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calendar.events.list

Retrieve events from a specified Google Calendar using time-range, search, event-type, and recurrence filters to find the schedule you need.

Instructions

Returns events on the specified calendar [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, get, import, insert, instances, move, patch, quickAdd, update, watch.

Input Schema

Name	Required	Description	Default
`q`	No	[query parameter] Free text search terms to find events that match these terms in the following fields: - summary - description - location - attendee's displayName - attendee's e
`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.
`iCalUID`	No	[query parameter] Specifies an event ID in the iCalendar format to be provided in the response. Optional. Use this if you want to search for an event by its iCalendar ID.
`orderBy`	No	[query parameter] The order of the events returned in the result. Optional. The default is an unspecified, stable order. Values: `startTime` = Order by the start date/time (ascending). This is only available when querying single events (i.e. the parameter singleEvents is True); `updated` = Order by last modification time (ascending)..
`timeMax`	No	[query parameter] Upper bound (exclusive) for an event's start time to filter by. Optional. The default is not to filter by start time. Must be an RFC3339 timestamp with mandator
`timeMin`	No	[query parameter] Lower bound (exclusive) for an event's end time to filter by. Optional. The default is not to filter by end time. Must be an RFC3339 timestamp with mandatory ti
`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.
`pageToken`	No	[query parameter] Token specifying which result page to return. Optional.
`syncToken`	No	[query parameter] Token obtained from the nextSyncToken field returned on the last page of results from the previous list request. It makes the result of this list request contai
`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
`eventTypes`	No
`maxResults`	No	[query parameter] Maximum number of events returned on one result page. The number of events in the resulting page may be less than this value, or none at all, even if there are	250
`updatedMin`	No	[query parameter] Lower bound for an event's last modification time (as a RFC3339 timestamp) to filter by. When specified, entries deleted since this time will always be included
`showDeleted`	No	[query parameter] Whether to include deleted events (with status equals "cancelled") in the result. Cancelled instances of recurring events (but not the underlying recurring even
`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
`singleEvents`	No	[query parameter] Whether to expand recurring events into instances and only return single one-off events and instances of recurring events, but not the underlying recurring even
`alwaysIncludeEmail`	No	[query parameter] Deprecated and ignored.
`showHiddenInvitations`	No	[query parameter] Whether to include hidden invitations in the result. Optional. The default is False.
`sharedExtendedProperty`	No
`privateExtendedProperty`	No

Output Schema

Name	Required	Description	Default
`etag`	No
`kind`	No
`items`	No
`summary`	No
`updated`	No
`timeZone`	No
`accessRole`	No
`description`	No
`nextPageToken`	No
`nextSyncToken`	No
`defaultReminders`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed28 schema fields changedOct 26, 2026

changedInput schema / properties / alwaysIncludeEmail / description

Previous value: -"Deprecated and ignored."New value: +"[query parameter] Deprecated and ignored."

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 / eventTypes / items / description

Previous value: -"Event types to return. Optional. This parameter can be repeated multiple times to return events of different types. If unset, returns all event types."New value: +"[query parameter] Event types to return. Optional. This parameter can be repeated multiple times to return events of different types. If unset, returns all event types. Values: `birthday` = Special all-day events with an annual recurrence.; `default` = Regular events.; `focusTime` = Focus time events.; `fromGmail` = Events from Gmail.; `outOfOffice` = Out of office events.; `workingLocation` = Working location events.."

changedInput schema / properties / iCalUID / description

Previous value: -"Specifies an event ID in the iCalendar format to be provided in the response. Optional. Use this if you want to search for an event by its iCalendar ID."New value: +"[query parameter] Specifies an event ID in the iCalendar format to be provided in the response. Optional. Use this if you want to search for an event by its iCalendar ID."

