---
title: "LinkedIn proxy: react to a message with an emoji"
method: POST
path: "/api/linkedin/{account_id}/react-message"
tags: ["LinkedIn – Inbox"]
---

# LinkedIn proxy: react to a message with an emoji

`POST /api/linkedin/{account_id}/react-message`

## Request

- Base URL: `https://api.reachmcp.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.reachmcp.com/api/linkedin/{account_id}/react-message`
- Auth: API key in header `X-API-Key`

Adds or removes an emoji reaction on a LinkedIn message.

Set ``react=false`` to remove the reaction.

``message_urn`` is the full message URN returned by the ``/conversations/{id}/messages`` endpoint (e.g. ``urn:li:msg_message:(urn:li:fsd_profile:…,123456789)``).

``emoji`` is the Unicode emoji character (e.g. ``👍``, ``❤️``).

Calls ``voyagerMessagingDashMessengerMessages?action=reactWithEmoji`` or ``?action=unreactWithEmoji``.

## Path parameters

- `account_id` integer, required

## Query parameters

- `message_urn` string, required: Full message URN to react to.
- `emoji` string, required: Unicode emoji character (e.g. 👍, ❤️).
- `react` boolean: True to add the reaction, False to remove it.
- `conversation_linkedin_id` string, nullable: Conversation ID — when provided the conversation is marked as read.

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/reachmcp/apis/mcp-reach.md) · [All operations](https://skmtc.dev/reachmcp/apis/mcp-reach/llms.txt) · [OpenAPI document](https://skmtc.dev/reachmcp/apis/mcp-reach/revisions/1a85fdaf3f7c?raw)