How to integrate Blazemeter MCP with Claude Agent SDK

This guide walks you through connecting Blazemeter to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Blazemeter agent that can start a new performance test on your main project, fetch results from the latest test run, list all test runs for project alpha through natural language commands. This guide will help you understand how to give your Claude Agent SDK agent real control over a Blazemeter account through Composio's Blazemeter MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Blazemeter is a continuous testing platform for web and mobile app performance. It empowers teams to automate and analyze large-scale tests with ease.

92 Tools

Introduction

This guide walks you through connecting Blazemeter to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Blazemeter agent that can start a new performance test on your main project, fetch results from the latest test run, list all test runs for project alpha through natural language commands.

This guide will help you understand how to give your Claude Agent SDK agent real control over a Blazemeter account through Composio's Blazemeter MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Blazemeter with

OpenAI Agents SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Get and set up your Claude/Anthropic and Composio API keys
  • Install the necessary dependencies
  • Initialize Composio and create a Tool Router session for Blazemeter
  • Configure an AI agent that can use Blazemeter as a tool
  • Run a live chat session where you can ask the agent to perform Blazemeter operations

What is Claude Agent SDK?

The Claude Agent SDK is Anthropic's official framework for building AI agents powered by Claude. It provides a streamlined interface for creating agents with MCP tool support and conversation management.

Key features include:

  • Native MCP Support: Built-in support for Model Context Protocol servers
  • Permission Modes: Control tool execution permissions
  • Streaming Responses: Real-time response streaming for interactive applications
  • Context Manager: Clean async context management for sessions

What is the Blazemeter MCP server, and what's possible with it?

The Blazemeter MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Blazemeter account. It provides structured and secure access so your agent can perform Blazemeter operations on your behalf.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Composio API Key and Claude/Anthropic API Key
  • Primary know-how of Claude Agents SDK
  • A Blazemeter account
  • Some knowledge of Python
2

Getting API Keys for Claude/Anthropic and Composio

Claude/Anthropic API Key
  • Go to the Anthropic Console and create an API key. You'll need credits to use the models.
  • Keep the API key safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Navigate to your API settings and generate a new API key.
  • Store this key securely as you'll need it for authentication.
3

Install dependencies

npm install @anthropic-ai/claude-agent-sdk @composio/core dotenv

Install the Composio SDK and the Claude Agents SDK.

What's happening:

  • @composio/core provides Composio integration for Anthropic
  • @anthropic-ai/claude-agent-sdk is the core agent framework
  • dotenv/config loads environment variables
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
ANTHROPIC_API_KEY=your_anthropic_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates with Composio
  • USER_ID identifies the user for session management
  • ANTHROPIC_API_KEY authenticates with Anthropic/Claude
5

Import dependencies

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

dotenv.config();
What's happening:
  • We're importing all necessary libraries including the Claude Agent SDK and Composio
  • The dotenv.config() function loads environment variables from your .env file
  • This setup prepares the foundation for connecting Claude with Blazemeter functionality
6

Create a Composio instance and Tool Router session

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });

  // Create Tool Router session for Blazemeter
  const session = await composio.create(USER_ID, {
    toolkits: ['blazemeter'],
  });
  const mcpUrl = session?.mcp.url;
What's happening:
  • The function checks for the required COMPOSIO_API_KEY environment variable
  • We're creating a Composio instance using our API key
  • The create method creates a Tool Router session for Blazemeter
  • The returned url is the MCP server URL that your agent will use
7

Configure Claude Agent with MCP

const options: Options = {
  permissionMode: 'bypassPermissions',
  mcpServers: {
    composio: {
      type: 'http',
      url: mcpUrl,
      headers: { 'x-api-key': COMPOSIO_API_KEY }
    }
  },
  systemPrompt: 'You are a helpful assistant with access to Blazemeter tools via Composio.',
  maxTurns: 10,
};
What's happening:
  • We're configuring the Claude Agent options with the MCP server URL
  • permissionMode: 'bypassPermissions' allows the agent to execute operations without asking for permission each time
  • The system prompt instructs the agent that it has access to Blazemeter
  • maxTurns: 10 limits the conversation length to prevent excessive API usage
8

Create client and start chat loop

const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}
What's happening:
  • The readline interface is created to handle user input and output
  • The query function is used to send the user's input to the agent
  • The chat loop continues until the user types 'exit' or 'quit'
9

Run the application

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
What's happening:
  • The chat function is the entry point for the application
  • The try-catch block is used to handle any errors that occur

Complete Code

Here's the complete code to get you started with Blazemeter and Claude Agent SDK:

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });
  const session = await composio.create(USER_ID, {
    toolkits: ['blazemeter']
  });
  const mcp_url = session?.mcp.url;

  const options: Options = {
    permissionMode: 'bypassPermissions',
    mcpServers: {
      composio: {
        type: 'http',
        url: mcp_url,
        headers: { 'x-api-key': COMPOSIO_API_KEY }
      }
    },
    systemPrompt: 'You are a helpful assistant with access to Blazemeter tools via Composio.',
    maxTurns: 10,
  };

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}

Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Blazemeter through Composio's Tool Router.

