Slack ↔ WxO MCP Gateway

An MCP gateway that routes multiple Slack channels to multiple Watsonx Orchestrate agents, enabling every-message wake-ups, multi-channel to multi-agent routing, and clean in-thread replies. It provides a streamable HTTP toolkit for AI IDEs like VS Code and Cursor, lifting standard WxO Slack limitations without replacing the underlying agents.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by Markus van Kempen

Vendor documentation

What you can do with it

Route multiple Slack channels to different Watsonx Orchestrate agents
Enable every-message wake-ups using poller or Slack Events
Provide in-thread replies with context from Slack threads
Expose an MCP toolkit via streamable HTTP for IDE integration

Source and maintenance

Community listingRegistry 1.0.3

mcp-registry: io.github.markusvankempen/slack-wxo-mcp-gateway@1.0.3 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@markusvankempen/slack-wxo-mcp-gateway 1.0.3

npmnpx

@markusvankempen/slack-wxo-mcp-gateway package definition

{
  "version": "1.0.3",
  "transport": "stdio",
  "identifier": "@markusvankempen/slack-wxo-mcp-gateway",
  "runtimeHint": "npx",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "--stdio"
    }
  ],
  "environmentVariables": [
    {
      "name": "SLACK_BOT_TOKEN",
      "format": "string",
      "isRequired": true,
      "description": "Slack Bot User OAuth Token (xoxb-…)"
    },
    {
      "name": "WXO_INSTANCE_URL",
      "format": "string",
      "isRequired": true,
      "description": "watsonx Orchestrate instance base URL"
    },
    {
      "name": "WXO_API_KEY",
      "format": "string",
      "isRequired": true,
      "description": "watsonx Orchestrate / MCSP API key"
    },
    {
      "name": "WXO_AGENT_ID",
      "format": "string",
      "description": "Default WxO agent id for bindings"
    },
    {
      "name": "GATEWAY_TRANSPORT",
      "format": "string",
      "description": "stdio (IDE) or streamable-http (hosted). Default for npx IDE use: stdio"
    },
    {
      "name": "SLACK_SIGNING_SECRET",
      "format": "string",
      "description": "Slack signing secret (Events mode)"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "slack-wxo-mcp-gateway": {
      "command": "npx",
      "args": [
        "-y",
        "@markusvankempen/slack-wxo-mcp-gateway@1.0.3",
        "--stdio"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "<YOUR_SLACK_BOT_TOKEN>",
        "WXO_INSTANCE_URL": "<YOUR_WXO_INSTANCE_URL>",
        "WXO_API_KEY": "<YOUR_WXO_API_KEY>",
        "WXO_AGENT_ID": "<YOUR_WXO_AGENT_ID>",
        "GATEWAY_TRANSPORT": "<YOUR_GATEWAY_TRANSPORT>",
        "SLACK_SIGNING_SECRET": "<YOUR_SLACK_SIGNING_SECRET>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "slack-wxo-mcp-gateway": {
      "command": "npx",
      "args": [
        "-y",
        "@markusvankempen/slack-wxo-mcp-gateway@1.0.3",
        "--stdio"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "<YOUR_SLACK_BOT_TOKEN>",
        "WXO_INSTANCE_URL": "<YOUR_WXO_INSTANCE_URL>",
        "WXO_API_KEY": "<YOUR_WXO_API_KEY>",
        "WXO_AGENT_ID": "<YOUR_WXO_AGENT_ID>",
        "GATEWAY_TRANSPORT": "<YOUR_GATEWAY_TRANSPORT>",
        "SLACK_SIGNING_SECRET": "<YOUR_SLACK_SIGNING_SECRET>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "slack-wxo-mcp-gateway": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@markusvankempen/slack-wxo-mcp-gateway@1.0.3",
        "--stdio"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "<YOUR_SLACK_BOT_TOKEN>",
        "WXO_INSTANCE_URL": "<YOUR_WXO_INSTANCE_URL>",
        "WXO_API_KEY": "<YOUR_WXO_API_KEY>",
        "WXO_AGENT_ID": "<YOUR_WXO_AGENT_ID>",
        "GATEWAY_TRANSPORT": "<YOUR_GATEWAY_TRANSPORT>",
        "SLACK_SIGNING_SECRET": "<YOUR_SLACK_SIGNING_SECRET>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "slack-wxo-mcp-gateway": {
      "command": "npx",
      "args": [
        "-y",
        "@markusvankempen/slack-wxo-mcp-gateway@1.0.3",
        "--stdio"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "<YOUR_SLACK_BOT_TOKEN>",
        "WXO_INSTANCE_URL": "<YOUR_WXO_INSTANCE_URL>",
        "WXO_API_KEY": "<YOUR_WXO_API_KEY>",
        "WXO_AGENT_ID": "<YOUR_WXO_AGENT_ID>",
        "GATEWAY_TRANSPORT": "<YOUR_GATEWAY_TRANSPORT>",
        "SLACK_SIGNING_SECRET": "<YOUR_SLACK_SIGNING_SECRET>"
      }
    }
  }
}

Let your agent find its tools

Find servers like Slack ↔ WxO MCP Gateway from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows

See all 1,976