Welcome to the Klout Developer Network!

1. Register for a user account and API key.
2. Browse the documentation.
3. Join a discussion in the forums.
4. Check out our API-At-A-Glance!

Klout makes the following information available to or dev ecosystem:

• Klout Score - The Klout Score is the measurement of your overall online influence. The scores range from 1-100 with higher scores representing a wider and stronger sphere of influence.
• Network Influence - Network Influence is the influence level of your engaged audience. Capturing the attention of influencers is no easy task, and those who are able to do so are typically creating spectacular content.
• Amplification Probability -  Amplification Probability is the likelihood that your content will be acted upon. The ability to create content that compels others to respond and high-velocity content that spreads into networks beyond your own is a key component of influence.
• True Reach - True Reach is the size of your engaged audience. We eliminate inactive and spam accounts, and only include accounts that you influence.
• Influential About - The topics you are most influential about based not on what you talk about the most but on the subjects you get the most engagement on. 
• Influencer Of/Influenced By: These are the people who you influence and who you are influenced by based on social actions. 

For more more info on our scoring check out "What is the Klout Score?"

See below for some of the ways our partners our leveraging Klout data. 

• Social Media Management
  • Sort incoming messages based on Klout score
  • See how influential fans are
  • Chart how influential the overall audience is
  • Examples: Cotweet, Hootsuite, and Tap 11
• Social Search
  • Surface the most relevant people associated to any search term
  • Sort based on influence
  • Examples: LiveIntent and Tweetup
• CRM and Lead generation
  • Find how influential customers and potential leads are
  • Find influencers on relevant topics
  • Examples: Rapportive and Flowtown