# Marriott Loyalty Account Merge API

**Canonical:** https://apis.io/apis/marriott/marriott-loyalty-account-merge-api/  
**Provider:** Marriott International — https://apis.io/providers/marriott/  
**Base URL:** https://virtserver.swaggerhub.com/marriott-api/lylt-v1-merge-profile/1.0.1  
**Documentation:** https://api.swaggerhub.com/apis/marriott-api/account-merge/1.0.2

Marriott Loyalty Account Merge API is one of 6 APIs that [Marriott International](https://apis.io/providers/marriott/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Loyalty and Member Profile. The published artifact set on APIs.io includes an OpenAPI specification and an API reference.

Internal Marriott Bonvoy loyalty operation that merges or transfers one member profile into another, keyed on a member account type code and member account unique identifier. Documented only as an OpenAPI document publicly readable on SwaggerHub under the "marriott-api" owner; the only server listed is a SwaggerHub auto-mock, so no callable Marriott host is published.

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/marriott/refs/heads/main/openapi/marriott-loyalty-account-merge-api-openapi.json
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/marriott/refs/heads/main/overlays/marriott-loyalty-account-merge-overlay.yaml
- **APIReference** — https://api.swaggerhub.com/apis/marriott-api/account-merge/1.0.2

## Other Marriott International APIs (5)

- [Marriott TIP Internet Portal API](https://apis.io/apis/marriott/marriott-tip-internet-portal-api/)
- [Marriott Data Collection API](https://apis.io/apis/marriott/marriott-data-collection-api/)
- [Marriott Commerce Payment Processor API](https://apis.io/apis/marriott/marriott-commerce-payment-processor-api/)
- [Marriott Finance Status Notifier API](https://apis.io/apis/marriott/marriott-finance-status-notifier-api/)
- [Marriott Hotel Operations ARA Preview Submit API](https://apis.io/apis/marriott/marriott-hotel-operations-ara-api/)

## Tags

Loyalty, Member Profile

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/marriott/marriott-loyalty-account-merge-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/marriott/.