MCP Tools Reference: apikeys.googleapis.com

Tool: apikeys_create_key

Creates a new API key in the specified project. You can optionally specify restrictions.

The following code sample shows how to use curl to call the apikeys_create_key MCP tool.

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

Input Schema

Request message for CreateKey method.

CreateKeyRequest

JSON representation 
{
  "parent": string,
  "key": {
    object (Key)
  },
  "keyId": string
}
Fields
parent

string

Required. The project in which the API key is created. The parent field must be in format of "projects//locations/global".
key

object (Key)

Required. The API key fields to set at creation time. You can configure only the display_name, restrictions, and annotations fields.
keyId

string

User specified key id (optional). If specified, it will become the final component of the key resource name.

The id must be unique within the project, must conform with RFC-1034, is restricted to lower-cased letters, and has a maximum length of 63 characters. In another word, the id must match the regular expression: [a-z]([a-z0-9-]{0,61}[a-z0-9])?.

The id must NOT be a UUID-like string.

Key

JSON representation 
{
  "name": string,
  "uid": string,
  "displayName": string,
  "keyString": string,
  "createTime": string,
  "updateTime": string,
  "deleteTime": string,
  "annotations": {
    string: string,
    ...
  },
  "restrictions": {
    object (Restrictions)
  },
  "etag": string,
  "serviceAccountEmail": string
}
Fields
name

string

Identifier. The resource name of the key. The name has the form: projects/<PROJECT_NUMBER>/locations/global/keys/<KEY_ID>. For example: projects/123456867718/locations/global/keys/b7ff1f9f-8275-410a-94dd-3855ee9b5dd2

NOTE: Key is a global resource; hence the only supported value for location is global.
uid

string

Output only. Unique id in UUID4 format.
displayName

string

Human-readable display name of this key that you can modify. The maximum length is 63 characters.
keyString

string

Output only. An encrypted and signed value held by this key. This field can be accessed only through the GetKeyString method.
createTime

string (Timestamp format)

Output only. A timestamp identifying the time this key was originally 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. A timestamp identifying the time this key 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".
deleteTime

string (Timestamp format)

Output only. A timestamp when this key was deleted. If the resource is not deleted, this must be empty.

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".
annotations

map (key: string, value: string)

Annotations is an unstructured key-value map stored with a policy that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.

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

object (Restrictions)

Key restrictions.
etag

string

A checksum computed by the server based on the current value of the Key resource. This may be sent on update and delete requests to ensure the client has an up-to-date value before proceeding. See https://google.aip.dev/154.
serviceAccountEmail

string

Optional. The email address of the service account the key is bound to.

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.

AnnotationsEntry

JSON representation 
{
  "key": string,
  "value": string
}
Fields
key

string
value

string

Restrictions

JSON representation 
{
  "apiTargets": [
    {
      object (ApiTarget)
    }
  ],

  // Union field client_restrictions can be only one of the following:
  "browserKeyRestrictions": {
    object (BrowserKeyRestrictions)
  },
  "serverKeyRestrictions": {
    object (ServerKeyRestrictions)
  },
  "androidKeyRestrictions": {
    object (AndroidKeyRestrictions)
  },
  "iosKeyRestrictions": {
    object (IosKeyRestrictions)
  }
  // End of list of possible types for union field client_restrictions.
}
Fields
apiTargets[]

object (ApiTarget)

A restriction for a specific service and optionally one or more specific methods. Requests are allowed if they match any of these restrictions. If no restrictions are specified, all targets are allowed.
Union field client_restrictions. The websites, IP addresses, Android apps, or iOS apps (the clients) that are allowed to use the key. You can specify only one type of client restrictions per key. client_restrictions can be only one of the following:
browserKeyRestrictions

object (BrowserKeyRestrictions)

The HTTP referrers (websites) that are allowed to use the key.
serverKeyRestrictions

object (ServerKeyRestrictions)

The IP addresses of callers that are allowed to use the key.
androidKeyRestrictions

object (AndroidKeyRestrictions)

The Android apps that are allowed to use the key.
iosKeyRestrictions

object (IosKeyRestrictions)

The iOS apps that are allowed to use the key.

BrowserKeyRestrictions

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

string

A list of regular expressions for the referrer URLs that are allowed to make API calls with this key.

ServerKeyRestrictions

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

string

A list of the caller IP addresses that are allowed to make API calls with this key.

AndroidKeyRestrictions

JSON representation 
{
  "allowedApplications": [
    {
      object (AndroidApplication)
    }
  ]
}
Fields
allowedApplications[]

object (AndroidApplication)

A list of Android applications that are allowed to make API calls with this key.

