National Weather Service

The National Weather Service (NWS) is a government agency within the National Oceanic and Atmospheric Administration (NOAA) that is responsible for providing weather forecasts, warnings, and other meteorological information to the public, government agencies, and private industries.

National Weather Service publishes 13 APIs on the APIs.io network, including Alerts API, Aviation API, Glossary API, and 10 more. Tagged areas include Federal-Government, Forecasting, and Weather.

National Weather Service’s developer surface includes authentication, developer portal, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

27.8/100 thin ▬ flat Agent 35/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessFreemiumSelf serve⚡ Free to try

13 APIs

Federal-Government Forecasting Weather

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 27.8/100 · thin

Contract Quality 10.6 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 2.7 / 17

Operational Transparency 1.2 / 11

Contract Governance 0.0 / 10

Discoverability 5.5 / 9

Regulatory Posture 3.3 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/national-weather-service: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 13

Individual APIs this provider publishes, each with its own machine-readable definition.

Open Collections 15

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Rate Limits 1

Documented rate limits and quota policies.

National Weather Service Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: national-weather-service
name: National Weather Service
description: The National Weather Service (NWS) is a government agency within the National Oceanic and Atmospheric Administration
  (NOAA) that is responsible for providing weather forecasts, warnings, and other meteorological information to the public,
  government agencies, and private industries.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/national-weather-service.png
url: https://raw.githubusercontent.com/api-evangelist/national-weather-service/refs/heads/main/apis.yml
created: '2024-01-01'
modified: '2026-05-19'
specificationVersion: '0.23'
tags:
- Federal-Government
- Forecasting
- Weather
tags_raw:
- Federal Government
- Forecasting
- Weather
apis:
- aid: national-weather-service:national-weather-service-alerts-api
  name: National Weather Service Alerts API
  description: The Alerts API from National Weather Service — 8 operation(s) for alerts.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Alerts
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-alerts-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-aviation-api
  name: National Weather Service Aviation API
  description: The Aviation API from National Weather Service — 7 operation(s) for aviation.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Aviation
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-aviation-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-glossary-api
  name: National Weather Service Glossary API
  description: The Glossary API from National Weather Service — 1 operation(s) for glossary.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Glossary
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-glossary-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-gridpoints-api
  name: National Weather Service Gridpoints API
  description: The Gridpoints API from National Weather Service — 4 operation(s) for gridpoints.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Gridpoints
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-gridpoints-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-icons-api
  name: National Weather Service Icons API
  description: The Icons API from National Weather Service — 3 operation(s) for icons.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Icons
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-icons-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-offices-api
  name: National Weather Service Offices API
  description: The Offices API from National Weather Service — 8 operation(s) for offices.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Offices
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-offices-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-points-api
  name: National Weather Service Points API
  description: The Points API from National Weather Service — 3 operation(s) for points.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Points
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-points-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-products-api
  name: National Weather Service Products API
  description: The Products API from National Weather Service — 9 operation(s) for products.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-products-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-radar-api
  name: National Weather Service Radar API
  description: The Radar API from National Weather Service — 7 operation(s) for radar.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Radar
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-radar-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-radio-api
  name: National Weather Service Radio API
  description: The Radio API from National Weather Service — 1 operation(s) for radio.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Radio
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-radio-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-stations-api
  name: National Weather Service Stations API
  description: The Stations API from National Weather Service — 7 operation(s) for stations.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Stations
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-stations-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-thumbnails-api
  name: National Weather Service Thumbnails API
  description: The Thumbnails API from National Weather Service — 1 operation(s) for thumbnails.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Thumbnails
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-thumbnails-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
- aid: national-weather-service:national-weather-service-zones-api
  name: National Weather Service Zones API
  description: The Zones API from National Weather Service — 6 operation(s) for zones.
  humanURL: https://www.weather.gov/documentation/services-web-api
  baseURL: https://api.weather.gov/
  tags:
  - Zones
  properties:
  - type: OpenAPI
    url: openapi/national-weather-service-zones-api-openapi.yml
  - type: Documentation
    url: https://www.weather.gov/documentation/services-web-api
common:
- type: AgenticAccess
  url: agentic-access/national-weather-service-agentic-access.yml
- type: DomainSecurity
  url: security/national-weather-service-domain-security.yml
- type: Authentication
  url: authentication/national-weather-service-authentication.yml
- type: GitHubOrganization
  url: https://github.com/weather-gov
- type: LinkedIn
  url: https://www.linkedin.com/company/noaa-nws
- type: Website
  url: https://www.weather.gov/
- type: Portal
  url: https://www.weather.gov/documentation/services-web-api
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com