Slackdump
Save or export your private and public Slack messages, threads, files, and users locally without admin privileges.
What is Slackdump?
Slackdump is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to save or export your private and public slack messages, threads, files, and users locally without admin privileges.
Save or export your private and public Slack messages, threads, files, and users locally without admin privileges.
This server falls under the Search & Data Extraction category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Save or export your private and public Slack messages, threa
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx slackdumpConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Slackdump
Slackdump is an open-source tool that exports Slack workspace data — messages, threads, files, and user lists — to local storage without requiring Slack admin privileges. It ships with a read-only MCP server mode that lets AI assistants like Claude query an archived Slack workspace through structured tools, enabling search and analysis over exported conversations. Teams use it for compliance archiving, workspace migrations to Mattermost or other platforms, and AI-powered analysis of historical Slack data.
Prerequisites
- Go 1.21+ if building from source, or a pre-built binary from the releases page
- A Slack account with access to the workspace you want to export (no admin role required)
- Slack session tokens (xoxc-... and xoxd-... cookies) obtained via browser session or the EZ-Login 3000 wizard
- An MCP-compatible client such as Claude Desktop or Claude Code
Install Slackdump
Install Slackdump via Homebrew on macOS, or download a pre-built binary for your OS from the GitHub releases page.
brew install slackdumpAuthenticate with your Slack workspace
Run the built-in wizard to authenticate. The EZ-Login 3000 flow opens a browser session so you do not need to manually extract tokens.
slackdump wizExport your Slack workspace
Dump channels, messages, and files to a local directory. Slackdump creates a structured archive that the MCP server will read.
slackdump export -o ./my-slack-archiveStart the MCP server in a new Claude Code project
Use the built-in shortcut to create a Claude Code project pre-configured to use the Slackdump MCP server against your archive.
slackdump mcp -new claude-code ~/my-slack-projectOr add Slackdump MCP manually to Claude Desktop
Edit your Claude Desktop configuration to run Slackdump in MCP mode, pointing it at your export directory.
{
"mcpServers": {
"slackdump": {
"command": "slackdump",
"args": ["mcp", "--archive", "/path/to/my-slack-archive"]
}
}
}Slackdump Examples
Client configuration
Claude Desktop configuration to connect to a Slackdump MCP server reading a local archive.
{
"mcpServers": {
"slackdump": {
"command": "slackdump",
"args": ["mcp", "--archive", "/Users/you/my-slack-archive"]
}
}
}Prompts to try
Example prompts to use with Claude once the Slackdump MCP server is connected.
- "List all channels in the archive and tell me which ones have the most messages."
- "Get the last 50 messages from the #engineering channel and summarize what the team was working on."
- "Find the thread where we discussed the Q3 release and give me a summary of the decisions made."
- "Who are the most active users in the #general channel based on message count?"Troubleshooting Slackdump
Authentication fails with 'invalid token' errors
Slack session tokens (xoxc- and xoxd-) expire regularly. Re-run 'slackdump wiz' to obtain fresh tokens from an active browser session.
MCP server returns 'archive not found' or fails to list channels
Verify that the --archive path points to a completed Slackdump export directory containing channels/ and users.json. Run a fresh export if the directory is empty or incomplete.
Private channels or DMs are missing from the export
Slackdump can only export channels and DMs that the authenticated user is a member of. Join the channels before exporting, or use a different account with broader access.
Frequently Asked Questions about Slackdump
What is Slackdump?
Slackdump is a Model Context Protocol (MCP) server that save or export your private and public slack messages, threads, files, and users locally without admin privileges. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Slackdump?
Follow the installation instructions on the Slackdump GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Slackdump?
Slackdump works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Slackdump free to use?
Yes, Slackdump is open source and available under the AGPL-3.0 license. You can use it freely in both personal and commercial projects.
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