MCP Tools Reference: apihub.googleapis.com

Tool: list_apis

List API resources in the API hub.

The following sample demonstrate how to use curl to invoke the list_apis MCP tool.

Curl Request 
                  
curl --location 'https://apihub.REGION.rep.googleapis.com/mcp' \
--header 'content-type: application/json' \
--header 'accept: application/json, text/event-stream' \
--data '{
  "method": "tools/call",
  "params": {
    "name": "list_apis",
    "arguments": {
      // provide these details according to the tool's MCP specification
    }
  },
  "jsonrpc": "2.0",
  "id": 1
}'

Where, REGION is the supported API hub region. For more information, see Supported regions.

Input Schema

The ListApis method's request.

ListApisRequest

JSON representation 
{
  "parent": string,
  "filter": string,
  "pageSize": integer,
  "pageToken": string
}
Fields
parent

string

Required. The parent, which owns this collection of API resources. Format: projects/{project}/locations/{location}
filter

string

Optional. An expression that filters the list of ApiResources.

A filter expression consists of a field name, a comparison operator, and a value for filtering. The value must be a string. The comparison operator must be one of: <, >, : or =. Filters are not case sensitive.

The following fields in the ApiResource are eligible for filtering:

  • owner.email - The email of the team which owns the ApiResource. Allowed comparison operators: =.
  • create_time - The time at which the ApiResource was created. The value should be in the (RFC3339)[https://tools.ietf.org/html/rfc3339] format. Allowed comparison operators: > and <.
  • display_name - The display name of the ApiResource. Allowed comparison operators: =.
  • target_user.enum_values.values.id - The allowed value id of the target users attribute associated with the ApiResource. Allowed comparison operator is :.
  • target_user.enum_values.values.display_name - The allowed value display name of the target users attribute associated with the ApiResource. Allowed comparison operator is :.
  • team.enum_values.values.id - The allowed value id of the team attribute associated with the ApiResource. Allowed comparison operator is :.
  • team.enum_values.values.display_name - The allowed value display name of the team attribute associated with the ApiResource. Allowed comparison operator is :.
  • business_unit.enum_values.values.id - The allowed value id of the business unit attribute associated with the ApiResource. Allowed comparison operator is :.
  • business_unit.enum_values.values.display_name - The allowed value display name of the business unit attribute associated with the ApiResource. Allowed comparison operator is :.
  • maturity_level.enum_values.values.id - The allowed value id of the maturity level attribute associated with the ApiResource. Allowed comparison operator is :.
  • maturity_level.enum_values.values.display_name - The allowed value display name of the maturity level attribute associated with the ApiResource. Allowed comparison operator is :.
  • api_style.enum_values.values.id - The allowed value id of the api style attribute associated with the ApiResource. Allowed comparison operator is :.
  • api_style.enum_values.values.display_name - The allowed value display name of the api style attribute associated with the ApiResource. Allowed comparison operator is :.
  • attributes.projects/test-project-id/locations/test-location-id/ attributes/user-defined-attribute-id.enum_values.values.id - The allowed value id of the user defined enum attribute associated with the Resource. Allowed comparison operator is :. Here user-defined-attribute-enum-id is a placeholder that can be replaced with any user defined enum attribute name.
  • attributes.projects/test-project-id/locations/test-location-id/ attributes/user-defined-attribute-id.enum_values.values.display_name
  • The allowed value display name of the user defined enum attribute associated with the Resource. Allowed comparison operator is :. Here user-defined-attribute-enum-display-name is a placeholder that can be replaced with any user defined enum attribute enum name.
  • attributes.projects/test-project-id/locations/test-location-id/ attributes/user-defined-attribute-id.string_values.values - The allowed value of the user defined string attribute associated with the Resource. Allowed comparison operator is :. Here user-defined-attribute-string is a placeholder that can be replaced with any user defined string attribute name.
  • attributes.projects/test-project-id/locations/test-location-id/ attributes/user-defined-attribute-id.json_values.values - The allowed value of the user defined JSON attribute associated with the Resource. Allowed comparison operator is :. Here user-defined-attribute-json is a placeholder that can be replaced with any user defined JSON attribute name.

