Cvent Registration OAuth API

openapi: 3.0.2
info:
  title: Cvent Registration OAuth API
  version: ea
  description: 'Registration-surface slice of the official Cvent REST APIs OpenAPI, filtered to the ''Authentication'' tag(s).

    Derived verbatim (operations, schemas, parameters and responses copied unchanged) from Cvent''s own published contract
    at https://github.com/cvent/rest-sdks/blob/main/cvent-public-spec/openapi.yaml — the spec Cvent generates its official
    TypeScript, Java and C# SDKs from.

    Full platform description, authentication, pagination, filtering, rate-limit and versioning narrative lives in openapi/_original/cvent-rest-apis-openapi.yaml.'
  contact:
    name: Cvent Development Platform
    url: https://developers.cvent.com/
servers:
- url: https://api-platform.cvent.com/ea
- url: https://api-platform-eur.cvent.com/ea
tags:
- name: Authentication
  description: Endpoints for obtaining, refreshing, and validating OAuth2 access tokens.
paths:
  /oauth2/authorize:
    get:
      tags:
      - Authentication
      summary: Get Authorization Code
      description: 'Initiates the OAuth2 authorization code flow by directing the user-agent to the Cvent authorization server.
        The client typically triggers this request via a browser. For the `redirect_uri` HTTPS is required; `http://localhost`
        is permitted for local testing only. On success, the authorization server redirects the user-agent back to the client''s
        `redirect_uri` with an authorization code. The client can then exchange that code via [Get Token](#operation/oauth2Token)
        to obtain an access token.

        '
      operationId: oauth2Authorize
      parameters:
      - in: query
        name: response_type
        description: 'The response type must be code. Indicates the client wants an authorization code (authorization code
          grant flow).


          **Note:** *implicit flow* or the *token* value is not supported at this time.

          '
        schema:
          type: string
          enum:
          - code
        example: code
        required: true
      - in: query
        name: client_id
        description: 'The OAuth2 Client application ID.


          Must be a pre-registered client created in the developer portal.

          '
        schema:
          type: string
        example: ad398u21ijw3s9w3939
        required: true
      - in: query
        name: redirect_uri
        description: 'The URL to which the authorization server redirects the browser after authorization has been granted
          by the user.


          A redirect URI must:


          * Be an absolute URI.

          * Be pre-registered with a client.

          * **NOT** include a fragment component.

          * Wildcards are **NOT** supported


          Requires HTTPS over HTTP except for http://localhost for testing purposes only.


          **Note:** App callback URLs such as *com.myclientapp://myclient/redirect* are also supported.

          '
        schema:
          type: string
        example: https://example.com/redirect
        required: true
      - in: query
        name: state
        description: 'An opaque value the client application adds to the initial request. The authorization server

          includes this value when redirecting back to the client.


          This value must be used by the client to prevent CSRF attacks.


          **Optional** but strongly recommended.

          '
        schema:
          type: string
        example: abc123xyz
        required: false
      - in: query
        name: scope
        description: 'Can be a combination of any scopes associated with a client. Scopes must be separated by spaces.

          Any scope used must be pre-associated with the client or it will be ignored at runtime.


          **Note:** If the client doesn''t request any scopes, the authorization server uses all

          scopes associated with the client.

