Count earthquakes

How many earthquakes match a time and magnitude window.

Count earthquakes

How many earthquakes match a time and magnitude window.

price: $0.001 / call
free tier: free allowance
MCP tool: earthquakes__count
method: GET

GET https://fourzerotwo.si/v1/earthquakes/count

Param	Type	Description
starttime	string	YYYY-MM-DD
minmagnitude?	string	Minimum magnitude

# unpaid: returns 402 with the price
curl -i "https://fourzerotwo.si/v1/earthquakes/count?starttime=2026-09-01"
# free tier: send a free key from https://fourzerotwo.si/free
curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/earthquakes/count?starttime=2026-09-01"

Use it from an AI agent (MCP)

Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.

{
  "mcpServers": {
    "fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
  }
}

# the call the agent makes
call_api {"tool": "earthquakes__count", "arguments": {"starttime":"2026-09-01","minmagnitude":"5"}}

Count earthquakes

Count earthquakes

Use it from an AI agent (MCP)

More from Earthquakes (USGS)