> ## Documentation Index > Fetch the complete documentation index at: https://cal.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create an event type sequence > Lets a booker book the team's event types back to back, as one loop. Every segment's event type must belong to the team and be bookable together: a 422 names each segment that isn't and why, and a slug already used by one of the team's sequences or event types is a 409. PBAC permission: `eventType.create`. If accessed using an OAuth access token, the `TEAM_EVENT_TYPE_WRITE` scope is required. ## OpenAPI ````yaml /api-reference/v2/openapi.json post /v2/organizations/{orgId}/teams/{teamId}/event-type-sequences openapi: 3.0.0 info: title: Cal.com API v2 description: '' version: 1.0.0 contact: {} servers: [] security: [] tags: [] paths: /v2/organizations/{orgId}/teams/{teamId}/event-type-sequences: post: tags: - Orgs / Teams / Event Type Sequences summary: Create an event type sequence description: >- Lets a booker book the team's event types back to back, as one loop. Every segment's event type must belong to the team and be bookable together: a 422 names each segment that isn't and why, and a slug already used by one of the team's sequences or event types is a 409. PBAC permission: `eventType.create`. If accessed using an OAuth access token, the `TEAM_EVENT_TYPE_WRITE` scope is required. operationId: OrganizationsTeamsEventTypeSequencesController_create parameters: - name: Authorization in: header description: >- value must be `Bearer ` where `` is api key prefixed with cal_, managed user access token, or OAuth access token required: false schema: type: string - name: x-cal-secret-key in: header description: For platform customers - OAuth client secret key required: false schema: type: string - name: x-cal-client-id in: header description: For platform customers - OAuth client ID required: false schema: type: string - name: teamId required: true in: path description: >- The team's uuid (preferred), its short-uuid (Flickr Base58) form, or its numeric id. schema: anyOf: - type: string - type: number - name: orgId required: true in: path schema: type: number requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/CreateEventTypeSequenceInput' responses: '201': description: '' content: application/json: schema: $ref: '#/components/schemas/EventTypeSequenceResponseOutput' components: schemas: CreateEventTypeSequenceInput: type: object properties: title: type: string example: Engineering interview loop maxLength: 255 slug: type: string example: engineering-loop maxLength: 255 description: >- Slugified like an event type slug. Must not be the slug of another sequence or event type of the team. description: type: string example: Three back-to-back interviews. maxLength: 3000 segments: minItems: 2 maxItems: 5 description: >- The event types in booking order; they run back to back, at most 8 hours in total. The same round-robin event type can be used for two segments, but a person can be a fixed host of only one segment. type: array items: $ref: '#/components/schemas/EventTypeSequenceSegmentInput' required: - title - slug - segments EventTypeSequenceResponseOutput: type: object properties: status: enum: - success type: string data: $ref: '#/components/schemas/EventTypeSequenceOutput' required: - status - data EventTypeSequenceSegmentInput: type: object properties: eventTypeId: type: number minimum: 1 example: 101 description: >- A collective or round-robin event type of the team. It can't be seated, recurring, paid or a managed event type. required: - eventTypeId EventTypeSequenceOutput: type: object properties: uid: type: string format: uuid teamId: type: number title: type: string example: Engineering interview loop slug: type: string example: engineering-loop description: type: string nullable: true status: type: string enum: - valid - invalid description: >- Checked against the segments' event types on every read. An invalid sequence can't be booked, and its public page is not found. totalLengthMinutes: type: number example: 135 segments: type: array items: $ref: '#/components/schemas/EventTypeSequenceSegmentOutput' bookingFields: type: array items: discriminator: propertyName: field oneOf: - title: Default Name discriminator: propertyName: variant oneOf: - $ref: '#/components/schemas/SystemFullNameFieldOutput_2026_06_12' title: Default Full Name - $ref: '#/components/schemas/SystemSplitNameFieldOutput_2026_06_12' title: Default Split Name - $ref: '#/components/schemas/SystemEmailFieldOutput_2026_06_12' title: Default Email - $ref: '#/components/schemas/SystemLocationFieldOutput_2026_06_12' title: Default Location - $ref: '#/components/schemas/SystemTitleFieldOutput_2026_06_12' title: Default Title - $ref: '#/components/schemas/SystemNotesFieldOutput_2026_06_12' title: Default Notes - $ref: '#/components/schemas/SystemGuestsFieldOutput_2026_06_12' title: Default Guests - $ref: >- #/components/schemas/SystemRescheduleReasonFieldOutput_2026_06_12 title: Default Reschedule Reason - $ref: '#/components/schemas/SystemAttendeePhoneFieldOutput_2026_06_12' title: Default Attendee Phone - $ref: '#/components/schemas/SystemSmsReminderFieldOutput_2026_06_12' title: Workflow-added SMS Reminder - $ref: '#/components/schemas/SystemAiAgentPhoneFieldOutput_2026_06_12' title: Workflow-added AI Agent Phone - title: Custom Booking Field discriminator: propertyName: type oneOf: - $ref: '#/components/schemas/CustomEmailFieldOutput_2026_06_12' title: Custom Email - $ref: '#/components/schemas/CustomPhoneFieldOutput_2026_06_12' title: Custom Phone - $ref: '#/components/schemas/CustomAddressFieldOutput_2026_06_12' title: Custom Address - $ref: '#/components/schemas/CustomShortTextFieldOutput_2026_06_12' title: Custom Short Text - $ref: '#/components/schemas/CustomNumberFieldOutput_2026_06_12' title: Custom Number - $ref: '#/components/schemas/CustomLongTextFieldOutput_2026_06_12' title: Custom Long Text - $ref: '#/components/schemas/CustomSelectFieldOutput_2026_06_12' title: Custom Select - $ref: >- #/components/schemas/CustomMultiSelectFieldOutput_2026_06_12 title: Custom Multi-Select - $ref: >- #/components/schemas/CustomMultiEmailFieldOutput_2026_06_12 title: Custom Multiple Emails - $ref: >- #/components/schemas/CustomCheckboxGroupFieldOutput_2026_06_12 title: Custom Checkbox Group - $ref: >- #/components/schemas/CustomRadioGroupFieldOutput_2026_06_12 title: Custom Radio Group - $ref: '#/components/schemas/CustomCheckboxFieldOutput_2026_06_12' title: Custom Checkbox - $ref: '#/components/schemas/CustomUrlFieldOutput_2026_06_12' title: Custom URL - $ref: '#/components/schemas/UnknownBookingFieldOutput_2026_06_12' title: Unknown Booking Field description: Each segment's booking fields merged by slug, without the location. createdAt: format: date-time type: string updatedAt: format: date-time type: string required: - uid - teamId - title - slug - description - status - totalLengthMinutes - segments - bookingFields - createdAt - updatedAt EventTypeSequenceSegmentOutput: type: object properties: position: type: number example: 0 description: 0-based place in booking order. eventTypeId: type: number example: 101 title: type: string nullable: true example: Technical interview description: Null when the event type was deleted. lengthMinutes: type: number nullable: true example: 45 schedulingType: nullable: true enum: - collective - roundRobin - managed type: string fixedHosts: description: >- Every host of a collective segment, or the fixed hosts of a round-robin segment. type: array items: $ref: '#/components/schemas/EventTypeSequenceHostOutput' invalidReason: nullable: true enum: - not_found - managed_parent - unsupported_scheduling_type - seated - recurring - paid - multiple_host_groups - no_hosts - fixed_host_in_several_segments - question_conflict - block_too_long type: string description: >- Why this segment can't be booked as part of the sequence right now, from its event type as it is now; null when it can. required: - position - eventTypeId - title - lengthMinutes - schedulingType - fixedHosts - invalidReason SystemFullNameFieldOutput_2026_06_12: type: object properties: field: type: string example: name description: Identifies this as the name default booking field. slug: type: string example: name description: The default name field always uses `name` as its slug. variant: type: string example: fullName enum: - fullName description: Single full-name input variant. label: type: string placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. required: - field - slug - variant - disableOnPrefill SystemSplitNameFieldOutput_2026_06_12: type: object properties: field: type: string example: name description: Identifies this as the name default booking field. slug: type: string example: name description: The default name field always uses `name` as its slug. variant: type: string example: splitName enum: - splitName description: >- The booking page displays separate fields for the attendee's first and last names. firstNameLabel: type: string firstNamePlaceholder: type: string lastNameLabel: type: string lastNamePlaceholder: type: string lastNameRequired: type: boolean description: Whether the last name sub-field is required. disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. required: - field - slug - variant - lastNameRequired - disableOnPrefill SystemEmailFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: