Mapp Marketing Cloud CMS API

The CMS API from Mapp Marketing Cloud — 2 operation(s) for cms.

Documentation GitHub OpenAPI

Operations 2

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

GET /cms/getMimeMessage Download a CMS message in MIME format · Get a CMS message as MIME #

Ask an LLM

“Can I get the raw MIME version of a CMS message?”

“How do I export a CMS message as a MIME email?”

Tell an agent

Get CMS message {cmsMessageId} as MIME.

Export the MIME source of CMS message {cmsMessageId}.

GET /cms/getMessageDefinitions List CMS message definitions · List CMS message definitions #

Ask an LLM

“Which CMS messages are saved in the system?”

“What template was each CMS message created from?”

Tell an agent

List all CMS message definitions.

Show every saved CMS message and its template.

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Mapp Engage public CMS API
  version: '1'
  description: 'Mapp Engage REST API (REST 2.0, incremental version v19). Assembled verbatim from the per-operation OpenAPI fragments Mapp publishes on each endpoint page of https://docs.mapp.com/apidocs/. The base URL is tenant-specific: take your Mapp Engage login host and append /api/rest/v19.'
  contact:
    name: Mapp Technical Support
    url: https://mapp.com/tech-support/
servers:
- url: /api/rest/v19
security:
- basicAuth: []
tags:
- name: CMS
paths:
  /cms/getMimeMessage:
    get:
      tags:
      - CMS
      summary: Get a CMS message as MIME
      description: Returns the specified CMS message in MIME message format.
      operationId: getMimeMessage
      parameters:
      - name: cmsMessageId
        in: query
        description: The ID of the CMS message to be returned.
        required: true
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CmsMessageDefinition'
            application/xml:
              schema:
                $ref: '#/components/schemas/CmsMessageDefinition'
        '400':
          description: 'Error response: {<br>"errorActor": "CLIENT",<br>"errorCode": "NO_SUCH_OBJECT",<br>"message": "No cms message found with id ''81301''!",<br>"objectType": null,<br>"propertyName": null,<br>"propertyValue": null<br>}'
  /cms/getMessageDefinitions:
    get:
      tags:
      - CMS
      summary: List CMS message definitions
      description: 'Returns a list of all CMS messages that are saved in the system.

        Every CMS message contains detailed information that identifies the message and the template that was used for creation.'
      operationId: getMessageDefinitions
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CmsMessageDefinition'
            application/xml:
              schema:
                $ref: '#/components/schemas/CmsMessageDefinition'
        '400':
          description: ''
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: HTTP Basic authentication with a Mapp Engage system user of type API (or Hybrid).
x-apievangelist-provenance:
  method: searched
  generated: '2026-08-12'
  source: https://docs.mapp.com/apidocs/ (per-endpoint OpenAPI fragments)
  note: Union of the OpenAPI JSON fragments Mapp publishes on each endpoint page. Mapp does not serve one consolidated document at a public URL; the tenant-served Swagger lives at https://<your-engage-host>/apidoc/swagger.json and requires a tenant. Operation bodies, parameters, responses, tags, summaries and descriptions are verbatim from Mapp. The swagger/basePath/schemes/securityDefinitions envelope is added by API Evangelist from the published Getting Started guide; no operation content was authored.
  duplicate_operation_ids_suffixed: 30