Custom fields integration
MCP for JetEngine
JetEngine keeps field definitions in its own registry and post field values as ordinary post meta under the field name. WP MCP exposes both on the plugin-data pair: jetengine-list-fields returns the fields for a post type from JetEngine's registry (layout entries and HTML-only fields skipped), jetengine-get-fields reads a post's values, and jetengine-update-fields writes them. Only keys that are fields of the post's type are read or written, never arbitrary meta. Writes are off until a site opts in, and each one is snapshotted on the post.
What your AI can do
Real JetEngine operations, every write reversible.
- List JetEngine fields for any post type
- Read a post's JetEngine field values
- Write field values (opt-in), snapshotted and reversible
- Refuse keys that are not fields of the post type
Example prompts
Just ask.
What JetEngine fields does the Property post type have?
Read the price and bedrooms fields on listing 210.
Set the status field to "sold" on these five listings.
Under the hood
The real calls.
plugin-data-read({ operation: "jetengine-list-fields", args: { post_type: "property" } })
plugin-data-write({ operation: "jetengine-update-fields", args: { post_id: 210, fields: { status: "sold" } } }), opt-in; snapshotted
Frequently asked
Questions, answered.
How do I turn writes on?
With the wpmcp_enable_jetengine_write filter, the same opt-in posture as ACF and Meta Box.
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