Slack MCP Server
Give your AI the power to post messages and read through the Slack API, through one hosted MCP server you do not have to install or run. UniversalBench is the server: connect one URL and your AI gets Slack plus every other capability, with safety built in. Works with Claude, ChatGPT, Gemini, and any MCP-compatible AI.
You do not have to host a Slack MCP server
There are open source Slack MCP servers you can download, configure, and run yourself, one capability at a time. UniversalBench takes that off your plate. It is a hosted MCP server, so there is nothing to install, nothing to keep running, and the same single connection also covers databases, code, web search, GitHub, files, and more.
| Self hosted server | UniversalBench | |
|---|---|---|
| Setup | Download, configure, run it | Paste one URL |
| Maintenance | You keep it running | Hosted for you |
| Coverage | Slack only | Slack plus 20+ capabilities |
| Safety | You secure it | Guards built in |
| Credentials | Wired into config | Encrypted vault, never shown |
Set up the Slack MCP server in three steps
Connect the one MCP URL
Add the single UniversalBench MCP URL to your AI: Claude, ChatGPT, Gemini, or any MCP-compatible client. That one server carries this capability and every other.
Save your credential once
Create a Slack incoming webhook (or a bot token to read), then save it in your secret vault as SLACK_WEBHOOK_URL. It unlocks the matching capability automatically and is never shown again.
Ask in plain language
Ask for what you want. The work runs on the hosted server and only the result returns to your chat.
See the Slack MCP server in action
A real example. You ask in plain language and your AI posts to Slack through the hosted server, using a secret you saved once.
To post, you save a Slack incoming webhook once as the secret value. To read or act through the Slack API, save a bot token instead. Either way it stays in your secret vault and never appears in the chat.
Common things people build with the Slack MCP server
- ✓Post an alert when a number crosses a threshold
- ✓Send a daily or weekly digest to a channel
- ✓Announce a deploy or release to the team
- ✓Turn a chat request into a posted update
- ✓Read recent messages and summarize them, with a bot token
- ✓Route the right answer to the right channel
What your AI can do
- ✓Let your AI post messages and read through the Slack API, on demand and in plain language
- ✓Combine it with other tools in one request, no second server to wire up
- ✓Keep your credentials in an encrypted secret vault, never pasted into the chat
Frequently asked questions
Is there an official Slack MCP server?
There are open source Slack MCP servers you can self host. UniversalBench is the hosted option: one URL gives your AI Slack and many other capabilities without running a server yourself.
Do I need to install or host anything?
No. UniversalBench is the hosted MCP server. You paste one URL into your AI and save your credential once in the secret vault, and it works.
Does it work with ChatGPT and Gemini?
Yes. It connects over the standard MCP protocol, so it works with Claude, ChatGPT, Gemini, and any MCP-compatible AI.
