Does Gemini support MCP?

Yes, in Gemini CLI and Antigravity. The Gemini app on the web and phone can't add MCP servers. Add OmniSocials to either agent and it gets 56 tools for posts, the inbox and analytics.

Can Gemini post to social media?

Yes, from Gemini CLI or Antigravity with the OmniSocials MCP server. Gemini then creates, schedules and publishes posts on 12 platforms through each platform's official API.

How do I add an MCP server to Gemini CLI?

Run gemini mcp add --transport http --scope user omnisocials https://mcp.omnisocials.com, then /mcp auth omnisocials in a session to sign in. Or add "httpUrl": "https://mcp.omnisocials.com" under mcpServers in ~/.gemini/settings.json.

Is Gemini CLI deprecated? What is Antigravity CLI?

Google moved consumer accounts to Antigravity CLI (agy) in June 2026. Gemini CLI is still open source and still works with MCP servers. Both can use OmniSocials.

How do I add an MCP server to Antigravity?

Add OmniSocials under mcpServers in ~/.gemini/config/mcp_config.json (or .agents/mcp_config.json in a project) with "serverUrl": "https://mcp.omnisocials.com?API_KEY=your_key". Create the key in OmniSocials under Settings, API Keys.

Gemini CLI signs in with OAuth through /mcp auth. Use an API key for Antigravity, for machines without a browser, and for scripts. A key reaches one workspace.

Will Gemini publish without asking?

Gemini CLI asks before each MCP tool unless you allow it (Allow once, for the session, or all of the server's tools). OmniSocials publishes only when you ask it to post now, and approval workflows add a sign-off.

How do I connect Gemini to Instagram or LinkedIn?

Connect the account in OmniSocials first, then add OmniSocials to Gemini. Gemini can then post Reels, carousels and Stories to Instagram, answer its comments and DMs, and read its analytics. LinkedIn works the same for profiles and company pages.

What can Gemini see in my account?

When you sign in, you choose all workspaces or only the ones you pick, and an API key reaches one workspace. Posting and the inbox follow your role in each workspace. You can disconnect at any time in Settings, then Organisation, then Integrations.

Can Gemini answer DMs and comments?

Yes, on the 7 platforms in the OmniSocials inbox: Instagram, Facebook, LinkedIn pages, TikTok, YouTube, X and Threads. It replies to existing conversations; Instagram and Facebook DMs within Meta's 24-hour window. A workspace can send up to 1,000 replies a day.

Can I post images and videos from Gemini?

Yes. Give Gemini a link to the image or video, up to 1 GB, and it uploads it to your OmniSocials library before it posts. Files already in your library work too: ask Gemini to use them by name.

How much does it cost?

OmniSocials costs $10 per month per seat, billed yearly, with a 14-day free trial. The MCP server and all 56 tools come with every plan. Your Gemini plan is separate.

Gemini and Antigravity MCP for Social Media

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Gemini CLI and Antigravity integration

Add the OmniSocials MCP server to Gemini CLI or Antigravity. Then Gemini schedules posts, answers DMs and reads analytics from your terminal.

Start Free Trial How to connect

app.omnisocials.com/calendar

OmniSocials

Home

Create Post

Calendar

Posts

Analytics

Social Inbox

Automations

Approvals

Library

Latest updateComment to DM for Instagram is live

GUIDEHere's the guide

1/2

Mira

Today

Week 43, 2026

WeekMonth

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Posted

09:00

Best times to post, worked out from your...

Posted

14:30

Every DM, comment and mention in one inb...

Posted

10:00

Posted

16:00

Polls are live on X, Threads and Mastodo...

Posted

09:30

The Social Inbox has an API now. Comment...

In approval

15:00

New: LinkedIn in the Social Inbox. Answe...

Scheduled

11:00

Building on OmniSocials? Start with the ...

Scheduled

09:00

Scheduled

13:00

New: Alt text on every image. Describe y...

