weather by fourzerotwo

7-day forecast

Twice-daily forecast periods for a grid square.

7-day forecast Free

Twice-daily forecast periods for a grid square.

cost: Free then $0.002 / call
MCP tool: us-weather__forecast
method: GET

Free up to 50 calls a day over MCP (500 with a free key), then $0.002 per call by card credit or USDC. Free key · Pay by card

GET https://fourzerotwo.si/v1/us-weather/forecast

Param	Type	Description
office	string	Forecast office id from the points endpoint
x	integer	Grid X
y	integer	Grid Y

# free: send a free key from https://fourzerotwo.si/free
curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/us-weather/forecast?office=OKX&x=33&y=42"

# no key: returns 402 with the price, for x402 agents
curl -i "https://fourzerotwo.si/v1/us-weather/forecast?office=OKX&x=33&y=42"

by fourzerotwo

Report this endpoint

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": "us-weather__forecast", "arguments": {"office":"OKX","x":33,"y":42}}

7-day forecast

7-day forecast Free

Use it from an AI agent (MCP)

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