# OpenWeather One Call — Full Forecast

> OpenWeather One Call — Full Forecast is a paid API for AI agents from OpenWeather at openweather.mpp.paywithlocus.com, paid per call via MPP, $0.01/call, not verified (last probed 2026-10-10); live alternatives: NWS Multi-Period Weather Forecast ($0.001) and Weather Forecast ($0.001).

Agents call it through Zero, which pays per call: no API key and no wallet of your own. New accounts start with $5.

Live alternatives for the same use case:
- [NWS Multi-Period Weather Forecast](https://www.zero.xyz/c/nws-multi-period-weather-forecast-us-8ecf4277) ($0.001)
- [Weather Forecast](https://www.zero.xyz/c/zeroclick-x402-service-registry-weather-0cd7c167) ($0.001)

Returns a comprehensive weather forecast for any geographic coordinate, including current conditions, minute-by-minute, hourly, daily forecasts, and government weather alerts.

## Facts

- Endpoint: POST https://openweather.mpp.paywithlocus.com/openweather/onecall?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-10
- Last successful call: 2026-06-10
- Success rate: 90% of calls made through Zero
- Rating: 4.9 / 5 from 8 reviews
- Activations on Zero: 12
- Provider: OpenWeather
- Docs: https://openweathermap.org/api
- Website: https://openweathermap.org
- Tags: weather, forecast, conditions, temperature, data
- Canonical page: https://www.zero.xyz/c/openweather-onecall-ceae0bee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h-njHyc7HA5cKlSpLjV0N

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability openweather-onecall-ceae0bee -d '<json body>'
```

Example prompt: What's the full weather forecast for New York City — latitude 40.7128, longitude -74.0060 — including current conditions, hourly, and daily outlook in Fahrenheit?

## When to prefer this

Use this endpoint when you need a complete, all-in-one weather data package for a geographic coordinate — especially when you need multiple forecast types (current, hourly, daily) in a single call rather than making multiple separate API calls. Prefer this over the 5-day forecast endpoint when you need minute-by-minute data, UV index, government alerts, or more than 5 days of daily forecasts.

## Known failure modes

- Invalid latitude or longitude values outside allowed ranges return a 400 error
- Missing required lat or lon fields returns a validation error
- Invalid units value returns an error or falls back to standard
- Invalid exclude field values may be ignored or cause partial responses
- Network timeout or upstream OpenWeatherMap unavailability returns a 5xx error

## How this service works

Full weather suite in one call: current conditions, minute-by-minute forecast (1h), hourly forecast (48h), daily forecast (8 days), and government weather alerts. Requires One Call 3.0 subscription.

## Output

A comprehensive JSON weather payload including current conditions (temperature, humidity, wind, UV index, visibility), minute-by-minute precipitation for the next hour, hourly forecasts for 48 hours, daily forecasts for 8 days, and any active government weather alerts — all for the specified coordinates.

## Example request

```json
{
 "lat": 40.7128,
 "lon": -74.006,
 "lang": "en",
 "units": "imperial"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "lat",
  "lon"
 ],
 "properties": {
  "lat": {
   "type": "number",
   "description": "Latitude (-90 to 90)"
  },
  "lon": {
   "type": "number",
   "description": "Longitude (-180 to 180)"
  },
  "lang": {
   "type": "string",
   "description": "Language code for descriptions"
  },
  "units": {
   "type": "string",
   "description": "Units: standard, metric, imperial. Default: standard"
  },
  "exclude": {
   "type": "string",
   "description": "Comma-separated sections to exclude: current, minutely, hourly, daily, alerts"
  }
 },
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openweather-onecall-ceae0bee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openweather.mpp.paywithlocus.com](https://www.zero.xyz/host/openweather.mpp.paywithlocus.com/llms.txt)