I'm a fairly new user to QGIS. I've used OpenStreetMap to geocode small data sets (30-ish points) with no problems. Now I'm trying to plot 1100 points. I've loaded up a basemap and a polygon layer, formatted my CSV with location data (address, city, state), but when I try to use the 'Web Service Geocode' tool as I have in the past (see below image), I get the following error: Failure connecting to API: HTTP Error 502: Bad Gateway

I was under the impression I didn't need an API key for OSM, but maybe I'm wrong?

Geocoding input


If you are using Nominatim (as it seems that you are), its usage policy applies, mentioning things like "an absolute maximum of 1 request per second".

  • thanks for your reply - that's useful info. I tried it with a smaller chunk of the data set and it worked just fine, so perhaps there's some upper limit I'm not aware of. it seems odd to me that there would be a maximum of 1 request per second, as you mention, without them mentioning a max number of points, say. either way, I think you're probably right. thanks again! – Gavin Dec 4 '20 at 21:37

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