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Xk6 MCP Server

@dgzlopes

リポジトリ

基本情報

カテゴリ

その他

ライセンス

AGPL-3.0

トランスポート

stdio

作者

dgzlopes

Xk6 MCP Server について

Test MCP servers with k6

#xk6

Xk6 MCP Server の設定

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

Xk6 MCP Server のツール

ツール一覧はまだありません

この掲載には表示できるツール一覧がまだありません。サーバーにツールがないという意味ではありません。対応機能はプロジェクトのドキュメントをご確認ください。

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

よくある質問

1

What about non-stdio transports?

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

2

What about pagination?

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

3

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.

4

Is this officially supported by Grafana Labs?

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

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