Google would not allow this, but Mapbox seems to be OK with this, if it is used for non-commercial purposes or OSM, and only if their satellite data is used (no

Google would not allow this, but Mapbox seems to be OK with this, if it is used for non-commercial purposes or OSM, and only if their satellite data is used (not their vector data): 1.6. No Tracing, Deriving, or Extracting. Customer shall not trace or otherwise derive or extract content, data and/or information from the Service Offerings except that Customer may use Studio or third-party software to trace Mapbox Maps solely comprised of satellite imagery to produce derivative vector datasets (i) for non-commercial purposes or (ii) for OpenStreetMap. Kind of nice from them.