          '
        schema:
          type: string
        example: event/events:read event/attendees:read
        required: false
      responses:
        '302':
          description: Redirect back to calling application.
          headers:
            Location:
              schema:
                type: string
              description: "**Positive Response**\n\nThe authorization server redirects the user-agent back to the client's\
                \ redirect URI with the authorization code and state.\nThe code and state must be returned in the query string\
                \ parameters.\n\n**Negative Responses**\n\n- If client_id and redirect_uri are valid but there are other problems\
                \ with the request parameters\n(for example, if response_type is not included), the authorization server redirects\
                \ the error to\nclient's redirect_uri.\n  - Location: https://client_redirect_uri?error=invalid_request\n\n\
                - If the client requests 'code' in response_type but does not have permission for these requests,\nthe authorization\
                \ server should return unauthorized_client to client's redirect_uri.\n  - Location: https://client_redirect_uri?error=unauthorized_client\n\
                \n- If the client requests invalid, unknown, malformed scope, the authorization server should return\ninvalid_scope\
                \ to the client's redirect_uri, as follows.\n  - Location: https://client_redirect_uri?error=invalid_scope\n\
                \n- If there is any unexpected error in the server, the authorization server should return\nserver_error to\
                \ client's redirect_uri. It should not be the HTTP 500 error displayed to\nthe end user in the browser, because\
                \ this error doesn't get sent to the client.\n  - Location: https://client_redirect_uri?error=server_error\n\
                \n- In the rare case where the authorization server encounters an exception in the communication\nprotocol\
                \ while making any connection to an external identity provider, the authorization\nserver redirects the error\
                \ to the client's redirect_uri with either of the following messages.\n  - Location: https://client_redirect_uri?error=invalid_request&error_description=Connection+reset\n\
                \  - Location: https://client_redirect_uri?error=invalid_request&error_description=Read+timed+out\n"
              example: https://client_redirect_uri?code=AUTHORIZATION_CODE&state=STATE
        '400':
          description: The request is missing a required parameter.
  /oauth2/token:
    post:
      tags:
      - Authentication
      summary: Get Token
      description: 'Obtains an access token and, optionally, a refresh token. Read the [Developer Quickstart](https://developers.cvent.com/docs/rest-api/tutorials/developer-quickstart)
        for an example request.


        **Note:** The token endpoint returns refresh_token only when the grant_type is authorization_code.

        '
      operationId: oauth2Token
      parameters:
      - in: header
        name: Authorization
        description: 'The client must pass its client_id and client_secret in the authorization header through Basic HTTP
          authorization.


          An example is `Basic Base64Encode(client_id:client_secret)` where `Base64Encode` means that the client id and secret
          are base64 encoded.

          '
        schema:
          type: string
        example: Basic Y2xpZW50X2lkOmNsaWVudF9zZWNyZXQ=
        required: true
      requestBody:
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              properties:
                grant_type:
                  description: Controls the OAuth2 grant flow used to obtain tokens.
                  enum:
                  - client_credentials
                  - authorization_code
                  - refresh_token
                  example: client_credentials
                client_id:
                  description: 'The OAuth2 Client application ID.


                    Must be a pre-registered client created in the developer portal.

                    '
                  type: string
                  example: djc98u3jiedmi283eu928
                scope:
                  description: 'Can be a combination of any scopes associated with a client. Any scope requested must be pre-associated
                    with the client or it will be ignored at runtime.

                    If the client doesn''t request any scopes, the authorization server uses all scopes associated with the
                    client.


                    **Optional** - Only used if the grant_type is client_credentials.

                    '
                  type: string
                  example: event/events:read event/attendees:read
                redirect_uri:
                  description: 'Must be the same *redirect_uri* that was used to get *authorization_code* in */oauth2/authorize*.


                    **Required only if grant_type is authorization_code.**

                    '
                  type: string
                  example: https://example.com/redirect
                refresh_token:
                  description: 'The refresh token.


                    **Note:** The token endpoint returns *refresh_token* only when the grant_type is *authorization_code*.

                    '
                  type: string
                  example: dn43ud8uj32nk2je
                code:
                  description: 'The code that is returned from a successful */oauth2/authorize*.


                    **Required if grant_type is authorization_code.**

                    '
                  type: string
                  example: AUTHORIZATION_CODE
              required:
              - grant_type
              - client_id
      responses:
        '200':
          description: A successful response returning an access token and a possible refresh token.
          content:
            application/json:
              schema:
                type: object
                properties:
                  access_token:
                    type: string
                    description: The access token contains scopes and groups and is used to grant access to authorized resources.
                    example: eyJz9sdfsdfsdfsd
                  refresh_token:
                    type: string
                    description: The refresh token contains the information necessary to obtain a new access token.
                    example: dn43ud8uj32nk2je
                  token_type:
                    type: string
                    description: The OAuth2 token type. Always `Bearer`.
                    example: Bearer
                  expires_in:
                    type: integer
                    description: The lifetime in seconds of the access token.
                    default: 3600
                    example: 3600
                required:
                - access_token
                - token_type
                - expires_in
        '400':
          description: A bad token response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  error_description:
                    type: string
                    description: Additional error information, when available.
                  error:
                    type: string
                    description: '**invalid_request**


                      The request is missing a required parameter, includes an unsupported parameter value (other than unsupported_grant_type),
                      or is otherwise malformed. For example, grant_type is refresh_token but refresh_token is not included.


