Cast AI

Cast AI Marketing API

Provides webhook endpoints for marketing campaign integrations.

GitHub OpenAPI

Operations 1

POST /ai-optimizer/v1beta/marketing-webhooks/hubspot Handle HubSpot webhook events #

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/kimchi/refs/heads/main/openapi/kimchi-marketingapi-api-openapi.yml

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OpenAPI Specification

kimchi-marketingapi-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: AI Enabler Marketing API
  version: 0.0.1
  description: Provides webhook endpoints for marketing campaign integrations.
servers:
- url: https://api.cast.ai/
  description: US endpoint
- url: https://api.eu.cast.ai/
  description: EU endpoint
security:
- BearerAuth: []
- ApiKeyAuth: []
tags:
- name: MarketingAPI
  description: Provides webhook endpoints for marketing campaign integrations.
paths:
  /ai-optimizer/v1beta/marketing-webhooks/hubspot:
    post:
      tags:
      - MarketingAPI
      summary: Handle HubSpot webhook events
      description: Endpoint for HubSpot marketing campaign webhooks. Requires valid HubSpot V3 HMAC signature.
      operationId: MarketingAPI_HandleHubSpotWebhook
      requestBody:
        content:
          application/json:
            schema:
              type: string
        required: true
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HandleHubSpotWebhookResponse'
        default:
          description: Default error response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Status'
components:
  schemas:
    Status:
      type: object
      properties:
        code:
          type: integer
          description: The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code].
          format: int32
        message:
          type: string
          description: A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client.
        details:
          type: array
          items:
            $ref: '#/components/schemas/GoogleProtobufAny'
          description: A list of messages that carry the error details.  There is a common set of message types for APIs to use.
      description: 'The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors).'
    HandleHubSpotWebhookResponse:
      type: object
      properties:
        status:
          type: string
          description: 'Processing status: "granted" or "already_granted".'
        grantId:
          type: string
          description: The credit grant ID (empty for already_granted).
      description: Response message for HubSpot webhook processing.
    GoogleProtobufAny:
      type: object
      properties:
        '@type':
          type: string
          description: The type of the serialized message.
      additionalProperties: true
      description: Contains an arbitrary serialized message along with a @type that describes the type of the serialized message.
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
x-provenance:
  method: searched
  source: https://docs.cast.ai/reference
  harvested: '2026-10-20'
  tool: harvest-readme-openapi.py
  note: Assembled verbatim from the OpenAPI definition ReadMe embeds in each operation page of the provider's developer portal; paths and components merged by API title, nothing authored.
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