Read and write ACF field values, author field groups, and register CPTs & taxonomies.
Advanced Custom Fields is the de-facto standard for structured content in WordPress, it's how most serious sites model anything beyond a plain post. EMCP exposes ACF through two dispatcher tools covering 15 operations: read and write field values on posts and options pages, discover and author field groups, and (on ACF 6.1+) register ACF-managed custom post types and taxonomies as data.
That's enough for an AI to stand up a whole content structure end to end, define a CPT and a taxonomy, build a field group, then create posts and fill their fields, and full Pro field types round-trip as nested JSON: repeaters, flexible content (layout-validated), galleries, groups, and clones. And it's free.
Once Advanced Custom Fields is active, ask any MCP client, Claude, Cursor, or your own, to do these in plain language.
Real instructions you can hand your agent for Advanced Custom Fields.
"Set the 'subtitle' and 'hero_image' fields on this landing page."
"Create a 'Team Member' custom post type with name, role, and photo fields."
"Read every ACF field on post 123 and show me the repeater rows."
Read a post's ACF fields, how EMCP drives Advanced Custom Fields.
acf-read({ operation: "get-fields", arguments: { post_id: 123 } })Note: Only registers when ACF is active. Free EMCP integration; writes ship off by default.
No, the integration works with free ACF and ACF PRO. Pro-only field types (repeater, flexible content, gallery, clone) round-trip when ACF PRO is active; on free ACF they degrade gracefully. Custom-post-type and taxonomy registration needs ACF 6.1+.
Deliberately not. There is no delete operation and no slug/field rename, renames orphan stored content, so the integration is safe to enable. Writes also ship disabled by default.
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