If you would like to add fictional data to the OSM dataset itself, itself - by editing the map on openstreetmaps.org (osm.org) - then that is not allowed. See the [How We Map page on the Wiki][1]: > Contributions to OpenStreetMap should be: > > - Verifiable - means that others can go there and see for themselves if your data is correct. Of course, you can always create derivative works if you fulfill the [license requirements][2], or if your only goal is to mark a few spots on a map you can use 3rd party services or libraries (like [Leaflet][3]) to display markers or shapes over the map. [1]: https://wiki.openstreetmap.org/wiki/How_We_Map [2]: https://www.openstreetmap.org/copyright [3]: https://leafletjs.com/examples/quick-start/

If you would like to add fictional data to the OSM dataset itself, by editing the map on openstreetmaps.org (osm.org) then that is not allowed. See the [How We Map page on the Wiki][1]: > Contributions to OpenStreetMap should be: > > - Verifiable - means that others can go there and see for themselves if your data is correct. Of course, you can always create derivative works if you fulfill the [license requirements][2], or if your only goal is to mark a few spots on a map you can use 3rd party services or libraries (like [Leaflet][3]) to display markers or shapes over the map. [1]: https://wiki.openstreetmap.org/wiki/How_We_Map [2]: https://www.openstreetmap.org/copyright [3]: https://leafletjs.com/examples/quick-start/https://leafletjs.com/examples/quick-start/

If you would like to add fictional data to the OSM dataset itself, by editing the map on openstreetmaps.org (osm.org) then that is not allowed. See the [How We Map page on the Wiki][1]: > Contributions to OpenStreetMap should be: > - Verifiable - means that others can go there and see for themselves if your data is correct. Of course, you can always create derivative works if you fulfill the [license requirements][2], or if your only goal is to mark a few spots on a map you can use 3rd party services or libraries (like [Leaflet][3]) to display markers or shapes over the map. [1]: https://wiki.openstreetmap.org/wiki/How_We_Map [2]: https://www.openstreetmap.org/copyright [3]: https://leafletjs.com/examples/quick-start/