---
title: "Update Message"
method: PATCH
path: "/v0/inboxes/{inbox_id}/messages/{message_id}"
tags: ["InboxesMessages"]
---

# Update Message

`PATCH /v0/inboxes/{inbox_id}/messages/{message_id}`

## Request

- Base URL: `https://api.agentmail.to`
- URL: `https://api.agentmail.to/v0/inboxes/{inbox_id}/messages/{message_id}`
- Auth: HTTP bearer

**CLI:**
```bash
agentmail inboxes:messages update --inbox-id <inbox_id> --message-id <message_id> --add-label read --remove-label unread
```

## Path parameters

- `inbox_id` string, required: The ID of the inbox.
- `message_id` string, required: ID of message.

## Request body

- UpdateMessageRequest
  - `add_labels` union: Label or list of labels.
    - string
    - string[]
  - `remove_labels` union: Label or list of labels.
    - string
    - string[]

## Response `200`

- UpdateMessageResponse
  - `message_id` string, required: ID of message.
  - `labels` string[], required: Labels of message.

## Other responses

- `400`
- `404`

---

[API](https://skmtc.dev/agentmail-to/apis/agentmail-cli-speakeasy-api.md) - [All operations](https://skmtc.dev/agentmail-to/apis/agentmail-cli-speakeasy-api/llms.txt) - [OpenAPI document](https://skmtc.dev/agentmail-to/apis/agentmail-cli-speakeasy-api/revisions/869b7f1c360c?raw)