Elasticsearch Cat API

openapi: 3.1.0
info:
  title: Elasticsearch REST Cat API
  version: 8.x
  description: Elasticsearch REST API provides programmatic access to document indexing, searching, aggregations, index lifecycle, and cluster operations. Supports basic authentication and API keys.
  contact:
    name: Elastic
    url: https://www.elastic.co/guide/en/elasticsearch/reference/current/rest-apis.html
servers:
- url: https://{host}:{port}
  description: Elasticsearch cluster
  variables:
    host:
      default: localhost
    port:
      default: '9200'
security:
- basicAuth: []
- apiKeyAuth: []
tags:
- name: Cat
paths:
  /_cat/indices:
    get:
      summary: Cat indices
      operationId: catIndices
      tags:
      - Cat
      parameters:
      - in: query
        name: v
        schema:
          type: boolean
      responses:
        '200':
          description: Plain text table
          content:
            text/plain:
              schema:
                type: string
  /_cat/nodes:
    get:
      summary: Cat nodes
      operationId: catNodes
      tags:
      - Cat
      responses:
        '200':
          description: Plain text table
          content:
            text/plain:
              schema:
                type: string
  /_cat/health:
    get:
      summary: Cat health
      operationId: catHealth
      tags:
      - Cat
      responses:
        '200':
          description: Plain text table
          content:
            text/plain:
              schema:
                type: string
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization