opengolfapi
Fiscal Host: Open Source Collective
The open database of every golf course in America. Community-maintained. ODbL licensed.
Today's Balance
$33.94
Estimated Annual Budget
$140
Contribute
Become a financial contributor.
Financial Contributions
Top financial contributors
1
Guest
$20 USD since May 2026
Chris
$20 USD since Jun 2026
opengolfapi is all of us
Our contributors 3
Thank you for supporting opengolfapi.
Budget
Transparent and open finances.
+$10.00USD
Completed
Contribution #962134
+$10.00USD
Completed
Contribution #962134
Credit from Guest to opengolfapi •
+$20.00USD
Completed
Contribution #953540
$
Today’s balance$33.94 USD
Total raised
$33.94 USD
Total disbursed
--.-- USD
Estimated annual budget
$140.00 USD
Connect
Let’s get the ball rolling!
News from opengolfapi
Updates on our activities and progress.
Building in public — here's what we shipped this week
This is our first real update since launching OpenGolfAPI. A lot happened fast — here's where we are. What's live right now: - 15,667 US golf courses with dedicated pages at courses.opengolfapi.org - Every course page has an interactive Ope...
Published on April 18, 2026 by opengolfapi
Launching OpenGolfAPI — 17,000 US golf courses, free and open
Today we're publicly launching OpenGolfAPI — the free, open database of every golf course in America. What we built: - 16,908 courses with GPS coordinates, scorecards, contact info, course type, architect, year built - Per-hole par + handic...
Published on April 16, 2026 by opengolfapi
About
OpenGolfAPI is a community-maintained database of 15,667 US golf courses — every
course with a page, a map, a scorecard, and an API endpoint.
We believe golf course data should be open. Not locked behind paywalls. Not gatekept
by one company. Open for developers to build on, open for course owners to keep
current, and open for golfers to rely on.
What we maintain:
- 15,667 course pages with interactive OpenStreetMap maps, scorecards, tee data,
climate info, and nearby amenities
- A REST API that anyone can query — no signup, no API key, no limits on what data you
can access
- An MCP server so AI agents (Claude, ChatGPT, Gemini) can look up any course in the
country
- Weekly dataset releases in GeoJSON, CSV, and NDJSON under ODbL — the same license as
OpenStreetMap
- A wiki-style editing system where anyone can fix wrong data and course owners can
claim their pages
What donations pay for:
- Supabase database hosting ($25/month)
- Domain renewal ($10/year)
- Cloudflare Workers and Pages (currently free tier — will need paid plan as traffic
grows)
- Data enrichment costs (geocoding, climate data refresh, scorecard updates)
- Time spent reviewing community edits and responding to data quality reports
Every dollar is tracked transparently on this page. We have no employees, no
investors, and no paid tier. Just open data maintained by people who think golf course
information should be accessible to everyone.
Built by Julian Pretto. Powered by OpenStreetMap, NOAA, Nominatim, and thousands of
public course websites.
course with a page, a map, a scorecard, and an API endpoint.
We believe golf course data should be open. Not locked behind paywalls. Not gatekept
by one company. Open for developers to build on, open for course owners to keep
current, and open for golfers to rely on.
What we maintain:
- 15,667 course pages with interactive OpenStreetMap maps, scorecards, tee data,
climate info, and nearby amenities
- A REST API that anyone can query — no signup, no API key, no limits on what data you
can access
- An MCP server so AI agents (Claude, ChatGPT, Gemini) can look up any course in the
country
- Weekly dataset releases in GeoJSON, CSV, and NDJSON under ODbL — the same license as
OpenStreetMap
- A wiki-style editing system where anyone can fix wrong data and course owners can
claim their pages
What donations pay for:
- Supabase database hosting ($25/month)
- Domain renewal ($10/year)
- Cloudflare Workers and Pages (currently free tier — will need paid plan as traffic
grows)
- Data enrichment costs (geocoding, climate data refresh, scorecard updates)
- Time spent reviewing community edits and responding to data quality reports
Every dollar is tracked transparently on this page. We have no employees, no
investors, and no paid tier. Just open data maintained by people who think golf course
information should be accessible to everyone.
Built by Julian Pretto. Powered by OpenStreetMap, NOAA, Nominatim, and thousands of
public course websites.
Our team
opengolfapi
Admin