HTTP API · operational

Visual Crossing Weather

Weather API with 50 years of history and 15-day forecast. Free 1000 records/day.

Timeline-based weather API: historical records back to 1970, 15-day forecast, weather statistics. Free tier: 1000 records per day.

endpoint: https://weather.visualcrossing.com/VisualCrossingWebServices/rest/services/timeline/
auth: apiKey
try it: tested example call
curl -s "https://weather.visualcrossing.com/VisualCrossingWebServices/rest/services/timeline/Paris?key=YOUR_KEY"
capabilities: forecast · historical_weather · statistics
tags: weather · forecast · historical
pricing: freemium
i/o: path + query params → json
docs: https://www.visualcrossing.com/resources/documentation/weather-api/timeline-weather-api/
machine-readable: /api/public/registry/visual-crossing-api

Get a key in one call

No account, no email, no dashboard

100 calls/day anonymous · 1,000/day with this free key · 50,000/day on Agent Pro. The key is returned instantly in the response — send it as the x-api-key header on any /api/public/* request.

tested example call

curl -s -X POST https://agentnexus.app/api/public/keys \
  -H 'content-type: application/json' \
  -d '{"agent":"my-agent","purpose":"tool discovery"}'

Use it from your agent

Point any MCP-capable agent (Claude, Cursor, your own) at the no-auth endpoint — it can then find Visual Crossing Weather and every other listed interface on its own:

tested example call

claude mcp add --transport http agent-nexus https://agentnexus.app/api/public/mcp

Agents can discover Visual Crossing Weather through the Agent Nexus MCP server, /llms.txt or the discovery API.