AndroidApplication

JSON representation 
{
  "sha1Fingerprint": string,
  "packageName": string
}
Fields
sha1Fingerprint

string

The SHA1 fingerprint of the application. For example, both sha1 formats are acceptable : DA:39:A3:EE:5E:6B:4B:0D:32:55:BF:EF:95:60:18:90:AF:D8:07:09 or DA39A3EE5E6B4B0D3255BFEF95601890AFD80709. Output format is the latter.
packageName

string

The package name of the application.

IosKeyRestrictions

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

string

A list of bundle IDs that are allowed when making API calls with this key.

ApiTarget

JSON representation 
{
  "service": string,
  "methods": [
    string
  ]
}
Fields
service

string

The service for this restriction. It should be the canonical service name, for example: translate.googleapis.com. You can use gcloud services list to get a list of services that are enabled in the project.
methods[]

string

Optional. List of one or more methods that can be called. If empty, all methods for the service are allowed. A wildcard (*) can be used as the last symbol. Valid examples: google.cloud.translate.v2.TranslateService.GetSupportedLanguage TranslateText Get* translate.googleapis.com.Get*

Output Schema

This resource represents a long-running operation that is the result of a network API call.

Operation

JSON representation 
{
  "name": string,
  "metadata": {
    "@type": string,
    field1: ...,
    ...
  },
  "done": boolean,

  // Union field result can be only one of the following:
  "error": {
    object (Status)
  },
  "response": {
    "@type": string,
    field1: ...,
    ...
  }
  // End of list of possible types for union field result.
}
Fields
name

string

The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the name should be a resource name ending with operations/{unique_id}.
metadata

object

Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "types.example.com/standard/id" }.
done

boolean

If the value is false, it means the operation is still in progress. If true, the operation is completed, and either error or response is available.
Union field result. The operation result, which can be either an error or a valid response. If done == false, neither error nor response is set. If done == true, exactly one of error or response can be set. Some services might not provide the result. result can be only one of the following:
error

object (Status)

The error result of the operation in case of failure or cancellation.
response

object

The normal, successful response of the operation. If the original method returns no data on success, such as Delete, the response is google.protobuf.Empty. If the original method is standard Get/Create/Update, the response should be the resource. For other methods, the response should have the type XxxResponse, where Xxx is the original method name. For example, if the original method name is TakeSnapshot(), the inferred response type is TakeSnapshotResponse.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "types.example.com/standard/id" }.

Any

JSON representation 
{
  "typeUrl": string,
  "value": string
}
Fields
typeUrl

string

Identifies the type of the serialized Protobuf message with a URI reference consisting of a prefix ending in a slash and the fully-qualified type name.

Example: type.googleapis.com/google.protobuf.StringValue

This string must contain at least one / character, and the content after the last / must be the fully-qualified name of the type in canonical form, without a leading dot. Do not write a scheme on these URI references so that clients do not attempt to contact them.

The prefix is arbitrary and Protobuf implementations are expected to simply strip off everything up to and including the last / to identify the type. type.googleapis.com/ is a common default prefix that some legacy implementations require. This prefix does not indicate the origin of the type, and URIs containing it are not expected to respond to any requests.

All type URL strings must be legal URI references with the additional restriction (for the text format) that the content of the reference must consist only of alphanumeric characters, percent-encoded escapes, and characters in the following set (not including the outer backticks): /-.~_!$&()*+,;=. Despite our allowing percent encodings, implementations should not unescape them to prevent confusion with existing parsers. For example, type.googleapis.com%2FFoo should be rejected.

In the original design of Any, the possibility of launching a type resolution service at these type URLs was considered but Protobuf never implemented one and considers contacting these URLs to be problematic and a potential security issue. Do not attempt to contact type URLs.
value

string (bytes format)

Holds a Protobuf serialization of the type described by type_url.

A base64-encoded string.

Status

JSON representation 
{
  "code": integer,
  "message": string,
  "details": [
    {
      "@type": string,
      field1: ...,
      ...
    }
  ]
}
Fields
code

integer

The status code, which should be an enum value of google.rpc.Code.
message

string

A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
details[]

object

A list of messages that carry the error details. There is a common set of message types for APIs to use.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "types.example.com/standard/id" }.

Tool Annotations

Tool annotations are sent to MCP clients to describe the basic risk of a given tool. Most clients treat these hints as untrusted, but they can be used to decide when a confirmation prompt might be sent to a user.

Along with the title string, the following boolean hints are defined as follows:

  • readOnlyHint: If true, the tool doesn't modify its environment. Default: false.
  • destructiveHint: If true, then the tool can perform destructive actions. If false, then the tool can only perform additive actions. Default: true.
  • idempotentHint: If true, then calling the tool repeatedly with the same arguments will have no additional effect on its environment. Default: false.
  • openWorldHint: If true, then the tool can interact with an 'open world' of external entities. If false, then the tool can only interact with internal entities. For example, a web search tool would be open world, while a memory tool would not be open world.

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