CoreModels MCP Server

Manage graph-based data models, schemas, and ontologies with CoreModels. 16 MCP tools for visual data modeling with full JSON Schema support.

A Model Context Protocol (MCP) server for managing graph-based data models, schemas, and ontologies with CoreModels.

Quick Start

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "coremodels": {
      "url": "https://go.coremodels.io/mcp"
    }
  }
}

Add to .cursor/mcp.json or .vscode/mcp.json:

{
  "servers": {
    "coremodels": {
      "type": "streamable-http",
      "url": "https://go.coremodels.io/mcp"
    }
  }
}

All tools require a token parameter. Generate an API key from your CoreModels project settings.

Tool	Description
`core_models_fetch_nodes`	Fetch nodes with filtering and pagination
`core_models_project_content_summary`	Get all types, elements, and taxonomies
`core_models_get_mixins_info`	Get mixin definitions
`core_models_get_relation_groups_info`	Get available relation groups

Tool	Description
`core_models_create_node`	Create a new node
`core_models_update_node`	Update node label or spaces
`core_models_restore_node`	Restore a soft-deleted node
`core_models_bulk_create`	Bulk create nodes, relations, and mixins
`core_models_create_relation`	Create a relation between nodes
`core_models_create_mixin_type`	Create a new mixin type
`core_models_create_mixin_value`	Attach mixin values to a node
`core_models_import_jsonschema`	Import JSON Schema into a space

Tool	Description
`core_models_remove_node`	Soft-delete a node (restorable via `restore_node`)
`core_models_remove_relation`	Permanently remove a relation
`core_models_remove_mixin_value`	Remove mixin values from a node
`core_models_remove_mixin_type`	Permanently delete a mixin type and all its columns

Explore a project:

"List all types and elements in project abc123..."

Build a data model:

"Create a Type node called 'Patient' and an Element node called 'Name', then create an inheritance relation between them."

Add metadata:

"Create a mixin type called 'FHIR Mapping' with columns 'resourceType' and 'path', then attach it to the Patient node."