# POST /Indoor/api/getMccGroupAll

**Resource:** [Reference data](../resources/Reference-data.md)
**Service that lists all MCC group information**
**Operation ID:** `getMccGroupAll`

Retrieves all MCC groups from cache using _cache.GetMccGroupAll() and maps them to a list of MccGroup objects containing InstitutionCode, Kk100hOrderNumber, MccGroupCode, MccGroupDescription, QualificationIndicatorCode, UseInApplicationFlag, and ValidFlag.

## Responses

| Status | Description |
|--------|-------------|
| 200 | Success |
| 400 | (reference) |
| 404 | (reference) |
| 500 | (reference) |

**Success Response Schema:**

[GetMccGroupAllResponse](../schemas/Get/GetMccGroupAllResponse.md)

