Model Types

Get characteristics of available entities, including their associated attributes, attributes required for creation, and which attributes are editable. Use this API alongside the Entities API to discover, create, and edit entities more easily.

We generally use the term "model type" for a kind of entity. However, this API was written to use "entity type". They mean the same thing. This API provides model type information.


Base route	/v1/entity_types
Endpoints	GET /v1/entity_types /v1/entity_types/:id
Produces	JSON
Pagination	No
Application permissions required	"API Access: Create, edit, and delete" is required to retrieve available model types.
OAuth scopes	`ENTITIES` or `ENTITIES_WRITE`

Resource overview

Types are described by the below resource object attributes and will appear in successful GET responses.

Attribute	Description	Example
`display_name`	Display name of the model type. String.	`"Person"`
`category`	Category for the model type. String.	`"Security"`
`ownership_type`	The model type's ownership type. String.	`"share_based"`
`entity_attributes`	Attribute properties. Object.	See model type attributes

Model type attributes

Attribute	Description	Example
`key`	The attribute's name. String.	`"currency_factor"`
`required`	Specifies if attribute is required for entity creation or modification. Boolean.	`true`
`writability`	Indicates whether attribute can be modified. String. - `MUTABLE`: Can be edited with permission. - `IMMUTABLE`: Cannot be set or modified. - `FINAL`: Can be set upon entity creation but cannot be modified. - `RESTRICTED_FOR_ONLINE`: Requires "edit online data" permissions to modify.	`"MUTABLE"`

Supported model types

Name	API display name	Ownership type
Household	`household`	Percent-based
Client	`person_node`	Percent-based
Prospect	`prospect`	Percent-based
Managed fund	`managed_partnership`	Share-based or value-based
Holding company	`holding_company`	Percent-based
Manager	`manager`	Percent-based
Private fund	`fund`	Value-based
Trust	`trust`	Percent-based
Vehicle	`vehicle`	Percent-based
Holding Account	`financial_account`	Percent-based
Sleeve	`sleeve`	Percent-based
Annuity	`annuity`	Value-based
Art*	`art`	Share-based or value-based
Bond	`bond`	Share-based
Car*	`car`	Share-based or value-based
Certificate of deposit	`certificate_of_deposit`	Share-based
Closed end fund	`closed_end_fund`	Share-based
CMO	`cmo`	Share-based
Collectible*	`collectible`	Share-based or value-based
Convertible note	`convertible_note`	Share-based
Custom asset, or any other custom investment type that's not in this list	`generic_asset`	Any
Currency	`cash`	Share-based
Digital asset	`digital_asset`	Share-based
ETF	`etf`	Share-based
ETN	`etn`	Share-based
Forward contract	`forward_contract`	Share-based
Futures contract	`futures_contract`	Share-based
Hedge fund*	`hedge_fund`	Share-based or value-based
Historical segment	`historical_segment`	Value-based
Loan	`loan`	Value-based
Master limited partnership	`master_limited_partnership`	Share-based
Money market fund	`money_market_fund`	Share-based
Mutual fund	`mutual_fund`	Share-based
Option	`option`	Share-based
Preferred stock	`preferred_stock`	Share-based
Private equity fund*	`private_equity_fund`	Share-based or value-based
Private investment*	`private_investment`	Share-based or value-based
Promissory note*	`promissory_note`	Share-based or value-based
Real estate*	`real_estate`	Share-based or value-based
REIT	`reit`	Share-based
Stock	`stock`	Share-based
Structured product	`structured_product`	Share-based
UIT	`uit`	Share-based
Unknown security	`unknown_security`	Share-based
Venture capital*	`venture_capital`	Share-based or value-based
Warrant	`warrant`	Share-based

*This model type is currently only available to firms that started using Addepar on or after September 12, 2025.

Get all model types

Returns a list of all model types.

