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Invites users to a channel.

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

Invites users to a channel. [POST /conversations.invite]

Name on the gateway: slack_api__conversations_invite · may change things.

Parameters

NameTypeDescription
channelstringThe ID of the public or private channel to invite user(s) to.
usersstringA comma separated list of user IDs. Up to 1000 users may be listed.

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__conversations_invite",
  "arguments": {}
}

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 invites users to a channel. tool with channel set to ….

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