REST API endpoints for custom properties - GitHub Enterprise Cloud Docs

Get registered app installations for external custom properties

Gets the registered GitHub App installations used to read and write external custom properties for an organization.

A GitHub App installation token will only be able to see its own registration info, whereas an authenticated user will be able to see all registrations for the organization.

To use this endpoint, the authenticated caller must have the organization_external_properties_for_repos:admin permission.

Fine-grained access tokens for "Get registered app installations for external custom properties"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"External custom properties for repositories" organization permissions (admin)

Parameters for "Get registered app installations for external custom properties"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

HTTP response status codes for "Get registered app installations for external custom properties"

Status code	Description
`200`	OK
`403`	Forbidden
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "Get registered app installations for external custom properties"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

get/orgs/{org}/properties/installations

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/installations

Response

Status: 200

[
  {
    "value": {
      "display_name": "Acme",
      "installation": {
        "id": 1
      }
    }
  }
]

Register an app installation for external custom properties

Registers a GitHub App installation so it can read and write external custom properties for an organization, and assigns it a display name.

The display name must be 1 to 15 characters and contain only letters and numbers. Capitalization is preserved as entered.

An app installation can only be registered once, and its display name can't be changed afterward. Calling with an app installation that has already been registered returns a 422 response with an already_exists error code for installation_id. If the display name is already in use by another app installation in the organization, the response is 422 with an already_exists error code for display_name. An invalid display name also returns 422.

The app installation being registered must have write or admin permission for organization external custom properties for repositories. If it doesn't, the response is 422. This is the permission of the installation being registered, which isn't necessarily the caller.

Uninstalling the GitHub App unregisters it, and removes the external custom properties it created.

To use this endpoint, the authenticated caller must have the organization_external_properties_for_repos:admin permission.

Fine-grained access tokens for "Register an app installation for external custom properties"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"External custom properties for repositories" organization permissions (admin)

Parameters for "Register an app installation for external custom properties"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

Body parameters
Name, Type, Description
`installation_id` integer The unique identifier of the GitHub App installation to register for managing external custom properties. When authenticating as a GitHub App installation, this defaults to the authenticated installation and can be omitted. It is required for all other callers (users and fine-grained personal access tokens).
`display_name` string Required The display name for this app installation's external custom properties in the organization. Must be 1 to 15 characters and contain only letters and numbers. Capitalization is preserved as entered. This can't be changed after the app installation is registered.

HTTP response status codes for "Register an app installation for external custom properties"

Status code	Description
`201`	Created
`403`	Forbidden
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "Register an app installation for external custom properties"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

post/orgs/{org}/properties/installations

curl -L \
  -X POST \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/installations \
  -d '{"installation_id":67890,"display_name":"Acme"}'

Response

Status: 201

{
  "display_name": "Acme",
  "installation": {
    "id": 1
  }
}

Get all external custom properties for a GitHub App installation in an organization

Gets all external custom properties defined for the authenticated GitHub App installation on an organization.

To use this endpoint, the authenticated GitHub App must have the organization_external_properties_for_repos:read permission.

Fine-grained access tokens for "Get all external custom properties for a GitHub App installation in an organization"

This endpoint works with the following fine-grained token types:

GitHub App installation access tokens

The fine-grained token must have the following permission set:

"External custom properties for repositories" organization permissions (read)

Parameters for "Get all external custom properties for a GitHub App installation in an organization"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

HTTP response status codes for "Get all external custom properties for a GitHub App installation in an organization"

Status code	Description
`200`	OK
`403`	Forbidden
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "Get all external custom properties for a GitHub App installation in an organization"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

get/orgs/{org}/properties/installations/schema

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/installations/schema

Response

Status: 200

[
  {
    "property_name": "environment"
  },
  {
    "property_name": "business_unit"
  }
]

Create or update external custom property values for organization repositories

Create new or update existing external custom property values for repositories in a batch that belong to an organization. Each target repository will have its external custom property values updated to match the values provided in the request.

A maximum of 30 repositories can be updated in a single request.

Using a value of null for an external custom property will remove or 'unset' the property value from the repository.

To use this endpoint, the authenticated GitHub App must have the organization_external_properties_for_repos:write permission.

Fine-grained access tokens for "Create or update external custom property values for organization repositories"

This endpoint works with the following fine-grained token types:

GitHub App installation access tokens

The fine-grained token must have the following permission set:

"External custom properties for repositories" organization permissions (write)

Parameters for "Create or update external custom property values for organization repositories"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

Name, Type, Description

repository_names array of strings Required

The names of repositories that the external custom property values will be applied to.

properties array of objects Required

List of external custom property names and associated values to apply to the repositories.

