Sundae

Sundae is a residential real estate marketplace that buys homes directly from homeowners for cash and resells them to a vetted network of property investors. Sellers get a competitive as-is cash offer with no repairs, showings, or fees, flexible closings in as little as 10 days, and an optional cash advance before closing; investors access off-market and distressed properties through the Sundae Marketplace. Backed by QED Investors, Sundae operates a consumer-facing website, an investor marketplace, and an agent referral program. It is a proptech/fintech company and, as of this enrichment pass, publishes no public developer API, documentation, or SDK surface.

Sundae is profiled on the APIs.io network. Tagged areas include Company, Fintech, Real Estate, Proptech, and Marketplace.

Sundae’s developer surface includes engineering blog and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
11.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyFintechReal EstateProptechMarketplaceHomebuyingInvestors

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 11.4/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · 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 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/sundae: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Sundae Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

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 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: sundae
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/sundae.png
name: Sundae
description: Sundae is a residential real estate marketplace that buys homes directly from homeowners for cash and resells
  them to a vetted network of property investors. Sellers get a competitive as-is cash offer with no repairs, showings, or
  fees, flexible closings in as little as 10 days, and an optional cash advance before closing; investors access off-market
  and distressed properties through the Sundae Marketplace. Backed by QED Investors, Sundae operates a consumer-facing website,
  an investor marketplace, and an agent referral program. It is a proptech/fintech company and, as of this enrichment pass,
  publishes no public developer API, documentation, or SDK surface.
url: https://raw.githubusercontent.com/api-evangelist/sundae/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- qed-investors
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Fintech
- Real Estate
- Proptech
- Marketplace
- Homebuying
- Investors
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://sundae.com
- type: Blog
  url: https://sundae.com/blog/
- type: TermsOfService
  url: https://sundae.com/terms-of-service/
- type: PrivacyPolicy
  url: https://sundae.com/privacy-policy/
- type: DomainSecurity
  url: security/sundae-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1