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calendar.events.get

Retrieves one Google Calendar event by calendar and event ID, returning JSON details; use it to inspect a specific event without listing the whole calendar.

Instructions

Returns an event based on its Google Calendar ID. To retrieve an event using its iCalendar ID, call the events.list method using the iCalUID parameter [HTTP GET]. Returns the requested resource as JSON — request bodies are built from the typed parameters (typed flags win over the params map), or read whole from body_file Siblings over the same resource: delete, import, insert, instances, list, move, patch, quickAdd, update, watch.

Input Schema

Name	Required	Description
`query`	No	Extra KEY=VALUE query pairs for endpoints whose parameters Discovery does not describe.
`params`	No	Parameter map merged into the request; typed parameters win.
`dry_run`	No	Return the request that would be sent, without sending it.
`eventId`	Yes	[URL path segment] Event identifier.
`timeZone`	No	[query parameter] Time zone used in the response. Optional. The default is the time zone of the calendar.
`body_file`	No	Read the request body from this file ('-' for stdin) instead of building one from the parameters.
`calendarId`	Yes	[URL path segment] Calendar identifier. To retrieve calendar IDs call the calendarList.list method. If you want to access the primary calendar of the currently logged in user, use
`maxAttendees`	No	[query parameter] The maximum number of attendees to include in the response. If there are more than the specified number of attendees, only the participant is returned. Optional
`alwaysIncludeEmail`	No	[query parameter] Deprecated and ignored. A value will always be returned in the email field for the organizer, creator and attendees, even if no real email address is available

Output Schema

Name	Required	Description	Default
`id`	No
`end`	No
`etag`	No
`kind`	No
`start`	No
`gadget`	No
`locked`	No
`source`	No
`status`	No
`colorId`	No
`created`	No
`creator`	No
`iCalUID`	No
`summary`	No
`updated`	No
`htmlLink`	No
`location`	No
`sequence`	No
`attendees`	No
`eventType`	No
`organizer`	No
`reminders`	No
`recurrence`	No
`visibility`	No
`attachments`	No
`description`	No
`hangoutLink`	No
`privateCopy`	No
`eventLabelId`	No
`transparency`	No
`conferenceData`	No
`guestsCanModify`	No
`anyoneCanAddSelf`	No
`attendeesOmitted`	No
`recurringEventId`	No
`originalStartTime`	No
`birthdayProperties`	No
`endTimeUnspecified`	No
`extendedProperties`	No
`focusTimeProperties`	No
`guestsCanInviteOthers`	No
`outOfOfficeProperties`	No
`guestsCanSeeOtherGuests`	No
`workingLocationProperties`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed8 schema fields changedOct 26, 2026

changedInput schema / properties / alwaysIncludeEmail / description

Previous value: -"Deprecated and ignored. A value will always be returned in the email field for the organizer, creator and attendees, even if no real email address is available "New value: +"[query parameter] Deprecated and ignored. A value will always be returned in the email field for the organizer, creator and attendees, even if no real email address is available "

changedInput schema / properties / calendarId / description

Previous value: -"Calendar identifier. To retrieve calendar IDs call the calendarList.list method. If you want to access the primary calendar of the currently logged in user, use"New value: +"[URL path segment] Calendar identifier. To retrieve calendar IDs call the calendarList.list method. If you want to access the primary calendar of the currently logged in user, use"

changedInput schema / properties / eventId / description

Previous value: -"Event identifier."New value: +"[URL path segment] Event identifier."

changedInput schema / properties / maxAttendees / description

Previous value: -"The maximum number of attendees to include in the response. If there are more than the specified number of attendees, only the participant is returned. Optional"New value: +"[query parameter] The maximum number of attendees to include in the response. If there are more than the specified number of attendees, only the participant is returned. Optional"

addedInput schema / properties / maxAttendees / format
```
Added value: +"int32"
```
addedInput schema / properties / maxAttendees / minimum
```
Added value: +1
```

