How to integrate Doppler MCP with Antigravity

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How to integrate Doppler 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 Doppler account to Antigravity IDE via Composio Connect, so it can get secrets for staging environment in Doppler, add a new secret to marketing project, list all projects and their environments, and more without ever putting your account credentials at risk.

Also integrate Doppler 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 Doppler 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 Doppler account

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

For example, ask it to:

  • "Get secrets for staging environment in Doppler"
  • "Add a new secret to marketing project"
  • "List all projects and their environments"

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

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

Supported Tools & Triggers

Tools
Get Authenticated User InfoTool to retrieve information about the authenticated user or token.
Get Config LogTool to retrieve a specific config log from Doppler.
List Config LogsTool to retrieve configuration change logs for a specific config in a project.
Get ConfigTool to retrieve a specific Doppler config by project and config name.
List Doppler ConfigsTool to list configurations from a Doppler project.
Create Encrypted Share LinkTool to generate a Doppler Share link by sending an encrypted secret.
Create Plain Text Share LinkTool to generate a Doppler Share link by sending a plain text secret.
List EnvironmentsTool to list all environments in a Doppler project.
List IntegrationsTool to retrieve all existing integrations in Doppler.
List Change RequestsTool to list existing change requests in the Doppler workplace.
Get Project RoleTool to retrieve details of a specific project role in Doppler.
List Project RolesTool to list all available project roles in Doppler.
List Project Role PermissionsTool to list all available permissions for project roles in Doppler.
Get Project DetailsTool to retrieve details of a specific Doppler project by its identifier.
List Doppler ProjectsTool to list all Doppler projects in your workspace.
Delete SecretTool to delete a secret from a Doppler config.
Download SecretsTool to download secrets from a Doppler config in various formats.
Get SecretTool to retrieve a specific secret from a Doppler project config.
List Doppler SecretsTool to list all secrets for a specific Doppler config within a project.
List Secret NamesTool to retrieve the list of secret names from a specific Doppler config.
Update Doppler SecretsTool to update secrets in a Doppler config.
Update Secret NoteTool to update a note for a secret in Doppler.
Get Workplace InformationTool to retrieve workplace information from Doppler.
Get Workplace RoleTool to retrieve workplace role information from Doppler.
List Workplace RolesTool to list all workplace roles in your Doppler workspace.
List Workplace PermissionsTool to retrieve all available workplace permissions in Doppler.

Conclusion

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

How to build Doppler MCP Agent with another framework

FAQ

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

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

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

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

Used by agents from

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

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