Kaixin001

Kaixin001 (开心网) is a Chinese social networking website launched in March 2008 by founder Cheng Bingao, a former senior executive at Sina. It rose to mass popularity in 2009-2010 on the back of viral social games such as "Friends for Sale" and "Parking Wars" before losing ground to Renren, Sina Weibo, and WeChat. After the parent company was acquired by a listed company in 2016, the founder departed and the business pivoted toward enterprise services and internet finance, marginalizing the original social network. Kaixin001 discontinued its Flash-based social gaming on November 18, 2023, and now persists mainly as a low-activity nostalgia platform. It surfaced in the API Evangelist network as a portfolio-lead stub of Qiming and exposes no current public developer program, API, or documentation surface.

Kaixin001 is profiled on the APIs.io network. Tagged areas include Company, Social, Social Networking, Social-Media, and China.

🌐 Visit website 📡 Source on GitHub
5.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
0 APIs
CompanySocialSocial NetworkingSocial-MediaChinaSocial GamingWeb 2.0Consumer Internet

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 5.0/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Access Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Contract Governance 0.0 / 12
Discoverability 5.0 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
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Resources

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: kaixin001
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kaixin001.png
name: Kaixin001
description: Kaixin001 (开心网) is a Chinese social networking website launched in March 2008 by founder Cheng Bingao, a former
  senior executive at Sina. It rose to mass popularity in 2009-2010 on the back of viral social games such as "Friends for
  Sale" and "Parking Wars" before losing ground to Renren, Sina Weibo, and WeChat. After the parent company was acquired by
  a listed company in 2016, the founder departed and the business pivoted toward enterprise services and internet finance,
  marginalizing the original social network. Kaixin001 discontinued its Flash-based social gaming on November 18, 2023, and
  now persists mainly as a low-activity nostalgia platform. It surfaced in the API Evangelist network as a portfolio-lead
  stub of Qiming and exposes no current public developer program, API, or documentation surface.
url: https://raw.githubusercontent.com/api-evangelist/kaixin001/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- qiming
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct-social-network
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Social
- Social Networking
- Social-Media
- China
- Social Gaming
- Web 2.0
- Consumer Internet
tags_raw:
- Company
- Social
- Social Networking
- Social Media
- China
- Social Gaming
- Web 2.0
- Consumer Internet
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.kaixin001.com
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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