openapi: 3.1.0 info: title: Cvent Passkey RegLink REST Authentication API version: v1 description: 'Cvent Hospitality Cloud / Passkey RegLink REST API. Connects external systems to Passkey events and hotel reservation data so that registration platforms can pass attendee information to Passkey, look up event and hotel availability, and create, modify, or cancel individual reservation requests. Best-effort spec derived from the Cvent developer portal (https://developers.cvent.com/docs/passkey/REST/overview and /docs/passkey/REST/getting-started). Refer to the developer portal for the authoritative reference. ' contact: name: Cvent Developer Portal url: https://developers.cvent.com/docs/passkey/REST/overview license: name: Proprietary servers: - url: https://api-platform.cvent.com/reglink/v1 description: Cvent Passkey RegLink (US/global) - url: https://api-platform-eur.cvent.com/reglink/v1 description: Cvent Passkey RegLink (EMEA) security: - OAuth2ClientCredentials: [] tags: - name: Authentication paths: /authentication/token: post: tags: - Authentication summary: Issue a Passkey access token description: 'Exchange client credentials (API key/secret issued from the Cvent Passkey portal) for an access token that authorises subsequent RegLink requests. ' security: - BasicAuth: [] requestBody: required: true content: application/x-www-form-urlencoded: schema: type: object required: - grant_type properties: grant_type: type: string enum: - client_credentials responses: '200': description: Token issued content: application/json: schema: $ref: '#/components/schemas/AccessToken' components: schemas: AccessToken: type: object properties: access_token: type: string token_type: type: string example: Bearer expires_in: type: integer securitySchemes: OAuth2ClientCredentials: type: oauth2 flows: clientCredentials: tokenUrl: https://api-platform.cvent.com/reglink/v1/authentication/token scopes: passkey:read: Read Passkey events, hotels, room types, reservations passkey:write: Create and modify reservation requests BasicAuth: type: http scheme: basic externalDocs: description: Cvent Passkey RegLink documentation url: https://developers.cvent.com/docs/passkey/REST/overview