0n3
MCP servers · Slack · custom connector

Connect Grok Bot (xAI) to Slack

One line gives Grok Bot (xAI) your Slack account as tools: 45 endpoints, send message, channels, threads, called with your own connection. No key in the prompt, a receipt for every call, revoke Grok Bot (xAI)'s access alone any time.

Get the line for Grok Bot (xAI)Connect Slack first

Three steps

  1. Create a free 0n3 account and connect Slack. Paste a key or sign in; it lands in your vault, encrypted.
  2. Install 0n3 into Grok Bot (xAI). xAI's always-on Grok Bot. Add 0n3 as a custom connector once, and your Bot can use every app you added, around the clock.
  3. Ask Grok Bot (xAI): whoami. Then: "Send a message in Slack".
Add 0n3 to Grok Bot (desktop app)
  1. Open Grok Bot on your computer. In the sidebar, click Connect apps.
  2. At the bottom, click Add a custom connector.
  3. For Name, type 0n3. For Type, pick Remote HTTPS. For Server URL, type https://0n3.app/mcp.
  4. Under HTTP headers, add Authorization with the value Bearer <your 0n token>
  5. Click Add plugin.
Then try it: send your Bot this
  1. "Use 0n3: who am I, and which apps can you reach?"
  2. "Every weekday at 8, use 0n3 to list today's CRM appointments and new Stripe payments, and post a summary to me."

The line above carries a placeholder; 0n3.app/install mints a real key named for Grok Bot (xAI) and fills it in.

What Grok Bot (xAI) can then do in Slack

Send message · Post, update, delete, and schedule messages7
Send a messagePOST /chat.postMessage
Update a messagePOST /chat.update
Delete a messagePOST /chat.delete
Schedule a messagePOST /chat.scheduleMessage
Pin messagePOST /pins.add
Unpin messagePOST /pins.remove
Search messagesGET /search.messages
Channels · Full channel lifecycle management13
List channelsGET /conversations.list
Create a channelPOST /conversations.create
Archive a channelPOST /conversations.archive
Unarchive channelPOST /conversations.unarchive
Rename channelPOST /conversations.rename
Set a channel topicPOST /conversations.setTopic
Set a channel purposePOST /conversations.setPurpose
Invite a to channelPOST /conversations.invite
Kick from channelPOST /conversations.kick
Channel historyGET /conversations.history
Channel infoGET /conversations.info
Join channelPOST /conversations.join
Threads · Thread replies and conversation management2
Reply a to threadPOST /chat.postMessage
Get thread repliesGET /conversations.replies
Users · List users, get profiles, set status4
List usersGET /users.list
Get an userGET /users.info
Get an user profileGET /users.profile.get
Set an user statusPOST /users.profile.set
Files · Upload, list, delete, and share files5
Upload a filePOST /files.upload
List filesGET /files.list
Delete a filePOST /files.delete
Share filePOST /files.sharedPublicURL
Search filesGET /search.files
Reactions · Emoji reactions on messages3
Add a reactionPOST /reactions.add
Remove a reactionPOST /reactions.remove
List reactionsGET /reactions.get

All 45 Slack endpoints →

Slack in other AI clients

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Grok Bot (xAI) with other apps

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