Properties of properties

Name, Type, Description
`property_name` string Required The name of the property
`value` null or string or array Required The value assigned to the property

HTTP response status codes for "Create or update external custom property values for organization repositories"

Status code	Description
`204`	No Content when external custom property values are successfully created or updated
`403`	Forbidden
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "Create or update external custom property values for organization repositories"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

patch/orgs/{org}/properties/installations/values

curl -L \
  -X PATCH \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/installations/values \
  -d '{"repository_names":["Hello-World","octo-repo"],"properties":[{"property_name":"environment","value":"production"},{"property_name":"service","value":"web"},{"property_name":"team","value":"octocat"}]}'

No Content when external custom property values are successfully created or updated

Status: 204

Create or update external custom property values for a property across organization repositories

Create new or update existing external custom property values for a single named property across repositories that belong to an organization.

Up to 100 repository values can be updated in a single request. Repositories not included in the request are left unchanged.

Using a value of null for a repository will remove or 'unset' the property value for that repository. A request that only contains null values for a property that does not yet exist is a no-op.

To use this endpoint, the authenticated GitHub App must have the organization_external_properties_for_repos:write permission.

Fine-grained access tokens for "Create or update external custom property values for a property across organization repositories"

This endpoint works with the following fine-grained token types:

GitHub App installation access tokens

The fine-grained token must have the following permission set:

"External custom properties for repositories" organization permissions (write)

Parameters for "Create or update external custom property values for a property across organization repositories"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.
`property_name` string Required The name of the external custom property

Name, Type, Description

repository_values array of objects Required

The names of repositories and the values that the named external custom property will be set to.

Properties of repository_values

Name, Type, Description
`repository_name` string Required The name of the repository
`value` string or null Required The value assigned to the repository. Set to `null` to unset the value for this repository.

HTTP response status codes for "Create or update external custom property values for a property across organization repositories"

Status code	Description
`204`	A header with no content is returned.
`403`	Forbidden
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "Create or update external custom property values for a property across organization repositories"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

patch/orgs/{org}/properties/installations/values/{property_name}

curl -L \
  -X PATCH \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/installations/values/PROPERTY_NAME \
  -d '{"repository_values":[{"repository_name":"Hello-World","value":"production"},{"repository_name":"octo-repo","value":null}]}'

A header with no content is returned.

Status: 204

Remove all external custom property values for a property across all organization repositories

Removes all external custom property values for a specified property name across all repositories that belong to an organization.

To use this endpoint, the authenticated GitHub App must have the organization_external_properties_for_repos:write permission.

Fine-grained access tokens for "Remove all external custom property values for a property across all organization repositories"

This endpoint works with the following fine-grained token types:

GitHub App installation access tokens

The fine-grained token must have the following permission set:

"External custom properties for repositories" organization permissions (write)

Parameters for "Remove all external custom property values for a property across all organization repositories"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.
`property_name` string Required The name of the external custom property

HTTP response status codes for "Remove all external custom property values for a property across all organization repositories"

Status code	Description
`204`	A header with no content is returned.
`403`	Forbidden
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "Remove all external custom property values for a property across all organization repositories"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

delete/orgs/{org}/properties/installations/values/{property_name}

curl -L \
  -X DELETE \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/installations/values/PROPERTY_NAME

A header with no content is returned.

Status: 204

Get all custom properties for an organization

Gets all custom properties defined for an organization. Organization members can read these properties.

Fine-grained access tokens for "Get all custom properties for an organization"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Custom properties" organization permissions (read)

Parameters for "Get all custom properties for an organization"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

HTTP response status codes for "Get all custom properties for an organization"

Status code	Description
`200`	OK
`403`	Forbidden
`404`	Resource not found

Code samples for "Get all custom properties for an organization"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

get/orgs/{org}/properties/schema

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/schema

Response

Status: 200

[
  {
    "property_name": "environment",
    "url": "https://api.github.com/orgs/github/properties/schema/environment",
    "source_type": "organization",
    "value_type": "single_select",
    "required": true,
    "default_value": "production",
    "description": "Prod or dev environment",
    "allowed_values": [
      "production",
      "development"
    ],
    "values_editable_by": "org_actors",
    "require_explicit_values": true
  },
  {
    "property_name": "service",
    "url": "https://api.github.com/orgs/github/properties/schema/service",
    "source_type": "organization",
    "value_type": "string"
  },
  {
    "property_name": "team",
    "url": "https://api.github.com/orgs/github/properties/schema/team",
    "source_type": "organization",
    "value_type": "string",
    "description": "Team owning the repository"
  }
]

Create or update custom properties for an organization

Creates new or updates existing custom properties defined for an organization in a batch.

If the property already exists, the existing property will be replaced with the new values. Missing optional values will fall back to default values, previous values will be overwritten. E.g. if a property exists with values_editable_by: org_and_repo_actors and it's updated without specifying values_editable_by, it will be updated to default value org_actors.

