How to integrate Webex MCP with Antigravity

Trusted by
AWS
Glean
Zoom
Airtable

30 min · no commitment · see it on your stack

Webex logo
Antigravity logo
divider

How to integrate Webex MCP with Antigravity

Antigravity IDE is Google's agentic IDE, built on a VS Code-style editor and powered by models like Gemini 3.5 Flash, Gemini 3.1 Pro, Opus 4.6, and more. It treats the AI agent as a first-class teammate, planning, coding, and validating work through an Agent Manager dashboard with deep browser connectivity.

In this guide, I will explain the easiest and most secure way to connect your Webex account to Antigravity IDE via Composio Connect, so it can create a new project discussion room, list all teams I am part of, send a meeting summary to your team, and more without ever putting your account credentials at risk.

Also integrate Webex with

Why use Composio?

Composio provides:

  • Access to 1,000+ managed apps from a single MCP endpoint. This makes it convenient for agents to run cross-app workflows.
  • Programmatic tool calling. Allows LLMs to write code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Large tool response handling outside the LLM context. This minimizes context bloat from large tool responses.
  • Dynamic just-in-time access to thousands of tools across hundreds of apps. Composio loads the tools your agent needs, so LLMs are not overwhelmed by tools they do not need.

Connect Webex to Antigravity

Antigravity does not ship with one-click custom MCP install links yet, so configuration goes through the IDE's raw config file. The process takes under a minute.

1. Open the MCP Config

Go to Antigravity Settings, open the Customizations tab, then click Open MCP Config to open mcp_config.json in the editor.

Antigravity Customizations settings with Open MCP Config button

2. Get your API key

Go to the Composio Dashboard and copy your API key.

Composio Dashboard showing where to get the API key

3. Add Composio to mcp_config.json

Paste the following configuration into the file:

bash
{
  "mcpServers": {
    "remote-composio": {
      "serverUrl": "https://connect.composio.dev/mcp",
      "headers": {
        "x-consumer-api-key": "your-composio-api-key"
      }
    }
  }
}

Note: Antigravity uses serverUrl, not url, for remote HTTP-based MCP servers. This differs from the url key used in Cursor and VS Code configs.

Save the file and click refresh in the Installed MCP Servers section.

Antigravity showing Composio tools after MCP setup

Connect your Webex account

Back in the Antigravity agent panel, ask the agent to connect to Webex or give it any Webex-related task.

For example, ask it to:

  • "Create a new project discussion room"
  • "List all teams I am part of"
  • "Send a meeting summary to your team"

It will prompt you to authenticate and authorize access to Webex.

That is it. Composio tools are now available in Antigravity, and your Webex account is ready to use.

Supported Tools & Triggers

Tools
Create TeamCreates a new Webex team and automatically adds the authenticated user as a member.
Get Team DetailsTool to retrieve details for a specific team by teamId.
List TeamsLists all teams the authenticated user belongs to.
List WebhooksLists all webhooks registered for the authenticated user or organization.
Create MessageTool to post a message to a Webex room or person.
Create RoomCreates a new Webex room for team collaboration.
Create Team MembershipTool to add a person to a Webex team by personId or personEmail.
Delete MembershipTool to delete a Webex membership by its unique identifier.
Delete MessageTool to delete a Webex message by its unique identifier.
Delete RoomDeletes a Webex room by its ID.
Get Membership DetailsTool to retrieve details for a specific membership.
Get Message DetailsTool to retrieve details for a specific message.
Get Team Membership DetailsTool to retrieve details for a specific team membership.
List MembershipsList memberships in Webex rooms.
List MessagesTool to list messages in a room.
List RoomsTool to list rooms the authenticated user belongs to.
List Team MembershipsTool to list all memberships for a specific team.
Get Person DetailsRetrieves detailed profile information for a specific person by their ID.
List PeopleTool to list people in your organization.
Get Room DetailsTool to retrieve details for a specific room.
Update MembershipUpdates a Webex room membership by ID to change moderator or monitor status.
Update RoomUpdate a room's title, lock status, or team association.
Update TeamTool to update a team's name by teamId.
Create WebhookCreates a Webex webhook to receive real-time event notifications via HTTP POST requests to your specified URL.
Delete WebhookTool to delete a specific webhook.
Get Webhook DetailsRetrieves detailed information about a specific Webex webhook by its ID.

Conclusion

You have successfully connected Webex to Antigravity using Composio Connect. Your agent can now use Webex securely without exposing credentials in prompts or local scripts.

How to build Webex MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Webex MCP?

With a standalone Webex MCP server, the agents and LLMs can only access a fixed set of Webex tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Webex and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Antigravity?

Yes, you can. Antigravity fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Webex tools.

Can I manage the permissions and scopes for Webex while using Tool Router?

Yes, absolutely. You can configure which Webex scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Webex data and credentials are handled as safely as possible.

Used by agents from

Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.