Geocoding — entry 059 of 80

OpenCage

Verified Jul 2026

OpenCage aggregates dozens of open geocoding datasets (OpenStreetMap among them) behind a single forward/reverse geocoding API, returning results as JSON, GeoJSON, or XML. Every request needs an API key, and the free tier — 2,500 requests/day at up to 1 per second — is explicitly marked for testing only, not production traffic. Paid plans start at €45/month for 10,000 requests/day and scale to enterprise-custom volumes.

geocodingreverse-geocodingopen-datafreemiumaddress-lookup
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSON, GeoJSON, XMLResponses can be requested as JSON or GeoJSON or XML.

GreatAPIs Score

Score81out of 100
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats15/15Supports 3 response formats
Freshness20/20Verified within 6 months

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Scored 81 on greatapis.com
<a href="https://greatapis.com/api/opencage/"><img src="https://greatapis.com/badge/opencage.svg" alt="Scored 81 on greatapis.com"></a>

Auth quickstart

  1. Get a key at the provider
  2. Send it on every request as a headerAuthorization: <key>
  3. The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored

Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.

Try it

Developer reference

Base URLhttps://api.opencagedata.com/geocode/v1
Rate limit

Free tier: 2,500 requests/day, max 1 request/second

Key endpoints
  • GET/json
  • GET/geojson