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Fetches a conversation's history of messages and events.

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

Fetches a conversation's history of messages and events. [GET /conversations.history]

Name on the gateway: slack_api__conversations_history · read-only.

Parameters

NameTypeDescription
tokenstringAuthentication token. Requires scope: conversations:history
channelstringConversation ID to fetch history for.
latestnumberEnd of time range of messages to include in results.
oldestnumberStart of time range of messages to include in results.
inclusivebooleanInclude messages with latest or oldest timestamp in results only when either…
limitintegerThe maximum number of items to return. Fewer than the requested number of…
cursorstringPaginate through collections of data by setting the cursor parameter to a…

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_history",
  "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 fetches a conversation's history of messages and events. tool with token set to ….

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