Connect Slack to Claude
To use Slack in Claude, connect your Slack account in Manyplug and add Manyplug to Claude once. Claude then gets 5 Slack tools, for example: “Search messages”, “List channels”, and “Read a channel”. It takes about 4 minutes and works on the free plan.
Connect Slack Free plan, no card
1. Connect Slack in Manyplug
Click “Connect Slack” and paste the key or app password into Manyplug’s form:
2. Add Manyplug to Claude
claude.ai, Claude Desktop and mobile. The free plan allows one custom connector, and Manyplug is one connector for all your services.
- Open Customize → Connectors (in older versions: Settings → Connectors).
- Click “+ Add” → “Add custom connector”, name it Manyplug, paste the URL and click Continue.
- Keep the suggested sign-in settings and click Add, then Connect: Manyplug opens — sign in and allow access.
- In a chat, click “+” → Connectors, turn Manyplug on and ask: “Connect my email”.
3. Ask Claude
- What did people ask me in Slack today?
- Summarise #product since Monday.
- Post “Deploy is done” in #releases.
- Find the message where Alex shared the Q4 plan.
What Claude can do in Slack
Each action can be turned off per account, and changes can wait for your OK.
| Action | Access |
|---|---|
| Search messages Searches messages in all channels and DMs. Understands Slack filters: from:@user, in:#channel, after:2026-11-01, has:link. | Reads |
| List channels Channels and direct messages you are in. | Reads |
| Read a channel Latest messages of a channel or DM, newest first, or a whole thread. | Reads |
| Send a message Posts to a channel or DM as you, optionally as a thread reply. Slack formatting works. | Risky |
| Find people Finds people in the workspace by name, username or email. | Reads |
Questions
Can I connect two Slack accounts to Claude?
Yes. Connect each one in Manyplug under its own name, for example Work and Personal. Claude can use one of them or all at once.
Will Claude change anything in Slack without asking?
By default these actions wait for your approval before they run: “Send a message”. Other changes follow your rules, which you can make stricter per account.
Do I need an official Slack MCP server for this?
No. Manyplug connects to Slack itself with a key or app password you paste into its form, and gives Claude the tools through one MCP address, together with your other services.
Is it free to connect Claude to Manyplug?
Yes. New workspaces get 14 days of Pro free, then the free plan keeps going with 150 actions a month and up to 3 connected accounts. No card needed. Paid plans start at $5 a month.
Does Claude see my passwords or API keys?
No. Keys are entered on Manyplug’s own pages, stored encrypted with a separate key per account, and the AI only receives tool results.
Slack in other AI apps
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