Zillapi

Independent third-party provider of Zillow-sourced U.S. residential property data via a REST API, hosted MCP server, and agent skills. Returns ~300+ fields per property including price, Zestimate, rent Zestimate, photos, schools, taxes, and full price history, plus listing search, building extraction, async batch jobs, and signed webhooks.

Zillapi publishes 7 APIs on the APIs.io network, including Account API, Buildings API, Jobs API, and 4 more. Tagged areas include Real-Estate, PropTech, Property Data, Zillow, and Zestimate.

The Zillapi catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Zillapi’s developer surface includes authentication, documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

62.4/100 strong ▬ flat Agent 60/100 agent ready saas Full breakdown ↓
scored 2026-09-06 · rubric v0.19.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs 1 MCP Servers

Real-Estate PropTech Property DataZillowZestimateValuation AVM Listings MCP AI Agent REST API

Kin Score

Kin Score How this is scored →
scored 2026-09-06 · rubric v0.19.0

Composite quality — 62.4/100 · strong

Contract Quality 16.6 / 25

Developer Ergonomics 12.9 / 20

Access Clarity 15.3 / 20

Operational Transparency 6.8 / 13

Contract Governance 2.2 / 12

Discoverability 8.7 / 10

Agent readiness — 60/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

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/zillapi: 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 →

APIs 7

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

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Rate Limits 1

Documented rate limits and quota policies.

Scopes 1

OAuth scopes governing access to this provider's APIs.

Zillapi Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Zillapi Agentic Access

29 operations · 8 acting · 1 human-in-the-loop

29 operations · 8 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

MCPServer

AgenticAccess

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

Webhooks

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Blog

Blog

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

APICatalog

APICatalog

Source (apis.yml)