changedInput schema / properties / timeZone / description

Previous value: -"Time zone used in the response. Optional. The default is the time zone of the calendar."New value: +"[query parameter] Time zone used in the response. Optional. The default is the time zone of the calendar."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "anyoneCanAddSelf": {
+      "type": "boolean"
+    },
+    "attachments": {
+      "items": {
+        "properties": {
+          "fileId": {
+            "type": "string"
+          },
+          "fileUrl": {
+            "type": "string"
+          },
+          "iconLink": {
+            "type": "string"
+          },
+          "mimeType": {
+            "type": "string"
+          },
+          "title": {
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "attendees": {
+      "items": {
+        "properties": {
+          "additionalGuests": {
+            "type": "integer"
+          },
+          "asyncOperation": {
+            "type": "string"
+          },
+          "comment": {
+            "type": "string"
+          },
+          "displayName": {
+            "type": "string"
+          },
+          "email": {
+            "type": "string"
+          },
+          "id": {
+            "type": "string"
+          },
+          "optional": {
+            "type": "boolean"
+          },
+          "organizer": {
+            "type": "boolean"
+          },
+          "resource": {
+            "type": "boolean"
+          },
+          "responseStatus": {
+            "type": "string"
+          },
+          "self": {
+            "type": "boolean"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "attendeesOmitted": {
+      "type": "boolean"
+    },
+    "birthdayProperties": {
+      "properties": {
+        "contact": {
+          "type": "string"
+        },
+        "customTypeName": {
+          "type": "string"
+        },
+        "type": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "colorId": {
+      "type": "string"
+    },
+    "conferenceData": {
+      "properties": {
+        "conferenceId": {
+          "type": "string"
+        },
+        "conferenceSolution": {
+          "properties": {
+            "iconUri": {
+              "type": "string"
+            },
+            "key": {
+              "properties": {
+                "type": {
+                  "type": "string"
+                }
+              },
+              "type": "object"
+            },
+            "name": {
+              "type": "string"
+            }
+          },
+          "type": "object"
+        },
+        "createRequest": {
+          "properties": {
+            "conferenceSolutionKey": {
+              "properties": {
+                "type": {
+                  "type": "string"
+                }
+              },
+              "type": "object"
+            },
+            "requestId": {
+              "type": "string"
+            },
+            "status": {
+              "properties": {
+                "statusCode": {
+                  "type": "string"
+                }
+              },
+              "type": "object"
+            }
+          },
+          "type": "object"
+        },
+        "entryPoints": {
+          "items": {
+            "properties": {
+              "accessCode": {
+                "type": "string"
+              },
+              "entryPointFeatures": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "entryPointType": {
+                "type": "string"
+              },
+              "label": {
+                "type": "string"
+              },
+              "meetingCode": {
+                "type": "string"
+              },
+              "passcode": {
+                "type": "string"
+              },
+              "password": {
+                "type": "string"
+              },
+              "pin": {
+                "type": "string"
+              },
+              "regionCode": {
+                "type": "string"
+              },
+              "uri": {
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "notes": {
+          "type": "string"
+        },
+        "parameters": {
+          "properties": {
+            "addOnParameters": {
+              "properties": {
+                "parameters": {
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            }
+          },
+          "type": "object"
+        },
+        "signature": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "created": {
+      "type": "string"
+    },
+    "creator": {
+      "properties": {
+        "displayName": {
+          "type": "string"
+        },
+        "email": {
+          "type": "string"
+        },
+        "id": {
+          "type": "string"
+        },
+        "self": {
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "description": {
+      "type": "string"
+    },
+    "end": {
+      "properties": {
+        "date": {
+          "type": "string"
+        },
+        "dateTime": {
+          "type": "string"
+        },
+        "timeZone": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "endTimeUnspecified": {
+      "type": "boolean"
+    },
+    "etag": {
+      "type": "string"
+    },
+    "eventLabelId": {
+      "type": "string"
+    },
+    "eventType": {
+      "type": "string"
+    },
+    "extendedProperties": {
+      "properties": {
+        "private": {
+          "type": "object"
+        },
+        "shared": {
+          "type": "object"
+        }
+      },
+      "type": "object"
+    },
+    "focusTimeProperties": {
+      "properties": {
+        "autoDeclineMode": {
+          "type": "string"
+        },
+        "chatStatus": {
+          "type": "string"
+        },
+        "declineMessage": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "gadget": {