Scheduled

11:00

New: 1GB video uploads. Longer, sharper ...

Scheduled

10:00

What should we build next? Tell us below...

Gemini CLI~/launch

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Tips: /help for more information, /mcp for your servers
>Type your message or @path/to/file
~/launch · gemini-3.5-pro

Gemini CLI~/launch

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Tips: /help for more information, /mcp for your servers
>Type your message or @path/to/file
~/launch · gemini-3.5-pro

Supported platforms

What it does

Yes, Gemini can post to social media, from Gemini CLI or Antigravity. It turns your changelog into posts and schedules them on 12 platforms.

Post everywhere at once.
One message schedules a post on every platform you name, each in its own format.
- list_accounts
- create_post
Plan the week.
Drafts at your best times, for you to check before anything is scheduled.
- get_best_times
- create_post
Answer what you missed.
Comments, DMs and mentions from 7 platforms, with the post they belong to.
- get_next_unanswered
- reply_to_inbox
Know what worked.
Your numbers per platform, and the day and hour to post next.
- get_analytics_overview
- get_best_times
Send it for approval.
The agent writes, a teammate or client signs off, then it goes out on time.
- list_approval_workflows
- create_post

Setup

Connect Gemini in two minutes. One command in Gemini CLI, or one entry in Antigravity's config.

1
Both flags matter: the default transport is stdio and the default scope is the project.
```
gemini mcp add --transport http --scope user omnisocials https://mcp.omnisocials.com
```
2
In a Gemini CLI session, run this, pick your workspaces and click Allow access. gemini mcp list then shows omnisocials as Connected.
```
/mcp auth omnisocials
```
3
Create an API key in OmniSocials and add the server to ~/.gemini/config/mcp_config.json with the key in the URL.
~/.gemini/config/mcp_config.json
```
{
  "mcpServers": {
    "omnisocials": {
      "serverUrl": "https://mcp.omnisocials.com?API_KEY=omsk_live_your_key"
    }
  }
}
```
Get an API key

No browser, as over SSH? Add the server with a key header: gemini mcp add --transport http -s user -H "Authorization: Bearer omsk_live_…" omnisocials https://mcp.omnisocials.comMCP server docs

Control

Let Gemini draft, and sign off before anything goes live

Approval Workflows
Team Review
Client Review

Workspaces You Pick
Role Permissions
Disconnect Anytime

Platforms

Connect Gemini to Instagram, LinkedIn, TikTok and 9 more. What Gemini can do on each platform, through each platform's official API.

What Gemini can do on each platform through OmniSocials
Platform	Publish	Inbox	Analytics
Instagram	PublishPosts, carousels, Stories, Reels	InboxDMs, comments, mentions, comment-to-DM	AnalyticsViews, reach, saves, watch time
Facebook	PublishPosts, Stories, Reels	InboxMessenger, comments, mentions	AnalyticsViews, reactions, clicks
LinkedIn	PublishPosts, PDF carousels, profile and Page	InboxPage comments and mentions	AnalyticsImpressions, reactions, clicks
X	PublishPosts and threads	InboxDMs (opt-in)	AnalyticsViews, reposts, bookmarks
TikTok	PublishVideos and photo posts	InboxComments	AnalyticsViews, watch time, shares
YouTube	PublishVideos and Shorts	InboxComments	AnalyticsViews, watch time, subscribers
Threads	PublishPosts	InboxReplies and mentions	AnalyticsViews, replies, reposts
Pinterest	PublishPins, with product tags	InboxNot available	AnalyticsImpressions, saves, outbound clicks
Bluesky	PublishPosts	InboxNot available	AnalyticsLikes, reposts, quotes
Mastodon	PublishPosts	InboxNot available	AnalyticsLikes, boosts, poll votes
Google Business	PublishUpdates, events and offers	InboxNot available	AnalyticsNot available
Telegram	PublishPosts, albums, polls, link buttons	InboxNot available	AnalyticsReactions, subscribers