aid: dapper
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/dapper.png
name: Dapper
description: 'Dapper was an advertising-technology and web-data company founded in 2006 by Jonathan Aizen
  and Eran Shir, seed-funded by Accel. It ran two surfaces: Dapper Ads, an intent-driven dynamic-ad product
  that pulled live product and inventory data from an advertiser''s own site into targeted creative without
  IT integration; and open.dapper.net (the "Dapp Factory" / Dapper: The Data Mapper), a hosted tool that
  turned any web page into structured feeds, web services and widgets — XML, RSS, JSON, YAML, CSV, iCalendar,
  Google Gadgets, Netvibes modules and image loops — effectively letting anyone "create an API for any site"
  before providers published their own. Dapper was acquired by Yahoo! in 2010 and both surfaces were shut
  down; dapper.net now resolves to Yahoo nameservers with no host, and open.dapper.net no longer resolves.
  There is no live API, developer portal, or documentation to enrich.'
url: https://raw.githubusercontent.com/api-evangelist/dapper/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
x-status: defunct
x-acquired-by: Yahoo!
x-acquired-year: 2010
x-tier: stub
x-tier-reason: defunct-no-api-surface
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Advertising
- AdTech
- Web Scraping
- Data Extraction
- Mashups
- Defunct
- Acquired
apis: []
common:
- type: InvestorProfile
  name: Accel portfolio profile
  url: https://www.accel.com/companies/dapper
- type: Archive
  name: dapper.net (archived 2010, site no longer live)
  url: https://web.archive.org/web/20100601000000/http://www.dapper.net/
- type: Archive
  name: open.dapper.net Dapp Factory (archived 2010, no longer live)
  url: https://web.archive.org/web/20100601000000/http://open.dapper.net/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 0
  pass: local-v1