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

# Delete Security Group

> Deletes a security group. All servers must be detached first.



## OpenAPI

````yaml DELETE /security-groups/{id}
openapi: 3.0.3
info:
  title: CloudBlast API
  description: >-
    The CloudBlast V2 API provides a modern RESTful interface for managing your
    cloud infrastructure programmatically. All responses follow a consistent `{
    "data": ... }` or `{ "error": ... }` format.
  version: 2.0.0
servers:
  - url: https://console.cloudblast.io/api/v2
    description: Production
security:
  - bearerAuth: []
paths:
  /security-groups/{id}:
    delete:
      tags:
        - Security Groups
      summary: Delete a security group
      description: Deletes a security group. All servers must be detached first.
      operationId: deleteSecurityGroup
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: integer
          description: Security group ID
      responses:
        '204':
          description: Security group deleted
        '400':
          description: Servers are still attached
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              example:
                error:
                  code: HAS_SERVERS
                  message: Detach all servers before deleting the security group.
        '401':
          $ref: '#/components/responses/Unauthenticated'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              description: Machine-readable error code
            message:
              type: string
              description: Human-readable error message
          required:
            - code
            - message
  responses:
    Unauthenticated:
      description: Authentication failed
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: UNAUTHENTICATED
              message: >-
                Missing or invalid Authorization header. Use: Authorization:
                Bearer <token>
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: NOT_FOUND
              message: Server not found.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        API token from your CloudBlast account settings. Pass as `Authorization:
        Bearer <token>`.

````