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

# List members of an Assessment Group

> Returns the users currently assigned to the Assessment Group, with
their roles and membership timestamps.
Supports pagination, sorting, and an optional role filter.




## OpenAPI

````yaml /assessment-v1-openapi.yaml get /v1/assessment-groups/{assessmentGroupId}/members
openapi: 3.1.0
info:
  title: Assessment Service
  version: 1.0.0
  description: |
    APIs for managing Assessment and related operations on the Synack.
  contact:
    name: Synack Engineering
    email: engineering@synack.com
servers:
  - url: https://client.synack.com/api/assessment
    description: Commercial
  - url: https://client.synack.us/api/assessment
    description: FedRAMP (Medium)
security:
  - bearerAuth: []
tags:
  - name: Assessment Lifecycle
    description: Lifecycle state transitions for an individual assessment.
  - name: Assessment Groups
    description: Users assigned to an Assessment Group, with their roles.
paths:
  /v1/assessment-groups/{assessmentGroupId}/members:
    get:
      tags:
        - Assessment Groups
      summary: List members of an Assessment Group
      description: |
        Returns the users currently assigned to the Assessment Group, with
        their roles and membership timestamps.
        Supports pagination, sorting, and an optional role filter.
      operationId: listAssessmentGroupMembers
      parameters:
        - $ref: '#/components/parameters/AssessmentGroupId'
        - name: page
          in: query
          schema:
            type: integer
            minimum: 1
            default: 1
        - name: perPage
          in: query
          schema:
            type: integer
            minimum: 1
            maximum: 200
            default: 50
        - name: sort
          in: query
          description: Field to sort by.
          schema:
            type: string
            enum:
              - createdAt
              - role
              - userUid
            default: createdAt
        - name: sortDir
          in: query
          schema:
            type: string
            enum:
              - asc
              - desc
            default: asc
        - name: role
          in: query
          description: Filter members by role.
          schema:
            $ref: '#/components/schemas/AssessmentGroupRole'
      responses:
        '200':
          description: Member collection (may be empty).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MembersCollectionResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  parameters:
    AssessmentGroupId:
      name: assessmentGroupId
      in: path
      required: true
      description: Numeric identifier of the Assessment Group.
      schema:
        type: integer
        minimum: 1
  schemas:
    AssessmentGroupRole:
      type: string
      description: |
        Strongbolt role granted to (or held by) an Assessment Group
        member. Mirrors `CLIENT_VISIBLE_ROLES_ASSIGNABLE_TO_ORG_LISTING_GROUP`
        in synack_synack's strongbolt initializer.
      enum:
        - rbac_group_admin
        - assessment_member
        - assessment_creator
        - assessment_read_only
        - assessment_operator
        - infra_admin
    MembersCollectionResponse:
      type: object
      required:
        - members
        - metadata
      properties:
        members:
          type: array
          items:
            $ref: '#/components/schemas/Member'
        metadata:
          $ref: '#/components/schemas/CollectionMetadata'
    Member:
      type: object
      required:
        - userUid
        - role
        - id
        - createdAt
      properties:
        userUid:
          type: string
        userEmail:
          type: string
          format: email
          nullable: true
          description: Member's email address. Omitted when unavailable.
        userName:
          type: string
          nullable: true
          description: Member's display name (first + last). Omitted when unavailable.
        role:
          $ref: '#/components/schemas/AssessmentGroupRole'
        id:
          type: integer
          description: Identifier of the underlying membership row.
        createdAt:
          type: string
          format: date-time
          description: When the user became a member of this group (RFC 3339).
    CollectionMetadata:
      type: object
      required:
        - pagination
      properties:
        pagination:
          $ref: '#/components/schemas/Pagination'
        actions:
          type: array
          items:
            type: object
    Problem:
      type: object
      description: RFC 7807 Problem Details.
      required:
        - status
        - title
      properties:
        type:
          type: string
          format: uri
          example: https://errors.synack.com/assessment/group-not-found
        status:
          type: integer
        title:
          type: string
        detail:
          type: string
        instance:
          type: string
          format: uri
        logId:
          type: string
          description: Unique log message identifier for support.
    Pagination:
      type: object
      required:
        - total
        - page
        - perPage
        - totalPages
        - self
      properties:
        total:
          type: integer
          minimum: 0
        page:
          type: integer
          minimum: 1
        perPage:
          type: integer
          minimum: 1
        totalPages:
          type: integer
          minimum: 0
        prev:
          type: string
        next:
          type: string
        first:
          type: string
        last:
          type: string
        self:
          type: string
  responses:
    BadRequest:
      description: Malformed request body.
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
    Unauthorized:
      description: Missing or invalid authentication credentials.
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
    Forbidden:
      description: Authenticated but lacks permission for this resource.
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
    NotFound:
      description: Resource not found in the acting organization.
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
    InternalServerError:
      description: Server error.
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/Problem'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT

````