GET /v1/entity_types

Example:

GET https://examplefirm.addepar.com/api/v1/entity_types

HTTP/1.1 200

{
    "data": [
      {
        "id": "person_node",
        "type": "entity_types",
        "attributes": {
          "entity_attributes": [
            {
              "key": "currency_factor",
              "required": true,
              "writability": "MUTABLE"
            },
            {
              "key": "original_name",
              "required": false,
              "writability": "MUTABLE"
            },
            {
              "key": "display_name",
              "required": false,
              "writability": "MUTABLE"
            }
          ],
          "display_name": "Person",
        },
        "links": {
          "self": "/v1/entity_types/person_node"
        }
      },
      {
        "id": "stock",
        "type": "entity_types",
        "attributes": {
          "ownership_type": "share_based",
          "entity_attributes": [
            {
              "key": "currency_factor",
              "required": true,
              "writability": "IMMUTABLE"
            },
            {
              "key": "original_name",
              "required": true,
              "writability": "IMMUTABLE"
            },
            {
              "key": "ownership_type",
              "required": true,
              "writability": "IMMUTABLE"
            },
            {
              "key": "ticker_symbol",
              "required": false,
              "writability": "IMMUTABLE"
            },
            {
              "key": "display_name",
              "required": false,
              "writability": "MUTABLE"
            },
            {
              "key": "cusip",
              "required": false,
              "writability": "IMMUTABLE"
            },
            {
              "key": "isin",
              "required": false,
              "writability": "IMMUTABLE"
            },
            {
              "key": "sedol",
              "required": false,
              "writability": "IMMUTABLE"
            },
            {
              "key": "secid_id",
              "required": false,
              "writability": "IMMUTABLE"
            },
            {
              "key": "secid_element_type",
              "required": false,
              "writability": "IMMUTABLE"
            },
            {
              "key": "secid_verification_state",
              "required": false,
              "writability": "IMMUTABLE"
            }
          ],
          "category": "Security",
          "display_name": "Stock",
        },
        "links": {
          "self": "/v1/entity_types/stock"
        }
      }
    ],
    "included": [],
    "links": {
        "next": null
    }
}

Response Codes:

200 OK: Success
403 Forbidden: Insufficient application permissions or appropriate scope not granted

Get a model type

Returns details about a specified model type.

GET /v1/entity_types/:id

GET https://examplefirm.addepar.com/api/v1/entity_types/bond

HTTP/1.1 200

{
  "data": {
    "id": "bond",
    "type": "entity_types",
    "attributes": {
      "ownership_type": "share_based",
      "entity_attributes": [
        {
          "key": "currency_factor",
          "required": true,
          "writability": "MUTABLE"
        },
        {
          "key": "original_name",
          "required": true,
          "writability": "IMMUTABLE"
        },
        {
          "key": "ownership_type",
          "required": true,
          "writability": "IMMUTABLE"
        },
        {
          "key": "display_name",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "cusip",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "isin",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "sedol",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "bond_type",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "coupon_rate",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "coupon_type",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "bond_frequency",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "original_principal_per_share",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "issue_date",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "dated_date",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "accrual_start_date",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "first_payment_date",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "last_payment_date",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "maturity_date",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "day_count_convention",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "call_info",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "is_prerefunded",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "secid_id",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "secid_element_type",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "secid_verification_state",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "coupon_cap",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "coupon_floor",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "reset_frequency",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "first_variable_coupon_date",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "floating_index",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "floating_spread",
          "required": false,
          "writability": "IMMUTABLE"
        },
        {
          "key": "actual_security_type",
          "required": false,
          "writability": "IMMUTABLE"
        }
      ],
      "category": "Security",
      "display_name": "Bond",
    },
    "links": {
      "self": "/v1/entity_types/bond"
    }
  },
  "included": []
}

Response Codes:

200 OK: Success
403 Forbidden: Insufficient application permissions or appropriate scope not granted
404 Not Found: Invalid model type