API's updated to version 2.92
The web service API's have been upgraded to version 2.92. Users should migrate their code to use these new versions.
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API's updated to version 2.91
All USC WebGIS API's have been updated to version 2.91. Please begin updating your scripts if you are using previous versions.
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API's updated to version 2.9
All web service API's have been updated to 2.9. Users should update their web service calls to use this new version.
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Geocoding
Convert postal addresses into geographic coordinates using a state-of-the-art
research geocoding platform.
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Geocode Correction
Interactively correct the location of geocodes using a web-based map interface.
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Polygon Tracing
Interactively trace and store a database of geographic polygons using a web-based
map interface.
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Shortest Path
Calculate the shortest network path between two points based upon shortest distance or travel time.
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Usage Rules
Our services are provided free of charge in allotments of 2500 transactions. All we ask is that you cite us in your work and/or add a link to us on your website.
Details of our usage policy including how to obtain additional credits and non-throttled access to our services are available on this page. Please contact us if you need more information.
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(As of 11/24/2009 1:16:33 PM)
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Service
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Usages
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AddressNormalization
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648,440
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AddressValidation
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1,512
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CensusIntersection
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28,478
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Geocoding
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10,397,981
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GeocodingCorrection
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4,766
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PolygonTracing
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5,294
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ShortestPath
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505,388
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