A filter function is also supported in the filter string. The filter function is id(name). The id(name) function returns the id of the resource name. For example, id(name) = \"api-1\" is equivalent to name = \"projects/test-project-id/locations/test-location-id/apis/api-1\" provided the parent is projects/test-project-id/locations/test-location-id.

Another supported filter function is plugins(source_metadata). This function filters for resources that are associated with a specific plugin. For example, plugins(source_metadata) : "projects/test-project-id/locations/test-location-id/plugins/test-plugin-id" will return resources sourced from the given plugin.

Expressions are combined with either AND logic operator or OR logical operator but not both of them together i.e. only one of the AND or OR operator can be used throughout the filter string and both the operators cannot be used together. No other logical operators are supported. At most three filter fields are allowed in the filter string and if provided more than that then INVALID_ARGUMENT error is returned by the API.

Here are a few examples:

  • owner.email = \"apihub@google.com\" - - The owner team email is _apihub@google.com_.
  • owner.email = \"apihub@google.com\" AND create_time < \"2021-08-15T14:50:00Z\" AND create_time > \"2021-08-10T12:00:00Z\" - The owner team email is _apihub@google.com_ and the api was created before 2021-08-15 14:50:00 UTC and after 2021-08-10 12:00:00 UTC.
  • owner.email = \"apihub@google.com\" OR team.enum_values.values.id: apihub-team-id - The filter string specifies the APIs where the owner team email is _apihub@google.com_ or the id of the allowed value associated with the team attribute is apihub-team-id.
  • owner.email = \"apihub@google.com\" OR team.enum_values.values.display_name: ApiHub Team - The filter string specifies the APIs where the owner team email is _apihub@google.com_ or the display name of the allowed value associated with the team attribute is ApiHub Team.
  • owner.email = \"apihub@google.com\" AND attributes.projects/test-project-id/locations/test-location-id/ attributes/17650f90-4a29-4971-b3c0-d5532da3764b.enum_values.values.id: test_enum_id AND attributes.projects/test-project-id/locations/test-location-id/ attributes/1765\0f90-4a29-5431-b3d0-d5532da3764c.string_values.values: test_string_value - The filter string specifies the APIs where the owner team email is _apihub@google.com_ and the id of the allowed value associated with the user defined attribute of type enum is test_enum_id and the value of the user defined attribute of type string is test..
pageSize

integer

Optional. The maximum number of API resources to return. The service may return fewer than this value. If unspecified, at most 50 Apis will be returned. The maximum value is 1000; values above 1000 will be coerced to 1000.
pageToken

string

Optional. A page token, received from a previous ListApis call. Provide this to retrieve the subsequent page.

When paginating, all other parameters (except page_size) provided to ListApis must match the call that provided the page token.

Output Schema

The ListApis method's response.

ListApisResponse

JSON representation 
{
  "apis": [
    {
      object (Api)
    }
  ],
  "nextPageToken": string
}
Fields
apis[]

object (Api)

The API resources present in the API hub.
nextPageToken

string

A token, which can be sent as page_token to retrieve the next page. If this field is omitted, there are no subsequent pages.

Api

JSON representation 
{
  "name": string,
  "displayName": string,
  "description": string,
  "documentation": {
    object (Documentation)
  },
  "owner": {
    object (Owner)
  },
  "versions": [
    string
  ],
  "createTime": string,
  "updateTime": string,
  "targetUser": {
    object (AttributeValues)
  },
  "team": {
    object (AttributeValues)
  },
  "businessUnit": {
    object (AttributeValues)
  },
  "maturityLevel": {
    object (AttributeValues)
  },
  "attributes": {
    string: {
      object (AttributeValues)
    },
    ...
  },
  "apiStyle": {
    object (AttributeValues)
  },
  "selectedVersion": string,
  "apiRequirements": {
    object (AttributeValues)
  },
  "fingerprint": string,
  "sourceMetadata": [
    {
      object (SourceMetadata)
    }
  ],
  "apiFunctionalRequirements": {
    object (AttributeValues)
  },
  "apiTechnicalRequirements": {
    object (AttributeValues)
  }
}
Fields
name

string

Identifier. The name of the API resource in the API Hub.