                      **invalid_client**


                      Client authentication failed. For example, when the client includes client_id and client_secret in the
                      authorization header, but there''s no such client with that client_id and client_secret.


                      **invalid_grant**


                      Refresh token has been revoked.


                      Authorization code has been consumed already or does not exist.


                      **unauthorized_client**


                      Client is not allowed for code grant flow or for refreshing tokens.


                      **unsupported_grant_type**


                      Returned if grant_type is anything other than authorization_code or refresh_token.

                      '
                    enum:
                    - invalid_request
                    - invalid_client
                    - invalid_grant
                    - unauthorized_client
                    - unsupported_grant_type
                    example: invalid_request
        '401':
          description: Client authentication failed. The credentials provided in the Authorization header are invalid or missing.
  /token-validation:
    get:
      tags:
      - Authentication
      summary: Validate Token
      description: Verifies presented authentication token is valid.
      operationId: validateToken
      security:
      - OAuth2.clientCredentials: []
      - OAuth2.authorizationCode: []
      parameters: []
      responses:
        '200':
          $ref: '#/components/responses/ValidToken'
        '400':
          $ref: '#/components/responses/BadRequest1'
        '401':
          $ref: '#/components/responses/Unauthorized1'
        '403':
          $ref: '#/components/responses/Forbidden1'
        '429':
          $ref: '#/components/responses/TooManyRequests1'
      deprecated: false
      externalDocs:
        description: More about OAuth2 authorization code support for administrators
        url: '#oauth2-auth-code-planner-admin'
components:
  responses:
    BadRequest1:
      description: Bad request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 400
            message: Bad Request
    Forbidden1:
      description: You do not have access to the resource
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 403
            message: Access Forbidden
    TooManyRequests1:
      description: Too many requests
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 429
            message: Limit Exceeded
    Unauthorized1:
      description: Bad or expired token
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 401
            message: Unauthorized
    ValidToken:
      description: A confirmation message that the token is valid
      headers: {}
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ValidToken'
  schemas:
    ErrorResponse:
      title: ErrorResponse
      description: Represents an error response with additional details of cascading error messages.
      allOf:
      - $ref: '#/components/schemas/ErrorResponseBase'
      type: object
      required:
      - code
      - message
      properties:
        details:
          type: array
          items:
            $ref: '#/components/schemas/ErrorResponseBase'
          description: Additional details of cascading error messages.
    ErrorResponseBase:
      title: ErrorResponseBase
      type: object
      description: Represents an error response with no additional details.
      required:
      - code
      - message
      properties:
        code:
          type: integer
          description: The HTTP status code representing the error.
          example: 400
        message:
          type: string
          description: A brief description of the error.
          example: Bad Request
        target:
          type: string
          description: The target resource of the error.
          example: example target
    ValidToken:
      title: Valid Token
      description: Validity status of an authentication token.
      type: object
      properties:
        tokenValid:
          type: boolean
          description: True indicates the presented authentication token is valid.
          example: true
        statusCode:
          type: integer
          description: Supplementary status code. Typically will be 200 for a success case.
          example: 200
  securitySchemes:
    OAuth2.authorizationCode:
      type: oauth2
      description: OAuth2 Authorization Code Flow.
      flows:
        authorizationCode:
          authorizationUrl: https://api-platform.cvent.com/ea/oauth2/authorize
          tokenUrl: https://api-platform.cvent.com/ea/oauth2/token
          scopes:
            account/hooks:delete: Allows the deletion of hooks.
            account/hooks:read: Allows the reading of hooks.
            account/hooks:write: Allows the creation/updation of hooks.
            account/user-groups:delete: Allows deletion for user groups
            account/user-groups:read: Allows the reading of user groups
            account/user-groups:write: Allows the writing of user groups
            account/users:delete: Allows the deletion of User
