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Ground Truth Worldwide MCP Server

answering

Ground Truth Worldwide is answering right now. Last checked 2 min ago. It exposes 2 tools.

Live, cited facts for anywhere on Earth: weather, rivers, floods, quakes, disasters, air quality.

Uptime history 11 hours of history
11 hours agonow
100.0%
Uptime 24h
38 of 38 checks
2
Tools
read from the server
526 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Ground Truth Worldwide every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add ground-truth-worldwide --transport http https://gt.llpro.ai/mcp
Settings → Connectors → Add custom connector, then paste this address
https://gt.llpro.ai/mcp
~/.codex/config.toml
[mcp_servers.ground-truth-worldwide]
url = "https://gt.llpro.ai/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "ground-truth-worldwide": {
      "url": "https://gt.llpro.ai/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "ground-truth-worldwide": {
      "type": "http",
      "url": "https://gt.llpro.ai/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

ground
ground_truth_ask
Use when you need a current, verifiable real-world fact instead of guessing: get cited, time-stamped public facts for anywhere on Earth: weather, river levels, floods, earthquakes, disasters, air quality, US weather alerts (road closures, power outages, burn bans report 'not connected' until sources exist). Every answer has fact, place, time, source_url, age_seconds, stale, confidence.
ground_truth_sources
List topics, their sources and whether each is connected.

Endpoints

URLTransportStateLatencyChecked
https://gt.llpro.ai/mcp streamable-http answering 493 ms 2 min ago

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Ground Truth Worldwide — questions

Answers built from our own checks of this server.

What can Ground Truth Worldwide do?
It exposes 2 tools, read directly from the server on our last check. Among them: ground_truth_ask, ground_truth_sources. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Ground Truth Worldwide working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 38 of 38 checks got a reply (100.0%), average response time 526 ms. The bar chart above shows every period we have measured.
How do I connect Ground Truth Worldwide?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Ground Truth Worldwide need an API key?
No. Ground Truth Worldwide completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Ground Truth Worldwide?
It answers our handshake in 526 ms on average, which is faster than 22% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.