To use this endpoint, the authenticated user must be one of:

An administrator for the organization.
A user, or a user on a team, with the fine-grained permission of custom_properties_org_definitions_manager in the organization.

Fine-grained access tokens for "Create or update custom properties for an organization"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Custom properties" organization permissions (admin)

Parameters for "Create or update custom properties for an organization"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

Name, Type, Description

properties array of objects Required

The array of custom properties to create or update.

Properties of properties

Name, Type, Description
`property_name` string Required The name of the property
`url` string The URL that can be used to fetch, update, or delete info about this property via the API.
`source_type` string The source type of the property Can be one of: `organization`, `enterprise`
`value_type` string Required The type of the value for the property Can be one of: `string`, `single_select`, `multi_select`, `true_false`, `url`
`required` boolean Whether the property is required.
`default_value` null or string or array Default value of the property
`description` string or null Short description of the property
`allowed_values` array of strings or null An ordered list of the allowed values of the property. The property can have up to 200 allowed values.
`values_editable_by` string or null Who can edit the values of the property Can be one of: `org_actors`, `org_and_repo_actors`, `null`
`require_explicit_values` boolean Whether setting properties values is mandatory

HTTP response status codes for "Create or update custom properties for an organization"

Status code	Description
`200`	OK
`403`	Forbidden
`404`	Resource not found

Code samples for "Create or update custom properties for an organization"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

patch/orgs/{org}/properties/schema

curl -L \
  -X PATCH \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/schema \
  -d '{"properties":[{"property_name":"environment","value_type":"single_select","required":true,"default_value":"production","description":"Prod or dev environment","allowed_values":["production","development"],"values_editable_by":"org_actors"},{"property_name":"service","value_type":"string"},{"property_name":"team","value_type":"string","description":"Team owning the repository"}]}'

Response

Status: 200

[
  {
    "property_name": "environment",
    "url": "https://api.github.com/orgs/github/properties/schema/environment",
    "source_type": "organization",
    "value_type": "single_select",
    "required": true,
    "default_value": "production",
    "description": "Prod or dev environment",
    "allowed_values": [
      "production",
      "development"
    ],
    "values_editable_by": "org_actors",
    "require_explicit_values": true
  },
  {
    "property_name": "service",
    "url": "https://api.github.com/orgs/github/properties/schema/service",
    "source_type": "organization",
    "value_type": "string"
  },
  {
    "property_name": "team",
    "url": "https://api.github.com/orgs/github/properties/schema/team",
    "source_type": "organization",
    "value_type": "string",
    "description": "Team owning the repository"
  }
]

Get a custom property for an organization

Gets a custom property that is defined for an organization. Organization members can read these properties.

Fine-grained access tokens for "Get a custom property for an organization"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Custom properties" organization permissions (read)

Parameters for "Get a custom property for an organization"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.
`custom_property_name` string Required The custom property name

HTTP response status codes for "Get a custom property for an organization"

Status code	Description
`200`	OK
`403`	Forbidden
`404`	Resource not found

Code samples for "Get a custom property for an organization"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

get/orgs/{org}/properties/schema/{custom_property_name}

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/schema/CUSTOM_PROPERTY_NAME

Response

Status: 200

{
  "property_name": "environment",
  "url": "https://api.github.com/orgs/github/properties/schema/environment",
  "source_type": "organization",
  "value_type": "single_select",
  "required": true,
  "default_value": "production",
  "description": "Prod or dev environment",
  "allowed_values": [
    "production",
    "development"
  ]
}

Create or update a custom property for an organization

Creates a new or updates an existing custom property that is defined for an organization.

To use this endpoint, the authenticated user must be one of:

An administrator for the organization.
A user, or a user on a team, with the fine-grained permission of custom_properties_org_definitions_manager in the organization.

Fine-grained access tokens for "Create or update a custom property for an organization"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Custom properties" organization permissions (admin)

Parameters for "Create or update a custom property for an organization"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.
`custom_property_name` string Required The custom property name

Body parameters
Name, Type, Description
`value_type` string Required The type of the value for the property Can be one of: `string`, `single_select`, `multi_select`, `true_false`, `url`
`required` boolean Whether the property is required.
`default_value` null or string or array Default value of the property
`description` string or null Short description of the property
`allowed_values` array of strings or null An ordered list of the allowed values of the property. The property can have up to 200 allowed values.
`values_editable_by` string or null Who can edit the values of the property Can be one of: `org_actors`, `org_and_repo_actors`, `null`
`require_explicit_values` boolean Whether setting properties values is mandatory

HTTP response status codes for "Create or update a custom property for an organization"

