OpenStreetMap Foundation

free

None (public instance), API Key (self-hosted)

✓ Available

OpenStreetMap / Nominatim

Maps · Geocoding · Open Source

OpenStreetMap with Nominatim geocoding service. Fully open-source geocoding, reverse geocoding, and address lookup.

Technical Specs

  • Pricing:Completely free, open-source data and services
  • Authentication:None (public instance), API Key (self-hosted)
  • Rate Limit:1 request/second (public), self-hosted unlimited
  • Sandbox Mode:✓ Available

Key Highlights

  • Completely free
  • Open-source
  • Self-hostable
  • Global coverage
  • Reverse geocoding

Required Access Documents

  • No setup requiredOptional
    Public API or self-host

Use Cases

  • Free Geocoding:Cost-effective address lookup
  • Open Data:Use editable OpenStreetMap data

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