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National Weather Service MCP Server
for AI Agents

Connect your AI agent to StackOne's National Weather Service MCP server and give it 67 MCP tools out of the box. Auth, tool execution, and security all managed.

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National Weather Service MCP Server

Built by

StackOne

Coverage

67 Agent Actions

Create, read, update, and delete across National Weather Service — and extend your agent's capabilities with custom actions.

MCP Actions → Build Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your National Weather Service MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every National Weather Service tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every National Weather Service call.

Tools Discovery →

What is the National Weather Service MCP Server?

A National Weather Service MCP server lets AI agents read and write National Weather Service data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's National Weather Service MCP server ships with 67 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All National Weather Service MCP Tools

Every action from National Weather Service's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

Alerts

List Alerts
Query all weather alerts with optional filters.
Get Alert
Get a single alert by its ID.

CWAs

List CWAs
List Center Weather Advisories for a CWSU.
Get CWA
Get a specific Center Weather Advisory.

SIGMETs

List SIGMETs
Query aviation SIGMETs.
Get SIGMET
Get a specific SIGMET.

Icons

List Icons
Get icon code metadata.
Get Icon
Get a single-condition forecast icon image.

Office Headlines

List Office Headlines
List headlines issued by an office.
Get Office Headline
Get a specific office headline.

Products

List Products
Query NWS text products.
Get Product
Get a text product by ID.

Product Types

List Product Types
List all product types.
Get Product Type
List products of a specific type.

Radar Servers

List Radar Servers
List radar servers.
Get Radar Server
Get a radar server by ID.

Radar Stations

List Radar Stations
List radar stations.
Get Radar Station
Get a radar station by ID.

Radio Transmitters

List Radio Transmitters
List NOAA Weather Radio transmitters.
Get Radio Transmitter
Get a NOAA Weather Radio transmitter.

Stations

List Stations
List observation stations.
Get Station
Get metadata for an observation station.

Station TAFs

List Station TAFs
List Terminal Aerodrome Forecasts for a station.
Get Station TAF
Get a specific Terminal Aerodrome Forecast.

Zones

List Zones
List forecast, county, and fire zones.
Get Zone
Get metadata for a zone.

Other (41)

List Active Alerts
List all currently active weather alerts.
Get Active Alerts Count
Get counts of currently active alerts.
List Active Alerts By Zone
List active alerts for a specific zone.
List Active Alerts By Area
List active alerts for a state, territory, or marine area.
List Active Alerts By Region
List active alerts for a marine region.
List Alert Types
List all recognized alert event types.
Get CWSU
Get metadata for a Center Weather Service Unit.
List SIGMETs By ATSU
List SIGMETs for an ATSU.
List SIGMETs By ATSU And Date
List SIGMETs for an ATSU on a date.
List Glossary Terms
List all NWS glossary terms and definitions.
Get Gridpoint
Get raw forecast data for a gridpoint.
Get Gridpoint Forecast
Get the multi-day textual forecast for a gridpoint.
Get Gridpoint Hourly Forecast
Get the hourly forecast for a gridpoint.
List Gridpoint Stations
List observation stations for a gridpoint.
Get Dual Condition Icon
Get a dual-condition forecast icon image.
Get Satellite Thumbnail
Get a satellite thumbnail image for an area.
Get Office
Get metadata for a forecast office.
Get Office Briefing
Get the weather briefing for an office.
Get Office Briefing Download
Download a specific office briefing.
Get Office Weather Story
Get the weather story for an office.
Get Office Weather Story Image
Download a weather story image.
Get Point
Resolve a coordinate to its forecast metadata.
Get Point Radio Transmitters
List NOAA Weather Radio transmitters for a coordinate.
List Product Locations
List all product issuance locations.
List Product Type Locations
List locations that issue a product type.
List Location Product Types
List product types issued at a location.
List Products By Type And Location
List products of a type at a location.
Get Latest Product By Type And Location
Get the latest product of a type at a location.
List Radar SPGDs
List radar Super-resolution Product Generation devices.
Get Radar Station Alarms
Get alarms for a radar station.
Get Radar Queue
Get the radar data queue for a host.
Get Radar Profiler
Get wind profiler data for a station.
Get Radio Broadcast Area
Get the broadcast coverage area for a transmitter.
List Station Observations
List observations for a station.
Get Latest Station Observation
Get the latest observation for a station.
Get Station Observation At Time
Get a station observation at a specific time.
List Zones By Type
List zones of a specific type.
Get Zone Forecast
Get the forecast for a zone.
Get Zone Radio Transmitters
List NOAA Weather Radio transmitters for a zone.
List Zone Observations
List observations for a forecast zone.
List Zone Stations
List observation stations for a forecast zone.

Set Up Your National Weather Service MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to National Weather Service in under 10 lines of code.

MCP Clients

Agent Frameworks

Claude Desktop-

JSON

Claude Desktop Docs

{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

Platform Resources

MCP Code Mode: Keeping Tool Responses Out of Agent Context

Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.

11 min

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

MCP vs A2A: Architecture, Security, and When to Use Each

MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.

12 min

MCP vs API: What Hundreds of Connector Builds Taught Us

MCP wraps APIs, it doesn't replace them. After building hundreds of connectors that serve both, here's when each approach wins.

14 min read

National Weather Service MCP Server FAQ

Does StackOne have a National Weather Service MCP server?

Yes. StackOne offers a hosted National Weather Service MCP server with 67 pre-built actions, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.

National Weather Service MCP server vs direct API integration — what's the difference?

A National Weather Service MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling National Weather Service. A National Weather Service MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling National Weather Service at runtime. StackOne provides both.

How does National Weather Service authentication work for AI agents?

National Weather Service authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own National Weather Service account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.

Are National Weather Service MCP tools vulnerable to prompt injection?

Yes — National Weather Service MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.

What is the context bloat of a National Weather Service agent and how do I avoid it?

Context bloat happens when National Weather Service tool schemas and API responses eat your National Weather Service agent's memory, preventing it from reasoning effectively. A single National Weather Service query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.

Can I limit which actions my National Weather Service agent can access?

Yes — you can limit which actions your National Weather Service agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.

Can I create custom agent actions for my National Weather Service MCP server?

Yes — you can create custom agent actions for your National Weather Service MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research National Weather Service's API, generate production-ready connector YAML, test against the live API, and validate before you ship.

When should I NOT use a National Weather Service MCP server?

Skip a National Weather Service MCP server if your integration is purely software-to-software — direct National Weather Service API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call National Weather Service actions at runtime.

What AI frameworks and AI clients does the StackOne National Weather Service MCP server support?

The StackOne National Weather Service MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.

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National Weather Service MCP Serverfor AI Agents