freeapis

RainViewer

Radar data collected from different websites across the Internet

Authentication
No auth
HTTPS
Yes
CORS
Unknown
Category
Weather
Data source
public-apis + marcelscruz

Overview

RainViewer is a free public API in the Weather category. Radar data collected from different websites across the Internet.

Weather APIs are a staple of free developer tooling — they power dashboards, travel planners, home-automation triggers, and IoT projects.

You can use this API in prototypes, side projects, and production applications — just keep the provider’s usage policy in mind.

Authentication

RainViewer requires no authentication — you can start calling it directly, which makes it great for quick experiments and client-side demos.

HTTPS & CORS

  • HTTPS: supported — traffic to RainViewer is encrypted, so it is safe to use from production apps.
  • CORS: unknown — if you plan to call RainViewer from the browser, verify CORS support in the official docs or with a quick test request.

Getting Started

  1. Read the official documentation: https://www.rainviewer.com/api.html
  2. Make a test request with curl or your favourite HTTP client.

Rate Limits & Notes

  • Rate limits, quotas, and free-tier terms are defined by the provider — always check the official documentation for RainViewer before scaling up.
  • The upstream listing is community-maintained; fields like auth, HTTPS and CORS reflect the state at listing time and may change.

FAQ

Does RainViewer require an API key?

No — RainViewer is listed as a no-auth API, so you can call it directly.

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