            account/users:read: Allows the reading of User, User Group
            account/users:write: Allows the creation/updating of User
            appointments/appointment-attendees:read: Allows the reading of appointment attendees and their related entities.
            appointments/appointment-events:read: Allows the reading of appointment events and their related entities.
            appointments/appointment-types:read: Allows the reading of appointment types and their related entities.
            appointments/appointments:read: Allows the reading of appointment and their related entities.
            appointments/appointments:write: Allows the writing of appointments and their related entities.
            appointments/available-times:read: Allows the reading of available times.
            appointments/locations:read: Allows the reading of appointment locations and their related entities.
            attendee-insights/attendee-insights:read: Allows the reading of engagement scores (attendee insights).
            attendee-insights/scores:read: Allows the reading of scores.
            attendee-insights/stats:read: Allows the reading of engagement score (attendee insight) stats.
            budget/budget-items:delete: Allows the deletion of budget items
            budget/budget-items:read: Allows the reading of all budget items
            budget/budget-items:write: Allows creation/updation of budget item
            budget/budget-totals:read: Allows the reading of all event budget totals
            budget/budget-vendors:read: Allows reading of account-level budget vendors.
            budget/cards:read: Allows the reading of cards
            budget/currency-conversion-rate:delete: Allows deletion of currency conversion rate for currency.
            budget/currency-conversion-rate:read: Allows reading of currency conversion rate for currency.
            budget/currency-conversion-rate:write: Allows creation/update of currency conversion rate for currency.
            budget/payments:delete: Allows deletion of payments.
            budget/payments:read: Allows reading of payment for budget item.
            budget/payments:write: Allows creation of payment in a budget item.
            budget/transactions:delete: Allows delete card transactions.
            budget/transactions:read: Allows the reading of all card's transactions
            budget/transactions:write: Allows creation of card transactions.
            business-transient/bids:read: Allows the reading of BT Bid data
            business-transient/proposals:read: Allows the reading of BT Proposal data
            business-travel/bids:read: Allows the reading of BT Bid data
            business-travel/proposals:read: Allows the reading of BT Proposal data
            compliance/communications:read: Allows the reading of communication compliance
            compliance/communications:write: Allows the writing of communication compliance
            email/bounces:read: Allow the reading of email bounces.
            email/email-status:read: Allows the reading of email statuses.
            email/emails:read: Allows the reading of emails.
            eMarketing/campaigns:read: Allows the reading of campaigns.
            emarketing/emarketing-email-status:read: Allows the reading of eMarketing email statuses.
            eMarketing/eMarketing-email-templates:read: Allows the reading of email-templates.
            eMarketing/eMarketing-send-emails:write: Allows the writing of eMarketing emails.
            event/admission-items:read: Allows the reading of admission items
            event/air-request:read: Allow reading the air request or air actual detail for attendees.
            event/alternate-travel:read: Allow reading the alternate travel answers for attendees.
            event/attendance-durations:read: Allows the read of Duration records
            event/attendee-activities-metadata:delete: Allows the deletion of attendees activities metadata.
            event/attendee-activities-metadata:read: Allows the reading of attendee activities metadata.
            event/attendee-activities-metadata:write: Allows the creation/updating of attendees activities metadata.
            event/attendee-activities:read: Allows the reading of attendee activities.
            event/attendee-activities:write: Allows the writing of attendee activities.
            event/attendee-credits:read: Allows the reading of attendee credits.
            event/attendee-links:delete: Allows the deletion of attendee links
            event/attendee-links:read: Allows the reading of attendee links
            event/attendee-links:write: Allows the creation of attendee links
            event/attendee-messages:read: Allows the reading of attendee messages
            event/attendees:read: Allows the reading of attendees.
            event/attendees:write: Allows the creation of an attendee in an event.
            event/audience-segments:read: Allows the reading of audience segments.
            event/audience-segments:write: Allows the creation/updating/deletion of audience segments.
            event/contact-groups:read: Allows the reading of contact groups.
