OpenSearch/rest-api-spec/api/indices.exists.indices.json

{
  "indices.exists.indices": {
    "documentation": "",
    "methods": ["HEAD"],
    "url": {
      "path": "/{index}",
      "paths": ["/{index}"],
      "parts": {
        "index": {
        }
      },
      "params": {
        "index": {
        }
      }
    },
    "body": null
  }
}