General Tools

whathappen.today

Provides date and time details, public holiday lookups, and historical events for any date.

1 endpoint6 known toolsFirst detected October 22, 2026Last detected October 22, 2026

ENDPOINT 1

https://whathappen.today/mcp

No auth detected

MCP server metadata

Name: whathappen
Version: 1.0.0

Capabilities

tools.listChanged

Server instructions

Use `today` before answering anything that depends on the current date, weekday or week number; pass the user's IANA time zone when you know it. Use `next_holiday` or `holidays` for public holidays in 28 countries. Holiday dates are for reference; quote the official source for anything important. No inputs are logged.

Known tools 6

today

Today's date in a time zone: weekday, ISO week, day of the year, days left in the year, moon phase and UTC offset.

Inferred read-only

date_info

Weekday, ISO week, day of the year, moon phase and (with a country) holiday status for any date from 0001-01-01 to 9999-12-31, plus how many days it is from today.

Inferred read-only

holidays

All public holidays of one country for a year (2020–2030), including substitute days off, dates not yet officially confirmed (moon sightings, yearly announcements), and China's make-up working days.

Inferred read-only

next_holiday

The next public holidays of a country after today (in the country's or the given time zone), with the number of days until each.

Inferred read-only

on_this_day

Notable events, births, deaths and observances for a calendar day, from Wikipedia (CC BY-SA 4.0; the result carries the attribution to show).

Inferred read-only

list_countries

The 28 countries with holiday data, their default time zone and what each list covers.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.whathappen]
url = "https://whathappen.today/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "whathappen": {
      "type": "http",
      "url": "https://whathappen.today/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: whathappen
Remote MCP URL: https://whathappen.today/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "whathappen": {
      "url": "https://whathappen.today/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "whathappen": {
      "type": "http",
      "url": "https://whathappen.today/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "whathappen",
  "transport": "streamable-http",
  "url": "https://whathappen.today/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.