            event/contact-groups:write: Allows the creation/updating of contact groups.
            event/contact-types:read: Allows the reading of contact types.
            event/contacts:delete: Allows the deletion of contacts.
            event/contacts:read: Allows the reading of contacts.
            event/contacts:write: Allows the creation/updating of contacts.
            event/contacts:write-sensitive: Allows the creation/updating of sensitive data related to contacts.
            event/custom-fields:read: Allows the reading of custom fields
            event/custom-fields:write: Allows the writing of custom fields
            event/discounts:write: Allows the writing of discounts
            event/donation-items:read: Allows the reading of donation items.
            event/event-discounts:read: Allows the reading of event discounts.
            event/event-discounts:write: Allows the writing of event discounts.
            event/event-email-status:read: Allows the reading of event email statuses.
            event/event-emails:read: Allows the reading of event emails
            event/event-emails:write: Allows to send event emails.
            event/event-features:read: Allows the reading of events-features
            event/event-features:write: Allows updating the event-features
            event/event-user-groups:read: Allows the reading of user groups
            event/event-user-groups:write: Allows associating/disassociating user groups to event
            event/events:read: Allows the reading of events
            event/events:write: Allows the creation/updating of events
            event/fee-items:read: Allows the reading of fee items.
            event/hotel-request:read: Allow reading the hotel request or housing reservation request detail for attendees.
            event/invitation-lists:read: Allows the reading of the invitation lists for an event
            event/meeting-request-forms:read: Allows the reading of meeting request forms.
            event/meeting-requests:read: Allows the reading of meeting requests.
            event/meeting-requests:write: Allows the creation/updating of meeting requests.
            event/membership-items:read: Allows reading of membership items.
            event/orders:read: Allows the reading of orders
            event/planning-documents:read: Allows the reading of event planning documents
            event/players:read: Allows the reading of players
            event/process-form-submissions:read: Allows the reading of process form submissions.
            event/program-items:delete: Allows deletion of session program items
            event/program-items:read: Allows reading of session program items
            event/program-items:write: Allows writing of session program items
            event/quantity-items:read: Allows the reading of quantity items.
            event/quantity-items:write: Allows the writing of quantity items
            event/registration-paths:read: Allows the reading of registration paths
            event/registration-types:read: Allows the reading of registration types
            event/registration-types:write: Allows the writing of registration types
            event/role-assignments:read: Allows the reading of event role assignment.
            event/session-attendance:read: Allows the reading of sessions attendance
            event/session-attendance:write: Allows the creation/updating of sessions attendance
            event/session-categories:read: Allows reading of session categories
            event/session-categories:write: Allows writing of session categories
            event/session-enrollment:delete: Allows the deletion of session registrations
            event/session-enrollment:read: Allows the reading of sessions registrations
            event/session-enrollment:write: Allows the writing of sessions registrations
            event/session-segments:read: Allows reading of session segments
            event/sessions:delete: Allows the deletion of a session in an event
            event/sessions:read: Allows the reading of sessions
            event/sessions:write: Allows the creation of a session in an event
            event/speaker-categories:read: Allows reading of speaker categories
            event/speaker-categories:write: Allows writing of speaker categories
            event/speakers:delete: Allows the deletion of a speaker in an event
            event/speakers:read: Allows the reading of speakers
            event/speakers:write: Allows the creation of a speaker in an event
            event/taxes:read: Allows the reading of taxes.
            event/transactions:read: Allows the reading of transactions
            event/transactions:write: Allows the writing of transactions
            event/video-views:read: Allows reading of video views.
            event/videos:read: Allows the reading of video data.
            event/videos:write: Allows the creation/updating of video data.
            event/vouchers:read: Allows reading of event vouchers and their associated attendees.
            event/webcasts:delete: Allows the deletion of webcast