Status code	Description
`200`	OK
`403`	Forbidden
`404`	Resource not found

Code samples for "Create or update a custom property for an organization"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

put/orgs/{org}/properties/schema/{custom_property_name}

curl -L \
  -X PUT \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/schema/CUSTOM_PROPERTY_NAME \
  -d '{"value_type":"single_select","required":true,"default_value":"production","description":"Prod or dev environment","allowed_values":["production","development"]}'

Response

Status: 200

{
  "property_name": "environment",
  "url": "https://api.github.com/orgs/github/properties/schema/environment",
  "source_type": "organization",
  "value_type": "single_select",
  "required": true,
  "default_value": "production",
  "description": "Prod or dev environment",
  "allowed_values": [
    "production",
    "development"
  ]
}

Remove a custom property for an organization

Removes a custom property that is defined for an organization.

To use this endpoint, the authenticated user must be one of:

An administrator for the organization.
A user, or a user on a team, with the fine-grained permission of custom_properties_org_definitions_manager in the organization.

Fine-grained access tokens for "Remove a custom property for an organization"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Custom properties" organization permissions (admin)

Parameters for "Remove a custom property for an organization"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.
`custom_property_name` string Required The custom property name

HTTP response status codes for "Remove a custom property for an organization"

Status code	Description
`204`	A header with no content is returned.
`403`	Forbidden
`404`	Resource not found

Code samples for "Remove a custom property for an organization"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

delete/orgs/{org}/properties/schema/{custom_property_name}

curl -L \
  -X DELETE \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/schema/CUSTOM_PROPERTY_NAME

A header with no content is returned.

Status: 204

List custom property values for organization repositories

Lists organization repositories with all of their custom property values. Organization members can read these properties.

Fine-grained access tokens for "List custom property values for organization repositories"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Custom properties" organization permissions (read)

Parameters for "List custom property values for organization repositories"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

Query parameters
Name, Type, Description
`per_page` integer The number of results per page (max 100). For more information, see "Using pagination in the REST API." Default: `30`
`page` integer The page number of the results to fetch. For more information, see "Using pagination in the REST API." Default: `1`
`repository_query` string Finds repositories in the organization with a query containing one or more search keywords and qualifiers. Qualifiers allow you to limit your search to specific areas of GitHub Enterprise Cloud. The REST API supports the same qualifiers as the web interface for GitHub Enterprise Cloud. To learn more about the format of the query, see Constructing a search query. See "Searching for repositories" for a detailed list of qualifiers.

HTTP response status codes for "List custom property values for organization repositories"

Status code	Description
`200`	OK
`403`	Forbidden
`404`	Resource not found

Code samples for "List custom property values for organization repositories"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

get/orgs/{org}/properties/values

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/values

Response

Status: 200

[
  {
    "repository_id": 1296269,
    "repository_name": "Hello-World",
    "repository_full_name": "octocat/Hello-World",
    "properties": [
      {
        "property_name": "environment",
        "value": "production"
      },
      {
        "property_name": "service",
        "value": "web"
      },
      {
        "property_name": "team",
        "value": "octocat"
      }
    ]
  }
]

Create or update custom property values for organization repositories

Create new or update existing custom property values for repositories in a batch that belong to an organization. Each target repository will have its custom property values updated to match the values provided in the request.

A maximum of 30 repositories can be updated in a single request.

Using a value of null for a custom property will remove or 'unset' the property value from the repository.

To use this endpoint, the authenticated user must be one of:

An administrator for the organization.
A user, or a user on a team, with the fine-grained permission of custom_properties_org_values_editor in the organization.

Fine-grained access tokens for "Create or update custom property values for organization repositories"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Custom properties" organization permissions (write)

Parameters for "Create or update custom property values for organization repositories"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`org` string Required The organization name. The name is not case sensitive.

Name, Type, Description

repository_names array of strings Required

The names of repositories that the custom property values will be applied to.

properties array of objects Required

List of custom property names and associated values to apply to the repositories.

Properties of properties

Name, Type, Description
`property_name` string Required The name of the property
`value` null or string or array Required The value assigned to the property

HTTP response status codes for "Create or update custom property values for organization repositories"

Status code	Description
`204`	No Content when custom property values are successfully created or updated
`403`	Forbidden
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "Create or update custom property values for organization repositories"

If you access GitHub at GHE.com, replace api.github.com with your enterprise's dedicated subdomain at api.SUBDOMAIN.ghe.com.

Request example

patch/orgs/{org}/properties/values

curl -L \
  -X PATCH \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/orgs/ORG/properties/values \
  -d '{"repository_names":["Hello-World","octo-repo"],"properties":[{"property_name":"environment","value":"production"},{"property_name":"service","value":"web"},{"property_name":"team","value":"octocat"}]}'

No Content when custom property values are successfully created or updated

Status: 204