The weather platform built for the agentic era.
Real-time forecasts, severe weather guidance, and probabilistic models — served to humans through a unified REST API, and to agents through hosted MCP servers that handle everything from onboarding to payment.
Install the onboarding MCP, then hand your agent this prompt:
Your first prompt
“Set me up with a Smarter Weather API key and configure the weather MCP.”
What no other weather API has
Dual hosted MCP servers
A 31-tool weather MCP for live forecasts, alerts, and model data — plus an onboarding MCP so your agent manages its own account.
Agent-first onboarding
Sign-up, key management, usage, and billing are all MCP tools with interactive MCP Apps widgets. The dashboard is optional.
Machine-readable everything
llms.txt, OpenAPI, MCP tool descriptors, and AGENTS.md are published and versioned — agents integrate from contracts, not prose.
Agentic payments (x402)
Agents with wallets pay per call in USDC on Base — no account, no API key. Discovery tools stay free.
The data underneath
One request to /v1/weather returns current conditions, hourly and daily forecasts, active alerts, radar metadata, and SPC outlooks — proprietary blending of NBM, HRRR, GFS, RTMA, and other NOAA models across the contiguous United States. Explore the REST API or the MCP tool reference.
Open source on GitHub
Browse the OpenAPI spec, the @smarterweather/mcp-weather and @smarterweather/mcp-onboarding packages, agent skills, and the public roadmap on our GitHub repository.