# US Weather Forecast (Markdown) — National Weather Service

> US Weather Forecast (Markdown) — National Weather Service is a paid API for AI agents from x402-v2-mint-weather-forecast.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).

Returns current conditions and up to 7-day US weather forecast from the National Weather Service, formatted as Markdown, for any US location or territory by lat/lon.

## Facts

- Endpoint: POST https://x402-v2-mint-weather-forecast.vercel.app/v1/weather-forecast/fmt/markdown?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/us-weather-forecast-markdown-national-weather-service-55ef7ef4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hda6NbkLNFTqMYRdCBRci

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 us-weather-forecast-markdown-national-weather-service-55ef7ef4 -d '<json body>'
```

Example prompt: What's the current weather and 7-day forecast for New York City (latitude 40.7128, longitude -74.0060)? Give me the National Weather Service report in Markdown.

## When to prefer this

Choose this endpoint when you need official US government (NWS) weather data with up to 7-day forecast detail for any US location or territory, and you want the output pre-formatted as readable Markdown — ideal for embedding in reports, chat responses, or document pipelines without post-processing. Use the sibling Open-Meteo endpoint for non-US coordinates. Use the CSV or JSON-pick sibling endpoints when you need machine-parseable structured output instead of Markdown.

## Known failure modes

- Non-US or out-of-coverage lat/lon returns HTTP 400 with error code 'outside_us_coverage' and is not charged
- Missing or malformed lat/lon parameters return a 400 validation error
- NWS API unavailability may cause upstream timeouts or 5xx errors
- Coordinates in US waters or edge territories may occasionally fall outside NWS grid coverage

## How this service works

[concierge markdown] US weather: current + up to 7-day forecast from the National Weather Service (api.weather.gov). US and territories only; non-US lat/lon → 400 outside_us_coverage, not charged. Data only — not advice.

## Output

A Markdown-formatted document containing current weather conditions and up to 7 days of forecast data sourced from the National Weather Service, including temperature, precipitation, wind, and narrative descriptions. Returns a 400 error with code 'outside_us_coverage' (and no charge) for non-US coordinates.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/us-weather-forecast-markdown-national-weather-service-55ef7ef4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-v2-mint-weather-forecast.vercel.app](https://www.zero.xyz/host/x402-v2-mint-weather-forecast.vercel.app/llms.txt)