![]() ![]() It's possible to work around that, by using time-based diffs, but this may be clumsy. Querying of OSM data history Overpass API doesn't offer changeset-based criteria. Overpass API is most useful when the amount of data needed is only a selection of the data available in the region. As a result, when you want to extract country-sized regions with all (or nearly all) data in it, it's better to use planet.osm mirrors for that. And the dynamically generated files from Overpass API typically take longer to generate and download than downloading existing static extracts of the same region. There is a mailing list for developers LimitationsĮvery service has its limitations, and so does Overpass API:ĭownloading big data As the size of an Overpass API query result is only known when the download is complete, it is impossible to give an ETA while downloading. The project is maintained by Roland Olbricht (mail: Contributions like bug reports or pull requests to the source code are welcome. You can install your own instance from the latest stable release or the git source code repository (latest version). OSM Help (outdated, use OSM Community instead) OSM Community (categories: General talk, Help & Support) In addition, only the IRC and OSM Help links are managed by the OSM community - the other sites are controlled by third parties. If you ask a question on a real-time help site such as IRC or Slack, then obviously you'll get an up to date answer. ![]() Missing features may have been implemented in the meantime, and workarounds may have been streamlined. Please note that old questions and old answers on these sites may be outdated. It is the recommended channel for introductory to expert level questions or more generally, if your question is interesting to a wider audience. There are several community sites providing help for Overpass API and overpass turbo related questions. e.g Taginfo, then it's the Overpass Turbo documentation (which includes a query wizard) that you actually want. The Overpass API documentation isn't searchable and won't actually help you much unless you are already very familiar with the Overpass API itself. Overpass API also provides permanent links.įirstly - note that Overpass Turbo is documented separately to the Overpass API itself. You can use the Overpass turbo frontend to create and display queries for the above-mentioned Overpass API instances. Queries to the Overpass API are in XML or Overpass QL form. Operational issues/questions/feedback? Please post a support ticket.Īn Overpass API endpoint is also available for Open Historical Map. Please notify us in advance if you intend to use our service in a large scale project. There are currently no requests limitations and we will try to keep this approach in the future.Ĥ servers with 20 cores, 256GB RAM, SSD eachįeel free to use our service in any project, there is no rate limit in place. The address and endpoint will continue to work and redirects per round robin to z and lz4.Ģ servers with 56 physical cores, 384Gb RAM, SSD eachįeel free to use our services in any project. You can safely assume that you don't disturb other users when you do less than 10,000 queries per day and download less than 5 GB data per day. You can use the public visible instances:Īny of the three servers has a total capacity of about 1,000,000 requests per day. To support small and well scaling OSM main services, Overpass API is run as a third party service. For legacy applications, there's also a compatibility layer to allow a smooth transition from XAPI. It is highly recommended to get familiar with various features via overpass turbo, an interactive Web-based frontend. There exists in addition a Overpass QL guide/language reference. Please see the full user's manual for a detailed introduction. It acts as a database backend for various services. location, type of objects, tag properties, proximity, or combinations of them. Unlike the main API, which is optimized for editing, Overpass API is optimized for data consumers that need a few elements within a glimpse or up to roughly 10 million elements in some minutes, both selected by search criteria like e.g. It acts as a database over the web: the client sends a query to the API and gets back the data set that corresponds to the query. The Overpass API (formerly known as OSM Server Side Scripting, or OSM3S before 2011) is a read-only API that serves up custom selected parts of the OSM map data. 8 Resource management options (osm-script). ![]()
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