Openworkdays is answering right now. Last checked 11 min ago. It exposes 1 tools. Last commit 17 May 2026.
Zero-signup business-day date-math API: add days, count days between dates, is-business-day.
Over the last week it answered 82.5% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.
claude mcp add openworkdays --transport http https://openworkdays.vercel.app/api/mcp
https://openworkdays.vercel.app/api/mcp
[mcp_servers.openworkdays]
url = "https://openworkdays.vercel.app/api/mcp"
{
"mcpServers": {
"openworkdays": {
"url": "https://openworkdays.vercel.app/api/mcp"
}
}
}
{
"servers": {
"openworkdays": {
"type": "http",
"url": "https://openworkdays.vercel.app/api/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
businessdays
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://openworkdays.vercel.app/api/mcp | streamable-http | answering | 249 ms | 11 min ago |
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Answers built from our own checks of this server.