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Developer Tools and Data Mining Resources


Welcome to Prosper Developer Tools


Prosper provides developers tools to build upon our platform. We provide a data rich download of all our public data for your analysis and a webservice API that provides realtime data access to both public and authenticated data. In the coming months we will make available a wealth of third party tools that build on these core technologies to make bidding, listing, and group management easier and more powerful.


Prosper Developer Services allow users to acquire data from and interact with the Prosper Marketplace in two ways:

API


We provide a WSDL based web-service that can be called to get public information about the Prosper Marketplace. It allows ad-hoc querying of the Prosper Marketplace so you can develop richer more powerful tools for investing, listing and portfolio analysis than the Prosper Marketplace web interface can provide.

Imagine tracking Prosper Marketplace performance to other indices, for example the S&P 500, LIBOR, or the surf conditions at Ocean Beach. You don't think it correlates? Try it and find out.

Authenticated Webservice API


In addition, the webservice also provides extended credit and lender specific data via an authenticated API. For the initial release this includes extended credit fields on the Listing object and a new LenderLoan object.

Click here to get started with the API


Data Export


We provide a complete snapshot of all listings, bids, user profiles, groups and loans ever created on Prosper. This snapshot is updated nightly. We provide this data in a raw XML format. Additionally, we will also provide the tools to import the XML data into the database of your choice (e.g. SQLServer, MySQL, Access, etc.)

This is a very powerful resource to both developers as well anyone familiar with Microsoft Excel. Consider the possibilities. You can:

  • Build graphs and trends of listing rates
  • Use bidding patterns to determine the best lending strategies
  • Compare groups using your own research
  • Create a loan portfolio analysis tool
  • Monitor changes to the marketplace over time
  • Explore our dynamic marketplace offline using your own tools 

Extended credit and loan performance via private downloadNew!

In addition, for authenticated lenders an additional download is available. This private data download (XML) offer 2 additional data objects CreditProfile and LoanPerformance for access to the extended credit profile and individual loan performance. This data is explicity prohibited from row level publication and distribution.

Whether you're considering using Prosper for an academic research paper, loan analysis, or creating a start-up of your own using Prosper, we welcome your participation. Use the data export as a great place to start. It's available now and if you sign up for the mailing list we'll try to answer any technical questions or issues you may have.

Click here to get started with the Data Export


All API Services are subject to the API Terms of Use.


ProsperAPI Open Source ProjectNew!


We are incubating an open source project to handle all aspects of coding to the Prosper API. All members of the community are encouraged to join and contribute. ProsperAPI on SourceForge