GTmetrix MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with GTmetrix MCP or direct API to run performance tests, retrieve detailed reports, monitor website speed, and analyze optimization recommendations through natural language.

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GTmetrix is a web performance analysis tool that tests and reports on site speed. It helps developers and teams identify bottlenecks and optimize web applications for a better user experience.

20 Tools

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TOOLS

Supported Tools

Every GTmetrix action and event your agent gets out of the box.

Delete Page

Tool to delete a specific page in GTmetrix.

Delete Report

Tool to delete a GTmetrix report.

Get Browser Details

Tool to retrieve browser details from GTmetrix.

Get Browsers

Tool to retrieve the list of available browsers for GTmetrix performance tests.

Get Location Details

Tool to retrieve location details from GTmetrix.

Get Locations

Tool to retrieve the list of available GTmetrix test locations.

Get Page Details

Tool to retrieve page details from the user's GTmetrix account.

Get Page Latest Report

Tool to retrieve the most recent test report for a monitored page in GTmetrix.

Get Page Reports

Tool to retrieve the report list associated with a monitored page in GTmetrix.

Get Pages

Tool to retrieve the page list from your GTmetrix account.

Get Report

Tool to retrieve a GTmetrix test report by its identifier.

Get Report Resource

Tool to get a report resource such as screenshot, HAR file, video, PDF, or Lighthouse JSON.

Get Simulated Device

Tool to retrieve simulated device details.

Get Simulated Devices

Tool to retrieve the list of simulated devices available in GTmetrix.

Get API Account Status

Tool to retrieve the current API account state and remaining credits.

Get Test Details

Tool to retrieve test details for a specific GTMetrix test.

Get Tests

Tool to retrieve the test list from your GTmetrix account with pagination and filtering support.

Retest Page

Tool to initiate a retest of a GTmetrix page with same parameters.

Retest Report

Tool to initiate a retest of a completed GTmetrix report with same parameters.

Start Test

Tool to start a new GTmetrix test for a specified URL.

SETUP GUIDE

Connect GTmetrix MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["gtmetrix"],
  mcp: true,
});
Create a session scoped to GTmetrix and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Run a performance test on https://example.com",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a GTmetrix request
SETUP GUIDE

Connect GTmetrix API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["gtmetrix"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to GTmetrix
3

Run GTmetrix tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Run a performance test on https://example.com" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the GTmetrix tool calls through the session, and print the final answer

Why Use Composio?

AI Native GTmetrix Integration

  • Supports both GTmetrix MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your GTmetrix data

Managed Auth

  • Built-in API key handling with secure storage
  • Central place to manage, scope, and revoke GTmetrix access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access GTmetrix
  • Scoped, least privilege access to GTmetrix resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

Yes, GTmetrix requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your GTmetrix connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your GTmetrix account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the GTmetrix actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside GTmetrix at any time.

When you connect a GTmetrix account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in GTmetrix as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside GTmetrix. If GTmetrix lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside GTmetrix at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each GTmetrix connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment GTmetrix rejects the old key. Create a new key in GTmetrix and reconnect the account from the Composio dashboard or by asking your agent to reconnect GTmetrix. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal GTmetrix use. Paid plans add higher limits and team features. Your GTmetrix plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple GTmetrix accounts).

With Composio, you connect GTmetrix once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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