Format: projects/{project}/locations/{location}/apis/{api}
displayName

string

Required. The display name of the API resource.
description

string

Optional. The description of the API resource.
documentation

object (Documentation)

Optional. The documentation for the API resource.
owner

object (Owner)

Optional. Owner details for the API resource.
versions[]

string

Output only. The list of versions present in an API resource. Note: An API resource can be associated with more than 1 version. Format is projects/{project}/locations/{location}/apis/{api}/versions/{version}
createTime

string (Timestamp format)

Output only. The time at which the API resource was created.

Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
updateTime

string (Timestamp format)

Output only. The time at which the API resource was last updated.

Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
targetUser

object (AttributeValues)

Optional. The target users for the API. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-target-user attribute. The number of values for this attribute will be based on the cardinality of the attribute. The same can be retrieved via GetAttribute API. All values should be from the list of allowed values defined for the attribute.
team

object (AttributeValues)

Optional. The team owning the API. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-team attribute. The number of values for this attribute will be based on the cardinality of the attribute. The same can be retrieved via GetAttribute API. All values should be from the list of allowed values defined for the attribute.
businessUnit

object (AttributeValues)

Optional. The business unit owning the API. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-business-unit attribute. The number of values for this attribute will be based on the cardinality of the attribute. The same can be retrieved via GetAttribute API. All values should be from the list of allowed values defined for the attribute.
maturityLevel

object (AttributeValues)

Optional. The maturity level of the API. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-maturity-level attribute. The number of values for this attribute will be based on the cardinality of the attribute. The same can be retrieved via GetAttribute API. All values should be from the list of allowed values defined for the attribute.
attributes

map (key: string, value: object (AttributeValues))

Optional. The list of user defined attributes associated with the API resource. The key is the attribute name. It will be of the format: projects/{project}/locations/{location}/attributes/{attribute}. The value is the attribute values associated with the resource.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
apiStyle

object (AttributeValues)

Optional. The style of the API. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-api-style attribute. The number of values for this attribute will be based on the cardinality of the attribute. The same can be retrieved via GetAttribute API. All values should be from the list of allowed values defined for the attribute.
selectedVersion

string

Optional. The selected version for an API resource. This can be used when special handling is needed on client side for particular version of the API. Format is projects/{project}/locations/{location}/apis/{api}/versions/{version}
apiRequirements

object (AttributeValues)

Optional. The api requirement doc associated with the API resource. Carinality is 1 for this attribute. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-api-requirements attribute. The value of the attribute should be a proper URI, and in case of Cloud Storage URI, it should point to a Cloud Storage object, not a directory.
fingerprint

string

Optional. Fingerprint of the API resource. This must be unique for each API resource. It can neither be unset nor be updated to an existing fingerprint of another API resource.
sourceMetadata[]

object (SourceMetadata)

Output only. The list of sources and metadata from the sources of the API resource.
apiFunctionalRequirements

object (AttributeValues)

Optional. The api functional requirements associated with the API resource. Carinality is 1 for this attribute. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-api-functional-requirements attribute. The value of the attribute should be a proper URI, and in case of Cloud Storage URI, it should point to a Cloud Storage object, not a directory.
apiTechnicalRequirements

object (AttributeValues)

Optional. The api technical requirements associated with the API resource. Carinality is 1 for this attribute. This maps to the following system defined attribute: projects/{project}/locations/{location}/attributes/system-api-technical-requirements attribute. The value of the attribute should be a proper URI, and in case of Cloud Storage URI, it should point to a Cloud Storage object, not a directory.

Documentation

JSON representation 
{
  "externalUri": string
}
Fields
externalUri

string

Optional. The uri of the externally hosted documentation.

Owner

JSON representation 
{
  "displayName": string,
  "email": string
}
Fields
displayName

string

Optional. The name of the owner.
email

string

Required. The email of the owner.

