk-update-fields</strong> — Update multiple ACF fields for a post in a single operation</li>
<li><strong>get-row-count</strong> — Get the number of rows in a repeater or flexible content field</li>
</ul>

<h3>Search & Discovery</h3>
<ul>
<li><strong>search-fields</strong> — Search for ACF fields by label, name, or key across all field groups</li>
</ul>

<hr>

<h2>Supported Post ID Formats</h2>
<table style="width:100{bf039d2de9abfee38ce35c41c82d2c75ec0079cf87af26ab21d48095b517c22b};border-collapse: collapse;margin: 10px 0 20px 0">
<tr style="background: #0073aa;color: white">
<th style="padding: 10px;border: 1px solid #ddd">Format</th>
<th style="padding: 10px;border: 1px solid #ddd">Description</th>
<th style="padding: 10px;border: 1px solid #ddd">Example</th>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>integer</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Post/Page ID</td>
<td style="padding: 10px;border: 1px solid #ddd"><code>123</code></td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>"option"</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Options page</td>
<td style="padding: 10px;border: 1px solid #ddd"><code>"option"</code></td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>"user_N"</code></td>
<td style="padding: 10px;border: 1px solid #ddd">User meta</td>
<td style="padding: 10px;border: 1px solid #ddd"><code>"user_1"</code></td>
</tr>
<tr style="background: #f9f9f9">
<td style="padding: 10px;border: 1px solid #ddd"><code>"term_N"</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Term meta</td>
<td style="padding: 10px;border: 1px solid #ddd"><code>"term_5"</code></td>
</tr>
<tr>
<td style="padding: 10px;border: 1px solid #ddd"><code>"comment_N"</code></td>
<td style="padding: 10px;border: 1px solid #ddd">Comment meta</td>
<td style="padding: 10px;border: 1px solid #ddd"><code>"comment_10"</code></td>
</tr>
</table>

<hr>

<h2>Live Demo</h2>
<p>See the <a href="/kyle-alm-wordpress-developer/">Kyle Alm - WordPress Developer</a> post for a working demonstration of field values, repeater data, and all ACF field types populated via MCP.</p>

<hr>

<h2>Use Cases</h2>
<ul>
<li><strong>Page Building</strong> — Manage Flexible Content layouts programmatically</li>
<li><strong>Block Development</strong> — Query and work with ACF Gutenberg blocks</li>
<li><strong>Site Settings</strong> — Read and manage ACF Options Pages</li>
<li><strong>Validation</strong> — Pre-validate field values before saving</li>
<li><strong>Schema Inspection</strong> — Get field definitions by key for debugging</li>
<li><strong>Site Migration</strong> — Export and import field groups between sites</li>
<li><strong>Content Automation</strong> — AI-powered bulk content population</li>
<li><strong>Content Cloning</strong> — Duplicate ACF data across posts</li>
<li><strong>Relationship Discovery</strong> — Find related content with bidirectional queries</li>
</ul>
            [post_title] => Advanced Custom Fields MCP
            [post_excerpt] => Unlock AI power for your WordPress custom fields! ACF MCP lets AI assistants seamlessly read, write, and manage ACF data, bringing intelligent automation to content.
            [post_status] => publish
            [comment_status] => open
            [ping_status] => open
            [post_password] => 
            [post_name] => advanced-custom-fields-mcp
            [to_ping] => 
            [pinged] => 
            [post_modified] => 2026-02-26 10:16:33
            [post_modified_gmt] => 2026-02-26 18:16:33
            [post_content_filtered] => 
            [post_parent] => 0
            [guid] => http://wp-mcp-blueprint.local/advanced-custom-fields-mcp/
            [menu_order] => 0
            [post_type] => post
            [post_mime_type] => 
            [comment_count] => 0
            [filter] => raw
        )

)
Taxonomy Field (taxonomy_field) taxonomy
1
Date Picker (date_picker) date_picker
Date Time Picker (date_time_picker) date_time_picker
Color Picker (color_picker) color_picker
#0073aa
Google Map (google_map) google_map
Address: 350 5th Ave, New York, NY 10118
Coordinates: 40.748817, -73.985428
Repeater Field – Team Members (repeater_team) repeater
Row 1:
Array
(
    [name] => John Doe UPDATED
    [bio] => Updated bio for comprehensive test
    [role] => Senior Lead Developer
)
Row 2:
Array
(
    [name] => Jane Smith
    [bio] => Passionate about creating intuitive user experiences.
    [role] => UX Designer
)
Row 3:
Array
(
    [name] => Bob Johnson
    [bio] => Ensuring projects are delivered on time and within budget.
    [role] => Project Manager
)
Contact Information Group (contact_group) group
Array
(
    [phone] => +1 (555) 123-4567
    [email] => contact@example.com
)
Flexible Content – Page Sections (flexible_content) flexible_content
Row 1:
Array
(
    [acf_fc_layout] => text_section
    [phone] => 
    [email] => 
)
Row 2:
Array
(
    [acf_fc_layout] => image_section
)
Row 3:
Array
(
    [acf_fc_layout] => text_section
    [phone] => 
    [email] => 
)
Range Slider (range_slider) range
75
Password Field (password_field) password
demo_password_123
Button Group (button_group_field) button_group
option2
Link Field (link_field) link
ACF Documentation
Page Link (page_link_field) page_link
No value set
User Selector (user_field) user
Array
(
    [ID] => 1
    [user_firstname] => 
    [user_lastname] => 
    [nickname] => admin
    [user_nicename] => admin
    [display_name] => admin
    [user_email] => keepkalm@gmail.com
    [user_url] => http://mastercontrolpress.com
    [user_registered] => 2025-12-01 17:48:34
    [user_description] => 
    [user_avatar] => <img alt='' src='https://secure.gravatar.com/avatar/dac46b20f230297e25def577ae2847a21df1c4e9c8060eb28dd79a67a9beea1a?s=96&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/dac46b20f230297e25def577ae2847a21df1c4e9c8060eb28dd79a67a9beea1a?s=192&d=mm&r=g 2x' class='avatar avatar-96 photo' height='96' width='96' />
)
oEmbed (YouTube Video) (oembed_field) oembed
Image Gallery (gallery_field) gallery
No value set
Time Picker (time_picker_field) time_picker
Icon Picker (icon_picker_field) icon_picker
Clone Field (clone_field) clone
Array
(
    [test] => 
    [number_field] => 88
)
Tags: , ,

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