How do I install the claude mcp slack mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `API_KEY`, `SLACK_TOKEN`, `ANTHROPIC_API_KEY`, `CUSTOM_API_KEY` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

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Claude MCP Slack MCP Server

Standalone Slack MCP server for Claude Code Action

Local serverstdioTypeScript

What is the Claude MCP Slack MCP Server?

Standalone Slack MCP server for Claude Code Action

What the server does

A standalone GitHub Action that provides Slack MCP (Model Context Protocol) server functionality for Claude Code Action, enabling secure Slack image downloads and integrations.

🔐 Secure Slack Integration: Authenticated access to Slack files using Bot User OAuth tokens
📁 Flexible File Management: Customizable download directories with security validation
🐳 Docker Support: Run locally or in containers with proper security constraints
🛡️ Security First: Input validation, path traversal prevention, and secure token handling
🧪 Comprehensive Testing: Unit, integration, and security test suites
⚡ Easy Integration: Drop-in compatibility with claude-code-action

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
name	Setup Slack MCP
slack_image_download
slack_health_check	Checks the health and configuration of the Slack MCP server.

Configuration

Variable	Description	Required
API_KEY	Credential the server authenticates with.	Yes
SLACK_TOKEN	Credential the server authenticates with.	Yes
ANTHROPIC_API_KEY	Credential the server authenticates with.	Yes
CUSTOM_API_KEY	Credential the server authenticates with.	Yes

Example prompts to try

“Use Claude MCP Slack to name.”
“Use Claude MCP Slack to Inputs.”
“Use Claude MCP Slack to Outputs.”

Frequently asked questions

Standalone Slack MCP server for Claude Code Action Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.

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