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PopNx MCPMCP servers for people who use AI · explained in plain words

Maxoperf

by maxoperfversion 1.0.0i★ –iRuns in the cloud
Registry namecom.maxoperf/maxoperf

Install

Overview

Description from the maker (original English)

Load & browser performance testing — drive MaxoPerf from your AI agent with your API key.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Web & browsers
  • You need to fill in: Authorization

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • You fill in yourself: Authorization

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http maxoperf https://app.maxoperf.com/mcp --header 'Authorization: your-value'

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "maxoperf": {
      "url": "https://app.maxoperf.com/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "maxoperf": {
      "type": "http",
      "url": "https://app.maxoperf.com/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • Authorization secret required HTTP header
    Bearer — create one in the MaxoPerf console under Settings > API keys.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain maxoperf.com (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • … Not checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Web & browsersi

  • More stars than 0% of the other 876 servers in this category
  • Published to the registry more recently than 21% of the other 876 servers in this category
  • Basic checks equal to or better than 100% of the other 876 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Maxoperf safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: Authorization

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Browser Use, Chrome DevTools MCP, MCP Server Browser

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Browser Use

by browser-use

Lets AI do web tasks for you, such as filling forms, searching and extracting data, in the maker’s cloud browsers or on your computer.

Computer or cloud★ 120,087MITUpdated 16 days ago
Install

Chrome DevTools MCP

by ChromeDevTools

Lets AI use Chrome’s developer tools to inspect pages, find what makes them slow and spot errors. Made by the Chrome DevTools team.

Runs on your computer★ 54,821Apache-2.0Updated 15 days ago
Install

MCP Server Browser

by bytedance

MCP server for browser use access

Runs on your computer★ 39,550Apache-2.0Updated 14 months ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

⚡ MaxoPerf MCP Server

Drive the entire MaxoPerf platform from any AI agent — with your API key.

A remote, hosted [Model Context Protocol](https://modelcontextprotocol.io) server that turns Claude, Cursor, Codex, VS Code Copilot, and ChatGPT into a full performance-testing operator. Create tests, launch load runs on managed cloud runners, read results, and get root-cause analysis — all in natural language, all authenticated with your own key.

https://app.maxoperf.com/mcp

Configuration

It's a remote, hosted server — nothing to install or run. Add this to your MCP client config and set MAXOPERF_API_KEY (create one in the console → Settings → API keys):

{

"mcpServers": { "maxoperf": { "type": "http", "url": "https://app.maxoperf.com/mcp", "headers": { "Authorization": "Bearer ${MAXOPERF_API_KEY}" } } } }

Your key is validated on every call by the real platform (auth, tenancy, OpenFGA, audit) — the server stores nothing and adds no new trust boundary. Revoke the key, access dies instantly. Send the header X-MaxoPerf-MCP-Mode: read-only for a look-but-don't-touch session (write tools hidden).

Install (pick your client)

Claude Code — the plugin bundles the server and the agent skill:

/plugin marketplace add MaxoPerf/mcp

/plugin install maxoperf

Or add just the connector:

claude mcp add --transport http maxoperf https://app.maxoperf.com/mcp \ --header "Authorization: Bearer ${MAXOPERF_API_KEY}"

Cursor · VS Code / Copilot · Codex · ChatGPT · Claude Desktop — one-click deeplinks and copy-paste config in packaging/. All use the same mcpServers block above.


Tools

29 curated tools. Reads default to response_format: "concise" (pass "detailed" for the full payload); write tools require a non-read-only session, and cancel_run is hidden in read-only mode.