Timestamp

JSON representation 
{
  "seconds": string,
  "nanos": integer
}
Fields
seconds

string (int64 format)

Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z. Must be between -62135596800 and 253402300799 inclusive (which corresponds to 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z).
nanos

integer

Non-negative fractions of a second at nanosecond resolution. This field is the nanosecond portion of the duration, not an alternative to seconds. Negative second values with fractions must still have non-negative nanos values that count forward in time. Must be between 0 and 999,999,999 inclusive.

AttributeValues

JSON representation 
{
  "attribute": string,

  // Union field Value can be only one of the following:
  "enumValues": {
    object (EnumAttributeValues)
  },
  "stringValues": {
    object (StringAttributeValues)
  },
  "jsonValues": {
    object (StringAttributeValues)
  },
  "uriValues": {
    object (StringAttributeValues)
  }
  // End of list of possible types for union field Value.
}
Fields
attribute

string

Output only. The name of the attribute. Format: projects/{project}/locations/{location}/attributes/{attribute}
Union field Value. The attribute values associated with the resource. Value can be only one of the following:
enumValues

object (EnumAttributeValues)

The attribute values associated with a resource in case attribute data type is enum.
stringValues

object (StringAttributeValues)

The attribute values associated with a resource in case attribute data type is string.
jsonValues

object (StringAttributeValues)

The attribute values associated with a resource in case attribute data type is JSON.
uriValues

object (StringAttributeValues)

The attribute values associated with a resource in case attribute data type is URL, URI or IP, like gs://bucket-name/object-name.

EnumAttributeValues

JSON representation 
{
  "values": [
    {
      object (AllowedValue)
    }
  ]
}
Fields
values[]

object (AllowedValue)

Required. The attribute values in case attribute data type is enum.

AllowedValue

JSON representation 
{
  "id": string,
  "displayName": string,
  "description": string,
  "immutable": boolean
}
Fields
id

string

Required. The ID of the allowed value. * If provided, the same will be used. The service will throw an error if the specified id is already used by another allowed value in the same attribute resource. * If not provided, a system generated id derived from the display name will be used. In this case, the service will handle conflict resolution by adding a system generated suffix in case of duplicates.

This value should be 4-63 characters, and valid characters are /[a-z][0-9]-/.
displayName

string

Required. The display name of the allowed value.
description

string

Optional. The detailed description of the allowed value.
immutable

boolean

Optional. When set to true, the allowed value cannot be updated or deleted by the user. It can only be true for System defined attributes.

StringAttributeValues

JSON representation 
{
  "values": [
    string
  ]
}
Fields
values[]

string

Required. The attribute values in case attribute data type is string or JSON.

AttributesEntry

JSON representation 
{
  "key": string,
  "value": {
    object (AttributeValues)
  }
}
Fields
key

string
value

object (AttributeValues)

SourceMetadata

JSON representation 
{
  "sourceType": enum (SourceType),
  "originalResourceId": string,
  "originalResourceCreateTime": string,
  "originalResourceUpdateTime": string,

  // Union field source can be only one of the following:
  "pluginInstanceActionSource": {
    object (PluginInstanceActionSource)
  }
  // End of list of possible types for union field source.
}
Fields
sourceType

enum (SourceType)

Output only. The type of the source.
originalResourceId

string

Output only. The unique identifier of the resource at the source.
originalResourceCreateTime

string (Timestamp format)

Output only. The time at which the resource was created at the source.

Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
originalResourceUpdateTime

string (Timestamp format)

Output only. The time at which the resource was last updated at the source.

Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
Union field source. The source of the resource. source can be only one of the following:
pluginInstanceActionSource

object (PluginInstanceActionSource)

Output only. The source of the resource is a plugin instance action.

PluginInstanceActionSource

JSON representation 
{
  "pluginInstance": string,
  "actionId": string
}
Fields
pluginInstance

string

Output only. The resource name of the source plugin instance. Format is projects/{project}/locations/{location}/plugins/{plugin}/instances/{instance}
actionId

string

Output only. The id of the plugin instance action.

Tool Annotations

Destructive Hint: ❌ | Idempotent Hint: ✅ | Read Only Hint: ✅ | Open World Hint: ❌