How to integrate Replicate MCP with Antigravity

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How to integrate Replicate 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 Replicate account to Antigravity IDE via Composio Connect, so it can run Stable Diffusion to generate an image, list all your uploaded files on Replicate, get README documentation for a model, and more without ever putting your account credentials at risk.

Also integrate Replicate 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 Replicate 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 Replicate account

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

For example, ask it to:

  • "Run Stable Diffusion to generate an image"
  • "List all your uploaded files on Replicate"
  • "Get README documentation for a model"

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

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

Supported Tools & Triggers

Tools
Get Account InformationTool to get authenticated account information.
Cancel PredictionTool to cancel a prediction that is still running.
Get model collectionTool to get a specific collection of models by its slug.
List model collectionsTool to list all collections of models.
Create ModelTool to create a new Replicate model with specified owner, name, visibility, and hardware.
Create PredictionTool to create a prediction for a Replicate Deployment.
Create DeploymentTool to create a new deployment with specified model, version, hardware, and scaling parameters.
Delete DeploymentTool to delete a deployment from your account.
Get Deployment DetailsTool to get deployment details by owner and name.
List deploymentsTool to list all deployments associated with the account.
Create FileTool to create or upload a file to Replicate.
Delete FileTool to delete a file by its ID.
Get File DetailsTool to get details of a file by its ID.
List FilesTool to retrieve a paginated list of uploaded files.
Get PredictionTool to get the status and output of a prediction by its ID.
List Available HardwareTool to list available hardware SKUs for models and deployments.
List model examplesTool to list example predictions for a specific model.
Get Model DetailsTool to get details of a specific model by owner and name.
List Public ModelsTool to list public models with pagination and sorting.
Create Model PredictionTool to create a prediction using an official Replicate model.
Get Model READMETool to get the README content for a model in Markdown format.
Get Model VersionTool to get a specific version of a model.
List Model VersionsTool to list all versions of a specific model.
Create PredictionTool to create a prediction to run a model by version ID.
List All PredictionsTool to list all predictions for the authenticated user or organization with pagination.
Search Models and CollectionsTool to search for models, collections, and docs using text queries (beta).
Cancel TrainingTool to cancel an ongoing training operation in Replicate.
Create Training JobTool to create a training job for a specific model version.
List Training JobsTool to list all training jobs for the authenticated user or organization with pagination.
Update Model MetadataTool to update metadata for a model including description, URLs, and README.
Get Webhook Signing SecretTool to get the signing secret for the default webhook.

Conclusion

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

How to build Replicate MCP Agent with another framework

FAQ

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

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

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

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

Used by agents from

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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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