Marriott International Loyalty API

The Loyalty API from Marriott International — 1 operation(s) for loyalty.

Operations 1

POST /loyalty/v1/account-merge Merge or transfer member profiles

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/marriott-loyalty-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

marriott-loyalty-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Merge/Transfer Request API - new TIP MMF Spec for sending Account Merge request to SF CLM Loyalty API
  version: 1.0.2
servers:
- url: https://virtserver.swaggerhub.com/marriott-api/lylt-v1-merge-profile/1.0.1
  description: SwaggerHub API Auto Mocking
tags:
- name: Loyalty
paths:
  /loyalty/v1/account-merge:
    post:
      summary: Merge or transfer member profiles
      parameters:
      - name: client_id
        in: header
        description: Client identifier
        required: true
        schema:
          type: string
      - name: operator_id
        in: header
        description: Operator identifier
        required: true
        schema:
          type: string
      - name: correlation-id
        in: header
        description: Correlation identifier for request tracing
        required: false
        schema:
          type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MergeRequest'
            examples:
              mergeProfileExample:
                summary: Merge two member profiles
                value:
                  accountMerge:
                    sourceAccount:
                      memberAccountUniqueIdentifier:
                        memberAccountTypeCode: CSID
                        memberAccountUniqueIdValue: '779853771'
                        accountStatusType:
                          accountStatusTypeCode: '23'
                          newAccountStatusTypeDescription: Merge
                    destinationAccount:
                      memberAccountUniqueIdentifier:
                        memberAccountTypeCode: CSID
                        memberAccountUniqueIdValue: '225098331'
                    mergeReason: User Comment
        required: true
      responses:
        '200':
          description: Profile merged successfully
        '400':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error:
                - code: '400'
                  message: Bad Request
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error:
                - code: '500'
                  message: Internal Error
      tags:
      - Loyalty
components:
  schemas:
    SourceMergeAccount:
      required:
      - memberAccountUniqueIdentifier
      type: object
      properties:
        memberAccountUniqueIdentifier:
          $ref: '#/components/schemas/SourceMemberAccountUniqueIdentifier'
    DestinationMemberAccountUniqueIdentifier:
      required:
      - memberAccountTypeCode
      - memberAccountUniqueIdValue
      type: object
      properties:
        memberAccountTypeCode:
          type: string
          description: Code identifying the type of member account unique identifier
          example: CSID
          enum:
          - ACID
          - CSID
        memberAccountUniqueIdValue:
          maxLength: 36
          minLength: 1
          pattern: (\S)*
          type: string
          description: The unique identifier value corresponding to the type code
          example: '225098331'
    AccountStatusType:
      type: object
      properties:
        accountStatusTypeCode:
          type: string
          example: '23'
        newAccountStatusTypeDescription:
          type: string
          example: Merge
    MergeRequest:
      required:
      - accountMerge
      type: object
      properties:
        accountMerge:
          $ref: '#/components/schemas/AccountMerge'
    SourceMemberAccountUniqueIdentifier:
      required:
      - memberAccountTypeCode
      - memberAccountUniqueIdValue
      type: object
      properties:
        memberAccountTypeCode:
          type: string
          description: Code identifying the type of member account unique identifier
          example: CSID
          enum:
          - ACID
          - CSID
        memberAccountUniqueIdValue:
          maxLength: 36
          minLength: 1
          pattern: (\S)*
          type: string
          description: The unique identifier value corresponding to the type code
          example: '779853771'
        accountStatusType:
          $ref: '#/components/schemas/AccountStatusType'
    AccountMerge:
      required:
      - destinationAccount
      - sourceAccount
      type: object
      properties:
        sourceAccount:
          $ref: '#/components/schemas/SourceMergeAccount'
        destinationAccount:
          $ref: '#/components/schemas/DestinationMergeAccount'
        mergeReason:
          type: string
          example: User Comment
    ErrorResponse:
      type: object
      properties:
        error:
          type: array
          items:
            $ref: '#/components/schemas/ErrorDetails'
    DestinationMergeAccount:
      required:
      - memberAccountUniqueIdentifier
      type: object
      properties:
        memberAccountUniqueIdentifier:
          $ref: '#/components/schemas/DestinationMemberAccountUniqueIdentifier'
    ErrorDetails:
      type: object
      properties:
        code:
          type: string
          example: Error Code
        message:
          type: string
          example: Error Message