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 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