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Add an emoji.

An MCP tool from the Slack API server, hosted on mcp.hjlabs.in.

Add an emoji. [POST /admin.emoji.add]

Name on the gateway: slack_api__admin_emoji_add · may change things.

Parameters

NameTypeDescription
token requiredstringAuthentication token. Requires scope: admin.teams:write
name requiredstringThe name of the emoji to be removed. Colons (:myemoji:) around the value are…
url requiredstringThe URL of a file to use as an image for the emoji. Square images under 128KB…

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "slack_api__admin_emoji_add",
  "arguments": {
    "token": "…",
    "name": "…",
    "url": "…"
  }
}

Or connect the Slack API server directly, which lists 174 tools including this one:

Run in your terminal
claude mcp add --transport http hj-slack-api https://mcp.hjlabs.in/mcp/slack-api \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the add an emoji. tool with token set to ….

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