ReactionMetric MCP is answering right now. Last checked 6 min ago. It exposes 2 tools.
Five-trial reaction-time summary and links to browser-based reaction tests.
Today is the operative word: we check ReactionMetric MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.
claude mcp add reactionmetric-mcp --transport http https://reactionmetric.com/mcp
https://reactionmetric.com/mcp
[mcp_servers.reactionmetric-mcp]
url = "https://reactionmetric.com/mcp"
{
"mcpServers": {
"reactionmetric-mcp": {
"url": "https://reactionmetric.com/mcp"
}
}
}
{
"servers": {
"reactionmetric-mcp": {
"type": "http",
"url": "https://reactionmetric.com/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
find_reaction_test
summarize_reaction_trials
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://reactionmetric.com/mcp | streamable-http | answering | 255 ms | 6 min ago |
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Answers built from our own checks of this server.