email description: Identifies this as the email default booking field. slug: type: string example: email description: The default email field always uses `email` as its slug. excludeEmails: description: >- Bookers whose email matches an entry cannot book. Entries may be a bare domain (`example.com`), a domain with `@` (`@example.com`), or an exact address (`person@example.com`). Matching is case-insensitive. type: array items: type: string requireEmails: description: >- Only bookers whose email matches an entry can book. Entries may be a bare domain (`example.com`), a domain with `@` (`@example.com`), or an exact address (`person@example.com`). Matching is case-insensitive. type: array items: type: string required: - required - hidden - disableOnPrefill - field - slug SystemLocationFieldOutput_2026_06_12: type: object properties: field: type: string example: location description: >- Identifies this as the location default booking field. The Booker renders the location picker only when the event type has at least 2 location options. slug: type: string example: location description: The default location field always uses `location` as its slug. label: type: string example: Your location default field label required: - field - slug SystemTitleFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: title description: Identifies this as the title default booking field. slug: type: string example: title description: The default booking title field always uses `title` as its slug. required: - required - hidden - disableOnPrefill - field - slug SystemNotesFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: notes description: Identifies this as the notes default booking field. slug: type: string example: notes description: The default additional-notes field always uses `notes` as its slug. required: - required - hidden - disableOnPrefill - field - slug SystemGuestsFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: guests description: Identifies this as the guests default booking field. slug: type: string example: guests description: >- The default additional-guests field always uses `guests` as its slug. required: - required - hidden - disableOnPrefill - field - slug SystemRescheduleReasonFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: rescheduleReason description: Identifies this as the reschedule reason default booking field. slug: type: string example: rescheduleReason description: >- The default reschedule-reason field always uses `rescheduleReason` as its slug. required: - required - hidden - disableOnPrefill - field - slug SystemAttendeePhoneFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: attendeePhoneNumber description: Identifies this as the attendee phone number default booking field. slug: type: string example: attendeePhoneNumber description: >- The default attendee phone field always uses `attendeePhoneNumber` as its slug. required: - required - hidden - disableOnPrefill - field - slug SystemSmsReminderFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: smsReminderNumber description: Phone-number field added automatically by an SMS workflow. slug: type: string example: smsReminderNumber description: >- This workflow-added field always uses `smsReminderNumber` as its slug. required: - required - hidden - disableOnPrefill - field - slug SystemAiAgentPhoneFieldOutput_2026_06_12: type: object properties: required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. label: type: string example: Your default field label placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. field: type: string example: aiAgentCallPhoneNumber description: Phone-number field added automatically by an AI-agent workflow. slug: type: string example: aiAgentCallPhoneNumber description: >- This workflow-added field always uses `aiAgentCallPhoneNumber` as its slug. required: - required - hidden - disableOnPrefill - field - slug CustomEmailFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: email enum: - email description: An email input on the booking page. excludeEmails: description: >- Bookers whose email matches an entry cannot book. Entries may be a bare domain (`example.com`), a domain with `@` (`@example.com`), or an exact address (`person@example.com`). Matching is case-insensitive. type: array items: type: string requireEmails: description: >- Only bookers whose email matches an entry can book. Entries may be a bare domain (`example.com`), a domain with `@` (`@example.com`), or an exact address (`person@example.com`). Matching is case-insensitive. type: array items: type: string required: - field - slug - label - required - hidden - disableOnPrefill - type CustomPhoneFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: