Cosmicjs MCP server

What it does

This MCP server exposes Cosmic CMS functionality for managing content, media, object types, and AI generation. It is for developers using Claude, Cursor, or other MCP-compatible clients who want to interact with their Cosmic CMS bucket programmatically.

• List, create, update, and delete content objects in your Cosmic bucket from an AI assistant.
• Upload and manage media files to your bucket without leaving your MCP client.
• Generate AI-created text, images, and videos and save them directly to your Cosmic bucket.

Tools this server exposes

Tool	Does
cosmic_objects_list	List objects in the bucket with optional filtering by type, status, and pagination.
cosmic_objects_get	Retrieve a single object by ID or slug.
cosmic_objects_create	Create a new object in the bucket.
cosmic_objects_update	Update an existing object.
cosmic_objects_delete	Delete an object from the bucket.
cosmic_media_list	List media files with optional folder filtering.
cosmic_media_get	Retrieve media file details by ID.
cosmic_media_upload	Upload media from a URL or base64-encoded data.
cosmic_media_delete	Delete a media file from the bucket.
cosmic_types_list	List all object types (schemas) in the bucket.
cosmic_types_get	Retrieve object type schema by slug.
cosmic_types_create	Create a new object type with custom metafields.
cosmic_types_update	Update an existing object type schema.
cosmic_types_delete	Delete an object type from the bucket.
cosmic_ai_generate_text	Generate text content using AI.
cosmic_ai_generate_image	Generate an AI image and upload it to the bucket.
cosmic_ai_generate_video	Generate an AI video and upload it to the bucket.
cosmic_blocks_list	List reusable rich-text Content Blocks available in the bucket.

Before you enable it

An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.