Use the Social Actions Open API to search the SocialActions.com database of volunteer and philanthropy opportunities, called social actions, useful for those interested in peer-to-peer social change. The database aggregates the opportunities of over 20 organizations, and the results include the title, description, location, action type, and source URL of the opportunity. Some of the organizations that are aggregated are Democracy in Action, MicroGiving, VolunteerMatch, and Helpalot. You can narrow your request by any of the following action types: Group Fundraiser, Campaign, Pledged action, Event, Affinity group, Volunteer, Micro-credit loan, or Petition.
Developer's interested in giving back to the community should check out All for Good's new API (our All for Good API Profile). If you are not familiar with All for Good, it is a new service that lets you browse volunteer activities and find events based on your location or interests.
Social Actions takes actions posted on the web from more than forty different socially progressive organizations, and aggregates them into a common format for easy discovery. The actions are concrete activities like volunteering, donating, signing a petition, making a loan, or attending a meetup, all in the service of "making a difference" for issues like Darfur, cancer, LGBT, prison reform, and other activist concerns. On the Social Actions site interested citizens can search the opportunities, and an API (our Social Actions API profile) allows developers to build on top of the stream of postings.