xk6-mcp

Name: xk6-mcp
Author: dgzlopes

@dgzlopes

リポジトリ

xk6-mcp について

Test MCP servers with k6

#xk6

基本情報

カテゴリ

その他

ライセンス

AGPL-3.0

ランタイム

トランスポート

stdio

公開者

dgzlopes

設定

標準の設定はありません

このサーバーの README には解析可能な MCP 設定ブロックが含まれていません。インストール手順はリポジトリをご確認ください。

リポジトリ

ツール

ツールは検出されませんでした

ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。

概要

What is xk6-mcp?

xk6-mcp is a k6 extension for testing Model Context Protocol (MCP) servers. It lets developers load-test MCP servers using k6, providing client support for stdio, SSE, and Streamable HTTP transports, built-in pagination, and automatic RED-style metrics.

How to use xk6-mcp?

Install xk6, then build a k6 binary with the extension: xk6 build --with github.com/dgzlopes/xk6-mcp. Import the module in your script with import mcp from 'k6/x/mcp'; and run the built binary: ./k6 run script.js.

Key features of xk6-mcp

Supports stdio, SSE, and Streamable HTTP transports
Automatic pagination via *All methods (e.g., listAllTools())
Manual pagination for fine-grained control
Built-in RED metrics (request duration, count, errors)
Tagged metrics per MCP method (e.g., GetPrompt, ListTools)
Enables connection, tool, resource, and prompt operations

Use cases of xk6-mcp

Load testing MCP server responsiveness and reliability
Validating tool, resource, and prompt availability under load
Monitoring MCP server error rates and latency in k6 tests

FAQ from xk6-mcp

What about non-stdio transports?

Both SSE and Streamable HTTP are supported — use mcp.SSEClient or mcp.StreamableHTTPClient respectively.

What about pagination?

The extension offers two ways: listAllTools() (and similar) automatically handle pagination, while listTools() requires a cursor argument for manual pagination.

What about metrics?

xk6-mcp automatically tracks RED-style metrics: mcp_request_duration (trend), mcp_request_count (counter), and mcp_request_errors (counter), each tagged with the MCP method name.

Is this officially supported by Grafana Labs?

No, this extension is experimental and not officially supported by Grafana Labs.

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