+      "properties": {
+        "display": {
+          "type": "string"
+        },
+        "height": {
+          "type": "integer"
+        },
+        "iconLink": {
+          "type": "string"
+        },
+        "link": {
+          "type": "string"
+        },
+        "preferences": {
+          "type": "object"
+        },
+        "title": {
+          "type": "string"
+        },
+        "type": {
+          "type": "string"
+        },
+        "width": {
+          "type": "integer"
+        }
+      },
+      "type": "object"
+    },
+    "guestsCanInviteOthers": {
+      "type": "boolean"
+    },
+    "guestsCanModify": {
+      "type": "boolean"
+    },
+    "guestsCanSeeOtherGuests": {
+      "type": "boolean"
+    },
+    "hangoutLink": {
+      "type": "string"
+    },
+    "htmlLink": {
+      "type": "string"
+    },
+    "iCalUID": {
+      "type": "string"
+    },
+    "id": {
+      "type": "string"
+    },
+    "kind": {
+      "type": "string"
+    },
+    "location": {
+      "type": "string"
+    },
+    "locked": {
+      "type": "boolean"
+    },
+    "organizer": {
+      "properties": {
+        "displayName": {
+          "type": "string"
+        },
+        "email": {
+          "type": "string"
+        },
+        "id": {
+          "type": "string"
+        },
+        "self": {
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "originalStartTime": {
+      "properties": {
+        "date": {
+          "type": "string"
+        },
+        "dateTime": {
+          "type": "string"
+        },
+        "timeZone": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "outOfOfficeProperties": {
+      "properties": {
+        "autoDeclineMode": {
+          "type": "string"
+        },
+        "declineMessage": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "privateCopy": {
+      "type": "boolean"
+    },
+    "recurrence": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "recurringEventId": {
+      "type": "string"
+    },
+    "reminders": {
+      "properties": {
+        "overrides": {
+          "items": {
+            "properties": {
+              "method": {
+                "type": "string"
+              },
+              "minutes": {
+                "type": "integer"
+              }
+            },
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "useDefault": {
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "sequence": {
+      "type": "integer"
+    },
+    "source": {
+      "properties": {
+        "title": {
+          "type": "string"
+        },
+        "url": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "start": {
+      "properties": {
+        "date": {
+          "type": "string"
+        },
+        "dateTime": {
+          "type": "string"
+        },
+        "timeZone": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "status": {
+      "type": "string"
+    },
+    "summary": {
+      "type": "string"
+    },
+    "transparency": {
+      "type": "string"
+    },
+    "updated": {
+      "type": "string"
+    },
+    "visibility": {
+      "type": "string"
+    },
+    "workingLocationProperties": {
+      "properties": {
+        "customLocation": {
+          "properties": {
+            "label": {
+              "type": "string"
+            }
+          },
+          "type": "object"
+        },
+        "homeOffice": {
+          "type": "any"
+        },
+        "officeLocation": {
+          "properties": {
+            "buildingId": {
+              "type": "string"
+            },
+            "deskId": {
+              "type": "string"
+            },
+            "floorId": {
+              "type": "string"
+            },
+            "floorSectionId": {
+              "type": "string"
+            },
+            "label": {
+              "type": "string"
+            }
+          },
+          "type": "object"
+        },
+        "type": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

First observedOct 26, 2026

TDQS

A3.8/5.0

Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, and the description adds some behavioral context: HTTP GET, JSON response, and generic body-building behavior. However, it does not state authorization requirements, error behavior, or explicitly confirm that this is a read-only, non-mutating operation beyond the GET indication.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The first sentence is well front-loaded, and the iCalendar alternative is useful. However, the generic request-body sentence is largely irrelevant for a GET event retrieval tool, and the sibling list is a long enumeration rather than targeted guidance.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has an output schema, so return-value details are not required. The description covers the core retrieval behavior and the main ID-based alternative, though it omits permission/error context that could matter for calendar access.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all parameters. The description adds the Google Calendar ID versus iCalendar ID distinction, but does not add meaningful detail for the other parameters such as timeZone, maxAttendees, or body_file.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource: it returns a Google Calendar event by ID. It also distinguishes this from retrieving by iCalendar ID by pointing to events.list with iCalUID, so an agent can differentiate the primary sibling case.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives a clear usage condition and names the alternative: use events.list with iCalUID for iCalendar IDs. It does not fully map every sibling operation to its use case, but the key retrieval distinction is explicit.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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