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Free online reaction time test with five rounds, average milliseconds, rank context, daily streaks
About
Free online reaction time test with five rounds, average milliseconds, rank context, daily streaks
Security Report
Excellent security posture. This is a read-only MCP server with no authentication requirements, no external API calls, no file I/O, and no dangerous operations. All tools and resources serve static, pre-defined content about a public website. Code is clean, well-structured, and permissions are minimal and appropriate for the server's purpose. Supply chain analysis found 1 known vulnerability in dependencies (0 critical, 1 high severity).
4 files analyzed · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-rocnubie-reactiontimetest-mcp": {
"args": [
"-y",
"msa-reactiontimetest-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
Reaction Time Test MCP Server
Reaction Time Test - How Fast Are Your Reflexes?
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
npx -y @smithery/cli install reactiontimetest-mcp --client claude
(Replace claude with cursor, windsurf, or continue for those clients.)
Install from source
git clone https://github.com/rocnubie/reactiontimetest-mcp.git
cd reactiontimetest-mcp
pnpm install
Then add to your MCP client config (claude_desktop_config.json for Claude Desktop, mcp.json for Cursor / Windsurf / Continue):
{
"mcpServers": {
"reactiontimetest-mcp": {
"command": "node",
"args": [
"/absolute/path/to/reactiontimetest-mcp/src/index.mjs"
]
}
}
}
Debug with MCP Inspector
npx @modelcontextprotocol/inspector node src/index.mjs
Official Links
- Website: https://reactiontimetest.click
Development
pnpm install
pnpm start # run the server over stdio
License
MIT
Reviews
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