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

# Get Multiple Messages From Different Rooms

> Fetches up to 100 messages by ID in a single request. The messages can belong to different rooms. IDs that do not match a visible message are skipped. You must have access to every room containing the requested messages.

This endpoint replaces the deprecated `getMessages` Realtime API method, which will be removed in 9.0.0.


### Changelog
| Version | Description |
| ------- | ----------- |
| 8.9.0   | Added       |

## OpenAPI

````json POST /api/v1/chat.getMessages
{
  "openapi": "3.0.0",
  "info": {
    "version": "1.0.0",
    "title": "Messaging"
  },
  "servers": [
    {
      "url": "https://apiexplorer.support.rocket.chat"
    }
  ],
  "tags": [
    {
      "name": "Chat"
    },
    {
      "name": "Direct Messages"
    },
    {
      "name": "Auto-Translate"
    }
  ],
  "paths": {
    "/api/v1/chat.getMessages": {
      "post": {
        "tags": [
          "Chat"
        ],
        "summary": "Get Multiple Messages From Different Rooms",
        "description": "Fetches up to 100 messages by ID in a single request. The messages can belong to different rooms. IDs that do not match a visible message are skipped. You must have access to every room containing the requested messages.\n\nThis endpoint replaces the deprecated `getMessages` Realtime API method, which will be removed in 9.0.0.\n\n\n### Changelog\n| Version | Description |\n| ------- | ----------- |\n| 8.9.0   | Added       |",
        "operationId": "post-api-v1-chat.getMessages",
        "parameters": [
          {
            "$ref": "#/components/parameters/Auth-Token"
          },
          {
            "$ref": "#/components/parameters/UserId"
          }
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "required": [
                  "messageIds"
                ],
                "additionalProperties": false,
                "properties": {
                  "messageIds": {
                    "type": "array",
                    "description": "The IDs of the messages to fetch.",
                    "example": [
                      "Xq8sLpW3nZr2TmKeA",
                      "Bv5nTq7RkWz3YpLcD"
                    ],
                    "minItems": 1,
                    "maxItems": 100,
                    "items": {
                      "type": "string",
                      "minLength": 1
                    }
                  }
                }
              },
              "examples": {
                "Example": {
                  "value": {
                    "messageIds": [
                      "Xq8sLpW3nZr2TmKeA",
                      "Bv5nTq7RkWz3YpLcD"
                    ]
                  }
                }
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "OK",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "messages": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "properties": {
                          "_id": {
                            "type": "string"
                          },
                          "rid": {
                            "type": "string"
                          },
                          "msg": {
                            "type": "string"
                          },
                          "ts": {
                            "type": "string"
                          },
                          "u": {
                            "type": "object",
                            "properties": {
                              "_id": {
                                "type": "string"
                              },
                              "username": {
                                "type": "string"
                              },
                              "name": {
                                "type": "string"
                              }
                            }
                          },
                          "_updatedAt": {
                            "type": "string"
                          },
                          "mentions": {
                            "type": "array",
                            "items": {
                              "type": "object"
                            }
                          },
                          "channels": {
                            "type": "array",
                            "items": {
                              "type": "object"
                            }
                          }
                        }
                      }
                    },
                    "success": {
                      "type": "boolean"
                    }
                  }
                },
                "examples": {
                  "Success Example": {
                    "value": {
                      "messages": [
                        {
                          "_id": "Xq8sLpW3nZr2TmKeA",
                          "rid": "6GFJ3tbmHiyHbahmC",
                          "msg": "The release checklist is ready for review.",
                          "ts": "2026-09-23T10:05:00Z",
                          "u": {
                            "_id": "rbAXPnMktTFbNpwtJ",
                            "username": "dana.reyes",
                            "name": "Dana Reyes"
                          },
                          "_updatedAt": "2026-09-23T10:05:00Z",
                          "mentions": [],
                          "channels": []
                        },
                        {
                          "_id": "Bv5nTq7RkWz3YpLcD",
                          "rid": "GENERAL",
                          "msg": "Standup moved to 10:30 today.",
                          "ts": "2026-09-22T08:15:00Z",
                          "u": {
                            "_id": "kP3wQz8LmNvT5rXyB",
                            "username": "sam.okafor",
                            "name": "Sam Okafor"
                          },
                          "_updatedAt": "2026-09-22T08:15:00Z",
                          "mentions": [],
                          "channels": []
                        }
                      ],
                      "success": true
                    }
                  }
                }
              }
            }
          },
          "400": {
            "description": "Bad Request",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "success": {
                      "type": "boolean"
                    },
                    "error": {
                      "type": "string"
                    },
                    "errorType": {
                      "type": "string"
                    }
                  }
                },
                "examples": {
                  "Missing Parameter": {
                    "value": {
                      "success": false,
                      "error": "must have required property 'messageIds' [invalid-params]",
                      "errorType": "invalid-params"
                    }
                  }
                }
              }
            }
          },
          "401": {
            "$ref": "#/components/responses/authorizationError"
          },
          "403": {
            "description": "Forbidden. At least one of the messages belongs to a room you cannot access.",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "success": {
                      "type": "boolean"
                    },
                    "error": {
                      "type": "string"
                    }
                  }
                },
                "examples": {
                  "Permission Error": {
                    "value": {
                      "success": false,
                      "error": "unauthorized"
                    }
                  }
                }
              }
            }
          },
          "404": {
            "description": "Not Found. None of the IDs match a visible message.",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "success": {
                      "type": "boolean"
                    },
                    "error": {
                      "type": "string"
                    }
                  }
                },
                "examples": {
                  "Not Found": {
                    "value": {
                      "success": false,
                      "error": "Resource not found"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "parameters": {
      "Auth-Token": {
        "name": "X-Auth-Token",
        "in": "header",
        "description": "The `authToken` of the authenticated user.",
        "required": true,
        "schema": {
          "type": "string"
        },
        "example": "RScctEHSmLGZGywfIhWyRpyofhKOiMoUIpimhvheU3f"
      },
      "UserId": {
        "name": "X-User-Id",
        "in": "header",
        "description": "The `userId` of the authenticated user.",
        "required": true,
        "schema": {
          "type": "string"
        },
        "example": "rbAXPnMktTFbNpwtJ"
      }
    },
    "responses": {
      "authorizationError": {
        "description": "Unauthorized",
        "content": {
          "application/json": {
            "schema": {
              "type": "object",
              "properties": {
                "status": {
                  "type": "string"
                },
                "message": {
                  "type": "string"
                }
              }
            },
            "examples": {
              "Authorization Error": {
                "value": {
                  "status": "error",
                  "message": "You must be logged in to do this."
                }
              }
            }
          }
        }
      }
    }
  }
}
````