> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bedrock.quarry-systems.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Create Memberships (Batch)

> Create multiple memberships in a single request

## Overview

Batch creation allows you to add multiple subjects to scopes in a single API call.

<Info>
  **ID Format**: All IDs use a namespaced UUIDv7 format: `membership_{uuidv7}`.
</Info>

## Request Body

Array of membership objects:

<ParamField body="[].id" type="string">
  Optional client-provided ID. Useful for referencing in role assignments.
</ParamField>

<ParamField body="[].subjectId" type="string" required>
  ID of the subject to add
</ParamField>

<ParamField body="[].scopeId" type="string" required>
  ID of the scope to add the subject to
</ParamField>

## Response

Returns an array of created membership objects.

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST 'https://api.example.com/memberships/batch' \
    -H 'Authorization: Bearer YOUR_TOKEN' \
    -H 'Content-Type: application/json' \
    -d '[
      {
        "id": "membership_jane_eng",
        "subjectId": "subject_jane",
        "scopeId": "scope_engineering"
      },
      {
        "id": "membership_agent_eng",
        "subjectId": "subject_agent",
        "scopeId": "scope_engineering"
      }
    ]'
  ```
</RequestExample>

<ResponseExample>
  ```json Response theme={null}
  [
    {
      "id": "membership_jane_eng",
      "subjectId": "subject_jane",
      "scopeId": "scope_engineering"
    },
    {
      "id": "membership_agent_eng",
      "subjectId": "subject_agent",
      "scopeId": "scope_engineering"
    }
  ]
  ```
</ResponseExample>