Slack Explorer MCP

A Model Context Protocol (MCP) server specialized in retrieving information from Slack messages and threads. It provides tools to access messages that the authenticated user can view using a User Token (xoxp).

People who work with Slack and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-07-03 · ★ 50 · #79 OF 105 MAINTAINED COMMUNICATION · VERIFIED 2026-09-18

MIT · Go servers · how we verify → /methodology

01 · Install Slack Explorer MCP

before you install - you'll need

Set SLACK_USER_TOKEN, HTTP_HOST, HTTP_PORT before connecting.

Docker

docker run -i --rm ghcr.io/shibayu36/slack-explorer-mcp:0.12.0

Claude Desktop - add to config

{
  "mcpServers": {
    "shibayu36-slack-explorer-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/shibayu36/slack-explorer-mcp:0.12.0"
      ]
    }
  }
}

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as container (OCI image) - can be sandboxed away from your filesystem

license MIT - declared in the repository

registry namespace io.github.shibayu36 is GitHub-verified and matches the repo owner

03 · What Slack Explorer MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.12.0 · 2026-05-05

Allow exclusion modifiers in search_messages and search_files query field

v0.11.0 · 2026-03-18

Add attachment (unfurl) information to search_messages and get_thread_replies

v0.10.1 · 2026-02-13

Potential fix for code scanning alert no. 1: Workflow does not contain permissions · Add SECURITY.md

04 · Who maintains Slack Explorer MCP

Slack Explorer MCP is maintained by shibayu36. It's the only MCP server we track from this author; the repo dates to Aug 2025.

05 · Facts

repository: github.com/shibayu36/slack-explorer-mcp
category: communication - ranked #79 of 105 actively-maintained communication servers as of 2026-09-18.
registry: io.github.shibayu36/slack-explorer-mcp (active, first published 2025-12-30 · 6 versions)
packages: oci:ghcr.io/shibayu36/slack-explorer-mcp:0.12.0

06 · Slack Explorer MCP FAQ

What is Slack Explorer MCP?

Is Slack Explorer MCP still maintained?

Yes - as of 2026-09-18, its last commit was 2026-07-03. We re-verify nightly.

How do I install Slack Explorer MCP?

Run `docker run -i --rm ghcr.io/shibayu36/slack-explorer-mcp:0.12.0`. The README documents 3 environment variables (SLACK_USER_TOKEN, HTTP_HOST, HTTP_PORT) to set first. Set SLACK_USER_TOKEN, HTTP_HOST, HTTP_PORT before connecting. You can also paste the ready-made client config above.

07 · Alternatives to Slack Explorer MCP

Alternatives to Slack Explorer MCP

Maintained communication servers if Slack Explorer MCP isn't the fit.

Pairs well with

Servers that cover what Slack Explorer MCP doesn't - only shown when the pairing reason fits the companion.

More communication MCP servers · Kwork · Microsoft Teams · Mistral MCP · Synapbus · Teamwork MCP Server

More Go MCP servers · Code Pathfinder · PCI DSS v4.0.1 Compliance Checker · Signadot MCP Server · SigNoz MCP Server · Ckb · see all