AI Plugin Index
Slack
CommunityMCP server by mindstone · updated · ★ 13
Slack MCP server: channels, messages, threads, reactions, users, files, and scheduled messages Slack is a community project by mindstone, not verified by a company domain.
Last commit 6 days ago
No licence found, so reuse rights are unclear
Clear description, published package or server URL, original repository
Not checked yet. What we check
What you need
| Setting | Needed | What it is |
|---|---|---|
SLACK_CONFIG_PATHEnvironment variable | Required | Path to the host-managed Slack config directory |
SLACK_TEAM_IDEnvironment variable | Required | Slack workspace team ID (one process per workspace) |
SLACK_CLIENT_IDEnvironment variable | Optional | Slack OAuth Connected App client ID. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it. |
SLACK_CLIENT_SECRETEnvironment variable, secret | Optional | Slack OAuth Connected App client secret. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it. |
SLACK_DISABLE_REFRESHEnvironment variable | Optional | Set to 1 to disable token refresh on this surface (cloud surface) |
SLACK_REQUEST_TIMEOUT_MSEnvironment variable | Optional | Override the upstream timeout (max 300000ms = 5 min) Default: 60000 |
SLACK_MAX_RETRIESEnvironment variable | Optional | WebClient retries on transient failures (0-20). Lower this on cloud to avoid stacking long retry budgets into multi-minute hangs. Default: 10 |
MCP_WORKSPACE_PATHEnvironment variable | Optional | Workspace directory upload_slack_file reads are constrained to (defaults to the system temp dir when unset) |
From the publisher's entry in the official MCP Registry. Required settings are already in the install config below as placeholders.
Install Slack
Built from the published package, never by AIclaude mcp add slack -e SLACK_CONFIG_PATH=YOUR_SLACK_CONFIG_PATH -e SLACK_TEAM_ID=YOUR_SLACK_TEAM_ID -- npx -y @mindstone/mcp-server-slackRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"slack": {
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-slack"
],
"env": {
"SLACK_CONFIG_PATH": "YOUR_SLACK_CONFIG_PATH",
"SLACK_TEAM_ID": "YOUR_SLACK_TEAM_ID"
}
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"slack": {
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-slack"
],
"env": {
"SLACK_CONFIG_PATH": "YOUR_SLACK_CONFIG_PATH",
"SLACK_TEAM_ID": "YOUR_SLACK_TEAM_ID"
}
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"slack": {
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-slack"
],
"env": {
"SLACK_CONFIG_PATH": "YOUR_SLACK_CONFIG_PATH",
"SLACK_TEAM_ID": "YOUR_SLACK_TEAM_ID"
}
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add slack --env SLACK_CONFIG_PATH=YOUR_SLACK_CONFIG_PATH --env SLACK_TEAM_ID=YOUR_SLACK_TEAM_ID -- npx -y @mindstone/mcp-server-slack{
"mcpServers": {
"slack": {
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-slack"
],
"env": {
"SLACK_CONFIG_PATH": "YOUR_SLACK_CONFIG_PATH",
"SLACK_TEAM_ID": "YOUR_SLACK_TEAM_ID"
}
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add slack npx -y @mindstone/mcp-server-slackGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the slack block.
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Slack: common questions
How do I install Slack?
In Claude Code run claude mcp add slack -e SLACK_CONFIG_PATH=YOUR_SLACK_CONFIG_PATH -e SLACK_TEAM_ID=YOUR_SLACK_TEAM_ID -- npx -y @mindstone/mcp-server-slack. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Slack the official server?
Slack is a community project by mindstone, not verified by a company domain.
Is Slack free?
The code is published under the NOASSERTION licence. The service it connects to may have its own pricing.
Is Slack safe to use?
It scores 58 of 100. Grades: maintenance A, licence F, quality C. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to Slack?
Similar MCP servers: mcp-server, Agent-Native Content, Computer, Desktop Commander.
Does Slack work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.