Context & tenancy

  • whoami — Resolve the account + default workspace behind your API key
  • list_workspaces — List workspaces visible to the account
  • set_active_workspace — Set the active workspace for the session
  • list_projects — List projects (with edit/delete permissions)
  • create_project — Create a project

Tests

  • list_tests — List tests (filter by project / workspace / type)
  • get_test — Get one test + its validation summary
  • create_test — Create a test shell (choose the engine/executor)
  • get_test_overview — Run-history overview for a test

Test files

  • upload_test_file — Upload a script/data file in one call (real 3-step presigned flow)
  • list_test_files — List a test's files + upload state
  • download_test_file — Get a short-lived download URL for a file

Runs

  • start_run — Launch a load/browser run on managed cloud runners (idempotent)
  • get_run_status — Poll lifecycle status (queued → running → passed/failed/cancelled)
  • list_runs — Paginated run history with filters
  • cancel_run — Cancel a run (destructive; hidden in read-only)
  • rerun_run — Re-run from a snapshot or the current test
  • add_runners — Scale a live run up at existing locations

Results

  • get_run_results — KPI overview: throughput, latency percentiles, error rate
  • query_run_metrics — Time-series metrics (latency / throughput / errors / load / health)
  • get_run_errors — Grouped error rows (message / count / code)

Diagnostics — root-cause & anomaly detection

  • get_run_summary — Executive summary + which failure criteria tripped
  • get_run_error_bodies — Sampled error request/response bodies + status codes
  • get_run_logs — Error-level engine/system log lines
  • get_runner_health — Runner CPU/mem trend + targetVus vs peakAchievedVus (vuShortfallPct)
  • detect_run_anomalies — Deterministic robust-outlier scan (median/MAD); terminal-gated, low false-positive

Escape hatch & discovery

  • call_platform_api — Reach any public /v1/* endpoint (secrets, environments, schedules, BYOC); admin/internal deny-listed, SSRF-safe
  • get_openapi — The public OpenAPI document
  • search_endpoints — Keyword search over the API to find the right endpoint

Prompts

Text recipes that encode the correct tool sequence — great for chat-only clients that can't read a repo:

  • run-baseline-load-test — Start a baseline run and watch it to completion
  • diagnose-latency-regression — Compare p95 across two runs
  • summarize-run — Plain-language summary of one run
  • plan-and-build-test — Turn a goal into project → test → upload → run
  • choose-executor — Recommend an engine (k6 / JMeter / Playwright / Selenium)
  • scan-endpoints-for-hotspots — Rank likely hotspots from an OpenAPI spec or pasted list
  • setup-secrets-and-envs — Wire workspace secrets + multi-env before a run
  • diagnose-run-failure — Ranked root cause for a failed run
  • explain-run-anomalies — Explain each detected outlier

Resources

  • maxoperf://openapi — The public OpenAPI spec
  • maxoperf://run/{id} — A run report summary

Try it

  • "Load test https://api.example.com/checkout with 500 users for 5 minutes and fail it if p95 goes over 800ms."
  • "Scan my repo for the endpoints most worth load-testing, then build and run a test for the riskiest one."
  • "Why did run run-0000000001 fail? Check the errors, the logs, and whether the runners actually reached the target load."

Pair it with the brain

The MCP server is the hands. The bundled [MaxoPerf agent skill](https://github.com/MaxoPerf/agent-skill) (npx @maxoperf/agent-skill install, included in the Claude plugin, or in agent-skill/ here) is the brain — it reads your code, finds the hotspots, builds and runs the test, and diagnoses why it broke, driving these tools automatically.

What's in this repo

PathWhat
.claude-plugin/Claude Code plugin (bundles the MCP connector + the skill)
agent-skill/A copy of the maxoperf agent skill (canonical home: MaxoPerf/agent-skill)
packaging/MCP Registry server.json, .mcpb, VS Code / Cursor deeplinks, Codex / ChatGPT setup
LAUNCHGUIDE.mdMCP directory listing metadata

[Get started →](https://maxoperf.com) · [Agent skill →](https://github.com/MaxoPerf/agent-skill) · [Docs →](https://maxoperf.com/docs)

Read-only mirror of the MaxoPerf monorepo. File issues at maxoperf.com.

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