name: Zillapi
description: Independent third-party provider of Zillow-sourced U.S. residential property data via a REST API, hosted MCP
  server, and agent skills. Returns ~300+ fields per property including price, Zestimate, rent Zestimate, photos, schools,
  taxes, and full price history, plus listing search, building extraction, async batch jobs, and signed webhooks.
url: https://raw.githubusercontent.com/api-evangelist/zillapi/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
image: https://zillapi.com/og.png
created: '2026-07-13'
modified: '2026-08-09'
specificationVersion: '0.23'
tags:
- Real-Estate
- PropTech
- Property Data
- Zillow
- Zestimate
- Valuation
- AVM
- Listings
- MCP
- AI Agent
- REST API
tags_raw:
- real estate
- proptech
- property data
- zillow
- zestimate
- valuation
- AVM
- listings
- MCP
- AI agent
- REST API
apis:
- aid: zillapi:zillapi-account-api
  name: Zillapi Account API
  description: The Account API from Zillapi — 2 operation(s) for account.
  humanURL: https://zillapi.com/api/properties/
  baseURL: https://api.zillapi.com
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/zillapi-account-api-openapi.yml
  - type: Documentation
    url: https://zillapi.com/quickstart/
  - type: LLMsTxt
    url: https://zillapi.com/llms.txt
  - type: LLMsTxt
    url: https://zillapi.com/llms-full.txt
  - type: ToolCrosswalk
    url: mcp/zillapi-tool-crosswalk.yml
  - type: LLMsTxt
    url: llms/zillapi-llms.txt
  - type: DataModel
    url: data-model/zillapi-data-model.yml
  - type: Examples
    url: examples/zillapi-examples.yml
- aid: zillapi:zillapi-buildings-api
  name: Zillapi Buildings API
  description: The Buildings API from Zillapi — 1 operation(s) for buildings.
  humanURL: https://zillapi.com/api/properties/
  baseURL: https://api.zillapi.com
  tags:
  - Buildings
  properties:
  - type: OpenAPI
    url: openapi/zillapi-buildings-api-openapi.yml
  - type: Documentation
    url: https://zillapi.com/quickstart/
  - type: LLMsTxt
    url: https://zillapi.com/llms.txt
  - type: LLMsTxt
    url: https://zillapi.com/llms-full.txt
  - type: ToolCrosswalk
    url: mcp/zillapi-tool-crosswalk.yml
  - type: LLMsTxt
    url: llms/zillapi-llms.txt
  - type: DataModel
    url: data-model/zillapi-data-model.yml
  - type: Examples
    url: examples/zillapi-examples.yml
- aid: zillapi:zillapi-jobs-api
  name: Zillapi Jobs API
  description: The Jobs API from Zillapi — 3 operation(s) for jobs.
  humanURL: https://zillapi.com/api/properties/
  baseURL: https://api.zillapi.com
  tags:
  - Job
  tags_raw:
  - Jobs
  properties:
  - type: OpenAPI
    url: openapi/zillapi-jobs-api-openapi.yml
  - type: Documentation
    url: https://zillapi.com/quickstart/
  - type: LLMsTxt
    url: https://zillapi.com/llms.txt
  - type: LLMsTxt
    url: https://zillapi.com/llms-full.txt
  - type: ToolCrosswalk
    url: mcp/zillapi-tool-crosswalk.yml
  - type: LLMsTxt
    url: llms/zillapi-llms.txt
  - type: DataModel
    url: data-model/zillapi-data-model.yml
  - type: Examples
    url: examples/zillapi-examples.yml
- aid: zillapi:zillapi-listings-api
  name: Zillapi Listings API
  description: The Listings API from Zillapi — 4 operation(s) for listings.
  humanURL: https://zillapi.com/api/properties/
  baseURL: https://api.zillapi.com
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/zillapi-listings-api-openapi.yml
  - type: Documentation
    url: https://zillapi.com/quickstart/
  - type: LLMsTxt
    url: https://zillapi.com/llms.txt
  - type: LLMsTxt
    url: https://zillapi.com/llms-full.txt
  - type: ToolCrosswalk
    url: mcp/zillapi-tool-crosswalk.yml
  - type: LLMsTxt
    url: llms/zillapi-llms.txt
  - type: DataModel
    url: data-model/zillapi-data-model.yml
  - type: Examples
    url: examples/zillapi-examples.yml
- aid: zillapi:zillapi-properties-api
  name: Zillapi Properties API
  description: The Properties API from Zillapi — 13 operation(s) for properties.
  humanURL: https://zillapi.com/api/properties/
  baseURL: https://api.zillapi.com
  tags:
  - Properties
  properties:
  - type: OpenAPI
    url: openapi/zillapi-properties-api-openapi.yml
  - type: Documentation
    url: https://zillapi.com/quickstart/
  - type: LLMsTxt
    url: https://zillapi.com/llms.txt
  - type: LLMsTxt
    url: https://zillapi.com/llms-full.txt
  - type: ToolCrosswalk
    url: mcp/zillapi-tool-crosswalk.yml
  - type: LLMsTxt
    url: llms/zillapi-llms.txt
  - type: DataModel
    url: data-model/zillapi-data-model.yml
  - type: Examples
    url: examples/zillapi-examples.yml
- aid: zillapi:zillapi-search-api
  name: Zillapi Search API
  description: The Search API from Zillapi — 2 operation(s) for search.
  humanURL: https://zillapi.com/api/properties/
  baseURL: https://api.zillapi.com
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/zillapi-search-api-openapi.yml
  - type: Documentation
    url: https://zillapi.com/quickstart/
  - type: LLMsTxt
    url: https://zillapi.com/llms.txt
  - type: LLMsTxt
    url: https://zillapi.com/llms-full.txt
  - type: ToolCrosswalk
    url: mcp/zillapi-tool-crosswalk.yml
  - type: LLMsTxt
    url: llms/zillapi-llms.txt
  - type: DataModel
    url: data-model/zillapi-data-model.yml
  - type: Examples
    url: examples/zillapi-examples.yml
- aid: zillapi:zillapi-webhooks-api
  name: Zillapi Webhooks API
  description: The Webhooks API from Zillapi — 3 operation(s) for webhooks.
  humanURL: https://zillapi.com/api/properties/
  baseURL: https://api.zillapi.com
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/zillapi-webhooks-api-openapi.yml
  - type: Documentation
    url: https://zillapi.com/quickstart/
  - type: LLMsTxt
    url: https://zillapi.com/llms.txt
  - type: LLMsTxt
    url: https://zillapi.com/llms-full.txt
  - type: ToolCrosswalk
    url: mcp/zillapi-tool-crosswalk.yml
  - type: LLMsTxt
    url: llms/zillapi-llms.txt
  - type: DataModel
    url: data-model/zillapi-data-model.yml
  - type: Examples
    url: examples/zillapi-examples.yml
maintainers:
- FN: ZeroPointRepo
  email: hello@zillapi.com
  url: https://github.com/ZeroPointRepo/zillow-skills
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 97
  at: '2026-07-13T07:54:16.663Z'
common:
- type: CapabilityMap
  url: capabilities/zillapi-capability-edges.yml
  name: Zillapi Business Capability Map
- type: AgentSkill
  url: skills/zillapi-get-zestimate.md
- type: MCPServer
  url: mcp/zillapi-mcp.yml
- type: Overlay
  url: overlays/zillapi-openapi-overlay.yaml
- type: DomainSecurity
  url: security/zillapi-domain-security.yml
- type: AgenticAccess
  url: agentic-access/zillapi-agentic-access.yml
- type: Authentication
  url: authentication/zillapi-authentication.yml
- type: OAuthScopes
  url: scopes/zillapi-scopes.yml
- type: Conventions
  url: conventions/zillapi-conventions.yml
- type: ErrorCatalog
  url: errors/zillapi-error-codes.yml
- type: Lifecycle
  url: lifecycle/zillapi-lifecycle.yml
- type: Conformance
  url: conformance/zillapi-conformance.yml
- type: Packages
  url: packages/zillapi-packages.yml
- type: WellKnown
  url: well-known/zillapi-well-known.yml
- type: APICatalog
  url: https://zillapi.com/.well-known/api-catalog
- type: Webhooks
  url: asyncapi/zillapi-webhooks.yml
- type: RateLimits
  url: rate-limits/zillapi-rate-limits.yml
- type: Plans
  url: plans/zillapi-plans.yml
- type: VulnerabilityDisclosure
  url: security/zillapi-vulnerability-disclosure.yml
- type: Security
  url: https://github.com/ZeroPointRepo/zillow-skills/blob/main/SECURITY.md
- type: DeveloperPortal
  url: https://zillapi.com/
- type: Documentation
  url: https://zillapi.com/quickstart/
- type: APIReference
  url: https://zillapi.com/api/properties/
- type: GettingStarted
  url: https://zillapi.com/quickstart/
- type: Blog
  url: https://zillapi.com/blog/
- type: GitHubOrganization
  url: https://github.com/ZeroPointRepo/zillow-skills
- type: Pricing
  url: https://zillapi.com/pricing/
- type: SignUp
  url: https://zillapi.com/signup
- type: Login
  url: https://zillapi.com/login
- type: TermsOfService
  url: https://zillapi.com/legal/terms/
- type: PrivacyPolicy
  url: https://zillapi.com/legal/privacy/
- type: Support
  url: mailto:hello@zillapi.com
x-enrichment:
  date: '2026-08-09'
  status: enriched
  artifacts_added: 33
  pass: local-v1

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