> ## Documentation Index > Fetch the complete documentation index at: https://openworklabs.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create an Outlook calendar event as the calling member > Creates an event in the calling member's default calendar. Adding attendees can send Microsoft calendar invitations. ## OpenAPI ````yaml /openapi.json post /v1/capabilities/microsoft-365/calendar-events openapi: 3.1.0 info: title: Den API description: >- OpenAPI spec for the Den control plane API. Authentication: - Use `Authorization: Bearer ` for user-authenticated routes that require a Den session. - Use `x-api-key: ` for API-key-authenticated routes that accept organization API keys. - Public routes like health and documentation do not require authentication. Swagger tip: use the security schemes in the Authorize dialog to set either `bearerAuth` or `denApiKey` before trying protected endpoints. version: dev servers: [] security: [] tags: - name: System description: Service health and operational routes. - name: Organizations description: Top-level organization creation and context routes. - name: Invitations description: Invitation preview, acceptance, creation, and cancellation routes. - name: API Keys description: Organization API key management routes. - name: SCIM description: Organization SCIM connector management routes. - name: SSO description: Organization single sign-on connector management routes. - name: Members description: Organization member management routes. - name: Roles description: Organization custom role management routes. - name: Teams description: Organization team management routes. - name: Templates description: Organization shared template routes. - name: LLM Providers description: Organization LLM provider catalog, configuration, and access routes. - name: Skills description: Organization skill authoring and sharing routes. - name: Skill Hubs description: Organization skill hub management and access routes. - name: Workers description: Worker lifecycle, billing, and runtime routes. - name: Worker Runtime description: Worker runtime inspection and upgrade routes. - name: Worker Activity description: Worker heartbeat and activity reporting routes. - name: Telemetry description: Telemetry event ingestion and adoption analytics. - name: Admin description: Administrative reporting routes. - name: Users description: Current user and membership routes. - name: Bootstrap description: Agent-first provisional workspace setup routes. paths: /v1/capabilities/microsoft-365/calendar-events: post: tags: - Capability Sources summary: Create an Outlook calendar event as the calling member description: >- Creates an event in the calling member's default calendar. Adding attendees can send Microsoft calendar invitations. operationId: postV1CapabilitiesMicrosoft365CalendarEvents requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Microsoft365CalendarEventBody' responses: '200': description: Outlook calendar event created. content: application/json: schema: $ref: '#/components/schemas/Microsoft365CalendarEventResponse' '401': description: The caller must be signed in. content: application/json: schema: $ref: '#/components/schemas/UnauthorizedError' '409': description: >- The calling member has not connected their Microsoft account or is missing permission. content: application/json: schema: $ref: '#/components/schemas/Microsoft365NeedsConnectionError' '502': description: Microsoft Graph rejected the request. content: application/json: schema: $ref: '#/components/schemas/Microsoft365GraphError' components: schemas: Microsoft365CalendarEventBody: type: object properties: subject: type: string minLength: 1 maxLength: 255 body: type: string maxLength: 20000 start: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ end: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ timeZone: default: UTC type: string minLength: 1 maxLength: 100 location: type: string maxLength: 255 attendees: maxItems: 100 type: array items: type: string format: email pattern: >- ^(?!\.)(?!.*\.\.)([A-Za-z0-9_'+\-\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\-]*\.)+[A-Za-z]{2,}$ required: - subject - start - end Microsoft365CalendarEventResponse: type: object properties: ok: type: boolean const: true event: $ref: '#/components/schemas/Microsoft365CalendarEvent' required: - ok - event UnauthorizedError: type: object properties: error: type: string const: unauthorized required: - error Microsoft365NeedsConnectionError: type: object properties: error: type: string const: needs_connection message: type: string required: - error - message Microsoft365GraphError: type: object properties: error: type: string const: microsoft_graph_error message: type: string required: - error - message Microsoft365CalendarEvent: type: object properties: id: type: string subject: type: string preview: type: string start: type: string startTimeZone: type: string end: type: string endTimeZone: type: string isAllDay: type: boolean location: type: string organizer: anyOf: - $ref: '#/components/schemas/Microsoft365EmailAddress' - type: 'null' attendees: type: array items: $ref: '#/components/schemas/Microsoft365EmailAddress' webLink: type: string onlineMeetingUrl: anyOf: - type: string - type: 'null' required: - id - subject - preview - start - startTimeZone - end - endTimeZone - isAllDay - location - organizer - attendees - webLink - onlineMeetingUrl Microsoft365EmailAddress: type: object properties: name: type: string address: type: string required: - name - address ````