Particle Space

Particle Space is proptech infrastructure that exposes real-estate and property data through a REST API, Dashboard, SDKs, and white-labeled UIs. The platform provides real-time access to millions of properties for sale, rent, and off-market - property records, address and property search, valuations, comparables, and listings - using publishable and secret API keys with live and test modes.

Particle Space publishes 5 APIs on the APIs.io network, including Address Search API, Comparables API, Listings API, and 2 more. Tagged areas include Real-Estate, Property Data, PropTech, Listings, and Valuations.

Particle Space’s developer surface includes authentication, documentation, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

33.1/100 thin ▬ flat Agent 23/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

5 APIs

Real-Estate Property Data PropTech Listings Valuations

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 33.1/100 · thin

Contract Quality 11.3 / 25

Developer Ergonomics 3.3 / 20

Access Clarity 7.9 / 20

Operational Transparency 3.1 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 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/. This rating is computed from github.com/api-evangelist/particle-space: 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 5

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

Rate Limits 1

Documented rate limits and quota policies.

Particle Space Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: particle-space
url: https://raw.githubusercontent.com/api-evangelist/particle-space/refs/heads/main/apis.yml
name: Particle Space
kind: company
description: Particle Space is proptech infrastructure that exposes real-estate and property data through a REST API, Dashboard,
  SDKs, and white-labeled UIs. The platform provides real-time access to millions of properties for sale, rent, and off-market
  - property records, address and property search, valuations, comparables, and listings - using publishable and secret API
  keys with live and test modes.
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/particle-space.png
tags:
- Real-Estate
- Property Data
- PropTech
- Listings
- Valuations
tags_raw:
- Real Estate
- Property Data
- PropTech
- Listings
- Valuations
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.23'
apis:
- aid: particle-space:particle-space-address-search-api
  name: Particle Space Address Search API
  description: Address and property search / lookup.
  humanURL: https://docs.particlespace.com/docs/intro/
  baseURL: https://api.particlespace.com
  tags:
  - Address Search
  properties:
  - type: OpenAPI
    url: openapi/particle-space-address-search-api-openapi.yml
  - type: Documentation
    url: https://docs.particlespace.com/docs/intro/
  - type: PostmanCollection
    url: collections/particle-space.postman_collection.json
  - type: OpenCollection
    url: collections/particle-space.opencollection.json
- aid: particle-space:particle-space-comparables-api
  name: Particle Space Comparables API
  description: Comparable properties for a subject property.
  humanURL: https://docs.particlespace.com/docs/intro/
  baseURL: https://api.particlespace.com
  tags:
  - Comparables
  properties:
  - type: OpenAPI
    url: openapi/particle-space-comparables-api-openapi.yml
  - type: Documentation
    url: https://docs.particlespace.com/docs/intro/
  - type: PostmanCollection
    url: collections/particle-space.postman_collection.json
  - type: OpenCollection
    url: collections/particle-space.opencollection.json
- aid: particle-space:particle-space-listings-api
  name: Particle Space Listings API
  description: For-sale, for-rent, and off-market property listings.
  humanURL: https://docs.particlespace.com/docs/intro/
  baseURL: https://api.particlespace.com
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/particle-space-listings-api-openapi.yml
  - type: Documentation
    url: https://docs.particlespace.com/docs/intro/
  - type: PostmanCollection
    url: collections/particle-space.postman_collection.json
  - type: OpenCollection
    url: collections/particle-space.opencollection.json
- aid: particle-space:particle-space-property-records-api
  name: Particle Space Property Records API
  description: Property records and detailed attributes.
  humanURL: https://docs.particlespace.com/docs/intro/
  baseURL: https://api.particlespace.com
  tags:
  - Property Records
  properties:
  - type: OpenAPI
    url: openapi/particle-space-property-records-api-openapi.yml
  - type: Documentation
    url: https://docs.particlespace.com/docs/intro/
  - type: PostmanCollection
    url: collections/particle-space.postman_collection.json
  - type: OpenCollection
    url: collections/particle-space.opencollection.json
- aid: particle-space:particle-space-valuations-api
  name: Particle Space Valuations API
  description: Automated valuation model (AVM) value and rent estimates.
  humanURL: https://docs.particlespace.com/docs/intro/
  baseURL: https://api.particlespace.com
  tags:
  - Valuations
  properties:
  - type: OpenAPI
    url: openapi/particle-space-valuations-api-openapi.yml
  - type: Documentation
    url: https://docs.particlespace.com/docs/intro/
  - type: PostmanCollection
    url: collections/particle-space.postman_collection.json
  - type: OpenCollection
    url: collections/particle-space.opencollection.json
common:
- type: AgenticAccess
  url: agentic-access/particle-space-agentic-access.yml
- type: Authentication
  url: authentication/particle-space-authentication.yml
- type: GitHubOrganization
  url: https://github.com/particlespace
- type: LinkedIn
  url: https://www.linkedin.com/company/particle-space
- type: Website
  url: https://particlespace.com/
- type: Documentation
  url: https://docs.particlespace.com/
- type: Plans
  url: plans/particle-space-plans-pricing.yml
- type: RateLimits
  url: rate-limits/particle-space-rate-limits.yml
- type: FinOps
  url: finops/particle-space-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Particle Space

Kin Score

APIs 5

Particle Space Address Search API

Particle Space Comparables API

Particle Space Listings API

Particle Space Property Records API

Particle Space Valuations API

Open Collections 7

API Collection

Particle Space Address Search API

Particle Space Address Search Comparables API

Particle Space Address Search Listings API

Particle Space Address Search Property Records API

Particle Space Address Search Valuations API

Particle Space API

Pricing Plans 1

Particle Space Plans Pricing