Houzz

Houzz is a home renovation and design platform that connects homeowners with home professionals, products, and design inspiration, and operates Houzz Pro, an all-in-one business management SaaS for contractors and design professionals (3D floor plans, takeoffs, estimates, invoices, scheduling, CRM, and marketing). For commerce, Houzz runs a marketplace and exposes an official Seller/Vendor Commerce API (opened to third-party partners in 2016) that lets merchants sync product listings, inventory, pricing, and orders. API access is gated: sellers enable it under Settings > API in the Houzz dashboard or request it via sellerapi@houzz.com, then authenticate integrations with an App ID, Token, and User Name. Houzz does not publish a general-purpose public developer portal, OpenAPI spec, or first-party SDKs; integration is handled through the Seller/Vendor programs and Houzz Pro's pre-built integrations (QuickBooks, Zapier, Gmail, Google Calendar/Drive, Gusto).

Houzz is listed with 1 API on the APIs.io network. Tagged areas include Company, E-Commerce, Marketplace, Home Improvement, and Interior Design.

Houzz’s developer surface includes API reference, support, engineering blog, pricing, signup flow, authentication, and 6 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

21.5/100 emerging ▬ flat Agent 3/100 human only Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

Company E-Commerce Marketplace Home Improvement Interior Design Home Renovation Furniture Software-as-a-Service

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 21.5/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 7.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.9 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 26.2 — up to +14.8 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/houzz/apis.yml: open an issue on github.com/api-evangelist/houzz to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Houzz Seller & Vendor Commerce API

Official Houzz commerce API for third-party marketplace partners. Lets sellers and vendors sync product catalog/listings, update inventory levels and pricing, and retrieve and m...

Security Posture 2

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

Houzz Authentication

apiKey · 1 scheme

SECURITY

Houzz Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Source (apis.yml)

aid: houzz
name: Houzz
description: 'Houzz is a home renovation and design platform that connects homeowners with home professionals, products, and
  design inspiration, and operates Houzz Pro, an all-in-one business management SaaS for contractors and design professionals
  (3D floor plans, takeoffs, estimates, invoices, scheduling, CRM, and marketing). For commerce, Houzz runs a marketplace
  and exposes an official Seller/Vendor Commerce API (opened to third-party partners in 2016) that lets merchants sync product
  listings, inventory, pricing, and orders. API access is gated: sellers enable it under Settings > API in the Houzz dashboard
  or request it via sellerapi@houzz.com, then authenticate integrations with an App ID, Token, and User Name. Houzz does not
  publish a general-purpose public developer portal, OpenAPI spec, or first-party SDKs; integration is handled through the
  Seller/Vendor programs and Houzz Pro''s pre-built integrations (QuickBooks, Zapier, Gmail, Google Calendar/Drive, Gusto).'
url: https://raw.githubusercontent.com/api-evangelist/houzz/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bond-capital
- craft-ventures
- ggv-capital
- iconiq-capital
x-tier: stub
x-tier-reason: portfolio-lead
x-notes: Seller/Vendor Commerce API is official but partner-gated (no public OpenAPI or developer portal). Third-party unofficial
  wrappers exist (e.g. hanbiji/Houzz-Api) but are not first-party. No public /.well-known documents (all catch-all HTML).
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:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://st.hzcdn.com/static/apple-touch-icon-precomposed.png
tags:
- Company
- E-Commerce
- Marketplace
- Home Improvement
- Interior Design
- Home Renovation
- Furniture
- Software-as-a-Service
tags_raw:
- Company
- Ecommerce
- Marketplace
- Home Improvement
- Interior Design
- Home Renovation
- Furniture
- SaaS
apis:
- name: Houzz Seller & Vendor Commerce API
  description: Official Houzz commerce API for third-party marketplace partners. Lets sellers and vendors sync product catalog/listings,
    update inventory levels and pricing, and retrieve and manage orders. Access is gated (enable under Settings > API in the
    Houzz dashboard, or email sellerapi@houzz.com); integrations authenticate with an App ID, Token, and User Name. Houzz
    Vendor and Houzz Seller are distinct programs selected per integration.
  humanURL: https://help.houzz.com/s/topic/0TO44000000UgcMGAS/houzz-seller-api?language=en_US
  baseURL: https://api.houzz.com
  tags:
  - E-Commerce
  - Marketplace
  - Commerce
  tags_raw:
  - Ecommerce
  - Marketplace
  - Commerce
  properties:
  - type: Authentication
    url: authentication/houzz-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://blog.houzz.com/feed/
  type: BlogRSS
- type: Website
  url: https://houzz.com
- type: APIReference
  url: https://help.houzz.com/s/topic/0TO44000000UgcMGAS/houzz-seller-api?language=en_US
- type: Support
  url: https://help.houzz.com
- type: Blog
  url: https://www.houzz.com/magazine
- type: Pricing
  url: https://www.houzz.com/houzz-pro/pricing
- type: SignUp
  url: https://www.houzz.com/signup
- type: Login
  url: https://www.houzz.com/signin
- type: TermsOfService
  url: https://www.houzz.com/termsOfUse
- type: PrivacyPolicy
  url: https://www.houzz.com/privacyPolicy
- type: Authentication
  url: authentication/houzz-authentication.yml
- type: DomainSecurity
  url: security/houzz-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Houzz API — frequently asked questions

Does Houzz have an API?

Yes. APIs.io lists 1 API from Houzz, including Houzz Seller & Vendor Commerce API.

How do I authenticate with the Houzz API?

Houzz uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Houzz Authentication.

Is the Houzz API ready for AI agents?

Houzz has a Kin Score of 21.5 out of 100 (emerging) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-10-31.

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