freeapis

Purple Air

Real Time Air Quality Monitoring

Authentication
No auth
HTTPS
Yes
CORS
Unknown
Documentation / URL
https://www2.purpleair.com/

Overview

Purple Air provides air quality data — key-based in practice (a missing key returns 403, verified).

Quick Start

Sensors (replace YOUR_KEY):

curl "https://api.purpleair.com/v1/sensors?fields=name" \
  -H "X-API-Key: YOUR_KEY"
{ "api_version": "V1.2.2", "error": "ApiKeyMissingError" }

Authentication

  • Register at purpleair.com → API key.
  • Send it as the X-API-Key header (missing → 403, verified).

Rate Limits & Notes

  • Free tier with limits (check the docs).
  • Air quality sensors.

FAQ

Is Purple Air free? Free tier with limits; more is paid.

Why 403? An API key is required (verified) — register for one.

What’s the auth style? X-API-Key header.

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