io.github.mindstone

mcp-server-slack

Slack

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

stdiocommunityservice

Package Details

Transportstdio
Runtimenpx

Environment Variables

SLACK_CONFIG_PATH(file)
Required

Path to the host-managed Slack config directory

SLACK_TEAM_ID(str)
Required

Slack workspace team ID (one process per workspace)

SLACK_CLIENT_ID(str)
Required

Slack OAuth Connected App client ID

SLACK_CLIENT_SECRET(str)
RequiredSecret

Slack OAuth Connected App client secret

SLACK_DISABLE_REFRESH(str)

Set to 1 to disable token refresh on this surface (cloud surface)

SLACK_REQUEST_TIMEOUT_MS(num)
Default:60000

Override the upstream timeout (max 300000ms = 5 min)

SLACK_MAX_RETRIES(num)
Default:10

WebClient retries on transient failures (0-20). Lower this on cloud to avoid stacking long retry budgets into multi-minute hangs.