phone enum: - phone description: A phone-number input on the booking page. required: - field - slug - label - required - hidden - disableOnPrefill - type CustomAddressFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: address enum: - address description: An address input on the booking page. required: - field - slug - label - required - hidden - disableOnPrefill - type CustomShortTextFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: shortText enum: - shortText description: A single-line text input on the booking page. required: - field - slug - label - required - hidden - disableOnPrefill - type CustomNumberFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: number enum: - number description: A number input on the booking page. required: - field - slug - label - required - hidden - disableOnPrefill - type CustomLongTextFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: longText enum: - longText description: A multi-line text input on the booking page. minLength: type: number description: Minimum character length for the long text field. maxLength: type: number description: Maximum character length for the long text field. required: - field - slug - label - required - hidden - disableOnPrefill - type CustomSelectFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. options: example: - Option 1 - Option 2 type: array items: type: string type: type: string example: select enum: - select description: A dropdown that allows one selection. required: - field - slug - label - required - hidden - disableOnPrefill - options - type CustomMultiSelectFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. options: example: - Option 1 - Option 2 type: array items: type: string type: type: string example: multiSelect enum: - multiSelect description: A list that allows multiple selections. required: - field - slug - label - required - hidden - disableOnPrefill - options - type CustomMultiEmailFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: multiEmail enum: - multiEmail description: An input that accepts multiple email addresses. required: - field - slug - label - required - hidden - disableOnPrefill - type CustomCheckboxGroupFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. options: example: - Option 1 - Option 2 type: array items: type: string type: type: string example: checkboxGroup enum: - checkboxGroup description: A group of checkboxes that allows multiple selections. required: - field - slug - label - required - hidden - disableOnPrefill - options - type CustomRadioGroupFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. options: example: - Option 1 - Option 2 type: array items: type: string type: type: string example: radioGroup enum: - radioGroup description: A group of radio buttons that allows one selection. required: - field - slug - label - required - hidden - disableOnPrefill - options - type CustomCheckboxFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: checkbox enum: - checkbox description: A single checkbox on the booking page. required: - field - slug - label - required - hidden - disableOnPrefill - type CustomUrlFieldOutput_2026_06_12: type: object properties: field: type: string example: custom description: Identifies this as a custom booking field. slug: type: string description: Unique slug identifier for this custom field. example: some-slug label: type: string example: Your custom field label required: type: boolean hidden: type: boolean description: >- Hide this booking field from the booking page while keeping it in the event type's settings. Hidden fields are only returned to callers authorized on the event type. placeholder: type: string disableOnPrefill: type: boolean description: >- Disable this booking field if the URL contains query parameter with key equal to the slug and prefill it with the provided value. For example, if the slug is `my-field` and the URL contains `&my-field=value`, the field will be prefilled with this value and disabled. type: type: string example: url enum: - url description: A URL input on the booking page. required: - field - slug - label - required - hidden - disableOnPrefill - type UnknownBookingFieldOutput_2026_06_12: type: object properties: field: type: string example: unknown enum: - unknown slug: type: string example: unknown enum: - unknown bookingField: type: string description: Raw booking-field data that this API version does not recognize. required: - field - slug - bookingField EventTypeSequenceHostOutput: type: object properties: name: type: string nullable: true example: Dana Smith avatarUrl: type: string nullable: true required: - name - avatarUrl ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.