            event/webcasts:read: Allows the reading of webcasts
            event/webcasts:write: Allows the creation of webcast
            event/weblinks:read: Allows the reading of event weblinks
            events-plus/hubs:read: Allows the reading of Events+ hub data.
            exhibitor/badges:read: Allows reading badges
            exhibitor/badges:write: Allows creating/updating badges
            exhibitor/booth-staff:delete: Allows deleting booth staff
            exhibitor/booth-staff:read: Allows reading booth staff
            exhibitor/booth-staff:write: Allows creating booth staff
            exhibitor/eliterature-requests:read: Allows reading eliterature document request data
            exhibitor/exhibitor-admins:read: Allows reading exhibitor admins
            exhibitor/exhibitor-admins:write: Allows creating/updating exhibitor admins
            exhibitor/exhibitor-answers:read: Allows reading exhibitor answers
            exhibitor/exhibitor-answers:write: Allows updating exhibitor answers
            exhibitor/exhibitor-categories:delete: Allows deleting exhibitor categories
            exhibitor/exhibitor-categories:read: Allows reading exhibitor categories
            exhibitor/exhibitor-categories:write: Allows creating/updating exhibitor categories
            exhibitor/exhibitor-contents:delete: Allows deleting exhibitor content
            exhibitor/exhibitor-contents:read: Allows reading exhibitor content
            exhibitor/exhibitor-contents:write: Allows creating/updating exhibitor content
            exhibitor/exhibitor-questions:read: Allows reading exhibitor questions
            exhibitor/exhibitors:delete: Allows deleting exhibitors
            exhibitor/exhibitors:read: Allows reading exhibitors
            exhibitor/exhibitors:write: Allows creating/updating exhibitors
            exhibitor/lead-qualification-answers:read: Allows reading Lead Qualification Answers
            exhibitor/lead-qualification-questions:read: Allows reading Lead Qualification Questions.
            exhibitor/leads:read: Allows reading leads.
            exhibitor/registration-packs:delete: Allows deleting registration pack
            exhibitor/registration-packs:read: Allows reading registration pack
            exhibitor/registration-packs:write: Allows creating/updating registration pack
            exhibitor/sponsorship-levels:read: Allows reading sponsorship level
            file/file:read: Allows the reading of file
            file/file:write: Allows the uploading of file
            onsite/signatures:read: Allows reading signatures.
            remote-printing/badge-print-jobs:read: Allows reading print jobs.
            remote-printing/badge-print-jobs:write: Allows creating print jobs.
            remote-printing/badge-printer-pools:read: Allows reading pools.
            rfp/rfp-agenda-items:read: Allows the reading of RFP agenda items.
            rfp/rfp-attachments:read: Allows the reading of RFP attachments.
            rfp/rfp-custom-fields:read: Allows the reading of RFP custom fields.
            rfp/rfp-guest-rooms:read: Allows the reading of RFP guest rooms.
            rfp/rfp-internal-documents:read: Allows the reading of RFP internal documents.
            rfp/rfp-lead-sources:read: Allows the reading of RFP lead sources.
            rfp/rfp-past-events:read: Allows the reading of past events similar to rfp event.
            rfp/rfp-questions:read: Allows the reading of RFP questions.
            rfp/rfp-recipients-history:read: Allows the reading of RFP recipients history.
            rfp/rfp-suppliers:read: Allows the reading of RFP suppliers.
            rfp/rfps:read: Allows the reading of basic details of RFP.
            seating/assignments:read: Allows to read attendee seat assignment information.
            seating/event-seatings:read: Allows to read event seating.
            seating/seats:read: Allows to read seat information.
            seating/tables:read: Allows to read table information.
            survey/questions:read: Allows the reading of survey questions
            survey/respondents:read: Allows reading the survey respondents
            survey/responses:read: Allows reading the survey responses
            survey/standard-survey-email-templates:read: Allows reading the standalone survey email templates
            survey/standard-survey-email:write: Allows writing operations on standalone survey emails
            survey/standard-survey-questions:read: Allows the reading of standalone surveys questions
            survey/standard-survey-respondents:read: Allows reading the standalone survey respondents
            survey/standard-survey-respondents:write: Allows write operations on standalone survey respondents
            survey/standard-survey-responses:read: Allows reading the standalone survey responses
            survey/standard-survey-responses:write: Allows write operations on standalone surveys respon

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# Full source: https://raw.githubusercontent.com/api-evangelist/cvent-registration/refs/heads/main/openapi/cvent-registration-oauth-api-openapi.yml