RentCast

RentCast provides a real estate data API with instant access to over 140 million property records, automated valuation models (AVM) for home value and rent estimates, active and historical sale and rental listings, and aggregate real estate market statistics for US zip codes. The API enables real estate investors, property managers, landlords, and proptech applications to programmatically access comprehensive residential and commercial property data across all 50 US states.

RentCast publishes 4 APIs on the APIs.io network, including Avm API, Listings API, Markets API, and 1 more. Tagged areas include Real Estate, Property Data, Valuation, Rental Market, and AVM.

The RentCast catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

RentCast’s developer surface includes authentication, developer portal, documentation, support, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

50.6/100 developing ▬ flat Agent 37/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

4 APIs

Real EstateProperty DataValuationRental MarketAVM

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 50.6/100 · developing

Contract Quality 16.6 / 25

Developer Ergonomics 7.0 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 4.8 / 13

Governance 7.0 / 12

Discoverability 7.4 / 10

Agent readiness — 37/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 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

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/rentcast: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

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

Rate Limits 1

Documented rate limits and quota policies.

Rentcast Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Examples 2

Example request and response payloads for these APIs.

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: rentcast
name: RentCast
description: RentCast provides a real estate data API with instant access to over 140 million property records, automated
  valuation models (AVM) for home value and rent estimates, active and historical sale and rental listings, and aggregate
  real estate market statistics for US zip codes. The API enables real estate investors, property managers, landlords, and
  proptech applications to programmatically access comprehensive residential and commercial property data across all 50 US
  states.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/rentcast.png
tags:
- Real Estate
- Property Data
- Valuation
- Rental Market
- AVM
url: https://raw.githubusercontent.com/api-evangelist/rentcast/refs/heads/main/apis.yml
created: '2025-03-01'
modified: '2026-05-19'
specificationVersion: '0.19'
apis:
- aid: rentcast:rentcast-avm-api
  name: RentCast Avm API
  description: The Avm API from RentCast — 2 operation(s) for avm.
  humanURL: https://www.rentcast.io/api
  baseURL: https://api.rentcast.io/v1
  tags:
  - Avm
  properties:
  - type: OpenAPI
    url: openapi/rentcast-avm-api-openapi.yml
  - type: Documentation
    url: https://developers.rentcast.io/reference/introduction
  - type: PostmanCollection
    url: https://www.postman.com/rentcast/rentcast-api/documentation/ca4yudw/rentcast-api-endpoints
  - type: GitHubOrganization
    url: https://github.com/RentCast
  - type: Rules
    url: rules/rentcast-rules.yml
  - type: Capabilities
    url: capabilities/property-research.yaml
  - type: JSONSchema
    url: json-schema/rentcast-property-schema.json
  - type: JSONStructure
    url: json-structure/rentcast-property-structure.json
  - type: JSONLD
    url: json-ld/rentcast-context.jsonld
  - type: Vocabulary
    url: vocabulary/rentcast-vocabulary.yml
- aid: rentcast:rentcast-listings-api
  name: RentCast Listings API
  description: The Listings API from RentCast — 4 operation(s) for listings.
  humanURL: https://www.rentcast.io/api
  baseURL: https://api.rentcast.io/v1
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/rentcast-listings-api-openapi.yml
  - type: Documentation
    url: https://developers.rentcast.io/reference/introduction
  - type: PostmanCollection
    url: https://www.postman.com/rentcast/rentcast-api/documentation/ca4yudw/rentcast-api-endpoints
  - type: GitHubOrganization
    url: https://github.com/RentCast
  - type: Rules
    url: rules/rentcast-rules.yml
  - type: Capabilities
    url: capabilities/property-research.yaml
  - type: JSONSchema
    url: json-schema/rentcast-property-schema.json
  - type: JSONStructure
    url: json-structure/rentcast-property-structure.json
  - type: JSONLD
    url: json-ld/rentcast-context.jsonld
  - type: Vocabulary
    url: vocabulary/rentcast-vocabulary.yml
- aid: rentcast:rentcast-markets-api
  name: RentCast Markets API
  description: The Markets API from RentCast — 1 operation(s) for markets.
  humanURL: https://www.rentcast.io/api
  baseURL: https://api.rentcast.io/v1
  tags:
  - Markets
  properties:
  - type: OpenAPI
    url: openapi/rentcast-markets-api-openapi.yml
  - type: Documentation
    url: https://developers.rentcast.io/reference/introduction
  - type: PostmanCollection
    url: https://www.postman.com/rentcast/rentcast-api/documentation/ca4yudw/rentcast-api-endpoints
  - type: GitHubOrganization
    url: https://github.com/RentCast
  - type: Rules
    url: rules/rentcast-rules.yml
  - type: Capabilities
    url: capabilities/property-research.yaml
  - type: JSONSchema
    url: json-schema/rentcast-property-schema.json
  - type: JSONStructure
    url: json-structure/rentcast-property-structure.json
  - type: JSONLD
    url: json-ld/rentcast-context.jsonld
  - type: Vocabulary
    url: vocabulary/rentcast-vocabulary.yml
- aid: rentcast:rentcast-properties-api
  name: RentCast Properties API
  description: The Properties API from RentCast — 3 operation(s) for properties.
  humanURL: https://www.rentcast.io/api
  baseURL: https://api.rentcast.io/v1
  tags:
  - Properties
  properties:
  - type: OpenAPI
    url: openapi/rentcast-properties-api-openapi.yml
  - type: Documentation
    url: https://developers.rentcast.io/reference/introduction
  - type: PostmanCollection
    url: https://www.postman.com/rentcast/rentcast-api/documentation/ca4yudw/rentcast-api-endpoints
  - type: GitHubOrganization
    url: https://github.com/RentCast
  - type: Rules
    url: rules/rentcast-rules.yml
  - type: Capabilities
    url: capabilities/property-research.yaml
  - type: JSONSchema
    url: json-schema/rentcast-property-schema.json
  - type: JSONStructure
    url: json-structure/rentcast-property-structure.json
  - type: JSONLD
    url: json-ld/rentcast-context.jsonld
  - type: Vocabulary
    url: vocabulary/rentcast-vocabulary.yml
common:
- type: AgenticAccess
  url: agentic-access/rentcast-agentic-access.yml
- type: DomainSecurity
  url: security/rentcast-domain-security.yml
- type: Authentication
  url: authentication/rentcast-authentication.yml
- url: https://www.rentcast.io
  name: RentCast
  type: Website
  description: RentCast real estate data platform homepage
- url: https://developers.rentcast.io
  name: RentCast Developer Portal
  type: Portal
  description: API documentation and developer resources
- url: https://app.rentcast.io/app/api
  name: RentCast API Dashboard
  type: Portal
  description: API key management and usage dashboard
- url: https://www.rentcast.io/api
  name: RentCast API
  type: Documentation
  description: Overview of RentCast API features and pricing
- url: https://help.rentcast.io
  name: RentCast Help Center
  type: Support
  description: Help articles and support documentation
- url: https://www.rentcast.io/blog
  name: RentCast Blog
  type: Blog
  description: Product updates and real estate data insights
- url: https://github.com/RentCast
  name: RentCast GitHub
  type: GitHubOrganization
  description: OpenAPI specs, Postman collections, and developer resources
- type: LlmsText
  url: https://developers.rentcast.io/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

RentCast

APIs 4

Open Collections 1

Pricing Plans 1