Connect Slack to Gemini CLI

To use Slack in Gemini CLI, connect your Slack account in Manyplug and add Manyplug to Gemini CLI once. Gemini CLI then gets 5 Slack tools, for example: “Search messages”, “List channels”, and “Read a channel”. It takes about 3 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 Gemini CLI

Gemini CLI.

Run the command.

gemini mcp add --transport http manyplug https://manyplug.com/mcp

In Gemini CLI type /mcp auth manyplug and sign in.

Full guide: Gemini CLI

3. Ask Gemini CLI

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 Gemini CLI 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 Gemini CLI?

Yes. Connect each one in Manyplug under its own name, for example Work and Personal. Gemini CLI can use one of them or all at once.

Will Gemini CLI 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 Gemini CLI the tools through one MCP address, together with your other services.

Is it free to connect Gemini CLI 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 Gemini CLI 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

Claude ChatGPT Claude Code Cursor VS Code Codex Windsurf

More services for Gemini CLI

AirtableBases and tables: find and write records.AsanaTasks and projects: list, add, complete.BitbucketPull requests, reviews and pipelines.BrevoContacts, lists, campaigns, emails.Cal.comBookings and event types.CalendlyBooked meetings and booking links.ClickUpYour tasks, lists and statuses.CloudflareDNS records and cache purges.ConfluenceSearch and read pages, write new ones.Email (IMAP/SMTP)Any IMAP/SMTP mailbox: iCloud, Fastmail or your company mail.FigmaFiles, frames, exports, comments.FreshdeskTickets, customer replies, notes.GitHubRepositories, issues and pull requests.GitLabIssues and merge requests.GmailSearch, read, draft and send email.Google CalendarEvents, free time, invitations.Google DriveFind files and read documents.Google SheetsRead and write cells, append rows.HTTP APIAny REST/JSON API by its address and key, no code.HubSpotContacts, companies and deals.IntercomCustomer conversations and contacts.JiraIssues by JQL, create, change status, comment.LinearTeam issues: find, create, change status.MailchimpSubscribers, tags, campaign reports.monday.comBoards, items, statuses and updates.NotionPages and databases: search, read, write.PipedriveDeals, people and organizations.SentryErrors, stack traces, resolving issues.StripePayments, customers, invoices and refunds.TelegramYour bot, and with Telegram Business your own chats: message search, replies.TodoistTasks and projects: list, add, complete.TrelloBoards, lists and cards.TypeformForms and their responses.VercelDeployments, build logs, domains.WebflowCMS: drafts, edits, publishing.WhatsAppA WhatsApp Business number through the official API: chats, search, replies.WordPressPosts, drafts, publishing, comments.ZendeskTickets, customer replies, notes.