Key features:

  • Native MCP support through Claude's agent framework
  • Streaming responses for real-time interaction
  • Permission bypass for smooth automated workflows
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.
TOOLS

Supported Tools

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

Convert Transactions

Tool to convert transaction files to BlazeMeter DSL format for service virtualization.

Create API Monitoring Schedule

Tool to create a new schedule for running API monitoring tests.

Create Multi Test

Tool to create a new multi-test within a specified project.

Create Private Location

Tool to create a new private location in BlazeMeter.

Create Private Location Agent

Creates a new agent (server) within a BlazeMeter private location.

Create Project

Creates a new project within a BlazeMeter workspace.

Create Search

Execute a search query against BlazeMeter entities using advanced filtering and sorting.

Create Tag

Creates a new tag in BlazeMeter for organizing and categorizing resources.

Create Test

Tool to create a new single test within a specified project.

Create Workspace Asset

Tool to create an asset in a workspace for test data management.

Create Asset Dependency

Tool to create a dependency relationship between two assets in a BlazeMeter workspace.

Create Workspace Package

Creates a new package within a BlazeMeter workspace.

Create Workspace Transactions

Tool to create transactions in a BlazeMeter workspace for service virtualization.

Delete API Monitoring Schedule

Tool to delete a specific test schedule by its ID.

Delete Private Location Workspace

Tool to remove a workspace from a private location.

Delete Project

Tool to delete a specific project by its ID.

Delete Test File

Tool to delete a file from a test.

Delete Tests

Tool to delete a test by its ID.

Delete Workspace Asset Dependency

Tool to delete a dependency from a workspace's asset repository by its ID.

Delete Workspace Asset

Tool to delete an asset from a workspace in BlazeMeter's Asset Repository.

Delete Workspace Assets Dependencies

Tool to delete asset dependencies by source/target in a workspace.

Delete Workspace Logs

Tool to delete master test execution logs from a BlazeMeter workspace.

Delete Workspace Managers

Tool to remove managers from a workspace.

Delete Workspace Package

Tool to delete a package from a workspace in the BlazeMeter Asset Repository.

Duplicate Test

Tool to duplicate an existing test by its ID.

Export Package

Tool to export a package from BlazeMeter Asset Repository as a zip file.

Export Workspaces Packages

Tool to export multiple packages from a workspace as a zip file.

Generate Test Data from Data Model

Tool to generate test data from a data model in Asset Repository.

Generate Workspace Test Data

Tool to generate synthetic test data on-the-fly without storing in Asset Repository.

Get Accounts

Tool to retrieve a list of accounts associated with the authenticated user.

Get API Monitoring Schedule

Tool to retrieve details of a specific API monitoring schedule by its ID.

Get API Monitoring Schedules

Retrieves a paginated list of API monitoring test schedules.

Get Generator Functions

Tool to retrieve all available test data generator functions from BlazeMeter Test Data API.

Get Generator Seed Lists

Tool to retrieve a list of all available seed lists from BlazeMeter Test Data Management API.

Get Info Health

Tool to retrieve the BlazeMeter service health status.

Get Info Version

Tool to retrieve BlazeMeter service version information.

Get Masters Reports Main Summary

Tool to retrieve request statistics summary for a master test run.

Get Multi Test

Tool to retrieve details of a specific multi-test.

Get Multi Tests

Retrieves a paginated list of multi-tests within a BlazeMeter workspace.

Get Private Locations

Tool to retrieve a list of private locations filtered by account or workspace.

Get Project Details

Tool to retrieve detailed information about a specific project by its ID.

Get Projects

Tool to retrieve a list of projects within a specified workspace.

Get Regions

Tool to retrieve a list of all available test regions for API monitoring.

Get Search Metadata

Retrieve metadata about searchable entities, fields, relationships, and operators in BlazeMeter's search API.

Get Shared Folders

Tool to retrieve a list of shared folders within a specified workspace.

Get Tags

Tool to retrieve a list of all tags from BlazeMeter Mock Services API.

Get Test Details

Tool to retrieve complete details of a specific test by its ID.

Get Tests

Retrieve a list of performance tests filtered by workspace or project.

Get Tests Files

Tool to list all files associated with a test.

Get Test Validations

Tool to retrieve validation results for a specific test by its ID.

Get User

Retrieve the authenticated user's profile information including their default project and preferences.

Get User Active Sessions

Tool to retrieve the list of active test sessions for the authenticated user.

