VERIFIED

K6

Safety: 50/100

0.0(0)

Executes k6 load tests via MCP, allowing LLMs to orchestrate and analyze performance testing. Requires k6 and Python environment.

MCP ServersAI & LLMDevelopmentSearch & WebUtilitiesFreemium

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Overview

Executes k6 load tests via MCP, allowing LLMs to orchestrate and analyze performance testing. Requires k6 and Python environment.

The k6-mcp-server is relatively safe for executing load tests if the k6 scripts are trusted and resource limits are carefully managed. Untrusted scripts or excessive resource allocation could pose risks. Ensure the k6 binary is from a trusted source.

Performance depends on the complexity of the k6 script, the number of VUs, and the duration of the test. High VUs and long durations can consume significant resources.

Cost depends on the infrastructure used to run the k6-mcp-server and the resources consumed by the k6 tests. Consider the cost of running k6 tests in terms of CPU, memory, and network bandwidth.

Python24 starsMIT

Connections & Capabilities

Connects To

GitHub

Capabilities

Exec

Client Compatibility

Claude Desktop

full

Cursor

full

Windsurf

full

VS Code (Copilot)

untested

Quickstart

Claude Desktop Config

{
  "mcpServers": {
    "k6": {
      "command": "/path/to/bin/uv",
      "args": [
        "--directory",
        "/path/to/k6-mcp-server",
        "run",
        "k6_server.py"
      ]
    }
  }
}

Environment Variables

K6_BIN

Tools (2)

moderate

execute_k6_test

Runs a k6 test with a specified script file, using default duration and VUs.

Executes arbitrary k6 scripts, potentially consuming resources.

moderate

execute_k6_test_with_options

Runs a k6 test with a specified script file, duration, and number of virtual users.

Executes arbitrary k6 scripts with user-defined parameters, potentially consuming excessive resources.

Security

Auth Method

None

Known Risks

!Malicious k6 scripts could perform unintended actions.
!Resource exhaustion due to high VUs or long duration.
!Compromised k6 binary could lead to arbitrary code execution.
!Lack of input validation could cause unexpected behavior or errors.

Safety Score

moderate risk

Positive

+Requires explicit script file path, limiting accidental execution.
+Execution is contained within the k6 runtime.
+No direct system-level access beyond k6's capabilities.
+Test duration and VUs can be controlled.

Risks

-Potential for resource exhaustion if VUs and duration are set too high.
-k6 scripts can execute arbitrary JavaScript code, posing a risk if the scripts are malicious.
-Server requires access to the k6 binary, which could be compromised.
-Lack of built-in input validation could lead to unexpected behavior.

Use Cases

Load Testing Automation

-Automated performance testing as part of CI/CD pipelines.
-Scheduled load tests triggered by LLM-based event detection.
-Dynamic adjustment of load based on real-time traffic analysis.

Performance Analysis

-LLM-powered analysis of k6 test results to identify bottlenecks.
-Automated generation of performance reports and dashboards.
-Root cause analysis of performance regressions using LLM insights.

Synthetic Traffic Generation

-Generating realistic user traffic patterns for testing and simulation.
-Simulating peak load scenarios to assess system resilience.
-Creating synthetic data for performance testing purposes.

Who Is This For?

Best For

Automated performance testing workflows.
LLM-driven load testing scenarios.
Integrating performance testing into CI/CD pipelines.
Performance analysis and reporting.

Not Ideal For

Environments with strict security constraints.
Running untrusted k6 scripts.
Real-time production traffic simulation without careful planning.

Autonomy & Execution

Default ModeRead and Write enabled

The server allows execution of k6 tests, which can have significant impact depending on the script. No built-in sandboxing or rollback mechanisms are provided.

StatelessYes

Retry LogicNot documented

ConcurrencyNot documented

Production Tip

Monitor resource usage (CPU, memory, network) on the server during test execution to prevent performance degradation or crashes.

FAQ

What are the prerequisites for running this server?

Python 3.12+, k6 load testing tool, and uv package manager.

How do I install the required dependencies?

Clone the repository and run `uv pip install -r requirements.txt`.

How do I configure the MCP server?

Provide the command and arguments in your MCP client configuration to point to the `k6_server.py` script.

What are the default options for `execute_k6_test`?

The default options are 30 seconds duration and 10 virtual users.

Can I customize the duration and number of VUs?

Yes, use the `execute_k6_test_with_options` tool to specify custom duration and VUs.

What security considerations should I keep in mind?

Ensure the k6 scripts are trusted and monitor resource usage to prevent exhaustion. Validate the k6 binary source.

How can I analyze the k6 test results?

Leverage LLMs to analyze the k6 output and generate reports or identify performance bottlenecks.

Key Features

AI & LLM Development Search & Web Utilities

Metrics

Discovered2/14/2026

Reviews0

Saved By0 users

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