Slack runs on your own machine — the client starts it, so there is no endpoint to ping. 559 installs a week from npm. Last commit 30 Aug 2026.
MCP server for Slack — read/write messages, manage threads, and react to messages.
Nothing serious here today
Today is the operative word: we check Slack every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add slack -e 'SLACK_BOT_TOKEN=<SLACK_BOT_TOKEN>' -- npx -y slack-workspace-mcp-server{
"mcpServers": {
"slack": {
"command": "npx",
"args": [
"-y",
"slack-workspace-mcp-server"
],
"env": {
"SLACK_BOT_TOKEN": "<SLACK_BOT_TOKEN>"
}
}
}
}[mcp_servers.slack]
command = "npx"
args = ["-y", "slack-workspace-mcp-server"]
env = { SLACK_BOT_TOKEN = "<SLACK_BOT_TOKEN>" }{
"mcpServers": {
"slack": {
"command": "npx",
"args": [
"-y",
"slack-workspace-mcp-server"
],
"env": {
"SLACK_BOT_TOKEN": "<SLACK_BOT_TOKEN>"
}
}
}
}{
"servers": {
"slack": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"slack-workspace-mcp-server"
],
"env": {
"SLACK_BOT_TOKEN": "<SLACK_BOT_TOKEN>"
}
}
}
}Put your own value in place of
<SLACK_BOT_TOKEN> (Slack Bot User OAuth Token starting with xoxb-).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
ENABLED_TOOLGROUPS (Comma-separated list of tool groups to enable (readonly, write)).
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Slack — questions
Answers built from our own checks of this server.