Lifts WxO Slack limits: every-message wake-up, multi-channel MCP. https://markusvankempen.github.io/
Connect Runs on your machine
claude mcp add slack-wxo-mcp-gateway -e SLACK_BOT_TOKEN=<SLACK_BOT_TOKEN> -e WXO_INSTANCE_URL=<WXO_INSTANCE_URL> -e WXO_API_KEY=<WXO_API_KEY> -e WXO_AGENT_ID=<WXO_AGENT_ID> -e GATEWAY_TRANSPORT=<GATEWAY_TRANSPORT> -e SLACK_SIGNING_SECRET=<SLACK_SIGNING_SECRET> -- npx -y @markusvankempen/[email protected]{
"mcpServers": {
"slack-wxo-mcp-gateway": {
"command": "npx",
"args": [
"-y",
"@markusvankempen/[email protected]"
],
"env": {
"SLACK_BOT_TOKEN": "<SLACK_BOT_TOKEN>",
"WXO_INSTANCE_URL": "<WXO_INSTANCE_URL>",
"WXO_API_KEY": "<WXO_API_KEY>",
"WXO_AGENT_ID": "<WXO_AGENT_ID>",
"GATEWAY_TRANSPORT": "<GATEWAY_TRANSPORT>",
"SLACK_SIGNING_SECRET": "<SLACK_SIGNING_SECRET>"
}
}
}
}{
"mcpServers": {
"slack-wxo-mcp-gateway": {
"command": "npx",
"args": [
"-y",
"@markusvankempen/[email protected]"
],
"env": {
"SLACK_BOT_TOKEN": "<SLACK_BOT_TOKEN>",
"WXO_INSTANCE_URL": "<WXO_INSTANCE_URL>",
"WXO_API_KEY": "<WXO_API_KEY>",
"WXO_AGENT_ID": "<WXO_AGENT_ID>",
"GATEWAY_TRANSPORT": "<GATEWAY_TRANSPORT>",
"SLACK_SIGNING_SECRET": "<SLACK_SIGNING_SECRET>"
}
}
}
}{
"servers": {
"slack-wxo-mcp-gateway": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@markusvankempen/[email protected]"
],
"env": {
"SLACK_BOT_TOKEN": "<SLACK_BOT_TOKEN>",
"WXO_INSTANCE_URL": "<WXO_INSTANCE_URL>",
"WXO_API_KEY": "<WXO_API_KEY>",
"WXO_AGENT_ID": "<WXO_AGENT_ID>",
"GATEWAY_TRANSPORT": "<GATEWAY_TRANSPORT>",
"SLACK_SIGNING_SECRET": "<SLACK_SIGNING_SECRET>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
SLACK_BOT_TOKENRequired, secret | Slack Bot User OAuth Token (xoxb-…) |
WXO_INSTANCE_URLRequired | watsonx Orchestrate instance base URL |
WXO_API_KEYRequired, secret | watsonx Orchestrate / MCSP API key |
WXO_AGENT_IDOptional | Default WxO agent id for bindings |
GATEWAY_TRANSPORTOptional | stdio (IDE) or streamable-http (hosted). Default for npx IDE use: stdio |
SLACK_SIGNING_SECRETOptional, secret | Slack signing secret (Events mode) |
Details
| Package | @markusvankempen/[email protected] (NPM, stdio) |
| First published | 19 Jul 2026 |
| Last updated | 19 Jul 2026 |
| Registry name | io.github.markusvankempen/slack-wxo-mcp-gateway |
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