Google Antigravity

Antigravity Social Media MCP Config

Google Antigravity connects to a social media MCP server by adding one JSON config with your API key in the headers, then restarting the app. The field name matters: Antigravity requires serverUrl for a remote server and does not support url or httpUrl, so a config copied from another client will not register. Antigravity shares its MCP configuration across the IDE, the CLI, and the SDK, so the server you add once is available to all three rather than needing a separate setup per surface.

Endpoint https://mcp.blotato.com/mcp API key header

Connect Google Antigravity See pricing

Updated August 2026

How to connect Google Antigravity to social media

Connect your social accounts in Blotato and copy your API key from Settings then API.
Open ~/.gemini/config/mcp_config.json for a global server, or .agents/mcp_config.json inside a workspace to scope it to that project.
Add the block below, using serverUrl rather than url, and paste your API key into the header.
Restart Antigravity so the server loads.

MCP JSON in ~/.gemini/config/mcp_config.json, shared across the IDE, CLI, and SDK

{
  "mcpServers": {
    "blotato": {
      "serverUrl": "https://mcp.blotato.com/mcp",
      "headers": {
        "blotato-api-key": "YOUR_API_KEY"
      }
    }
  }
}

How do I know it worked?

Ask Google Antigravity to list your connected accounts. It calls blotato_list_accounts and returns your platforms, which confirms both the connection and the authentication in one step. If you see your accounts, setup is done.

First prompt to run

What social media accounts do I have connected?

An AI agent answering "what social accounts do i have connected?" by calling Blotato and listing 10 connected social media accounts across Twitter, Bluesky, Instagram, Threads, LinkedIn, Facebook, YouTube, Pinterest, and TikTok — The reply you are looking for: the agent calls Blotato and lists every connected account. Here it returns 10 accounts across all nine platforms.

Worth knowing before you rely on it: analytics prompts only return data for X, Instagram, Facebook, Threads, and Bluesky. The other four platforms publish normally but report no metrics yet.

What to ask Google Antigravity once it is connected

Announce this feature on all nine platforms, adjusting the copy for each.: Antigravity drafts nine variants and makes nine blotato_create_post calls. Because the MCP config is shared, the same request works from the IDE, the CLI, or the SDK without configuring anything twice.
Put the demo video on YouTube as unlisted first.: blotato_create_post with privacyStatus set to unlisted, plus a title. Flipping it public later is a normal YouTube action, not something the publish call has to predict.
Pin this to the right Pinterest board.: blotato_list_pinterest_boards first, because a Pinterest post needs a boardId and there is no default. The agent reads the boards and picks, so you never look the ID up yourself.

What breaks, and how to fix it

The failure that catches most people here is the field name. Antigravity requires serverUrl for a remote server and its documentation states plainly that legacy fields like url and httpUrl are not supported, so a config copied from Cursor or from a generic MCP snippet registers nothing and fails quietly rather than throwing an auth error. The other common one is a plain JSON error: a missing comma between sections, or single quotes swapped in for double quotes. Single quotes are a shell and .env convention and are not valid JSON. Check the field name first, then validate the block, before assuming the key is wrong.

What is different about Google Antigravity

Antigravity is the only agent here whose MCP config is shared across three surfaces at once, so adding the server in the IDE also gives the CLI and the SDK the same publishing tools without a second config.

Vendor documentation: Google Antigravity MCP setup. For how a client discovers and calls tools once connected, see the MCP client concepts reference.

Already connected and want the workflow?

This page covers the connection. Our guide to the full Antigravity setup walkthrough covers the config in detail, an example campaign workflow, and common issues.

FAQ

Google Antigravity social media FAQs

01 Can Google Antigravity post to social media?

Yes. Google Antigravity cannot reach a social account on its own, because it has no platform credentials. Connecting it to Blotato's hosted MCP server at https://mcp.blotato.com/mcp gives it tools to publish and schedule across nine platforms: X, LinkedIn, Facebook, Instagram, TikTok, YouTube, Threads, Bluesky, and Pinterest. Google Antigravity authenticates with api key header.

02 How do I connect Google Antigravity to social media?

03 How do I set up Google Antigravity for social media?

Setting up Google Antigravity for social media takes one connection. Connect your social accounts in Blotato, then give Google Antigravity the hosted MCP endpoint https://mcp.blotato.com/mcp and authenticate with api key header. For Google Antigravity specifically that means: mcp json in ~/.gemini/config/mcp_config.json, shared across the ide, cli, and sdk. Once it loads, Google Antigravity can publish and schedule to X, LinkedIn, Facebook, Instagram, TikTok, YouTube, Threads, Bluesky, and Pinterest from a plain-language prompt.

04 What is the best way to manage social media with Google Antigravity?

Let Google Antigravity do the drafting and decision making, and let a publishing layer hold the accounts and the schedule. The thing that makes this work on Google Antigravity in particular: Antigravity is the only agent here whose MCP config is shared across three surfaces at once, so adding the server in the IDE also gives the CLI and the SDK the same publishing tools without a second config.

05 What goes wrong when connecting Google Antigravity?

06 Does Google Antigravity need to be running for a scheduled post to go out?

No. Scheduling runs on Blotato rather than inside Google Antigravity. Once the agent queues a post, it publishes at the scheduled time whether or not Google Antigravity, your terminal, or your laptop is on. This is the practical difference between an agent that drafts and a system that runs unattended.

07 What can I ask Google Antigravity to do once it is connected?

"Announce this feature on all nine platforms, adjusting the copy for each." Antigravity drafts nine variants and makes nine blotato_create_post calls. Because the MCP config is shared, the same request works from the IDE, the CLI, or the SDK without configuring anything twice. "Put the demo video on YouTube as unlisted first." blotato_create_post with privacyStatus set to unlisted, plus a title. Flipping it public later is a normal YouTube action, not something the publish call has to predict. "Pin this to the right Pinterest board." blotato_list_pinterest_boards first, because a Pinterest post needs a boardId and there is no default. The agent reads the boards and picks, so you never look the ID up yourself.

08 How much does it cost to connect Google Antigravity?

Starter is $29/mo flat for 20 connected accounts, and the price does not scale with posting volume. API and MCP access is not part of the 7-day trial: generating a key activates the paid Starter plan, so plan on subscribing rather than trialing it.

Connecting a different agent?

Same endpoint, same accounts, one setup per client. The AI agents for social media hub covers what all of them share, including every tool your agent can call.