Reaction Time Test MCP

io.github.rocnubiePublished by GitHub account rocnubiev0.1.0Updated Nov 3, 2026

Free online reaction time test with five rounds, average milliseconds, rank context, daily streaks

VerifiedSTDIODesktop only

Overview

AI-generated overview

Read-only MCP server that gives an assistant reference information about the Reaction Time Test website: test catalog, scoring rules, FAQ and official links.

What you can do
  • Retrieve the site's test catalog and documented measurement and scoring rules
  • Fetch the canonical list of official links (website, support, docs)
  • Read bundled resources covering the test catalog, a short FAQ and canonical URLs
  • Use built-in prompts to summarize the site or prepare for a browser test and interpret results conservatively
When to use it
Useful when you want an assistant to explain what the Reaction Time Test site offers, how its five-round timing is scored, or where the official pages are, without opening a browser. It does not run tests or measure reflexes, so it adds little beyond that reference context.
Requirements
Runs as a local stdio process started with Node.js; the README shows installing via the Smithery CLI or cloning the source and running pnpm install, then pointing the client config at the server entry file. No API keys, accounts or environment variables are declared.
Before you install
The server is read-only and cannot run a test or measure the user's reflexes; actual results come from the live browser test. Scores are a lightweight game metric, not a medical diagnosis or a performance guarantee. Installation instructions reference third-party tooling (Smithery CLI, pnpm) and a GitHub repository.

Installation

In SourceWeft

  1. Open Reaction Time Test MCP in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

Reaction Time Test MCP Server

Reaction Time Test - How Fast Are Your Reflexes?

[MCP Badge] [License: MIT] [Stdio Transport] [Read Only] [MCP]

A Model Context Protocol server that exposes the canonical Reaction Time Test knowledge surface — browser tests, measurement rules, and score interpretation, FAQ, official links — to MCP-compatible AI clients such as Claude Desktop, Cursor, Windsurf, and Continue. Read-only, no API keys, no quota, ~50 ms cold start.

Official website: https://reactiontimetest.click

⏱️ About Reaction Time Test

Reaction Time Test is a free browser test built around five rounds of waiting for green and tapping as quickly as possible. It reports average milliseconds, rank context, a daily streak, and a shareable result card without requiring an account.

The site also offers click speed, aim, memory, number memory, and typing tests. Scores and streaks stay in browser localStorage, and the application has no server endpoint for test results. This MCP explains the test catalog and measurement rules as read-only context; it cannot run a test or measure the user's reflexes.

Use the live test for an actual result. A browser reaction score is a lightweight game metric, not a medical diagnosis or a guarantee of performance in another setting.

Tools

get_test_overview

Return the test catalog and documented measurement or scoring rules exposed by the site. (Reaction Time Test)

Input: no parameters. Returns: text/markdown.

get_official_links

Return the canonical list of official links for Reaction Time Test (website, support, docs when available).

Input: no parameters. Returns: text/markdown.

Resources

  • site://reactiontimetest/tests — Public test catalog, measurement workflow, and score-interpretation boundaries.
  • site://reactiontimetest/faq — Short FAQ generated from public site metadata.
  • site://reactiontimetest/links — Canonical URLs to share with users.

Prompts

tell_me_about_reactiontimetest

Summarize what the site is, who it's for, and how it works. — Reaction Time Test

run_a_test_reactiontimetest

Prepare for a browser test and interpret its result conservatively. — Reaction Time Test

Installation

Install via Smithery

bash
npx -y @smithery/cli install reactiontimetest-mcp --client claude

(Replace claude with cursor, windsurf, or continue for those clients.)

Install from source

bash
git clone https://github.com/rocnubie/reactiontimetest-mcp.gitcd reactiontimetest-mcppnpm install

Then add to your MCP client config (claude_desktop_config.json for Claude Desktop, mcp.json for Cursor / Windsurf / Continue):

json
{  "mcpServers": {    "reactiontimetest-mcp": {      "command": "node",      "args": [        "/absolute/path/to/reactiontimetest-mcp/src/index.mjs"      ]    }  }}

Debug with MCP Inspector

bash
npx @modelcontextprotocol/inspector node src/index.mjs

Official Links

Development

bash
pnpm installpnpm start                 # run the server over stdio

License

MIT

Source: README.md at commit 5489a07

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts