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Slack MCP by Nova (CIVAI) MCP Server

by civai-nova Your server? Claim it
answering

Slack MCP by Nova (CIVAI) is answering right now. Last checked 7 min ago. It exposes 17 tools.

Use Slack from chat: see channels, catch up on messages, post updates, and reply in threads in your…

Uptime history 5 days of history · worst day 97%
5 days agonow
97.8%
Uptime 24h
90 of 92 checks
17
Tools
read from the server
553 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 126

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 3 November 2026. No other catalogue keeps this.

7 Nov 18 tools appeared channel_info, confirm_email_signin, conversation_history and 15 more
7 Nov 18 tools disappeared channel_info, confirm_email_signin, conversation_history and 15 more
6 Nov 17 tools disappeared channel_info, confirm_email_signin, conversation_history and 14 more
6 Nov a tool appeared slack_android
5 Nov 18 tools appeared channel_info, confirm_email_signin, conversation_history and 15 more
5 Nov 18 tools disappeared channel_info, confirm_email_signin, conversation_history and 15 more
3 Nov 18 tools appeared channel_info, confirm_email_signin, conversation_history and 15 more
3 Nov 18 tools disappeared channel_info, confirm_email_signin, conversation_history and 15 more

Slack MCP by Nova (CIVAI) does not always answer

Over the last week it answered 98.4% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

run in your terminal
claude mcp add mcp-slack_android --transport http https://nova.civai.co/mcp/agents/mcp-slack_android
Settings → Connectors → Add custom connector, then paste this address
https://nova.civai.co/mcp/agents/mcp-slack_android
~/.codex/config.toml
[mcp_servers.mcp-slack_android]
url = "https://nova.civai.co/mcp/agents/mcp-slack_android"
.cursor/mcp.json
{
  "mcpServers": {
    "mcp-slack_android": {
      "url": "https://nova.civai.co/mcp/agents/mcp-slack_android"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-slack_android": {
      "type": "http",
      "url": "https://nova.civai.co/mcp/agents/mcp-slack_android"
    }
  }
}

Available tools 17

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

channel
channel_info
Channel name and member count for a channel id.
create_channel
Create a channel (may be restricted on some workspaces).
list_channel_members
List member user ids in a Slack channel.
post
post_message
Post a message to a Slack channel or DM using the mobile user session.
post_message_rich
Post using mobile Block Kit blocks (message_blocks_json).
channels
list_channels
List Slack channels and group DMs (mobile client.channels).
confirm
confirm_email_signin
Start Slack email sign-in.
conversation
conversation_history
Fetch recent messages in a channel.
message
delete_message
Delete one of your messages.
open
open_conversation
Open a DM conversation with a Slack user id.
people
search_people
Search people by name or email fragment.
reply
reply_thread
Post a reply in a thread.
session
session_status
Verify Slack mobile session (run before other tools).
thread
thread_replies
Read messages in a thread.
user
user_boot
Workspace client bootstrap after login.
workspace
list_workspace_users
List users in the workspace.
workspaces
list_workspaces
List workspaces after email confirmation.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

slack_android
removed 7 Nov 2026

Endpoints

URLTransportStateLatencyChecked
https://nova.civai.co/mcp/agents/mcp-slack_android streamable-http answering 540 ms 7 min ago

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Slack MCP by Nova (CIVAI) — questions

Answers built from our own checks of this server.

What can Slack MCP by Nova (CIVAI) do?
It exposes 17 tools, read directly from the server on our last check. Among them: channel_info, confirm_email_signin, conversation_history, create_channel, delete_message, list_channel_members and 11 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
What is Slack MCP by Nova (CIVAI) mostly used for?
Its tools cluster around channel and post. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Slack MCP by Nova (CIVAI) working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 90 of 92 checks got a reply (97.8%), average response time 553 ms. The bar chart above shows every period we have measured.
Did Slack MCP by Nova (CIVAI) ever remove tools?
Yes. slack_android is no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.
How do I connect Slack MCP by Nova (CIVAI)?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Slack MCP by Nova (CIVAI) need an API key?
No. Slack MCP by Nova (CIVAI) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 17 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Slack MCP by Nova (CIVAI)?
It answers our handshake in 553 ms on average, which is faster than 20% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.