How to integrate Apollo MCP with Antigravity

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How to integrate Apollo 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 Apollo account to Antigravity IDE via Composio Connect, so it can bulk enrich profiles for new leads, add contacts to outreach sequence now, create a new sales deal for Acme, and more without ever putting your account credentials at risk.

Also integrate Apollo 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 Apollo 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 Apollo account

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

For example, ask it to:

  • "Bulk enrich profiles for new leads"
  • "Add contacts to outreach sequence now"
  • "Create a new sales deal for Acme"

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

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

Supported Tools & Triggers

Tools
Add Contacts to SequenceAdds contacts to a specified Apollo email sequence and returns the contact details.
Bulk organization enrichmentEnriches data for up to 10 organizations simultaneously by providing a list of their base company domains (e.
Bulk people enrichmentUse to enrich multiple person profiles simultaneously with comprehensive data from Apollo's database.
Bulk update account stageBulk updates the stage for specified existing Apollo.
Create an Apollo accountCreates a new account in Apollo.
Bulk create Apollo accountsCreates multiple accounts in Apollo.
Bulk create Apollo contactsTool to bulk create multiple contacts in Apollo with a single API call.
Create call record in ApolloTool to log call records in Apollo from external systems.
Create Apollo contactCreates a new contact in Apollo.
Create custom fieldCreates a new custom field in Apollo.
Create Apollo dealCreates a new sales opportunity (deal) in Apollo.
Create Apollo TaskTool to create a single task in Apollo.
Get Account by IDTool to retrieve detailed information about a specific account by its Apollo ID.
Check Apollo API key statusTool to check whether the provided Apollo API key is valid and accepted by Apollo (health/auth check).
Get Apollo ContactRetrieves detailed information about a specific contact by its ID.
Get Apollo dealRetrieves information about a specific deal by its ID.
Get LabelsRetrieves all labels from Apollo.
Get opportunity stagesRetrieves all configured opportunity (deal) stages from the Apollo.
Get Organization by IDRetrieves complete information about a specific organization by its Apollo ID.
Get Organization Job PostingsRetrieves paginated job postings for a specified organization by its ID, optionally filtering by domain; ensure `organization_id` is a valid identifier.
Get typed custom fieldsRetrieves all typed custom field definitions available in the Apollo.
List Apollo account stagesRetrieves the IDs for all available account stages in your team's Apollo account.
List apollo contact stagesRetrieves all available contact stages from an Apollo account, including their unique IDs and names.
List Apollo dealsRetrieves a list of deals from Apollo, using Apollo's default sort order if 'sort_by_field' is omitted.
List email accountsRetrieves all email accounts and their details for the authenticated user; takes no parameters.
List FieldsRetrieves all field definitions from Apollo.
List Apollo UsersRetrieves a list of all users (teammates) associated with the Apollo account, supporting pagination via `page` and `per_page` parameters.
Enrich organization dataFetches comprehensive organization enrichment data from Apollo.
Search organizations in ApolloSearches Apollo's database for organizations using various filters; consumes credits on every call (unavailable on free plans) — avoid re-running identical queries and surface quota errors rather than retrying.
Enrich person with ApolloEnriches and retrieves information for a person from Apollo.
Apollo people searchSearches Apollo's contact database for people using various filters; results capped at 50,000 records and does not enrich contact data.
Search Apollo AccountsSearches for accounts within your existing Apollo.
Search for CallsSearches for call records in Apollo.
Search Apollo contactsSearches Apollo contacts using keywords, stage IDs (from 'List Contact Stages' action), or sorting (max 50,000 records; `sort_ascending` requires `sort_by_field`).
Search news articlesTool to search for news articles about companies in Apollo's database.
Search outreach emailsTool to search for outreach emails sent through Apollo sequences.
Search sequencesSearches for sequences (e.
Search tasksSearches for tasks in Apollo.
Update an Apollo accountUpdates specified attributes of an existing account in Apollo.
Update account ownershipUpdates the ownership of multiple Apollo accounts to a specified user.
Update Apollo call recordTool to update an existing call record in Apollo.
Update Apollo contact detailsTool to update an existing contact's information in Apollo.
Update contact ownershipUpdates the ownership of specified Apollo contacts to a given Apollo user, who must be part of the same team.
Bulk update Apollo contactsTool to bulk update multiple Apollo contacts with a single API call.
Update contact stageUpdates the stage for one or more existing contacts in Apollo.
Update contact status in sequenceUpdates a contact's status within a designated Apollo sequence, but cannot set the status to 'active'.
Update Apollo dealUpdates specified fields of an existing Apollo.
View API Usage StatsFetches Apollo API usage statistics and rate limits for the connected team.

Conclusion

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

How to build Apollo MCP Agent with another framework

FAQ

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

With a standalone Apollo MCP server, the agents and LLMs can only access a fixed set of Apollo tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Apollo 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 Apollo tools.

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

Yes, absolutely. You can configure which Apollo 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 Apollo data and credentials are handled as safely as possible.

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