Get User Invites

Tool to retrieve pending invites for the authenticated user.

Get User Projects

Tool to retrieve all projects belonging to the authenticated user.

Get Workspace Details

Tool to retrieve detailed information about a specific workspace by its ID.

Get Workspace Package

Tool to retrieve a specific package by its ID from a workspace in the BlazeMeter Asset Repository.

Get Workspaces

Tool to retrieve a list of workspaces for a specified account.

Get Workspace Assets

Tool to retrieve all data models (assets) in a workspace for Test Data Management.

Get Workspace Asset By ID

Tool to retrieve a specific asset by ID from the Test Data Management Asset Repository.

Get Workspace Asset Data

Tool to retrieve data from a specific asset in a workspace's asset repository.

Get Workspace Assets Dependencies

Tool to retrieve all dependencies for a given workspace with optional filtering criteria.

Get Workspace Asset Dependency

Tool to retrieve a specific dependency by ID from a workspace's asset repository.

Get Asset Dependencies

Tool to retrieve dependencies for a specific asset in a workspace from the BlazeMeter Asset Repository.

Get Workspace Data Model By ID

Tool to retrieve a specific data model by ID from a workspace in Test Data Management.

Get Virtual Service Template by ID

Tool to get virtual service template details from a specific workspace.

Get Workspace Packages

Tool to retrieve packages from a BlazeMeter workspace.

Get Workspace Package Dependencies

Tool to retrieve package dependencies for a specific package in a workspace.

Get Workspace Service Mock Templates

Tool to list virtual service templates available in a workspace.

Get Workspace Transactions

Tool to list transactions for virtual services in a workspace.

Get Workspace Users

Tool to retrieve a list of users within a specified workspace.

Import Workspace Package

Import a package from a ZIP file into a BlazeMeter workspace.

List Generator Card Issuers

Tool to retrieve a list of available card issuers for test data generation.

Publish API Data

Publishes test data through the BlazeMeter Test Data Management API.

Register User

Tool to register a new user account in BlazeMeter.

Start Test

Tool to start a preconfigured performance load test.

Stop Master

Gracefully stop a running BlazeMeter test execution (master) by its ID.

Stop Test

Tool to stop all active masters (test executions) for a given test ID.

Terminate User Active Sessions

Tool to immediately terminate active user sessions in BlazeMeter.

Terminate Workspaces Masters

Tool to terminate all running masters in a BlazeMeter workspace.

Update API Monitoring Schedule

Tool to update the configuration of an existing API monitoring schedule.

Update Project

Tool to update an existing BlazeMeter project by its ID.

Update Test

Tool to update details of a specific test by its ID.

Update Workspace Asset

Tool to update an existing asset in a BlazeMeter workspace.

Update Workspaces Assets Dependencies

Tool to update asset dependencies in a BlazeMeter workspace.

Update Workspace Package

Tool to update an existing package in a BlazeMeter workspace.

Update Workspace Package Dependencies

Tool to update package dependencies for a specific package in a workspace.

Update Workspace Service Mock Template

Tool to update a virtual service template configuration (Service Virtualization).

Update Workspace User

Tool to update a user's role and status within a BlazeMeter workspace.

Upload Test Files

Upload a file asset (script, data file, or configuration) to a BlazeMeter test.

Upload Workspace Asset Data

Tool to upload asset data to a BlazeMeter workspace.

Validate Test

Tool to validate a specific test by its ID.

Validate Workspace Asset

Tool to validate a data model asset in a workspace for test data management.

FRAMEWORKS

How to build Blazemeter MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Blazemeter MCP with OpenAI Agents SDK

Claude Code logo

Claude Code

Use Blazemeter MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Blazemeter MCP with Claude Cowork

Codex logo

Codex

Use Blazemeter MCP with Codex

OpenClaw logo

OpenClaw

Use Blazemeter MCP with OpenClaw

Hermes logo

Hermes

Use Blazemeter MCP with Hermes

CLI logo

CLI

Use Blazemeter MCP with CLI

Google ADK logo

Google ADK

Use Blazemeter MCP with Google ADK

LangChain logo

LangChain

Use Blazemeter MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Blazemeter MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Blazemeter MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Blazemeter MCP with LlamaIndex

CrewAI logo

CrewAI

Use Blazemeter MCP with CrewAI

FAQ

Frequently asked questions

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

Yes, you can. Claude Agent SDK 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 Blazemeter tools.

Yes, absolutely. You can configure which Blazemeter 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.

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 Blazemeter data and credentials are handled as safely as possible.

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati
Harsha Gaddipati
Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya
Abhi Arya
Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave
Nirman Dave
CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu
Ryan Yu
Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola
Tomisin Jenrola
Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche
Jerome Leclanche
Co-Founder, Ingram Technologies
Blazemeter MCP Integration with Claude Agent SDK | Composio