Slack MCP server

by mindstone·io.github.mindstone/mcp-server-slack·v0.3.0

Slack MCP server: channels, messages, threads, reactions, users, files, and scheduled messages

What users say

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Safety scan

not scanned yet

Adoption

Not measured yet

Usage numbers are collected on the next scan

Reviews

Nobody has reviewed Slack yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

No tool declarations could be read from the package source. They show once the server is installed.

Not scanned yet. New registry listings are scanned within a day of import.

Runs npx -y @mindstone/mcp-server-slack on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add mcp-server-slack -- npx -y @mindstone/mcp-server-slack

Is Slack MCP server safe?: Not known yet: the safety scan has not run. New listings are scanned within a few days.
How do I install Slack?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Slack need an API key?: Yes. The registry entry asks for SLACK_CLIENT_SECRET.
Is Slack maintained?: The latest release is v0.3.0.
What can I use instead of Slack?: Servers from other publishers that do the same job: Apple Tools (Unified) MCP server, Agent-Native Dispatch MCP server and no_human MCP server. Compare all Slack alternatives.

Same job from other publishers: the closest match first, then the best rated.

Apple Tools (Unified)
Unified Apple ecosystem MCP server for macOS: Mail, Calendar, Notes, Files, Messages, and more.
not reviewed
Growing
A
Agent-Native Dispatch
Central Slack/Telegram router with jobs, memory, approvals, and A2A delegation
More from BuilderIO →
not reviewed
Established
A
no_human
File a task with your local no_human and check on it: task_add and task_status over stdio.
not reviewed
Established
B
AIquila — Nextcloud MCP Server
Nextcloud MCP server — files, calendar, contacts, mail, maps, notes, tasks & 120+ more tools
not reviewed
Established
C
Open Agreements
Fill standard legal agreement templates (NDAs, SAFEs, NVCA docs, employment) as DOCX files.
not reviewed
Established
A

Local package. It runs on your machine, not through the gateway.

SLACK_CONFIG_PATHPath to the host-managed Slack config directory
SLACK_TEAM_IDSlack workspace team ID (one process per workspace)
SLACK_CLIENT_IDSlack OAuth Connected App client ID. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it.
SLACK_CLIENT_SECRETsecretSlack OAuth Connected App client secret. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it.
SLACK_DISABLE_REFRESHSet to 1 to disable token refresh on this surface (cloud surface)
SLACK_REQUEST_TIMEOUT_MSOverride the upstream timeout (max 300000ms = 5 min)
SLACK_MAX_RETRIESWebClient retries on transient failures (0-20). Lower this on cloud to avoid stacking long retry budgets into multi-minute hangs.
MCP_WORKSPACE_PATHWorkspace directory upload_slack_file reads are constrained to (defaults to the system temp dir when unset)

Claim it to keep the listing current and reply to reviews. Claiming never changes the grade or hides a review.

Shows the safety grade and links back to this page. It updates itself after every scan and review.

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