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
```
addedInput schema / properties / maxResults / default
```
Added value: +"250"
```

changedInput schema / properties / maxResults / description

Previous value: -"Maximum number of events returned on one result page. The number of events in the resulting page may be less than this value, or none at all, even if there are "New value: +"[query parameter] Maximum number of events returned on one result page. The number of events in the resulting page may be less than this value, or none at all, even if there are "

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

changedInput schema / properties / orderBy / description

Previous value: -"The order of the events returned in the result. Optional. The default is an unspecified, stable order."New value: +"[query parameter] The order of the events returned in the result. Optional. The default is an unspecified, stable order. Values: `startTime` = Order by the start date/time (ascending). This is only available when querying single events (i.e. the parameter singleEvents is True); `updated` = Order by last modification time (ascending).."

changedInput schema / properties / pageToken / description

Previous value: -"Token specifying which result page to return. Optional."New value: +"[query parameter] Token specifying which result page to return. Optional."

changedInput schema / properties / privateExtendedProperty / items / description

Previous value: -"Extended properties constraint specified as propertyName=value. Matches only private properties. This parameter might be repeated multiple times to return event"New value: +"[query parameter] Extended properties constraint specified as propertyName=value. Matches only private properties. This parameter might be repeated multiple times to return event"

changedInput schema / properties / q / description

Previous value: -"Free text search terms to find events that match these terms in the following fields: - summary - description - location - attendee's displayName - attendee's e"New value: +"[query parameter] Free text search terms to find events that match these terms in the following fields: - summary - description - location - attendee's displayName - attendee's e"

changedInput schema / properties / sharedExtendedProperty / items / description

Previous value: -"Extended properties constraint specified as propertyName=value. Matches only shared properties. This parameter might be repeated multiple times to return events"New value: +"[query parameter] Extended properties constraint specified as propertyName=value. Matches only shared properties. This parameter might be repeated multiple times to return events"

changedInput schema / properties / showDeleted / description

Previous value: -"Whether to include deleted events (with status equals \"cancelled\") in the result. Cancelled instances of recurring events (but not the underlying recurring even"New value: +"[query parameter] Whether to include deleted events (with status equals \"cancelled\") in the result. Cancelled instances of recurring events (but not the underlying recurring even"

changedInput schema / properties / showHiddenInvitations / description

Previous value: -"Whether to include hidden invitations in the result. Optional. The default is False."New value: +"[query parameter] Whether to include hidden invitations in the result. Optional. The default is False."

changedInput schema / properties / singleEvents / description

Previous value: -"Whether to expand recurring events into instances and only return single one-off events and instances of recurring events, but not the underlying recurring even"New value: +"[query parameter] Whether to expand recurring events into instances and only return single one-off events and instances of recurring events, but not the underlying recurring even"

changedInput schema / properties / syncToken / description

Previous value: -"Token obtained from the nextSyncToken field returned on the last page of results from the previous list request. It makes the result of this list request contai"New value: +"[query parameter] Token obtained from the nextSyncToken field returned on the last page of results from the previous list request. It makes the result of this list request contai"

changedInput schema / properties / timeMax / description

Previous value: -"Upper bound (exclusive) for an event's start time to filter by. Optional. The default is not to filter by start time. Must be an RFC3339 timestamp with mandator"New value: +"[query parameter] Upper bound (exclusive) for an event's start time to filter by. Optional. The default is not to filter by start time. Must be an RFC3339 timestamp with mandator"

addedInput schema / properties / timeMax / format
```
Added value: +"date-time"
```

changedInput schema / properties / timeMin / description

Previous value: -"Lower bound (exclusive) for an event's end time to filter by. Optional. The default is not to filter by end time. Must be an RFC3339 timestamp with mandatory ti"New value: +"[query parameter] Lower bound (exclusive) for an event's end time to filter by. Optional. The default is not to filter by end time. Must be an RFC3339 timestamp with mandatory ti"

addedInput schema / properties / timeMin / format
```
Added value: +"date-time"
```

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."

changedInput schema / properties / updatedMin / description

Previous value: -"Lower bound for an event's last modification time (as a RFC3339 timestamp) to filter by. When specified, entries deleted since this time will always be included"New value: +"[query parameter] Lower bound for an event's last modification time (as a RFC3339 timestamp) to filter by. When specified, entries deleted since this time will always be included"

addedInput schema / properties / updatedMin / format
```
Added value: +"date-time"
```

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "accessRole": {
+      "type": "string"
+    },
+    "defaultReminders": {
+      "items": {
+        "properties": {
+          "method": {
+            "type": "string"
+          },
+          "minutes": {
+            "type": "integer"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "description": {
+      "type": "string"
+    },
+    "etag": {
+      "type": "string"
+    },
+    "items": {
+      "items": {
+        "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": {
+                    "type": "object"
+                  },
+                  "name": {
+                    "type": "string"
+                  }
+                },
+                "type": "object"
+              },
+              "createRequest": {
+                "properties": {
+                  "conferenceSolutionKey": {
+                    "type": "object"
+                  },
+                  "requestId": {
+                    "type": "string"
+                  },
+                  "status": {
+                    "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": {
+                    "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"
+      },
+      "type": "array"
+    },
+    "kind": {
+      "type": "string"
+    },
+    "nextPageToken": {
+      "type": "string"
+    },
+    "nextSyncToken": {
+      "type": "string"
+    },
+    "summary": {
+      "type": "string"
+    },
+    "timeZone": {
+      "type": "string"
+    },
+    "updated": {
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

First observedOct 26, 2026

TDQS

C2.8/5.0

Behavior2/5

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

No annotations are present, so the description carries the full behavioral burden, yet it only says it is an HTTP GET returning JSON. It says nothing about pagination (pageToken/nextPageToken), incremental sync semantics via syncToken, that recurring events are collapsed unless singleEvents is set, or any quoting/scope/auth behavior. The boilerplate about request bodies built from typed parameters or body_file is largely irrelevant for a GET and adds noise rather than behavioral insight.

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 purpose is front-loaded correctly, but the middle sentences about request bodies, body_file, and typed-vs-params precedence are template boilerplate that doesn't apply usefully to a GET list call. The trailing sibling enumeration is a long name dump rather than actionable routing information.

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

Completeness2/5

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

This is a 23-parameter list tool with complex filtering, pagination, and sync semantics, and an output schema so return-shape explanation is not needed — but the description gives no guidance on the non-obvious interactions (timeMin/timeMax exclusivity, singleEvents with orderBy=startTime, syncToken requiring the last page). For a tool of this complexity, an agent would need to reverse-engineer behavior from the schema alone.

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 87%, so the schema already documents nearly all 23 parameters in detail. The description adds no parameter meaning of its own beyond the generic note that typed flags win over the params map, which matches the schema's own wording — baseline 3 is appropriate.

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

Purpose4/5

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

The opening sentence gives a specific verb and resource ('Returns events on the specified calendar') and the [HTTP GET] tag confirms the operation type, so an agent can tell this is a read of calendar events. It stops short of distinguishing it from the very similar calendar.events.get and calendar.events.instances beyond listing their names.

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

Usage Guidelines2/5

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

The description ends with a bare list of sibling names (delete, get, import, insert, instances, move, patch, quickAdd, update, watch) but never states when to choose this tool over them — e.g. that get returns a single event while list enumerates a calendar. There are no usage conditions, prerequisites, or exclusions anywhere in the text.

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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