Klout

aid: klout
name: Klout
description: Klout was a San Francisco social-analytics company, founded in 2008 by Joe Fernandez and Binh Tran, that scored
  individuals on their online social influence. The "Klout Score" was a single number from 1 to 100 derived from the size
  of a person's social network and how other people engaged with the content they published across connected accounts such
  as Twitter, Facebook, LinkedIn, Instagram, and Google+. Klout operated a public REST API — the Klout API v2 at api.klout.com
  — that let developers resolve a social handle to a Klout identity, look up a user's score and score history, and retrieve
  influence graphs (who a user influences and is influenced by) and topic affinities; access was key-based and widely used
  by marketing, CRM, and social-listening tools, and a large community of third-party client libraries grew up around it in
  Ruby, Node.js, Python, and PHP. Lithium Technologies acquired Klout on 27 March 2014 for approximately $200 million. Lithium
  retired Klout as a standalone service on 25 May 2018 — the day the EU General Data Protection Regulation took effect — stating
  that Klout's AI and machine-learning capabilities were valuable to Lithium but the consumer service was not aligned with
  its long-term strategy. The Klout API was shut down with the service. Lithium has since been rebranded as Khoros, and klout.com
  now redirects into the Khoros website. The company is defunct and operates no live API; this profile is retained as a historical
  provider record in the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/klout/refs/heads/main/apis.yml
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://avatars.githubusercontent.com/u/8203?v=4
x-type: company
x-source: vc-portfolio
x-backed-by:
- kleiner-perkins
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
x-status-reason: Klout was retired as a standalone service by Lithium Technologies on 2018-05-25; the Klout API v2 (api.klout.com)
  was shut down with it. api.klout.com and developer.klout.com no longer resolve, and klout.com redirects to the Khoros website.
x-acquired-by: khoros
x-acquired-date: '2014-03-27'
x-defunct-date: '2018-05-25'
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Consumer
- Social-Media
- Social Analytics
- Influence Scoring
- Social Scoring
- Marketing
- Reputation
- Defunct
- Acquired
tags_raw:
- Company
- Consumer
- Social Media
- Social Analytics
- Influence Scoring
- Social Scoring
- Marketing
- Reputation
- Defunct
- Acquired
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://klout.com
- type: Acquirer
  url: https://khoros.com
- type: GitHubOrganization
  url: https://github.com/klout
- type: ArchivedSite
  url: https://web.archive.org/web/*/klout.com
- type: Packages
  url: packages/klout-packages.yml
- type: Lifecycle
  url: lifecycle/klout-lifecycle.yml
- type: DomainSecurity
  url: security/klout-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence