Zillow Group is a leading real estate and rental marketplace that aims to make the process of buying, selling, and renting homes more streamlined and efficient. The company offers a wide range of services, including an online platform where users can search for properties, view listings, and connect with real estate agents. Zillow Group also provides tools and resources for homeowners, such as Zestimate, an automated valuation model that estimates the market value of a property.
Zillow Group publishes 17 APIs on the APIs.io network. Tagged areas include Real-Estate, Property Data, MLS, Mortgage, and Rentals.
The Zillow Group catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Zillow Group’s developer surface includes engineering blog, documentation, API reference, authentication, support, and 17 more developer resources.
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this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
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several others — scorable at all.
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RESTful JSON API returning Zillow property, rental and foreclosure Zestimates for approximately 100 million US properties. Zillow Group documents it on its own developer portal ...
RESTful JSON API over parcel, assessment and transaction records covering roughly 148 million properties across about 3,200 US counties, with around 15 years of history. Documen...
RESTful JSON listing API serving MLS and broker data normalized to the RESO Data Dictionary standard. Documented by Zillow Group and served through the Bridge platform, a Zillow...
Self-serve API for MLS and broker partners to be notified when a prospect creates a review, retrieve prospect reviews in bulk, and respond to them. Access tokens are issued from...
Web-service API returning Zillow agent review data as JSON from URI query-string requests, authenticated with an API key issued on the Bridge dashboard. Governed by the Zillow D...
Read-only mortgage pricing API from Mortech, a Zillow Group company, allowing online lead generators to submit loan criteria over HTTP POST and receive lender pricing back as JS...
Read/write API from Mortech, a Zillow Group company, for sending and receiving updates on pricing activity for every prospect in the Mortech system. Requests are HTTP POST and r...
Mortech prospect trigger API, part of the Zillow Group mortgage developer program alongside Prospect Sync and Rate Cloud. Access is requested through the Zillow Group developer ...
Read/write API from Mortech, a Zillow Group company, allowing partners to submit prospect information for pricing and lead routing. Requests are HTTP POST and responses are XML,...
Integration API from Mortech, a Zillow Group company, for connecting loan origination systems to Mortech pricing. Listed on the Zillow Group mortgage developer program with a re...
API for accessing Zillow lender review data, listed under the Zillow Group mortgage developer program. Access is requested through the Zillow Group developer portal; no base URL...
API for retrieving current mortgage rate data, listed under the Zillow Group mortgage developer program. Access is requested through the Zillow Group developer portal; no base U...
Outbound webhook API that delivers Zillow Rentals lead information to a customer-supplied endpoint as URL-encoded HTTP POST callbacks. Zillow Group states the data format is fix...
Rental listing feed ingestion for property managers and rental software partners, documented under the Zillow Group rentals developer program. A feed-delivery integration rather...
Zillow housing market metrics - median home values, rents and inventory - published from the national level down to the neighborhood level. Despite being listed as an API on the...
Aggregate neighborhood-level housing statistics from Zillow, listed on the Zillow Group developer portal but delivered as free CSV downloads through the Zillow Research data por...
aid: zillow-group
url: https://raw.githubusercontent.com/api-evangelist/zillow-group/refs/heads/main/apis.yml
common:
- type: Website
url: https://www.zillowgroup.com/
- type: DomainSecurity
url: security/zillow-group-domain-security.yml
- type: GitHubOrganization
url: https://github.com/zillow
- type: LinkedIn
url: https://www.linkedin.com/company/zillow-group
- url: https://www.zillowgroup.com/feed/
type: Blog
- type: DeveloperPortal
url: https://www.zillowgroup.com/developers/
- type: Documentation
url: https://www.zillowgroup.com/developers/
- type: APIReference
url: https://bridgedataoutput.com/docs/platform
- type: Authentication
url: authentication/zillow-group-authentication.yml
- type: Conventions
url: conventions/zillow-group-conventions.yml
- type: Conformance
url: conformance/zillow-group-conformance.yml
- type: Lifecycle
url: lifecycle/zillow-group-lifecycle.yml
- type: Packages
url: packages/zillow-group-packages.yml
- type: Plans
url: plans/zillow-group-plans-pricing.yml
- type: RateLimits
url: rate-limits/zillow-group-rate-limits.yml
- type: Webhooks
url: asyncapi/zillow-group-webhooks.yml
- type: LLMsTxt
url: llms/zillow-group-llms.txt
- type: VulnerabilityDisclosure
url: security/zillow-group-vulnerability-disclosure.yml
- type: Security
url: https://www.zillow.com/corporate/security-disclosure/
- type: TermsOfService
url: https://www.zillow.com/corporate/terms-of-use/
- type: PrivacyPolicy
url: https://www.zillow.com/corporate/zg-privacy-notice/
- type: Support
url: https://help.zillowrentalmanager.com/hc/en-us
apis:
- aid: zillow-group:zestimates-api
name: Zillow Zestimate API
description: RESTful JSON API returning Zillow property, rental and foreclosure Zestimates for approximately 100 million
US properties. Zillow Group documents it on its own developer portal and routes the reference and access-token issuance
to the Bridge platform, a Zillow Group company, which is why the base host is bridgedataoutput.com rather than a zillow.com
host. Access is invite-only through the Zillow Group Datasets agreement.
humanURL: https://www.zillowgroup.com/developers/api/zestimate/zestimates-api/
baseURL: https://api.bridgedataoutput.com/api/v2
tags:
- Valuation
- Property Data
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/zestimate/zestimates-api/
- type: APIReference
url: https://bridgedataoutput.com/docs/platform/#zestimates
- aid: zillow-group:public-records-api
name: Zillow Public Records API
description: RESTful JSON API over parcel, assessment and transaction records covering roughly 148 million properties across
about 3,200 US counties, with around 15 years of history. Documented by Zillow Group and served through the Bridge platform,
a Zillow Group company. Invite-only, commercial use; academic users are directed to the free Zillow Research CSV downloads
instead.
humanURL: https://www.zillowgroup.com/developers/api/public-data/public-records-api/
baseURL: https://api.bridgedataoutput.com/api/v2
tags:
- Public Records
- Property Data
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/public-data/public-records-api/
- type: APIReference
url: https://bridgedataoutput.com/docs/platform/#parcels
- aid: zillow-group:mls-listings-api
name: Zillow Group MLS Listings API
description: RESTful JSON listing API serving MLS and broker data normalized to the RESO Data Dictionary standard. Documented
by Zillow Group and served through the Bridge platform, a Zillow Group company. Access is invitation-only and granted
by Zillow Group MLS partners in the US and Canada at their discretion.
humanURL: https://www.zillowgroup.com/developers/api/mls-broker-data/mls-listings/
baseURL: https://api.bridgedataoutput.com/api/v2
tags:
- MLS
- Listings
- RESO
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mls-broker-data/mls-listings/
- type: APIReference
url: https://bridgedataoutput.com/docs/platform
- type: Documentation
url: https://bridgedataoutput.com/docs/explorer/reso-web-api
- aid: zillow-group:reviews-api
name: Zillow Reviews API
description: Self-serve API for MLS and broker partners to be notified when a prospect creates a review, retrieve prospect
reviews in bulk, and respond to them. Access tokens are issued from the Bridge dashboard under Data Access > API Access
Tokens. Zillow Group states it is unable to assist with implementation questions for this API.
humanURL: https://www.zillowgroup.com/developers/api/mls-broker-data/reviews-api/
baseURL: https://api.bridgedataoutput.com/api/v2
tags:
- Reviews
- Agents
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mls-broker-data/reviews-api/
- type: APIReference
url: https://bridgedataoutput.com/docs/platform
- type: SignUp
url: https://bridgedataoutput.com/register
- aid: zillow-group:agent-reviews-api
name: Zillow Agent Reviews API
description: Web-service API returning Zillow agent review data as JSON from URI query-string requests, authenticated with
an API key issued on the Bridge dashboard. Governed by the Zillow Data Terms of Use with branding requirements attached
to display of the reviews.
humanURL: https://www.zillowgroup.com/developers/api/agents/agent-reviews/
baseURL: https://api.bridgedataoutput.com/api/v2
tags:
- Reviews
- Agents
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/agents/agent-reviews/
- type: APIReference
url: https://bridgedataoutput.com/docs/platform/API/zg-data#agent-reviews
- aid: zillow-group:rate-cloud-api
name: Mortech Rate Cloud API
description: Read-only mortgage pricing API from Mortech, a Zillow Group company, allowing online lead generators to submit
loan criteria over HTTP POST and receive lender pricing back as JSON. Authenticated with a third-party name and license
key under a Partner/MSA agreement. Zillow Group publishes no base URL for this API.
humanURL: https://www.zillowgroup.com/developers/api/mortgage/rate-cloud-api/
tags:
- Mortgage
- Rates
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mortgage/rate-cloud-api/
- aid: zillow-group:prospect-sync-api
name: Mortech Prospect Sync API
description: Read/write API from Mortech, a Zillow Group company, for sending and receiving updates on pricing activity
for every prospect in the Mortech system. Requests are HTTP POST and responses are XML, authenticated with a third-party
name and license key under a Partner/MSA agreement. No base URL is published.
humanURL: https://www.zillowgroup.com/developers/api/mortgage/prospect-sync-api/
tags:
- Mortgage
- Leads
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mortgage/prospect-sync-api/
- aid: zillow-group:prospect-trigger-api
name: Mortech Prospect Trigger API
description: Mortech prospect trigger API, part of the Zillow Group mortgage developer program alongside Prospect Sync and
Rate Cloud. Access is requested through the Zillow Group developer portal under a Partner/MSA agreement; no base URL or
reference documentation is published publicly.
humanURL: https://www.zillowgroup.com/developers/api/mortgage/prospect-trigger-api/
tags:
- Mortgage
- Leads
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mortgage/prospect-trigger-api/
- aid: zillow-group:lead-posting-api
name: Mortech Lead Posting API
description: Read/write API from Mortech, a Zillow Group company, allowing partners to submit prospect information for pricing
and lead routing. Requests are HTTP POST and responses are XML, authenticated with a third-party name and license key.
No reversal, cancellation or deduplication mechanism is documented for a submitted lead.
humanURL: https://www.zillowgroup.com/developers/api/mortgage/lead-posting-api/
tags:
- Mortgage
- Leads
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mortgage/lead-posting-api/
- aid: zillow-group:los-plug-in-integration-api
name: Mortech LOS Plug-In Integration API
description: Integration API from Mortech, a Zillow Group company, for connecting loan origination systems to Mortech pricing.
Listed on the Zillow Group mortgage developer program with a request-access form; no base URL or public reference is published.
humanURL: https://www.zillowgroup.com/developers/api/mortgage/los-plug-in-integration-api/
tags:
- Mortgage
- Integration
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mortgage/los-plug-in-integration-api/
- aid: zillow-group:lender-reviews-api
name: Zillow Lender Reviews API
description: API for accessing Zillow lender review data, listed under the Zillow Group mortgage developer program. Access
is requested through the Zillow Group developer portal; no base URL or public reference documentation is published.
humanURL: https://www.zillowgroup.com/developers/api/mortgage/zillow-lender-reviews/
tags:
- Mortgage
- Reviews
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mortgage/zillow-lender-reviews/
- aid: zillow-group:get-current-rates-api
name: Zillow Get Current Rates API
description: API for retrieving current mortgage rate data, listed under the Zillow Group mortgage developer program. Access
is requested through the Zillow Group developer portal; no base URL or public reference documentation is published.
humanURL: https://www.zillowgroup.com/developers/api/mortgage/get-current-rates/
tags:
- Mortgage
- Rates
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/mortgage/get-current-rates/
- aid: zillow-group:rentals-lead-api
name: Zillow Rentals Lead API
description: Outbound webhook API that delivers Zillow Rentals lead information to a customer-supplied endpoint as URL-encoded
HTTP POST callbacks. Zillow Group states the data format is fixed and that it cannot change API fields or the form. No
inbound authentication, callback signature or retry policy is documented, and the only integration guide is a PDF.
humanURL: https://www.zillowgroup.com/developers/api/rentals/lead-api/
tags:
- Rentals
- Leads
- Webhook
tags_raw:
- Rentals
- Leads
- Webhooks
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/rentals/lead-api/
- type: Documentation
url: https://s3.amazonaws.com/files.hotpads.com/+guides/Lead+API+Guide.pdf
- type: Webhooks
url: asyncapi/zillow-group-webhooks.yml
- type: Support
url: https://help.zillowrentalmanager.com/hc/en-us
- aid: zillow-group:rentals-feed-integrations
name: Zillow Rentals Feed Integrations
description: Rental listing feed ingestion for property managers and rental software partners, documented under the Zillow
Group rentals developer program. A feed-delivery integration rather than a keyed request/response API; onboarding runs
through rentalfeeds@zillow.com.
humanURL: https://www.zillowgroup.com/developers/api/rentals/rentals-feed-integrations/
tags:
- Rentals
- Listings
- Feeds
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/rentals/rentals-feed-integrations/
- aid: zillow-group:transaction-management-api
name: dotloop Transaction Management API
description: RESTful JSON CRUD API for real-estate transaction management - loops, loop details, folders, documents, participants,
tasks, activities, contacts and loop templates - secured with three-legged OAuth 2.0. Served by dotloop, a Zillow Group
company, on api-gateway.dotloop.com; Zillow Group lists it as one of its own developer APIs and links the dotloop reference
directly, which is why the base host differs from zillowgroup.com. The full contract is profiled separately in the dotloop
repo.
humanURL: https://www.zillowgroup.com/developers/api/transactions/transaction-management/
baseURL: https://api-gateway.dotloop.com/public/v2
tags:
- Transaction
- Documents
- E-Signature
tags_raw:
- Transactions
- Documents
- E-Signature
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/transactions/transaction-management/
- type: APIReference
url: https://dotloop.github.io/public-api/
- type: Webhooks
url: asyncapi/zillow-group-webhooks.yml
- type: SignUp
url: http://info.dotloop.com/developers
- aid: zillow-group:real-estate-metrics
name: Zillow Real Estate Metrics
description: 'Zillow housing market metrics - median home values, rents and inventory - published from the national level
down to the neighborhood level. Despite being listed as an API on the Zillow Group developer portal, the architectural
style Zillow Group states is Download and the format is CSV: it resolves to the free Zillow Research data portal rather
than a keyed endpoint.'
humanURL: https://www.zillowgroup.com/developers/api/public-data/real-estate-metrics/
tags:
- Housing Data
- Research
- Open Data
tags_raw:
- Housing Data
- Research
- Open Data
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/public-data/real-estate-metrics/
- type: Documentation
url: https://www.zillow.com/research/data/
- aid: zillow-group:neighborhood-data
name: Zillow Neighborhood Data
description: Aggregate neighborhood-level housing statistics from Zillow, listed on the Zillow Group developer portal but
delivered as free CSV downloads through the Zillow Research data portal rather than as a keyed API. No endpoint, authentication
or response schema is published.
humanURL: https://www.zillowgroup.com/developers/api/public-data/neighborhood-data/
tags:
- Housing Data
- Research
- Open Data
tags_raw:
- Housing Data
- Research
- Open Data
properties:
- type: Documentation
url: https://www.zillowgroup.com/developers/api/public-data/neighborhood-data/
- type: Documentation
url: https://www.zillow.com/research/data/
name: Zillow Group
tags:
- Real-Estate
- Property Data
- MLS
- Mortgage
- Rentals
- Valuation
- Housing Data
- Transaction Management
tags_raw:
- Real Estate
- Property Data
- MLS
- Mortgage
- Rentals
- Valuation
- Housing Data
- Transaction Management
type: Index
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: approval
trial: false
try_now: false
public: false
label: Requires approval
confidence: high
source:
- plans
- authentication
- url: https://www.zillowgroup.com/
status: 302
note: declared website redirects to https://www.zillow.com/news/ — a different registrable domain (zillowgroup.com ->
zillow.com), possible rename or acquisition (probed 2026-09-03, roadmap#169)
generated: '2026-08-28'
method: searched
note: Corrected 2026-08-28 from a derived 'Paid - Self-serve signup', which came from a 2026-05-04 finops/plans scaffold
rather than from Zillow Group. Every one of the seventeen APIs on https://www.zillowgroup.com/developers/ stands behind
a Request Access form or an invite-only data agreement, and no price, tier or free allowance is published for any of them,
so pricing is unknown and onboarding is approval. Re-running derive-access-model.py will revert this until the finops
scaffold is reconciled.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zillow-group.png
access: 3rd-Party
created: '2025-03-01'
modified: '2026-08-28'
position: Consuming
description: Zillow Group is a leading real estate and rental marketplace that aims to make the process of buying, selling,
and renting homes more streamlined and efficient. The company offers a wide range of services, including an online platform
where users can search for properties, view listings, and connect with real estate agents. Zillow Group also provides tools
and resources for homeowners, such as Zestimate, an automated valuation model that estimates the market value of a property.
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
specificationVersion: '0.23'
x-enrichment:
date: '2026-08-28'
status: enriched
artifacts_added: 10
pass: local-v1
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