This page contains important information about account registration for the Prosper Developer platform. The audience is all existing and new Investor API developers.

Note: Partners wishing to register to use Prosper Borrower Services should contact Prosper Business Development to register at [email protected]

You’ll need to register your client from your API settings page on your account. If you are registering with Prosper as a third-party agent, wait until Prosper grants you that permission before registering your client.

Individual Investors

If you are an individual investor (You are making investments on your own Prosper account only):

  • Whether you’re an individual or institutional investor, sign in to your Prosper account on prosper.com and register your app at the following URL:
    https://www.prosper.com/oauth#/settings
  • When you register your app, Prosper will generate a client id and secret for you. You will use this client id and secret to make API calls.

If a Third Party Agent makes investments on your behalf
Watch for announcements from your Third Party Agent. They’ll be in touch with a link for you to grant them permission to access your Prosper account. Once you grant permission, you will continue to use their service uninterrupted.


 

Third Party Agents

If you are an agent who views and/or makes investments for other Prosper users:
Select your option below and follow the instructions to set up your account and register your app on Prosper.

Option 1: I already have an institutional account set up with Prosper, and I want to use that account to register my app.

Option 2: I don’t have an institutional account set up with Prosper, or I want to use a new account to register my app.

 


Option 1: I already have an institutional account set up with Prosper, and I want to use that account to register my app

If you already have an institutional account with Prosper:

  1. Send an email to [email protected] with the subject line: “Please grant third party role”
    In the body of the email, mention the email address(es) of the institutional account(s) already registered with Prosper.

    We’ll review your request and, if approved, grant you the appropriate permissions.

    Note: You can’t register your app or view/make investments for other investors until we grant you permission as a Third Party Agent. The approval process may take up to 3 business days after you submit your request to become a Third Party Agent.

  2. After hearing from us that your Third Party Agent permission has been granted, sign in to your Prosper account and register your app within your API settings here:
    https://www.prosper.com/oauth#/settings
     
    When you register your app, Prosper will generate a client id and secret for you. You’ll use your client id and secret to make API calls.
  3. Reach out to your investors and provide a link for them to grant your app access. You can locate information about this process in the Authentication Key flow in Authenticating with OAuth 2.0.

Option 2: I don’t have an institutional account set up with Prosper, or I want to use a new account to register my app

  1. Create an institutional account and identify yourself as a Third Party Agent.
    You must apply here:
    https://www.prosper.com/account/common/inst_register.aspx

    1. When registering, self-identify as a Third Party Agent by selecting that option under Investor type.
    2. Send an email to notify us that you registered at investorap[email protected]
      with the subject line: “Please grant new third party role”
      In the body of the email, mention the email address(es) of the institutional account(s) you registered with Prosper.

     
    We’ll review your request and, if approved, grant you the appropriate permissions.

    Note: You can’t register your app or view/make investments for other investors until we grant you permission as a Third Party Agent. The approval process may take up to 3 business days after you submit your request to become a Third Party Agent.

  2. After hearing from us that your Third Party Agent permission has been granted, sign in to your Prosper account and register your app within your API settings here:
    https://www.prosper.com/oauth#/settings
     
    When you register your app, Prosper will generate a client id and secret for you. You’ll use your client id and secret to make API calls.
  3. Reach out to your investors and provide a link for them to grant your app access. You can locate information about this process in the Authentication Key flow in Authenticating with OAuth 2.0.