fourzerotwo-si Global Weather API
Global Weather (MET Norway): Worldwide weather forecasts, sunrise, sunset and moon phase, and ocean forecasts for any point.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Fourzerotwo Si Global Weather API
version: 1.1.0
contact:
url: https://fourzerotwo.si
description: 'Operations tagged global-weather across 2 of this provider''s published API definitions: openapi.json, fourzerotwo-si-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://fourzerotwo.si
tags:
- name: global-weather
description: 'Global Weather (MET Norway): Worldwide weather forecasts, sunrise, sunset and moon phase, and ocean forecasts for any point.'
paths:
/v1/global-weather/forecast-complete:
get:
operationId: global_weather__forecast_complete
summary: 'Global Weather (MET Norway): Detailed forecast'
description: 'Full forecast including humidity, pressure, fog, UV and precipitation ranges. Price: $0.003 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- global-weather
externalDocs:
url: https://fourzerotwo.si/apis/global-weather/forecast-complete
parameters:
- name: lat
in: query
required: true
description: Latitude
schema:
type: string
example: '51.5'
- name: lon
in: query
required: true
description: Longitude
schema:
type: string
example: '-0.12'
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.003000'
x-free-tier: free
x-mcp-tool: global-weather__forecast-complete
servers:
- url: https://fourzerotwo.si
/v1/global-weather/sun:
get:
operationId: global_weather__sun
summary: 'Global Weather (MET Norway): Sunrise and sunset'
description: 'Sunrise, sunset and solar noon for a point and date. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- global-weather
externalDocs:
url: https://fourzerotwo.si/apis/global-weather/sun
parameters:
- name: lat
in: query
required: true
description: Latitude
schema:
type: string
example: '51.5'
- name: lon
in: query
required: true
description: Longitude
schema:
type: string
example: '-0.12'
- name: date
in: query
required: false
description: YYYY-MM-DD (default today)
schema:
type: string
example: '2026-10-10'
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: global-weather__sun
servers:
- url: https://fourzerotwo.si
/v1/global-weather/moon:
get:
operationId: global_weather__moon
summary: 'Global Weather (MET Norway): Moon phase and times'
description: 'Moonrise, moonset and moon phase for a point and date. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- global-weather
externalDocs:
url: https://fourzerotwo.si/apis/global-weather/moon
parameters:
- name: lat
in: query
required: true
description: Latitude
schema:
type: string
example: '51.5'
- name: lon
in: query
required: true
description: Longitude
schema:
type: string
example: '-0.12'
- name: date
in: query
required: false
description: YYYY-MM-DD
schema:
type: string
example: '2026-10-10'
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: global-weather__moon
servers:
- url: https://fourzerotwo.si
/v1/global-weather/ocean:
get:
operationId: global_weather__ocean
summary: 'Global Weather (MET Norway): Ocean forecast'
description: 'Wave height and direction, sea temperature and currents (Nordic and North Sea waters). Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- global-weather
externalDocs:
url: https://fourzerotwo.si/apis/global-weather/ocean
parameters:
- name: lat
in: query
required: true
description: Latitude
schema:
type: string
example: '60.10'
- name: lon
in: query
required: true
description: Longitude
schema:
type: string
example: '5.00'
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.002000'
x-free-tier: free
x-mcp-tool: global-weather__ocean
servers:
- url: https://fourzerotwo.si
/v1/global-weather/forecast:
get:
operationId: global_weather__forecast
summary: 'Global Weather (MET Norway): Forecast'
description: 'Hourly-then-6-hourly forecast for ~9 days: temperature, wind, cloud, precipitation, symbol. Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- global-weather
externalDocs:
url: https://fourzerotwo.si/apis/global-weather/forecast
parameters:
- name: lat
in: query
required: true
description: Latitude
schema:
type: string
example: '51.5'
- name: lon
in: query
required: true
description: Longitude
schema:
type: string
example: '-0.12'
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.002000'
x-free-tier: free
x-mcp-tool: global-weather__forecast
servers:
- url: https://fourzerotwo.si
components:
responses:
PaymentRequired:
description: x402 payment required. The body (also base64 in the PAYMENT-REQUIRED header) lists accepted payments.
headers:
PAYMENT-REQUIRED:
schema:
type: string
description: Base64 JSON x402 v2 PaymentRequired
content:
application/json:
schema:
type: object
properties:
x402Version:
type: integer
error:
type: string
accepts:
type: array
items:
type: object
Error:
description: 400 = invalid input, 404 = not found at the source, 502 = the source failed. Never charged.
content:
application/json:
schema:
type: object
properties:
error:
type: string
charged:
type: boolean
securitySchemes:
freeKey:
type: apiKey
in: header
name: X-API-Key
description: Optional free key (fzt_…) for the free tier.
x-refined-from:
- openapi.json
- fourzerotwo-si-openapi.json