MAD Synapse · World MCP Server

by maddegen-agent Your server? Claim it

answering

MAD Synapse · World is answering right now. Last checked 8 min ago. It exposes 8 tools.

Weather, geocoding, FX rates, holidays, time zones, countries, earthquakes, sun and moon.

Uptime history 14 days of history · worst day 99%

14 days agonow

98.9%

Uptime 24h

91 of 92 checks

Tools

read from the server

481 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 10 October 2026. No other catalogue keeps this.

10 Oct a tool changed version

MAD Synapse · World missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add synapse-world --transport http https://agent.maddegen.art/hub/mcp/world

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "synapse-world": {
      "url": "https://agent.maddegen.art/hub/mcp/world"
    }
  }
}

~/.codex/config.toml

[mcp_servers.synapse-world]
url = "https://agent.maddegen.art/hub/mcp/world"

.cursor/mcp.json

{
  "mcpServers": {
    "synapse-world": {
      "url": "https://agent.maddegen.art/hub/mcp/world"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "synapse-world": {
      "url": "https://agent.maddegen.art/hub/mcp/world"
    }
  }
}

Available tools 8

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

country

country_info

Any country's essentials: capital, population, GDP and GDP per capita (World Bank), currencies, languages, calling code, internet TLD, time zones, driving side, borders, flag. Static facts from the world-countries dataset (no rate limits) plus the latest World Bank population and GDP figures. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

earthquakes

earthquakes

Earthquakes worldwide from the last hour to 30 days, filtered by minimum magnitude and optionally within a radius of a place — with depth, tsunami flag and USGS alert level. USGS real-time earthquake feeds (updated every minute). Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

geocode

geocode

Place name or address → coordinates (with city, state, country, postcode), or lat,lon → the nearest address. Up to 10 candidates. OpenStreetMap data via Photon. Returns OSM links so results can be checked. When to use: To turn names into coordinates; weather and sun_moon accept place names directly. Price: $0.001 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

holidays

holidays

Public holidays for 100+ countries for any year, whether today is a holiday there, and the next upcoming ones — including regional (state) holidays. Nager.Date open holiday data. Use for scheduling, market-closure awareness or delivery estimates. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

rates

fx_rates

Official exchange rates for 30 major currencies (European Central Bank reference rates): latest or any date since 1999, convert an amount, or a time series. Frankfurter API over ECB reference rates, published each working day ~16:00 CET. For crypto use crypto_price. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

sun

sun_moon

Sunrise, sunset, golden hour, twilight, day length and solar noon for any place and date — plus moon phase, illumination, moonrise and moonset. Astronomical calculation (SunCalc), exact and instant. Pass tz for local times. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

time

time_convert

Current time in any time zones, convert a time between zones (DST-correct), and date arithmetic: add/subtract durations, days between dates, weekday, ISO week, Unix time. Computed locally from the IANA time-zone database — no rate limits, exact. Zones are IANA names (America/New_York, Asia/Tokyo, UTC). Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

weather

weather

Current weather and hourly/daily forecast for any place name or lat,lon: temperature, feels-like, wind, gusts, rain, cloud, humidity, UV — up to 9 days. Forecast from the Norwegian Meteorological Institute (MET Norway), the same model data yr.no uses, worldwide. Place names are geocoded with OpenStreetMap. Times are UTC plus local time when tz is given (IANA, e.g. Australia/Sydney). Price: $0.001 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

Endpoints

URL	Transport	State	Latency	Checked
https://agent.maddegen.art/hub/mcp/world	streamable-http	answering	427 ms	8 min ago

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MAD Synapse · World — questions

Answers built from our own checks of this server.

What can MAD Synapse · World do?

It exposes 8 tools, read directly from the server on our last check. Among them: country_info, earthquakes, fx_rates, geocode, holidays, sun_moon and 2 more. 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 MAD Synapse · World working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 92 checks got a reply (98.9%), average response time 481 ms. The bar chart above shows every period we have measured.

How do I connect MAD Synapse · World?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does MAD Synapse · World need an API key?

No. MAD Synapse · World completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is MAD Synapse · World?

It answers our handshake in 481 ms on average, which is faster than 27% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.