What is mcpbr marketplace?

A plugin marketplace for mcpbr, a tool that benchmarks MCP servers—programs that provide tools or data to AI agents. It includes a benchmark runner that checks Docker, creates configurations, and parses results.

Use it to run repeatable evaluations of MCP servers, prepare their configurations, check Docker requirements, and read benchmark results.

It brings the setup and result-handling steps for MCP server evaluations into one place, reducing manual work and configuration mistakes.

mcpbr marketplace — Plugin for Claude Code by greynewell/mcpbr

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/greynewell/mcpbr

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/greynewell/mcpbr/marketplace/github.svg)](https://agentmods.dev/plugins/greynewell/mcpbr/marketplace)

Your own site

<a href="https://agentmods.dev/plugins/greynewell/mcpbr/marketplace"><img src="https://agentmods.dev/badge/plugins/greynewell/mcpbr/marketplace/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/greynewell/mcpbr/marketplace"><img src="https://agentmods.dev/badge/plugins/greynewell/mcpbr/marketplace.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

mcpbr marketplace scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/marketplace.json · 27 lines

What it actually says

{
  "$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
  "name": "mcpbr",
  "version": "0.14.1",
  "description": "mcpbr - MCP Benchmark Runner plugin marketplace",
  "owner": {
    "name": "mcpbr Contributors",
    "email": "[email protected]"
  },
  "plugins": [
    {
      "name": "mcpbr",
      "description": "Expert benchmark runner for MCP servers using mcpbr. Handles Docker checks, config generation, and result parsing.",
      "version": "0.14.1",
      "author": {
        "name": "mcpbr Contributors"
      },
      "source": {
        "source": "github",
        "repo": "greynewell/mcpbr",
        "path": ".claude-plugin"
      },
      "category": "development"
    }
  ]
}

Contents

The plugins it lists here

This marketplace lists 1 plugin kept in the same repository. Each has its own page, its own measurements and its own install command.

Plugin mcpbr 3 inside A not measured

Files

What ships with it

7 files beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 27 lines scan A 1076a337219a

Subscribe to this mod's changes

mcpbr marketplace is a plugin published in the GitHub repository greynewell/mcpbr (11 stars, last pushed 6mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Building agents Testing benchmarking llm-evaluation machine-learning mcp ml-evaluation model-context-protocol

mcpbr marketplace next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
mcpbr marketplacegreynewell/mcpbr	Plugin	11	6mo ago	MIT	A	—	Claude Code
secedgar-mcp-servercyanheads/secedgar-mcp-server	Plugin	11	today	Apache-2.0	A	—	Claude Code
insaightspirosbax/insaight	Plugin	34	1mo ago	MIT	A	—	Claude Code
maidandavid-engelmann/maidan	Plugin	9	today	MIT	A	—	Gemini CLI
todoxbeydemirfurkan/todox	Plugin	2	18d ago	MIT	A	—	Claude Code
servosityServosity/msp-skills	Plugin	73	yesterday	none	A	—	Claude Code
svg-newsvgnew/mcp	Plugin	1	9d ago	MIT	A	—	Gemini CLI