Downjoy (当乐网)

Downjoy (当乐网, d.cn) is a Chinese mobile game distribution and community platform operated by Beijing Downjoy Information Technology Co., Ltd (北京当乐信息技术有限公司). The site offers mobile game downloads, gaming news and original editorial content, game-related video, community features, and game rankings and recommendations. Downjoy also runs an open platform at open.d.cn where game publishers and developers register, create and submit games, integrate the Downjoy SDK, and manage launch and updates. Surfaced as a portfolio company of Qiming Venture Partners and added to the API Evangelist network; enriched with verified public identity and infrastructure probes.

Downjoy (当乐网) is profiled on the APIs.io network. Tagged areas include Company, Mobile Games, Gaming, Game Distribution, and Developer Platform.

🌐 Visit website 📡 Source on GitHub

8.5/100 minimal ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyMobile GamesGamingGame DistributionDeveloper PlatformSDKChina

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 8.5/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.7 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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 4 / 4

Consent & Bot Identity 0 / 3

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Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: d
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/d.png
name: Downjoy (当乐网)
description: Downjoy (当乐网, d.cn) is a Chinese mobile game distribution and community platform operated by Beijing Downjoy
  Information Technology Co., Ltd (北京当乐信息技术有限公司). The site offers mobile game downloads, gaming news and original editorial
  content, game-related video, community features, and game rankings and recommendations. Downjoy also runs an open platform
  at open.d.cn where game publishers and developers register, create and submit games, integrate the Downjoy SDK, and manage
  launch and updates. Surfaced as a portfolio company of Qiming Venture Partners and added to the API Evangelist network;
  enriched with verified public identity and infrastructure probes.
url: https://raw.githubusercontent.com/api-evangelist/d/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- qiming
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Mobile Games
- Gaming
- Game Distribution
- Developer Platform
- SDK
- China
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/d-domain-security.yml
- type: WellKnown
  url: well-known/d-well-known.yml
- type: Website
  url: https://www.d.cn
- type: DeveloperPortal
  url: https://open.d.cn/
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence