99.co

99.co (99 Group) is a Singapore-headquartered real estate technology company and one of the largest property marketplaces in Southeast Asia. Founded in 2014 by Darius Cheung, Yan Phun and Conor McLaughlin, it operates consumer property portals across Singapore and Indonesia, including 99.co and SRX.com.sg in Singapore and 99.co/id and Rumah123.com in Indonesia. The platform lets buyers, renters and agents search HDB resale flats, executive condos, condominiums, landed homes and new-launch projects for sale and rent, with map-based search, transaction data, agent directories, mortgage tools and nearby-amenity insights (MRT, schools, commute times). 99 Group is backed by investors including Sequoia Capital, 500 Global, Golden Gate Ventures, Quest Ventures and East Ventures. This profile was surfaced as a 500 Global portfolio company and enriched by the API Evangelist pipeline; 99.co exposes consumer web products but publishes no first-party public developer API or portal at this time.

99.co is profiled on the APIs.io network. Tagged areas include Company, Real-Estate, PropTech, Property Listings, and Real Estate Marketplace.

99.co’s developer surface includes engineering blog and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
10.0/100 minimal ▬ flat Agent 0/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
0 APIs
CompanyReal-EstatePropTechProperty ListingsReal Estate MarketplaceProperty SearchSingaporeIndonesiaHousing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 10.0/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.5 / 20
Access Clarity 4.2 / 20
Operational Transparency 0.3 / 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.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/99co: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

99Co Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 4

The organization behind the API

Website
Website
 About
About
 Blog
Blog
 Careers
Careers

Source (apis.yml)

apis.yml Raw ↑ 
aid: 99co
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  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/99co.png
name: 99.co
description: 99.co (99 Group) is a Singapore-headquartered real estate technology company and one of the largest property
  marketplaces in Southeast Asia. Founded in 2014 by Darius Cheung, Yan Phun and Conor McLaughlin, it operates consumer property
  portals across Singapore and Indonesia, including 99.co and SRX.com.sg in Singapore and 99.co/id and Rumah123.com in Indonesia.
  The platform lets buyers, renters and agents search HDB resale flats, executive condos, condominiums, landed homes and new-launch
  projects for sale and rent, with map-based search, transaction data, agent directories, mortgage tools and nearby-amenity
  insights (MRT, schools, commute times). 99 Group is backed by investors including Sequoia Capital, 500 Global, Golden Gate
  Ventures, Quest Ventures and East Ventures. This profile was surfaced as a 500 Global portfolio company and enriched by
  the API Evangelist pipeline; 99.co exposes consumer web products but publishes no first-party public developer API or portal
  at this time.
url: https://raw.githubusercontent.com/api-evangelist/99co/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Real-Estate
- PropTech
- Property Listings
- Real Estate Marketplace
- Property Search
- Singapore
- Indonesia
- Housing
tags_raw:
- Company
- Real Estate
- PropTech
- Property Listings
- Real Estate Marketplace
- Property Search
- Singapore
- Indonesia
- Housing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/99co-domain-security.yml
- type: Website
  url: https://99.co
- type: About
  url: https://www.99.co/about-us
- type: Blog
  url: https://www.99.co/singapore/insider/
- type: TermsOfService
  url: https://www.99.co/terms
- type: PrivacyPolicy
  url: https://www.99.co/privacy
- type: Careers
  url: https://careers.99.co/
- type: GitHubOrganization
  url: https://github.com/team99
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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