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Lists all channels in a Slack team.

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

Lists all channels in a Slack team. [GET /conversations.list]

Name on the gateway: slack_api__conversations_list · read-only.

Parameters

Name	Type	Description
`token`	`string`	Authentication token. Requires scope: conversations:read
`exclude_archived`	`boolean`	Set to true to exclude archived channels from the list
`types`	`string`	Mix and match channel types by providing a comma-separated list of any…
`limit`	`integer`	The maximum number of items to return. Fewer than the requested number of…
`cursor`	`string`	Paginate through collections of data by setting the cursor parameter to a…

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_list",
  "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"

Use the lists all channels in a slack team. tool with token set to ….