Reonomy

Reonomy (an Altus Group company) is a commercial real-estate property-intelligence platform whose REST API delivers property search, property detail, ownership, mortgage, sales and debt, tax, tenant, and contact / skip-trace data across U.S. commercial real estate. The API resolves addresses to a stable Reonomy property ID and returns rich detail records keyed by that ID.

Reonomy publishes 2 API contracts indexed on the APIs.io network: Property API and Search API. Tagged areas include Commercial Real Estate, Property Data, Property Intelligence, Ownership, and Skip Trace.

The Reonomy catalog on APIs.io includes 1 Spectral governance ruleset.

Reonomy’s developer surface includes authentication, documentation, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.3/100 thin ▬ flat Agent 20/100 agent aware Front door AI 3/6 light saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessEnterprise

1 published contract

Commercial Real Estate Property Data Property Intelligence OwnershipSkip Trace

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 27.3/100 · thin

Contract Quality 9.8 / 19

Developer Ergonomics 4.3 / 15

Access Clarity 0.6 / 15

Operational Transparency 1.2 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 0.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 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

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

MCP Tool Quality 6 / 6

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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 4.3 — up to +19.1 composite points Ask about this →
Developer Ergonomics scores 28.6 — up to +14.3 composite points Ask about this →
Contract Quality scores 52.0 — up to +12.0 composite points Ask about this →

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.

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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/reonomy/apis.yml: open an issue on github.com/api-evangelist/reonomy 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 →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 2

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

Reonomy Property API

Retrieve detailed property records by ID.

Reonomy Search API

Search and resolve commercial real-estate properties.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Reonomy Property API

OPEN COLLECTION

Reonomy Property Search API

OPEN COLLECTION

Reonomy Property API

OPEN COLLECTION

Reonomy API pricing

Not yet checked against Reonomy's own pricing page. Compiled by API Evangelist on 2026-06-21 from www.reonomy.com/solutions/data-solutions/; confirm before you rely on a figure.

Plan	Price
Property API Access enterprise	—
Data Solutions / Bulk Data Feeds enterprise	—

Plan details, limits and sources →

Rate limits

Bulk Property IDs Per Request: 250 property ids
Search Page Size: see provider documentation items
Account Request Quota: see enterprise agreement requests

Compiled by API Evangelist, not yet checked against Reonomy's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Reonomy Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Reonomy Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Reonomy Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Reonomy API Rules

65 rules · 63 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

Reonomy Authentication

http · 1 scheme

SECURITY

Reonomy Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Reonomy Agentic Access

5 operations · 1 acting

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 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

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: reonomy
url: https://raw.githubusercontent.com/api-evangelist/reonomy/refs/heads/main/apis.yml
name: Reonomy
kind: company
description: Reonomy (an Altus Group company) is a commercial real-estate property-intelligence platform whose REST API delivers
  property search, property detail, ownership, mortgage, sales and debt, tax, tenant, and contact / skip-trace data across
  U.S. commercial real estate. The API resolves addresses to a stable Reonomy property ID and returns rich detail records
  keyed by that ID.
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: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/reonomy.png
tags:
- Commercial Real Estate
- Property Data
- Property Intelligence
- Ownership
- Skip Trace
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.23'
apis:
- aid: reonomy:reonomy-property-api
  name: Reonomy Property API
  description: Retrieve detailed property records by ID.
  humanURL: https://api.reonomy.com/v2/docs/guides/search/
  baseURL: https://api.reonomy.com/v2
  tags:
  - Property
  properties:
  - type: OpenAPI
    url: openapi/reonomy-property-api-openapi.yml
  - type: Documentation
    url: https://api.reonomy.com/v2/docs/guides/search/
  - type: APIReference
    url: https://api.reonomy.com/v2/docs/api/reference/
  - type: Documentation
    url: https://api.reonomy.com/v2/docs/guides/property-details/
- aid: reonomy:reonomy-search-api
  name: Reonomy Search API
  description: Search and resolve commercial real-estate properties.
  humanURL: https://api.reonomy.com/v2/docs/guides/search/
  baseURL: https://api.reonomy.com/v2
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/reonomy-search-api-openapi.yml
  - type: Documentation
    url: https://api.reonomy.com/v2/docs/guides/search/
  - type: APIReference
    url: https://api.reonomy.com/v2/docs/api/reference/
  - type: Documentation
    url: https://api.reonomy.com/v2/docs/guides/property-details/
common:
- type: AgenticAccess
  url: agentic-access/reonomy-agentic-access.yml
- type: DomainSecurity
  url: security/reonomy-domain-security.yml
- type: Authentication
  url: authentication/reonomy-authentication.yml
- type: GitHubOrganization
  url: https://github.com/reonomy
- type: LinkedIn
  url: https://www.linkedin.com/company/reonomy
- type: Website
  url: https://www.reonomy.com
- type: Documentation
  url: https://api.reonomy.com/v2/docs/
- type: Plans
  url: plans/reonomy-plans-pricing.yml
- type: RateLimits
  url: rate-limits/reonomy-rate-limits.yml
- type: FinOps
  url: finops/reonomy-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Reonomy API — frequently asked questions

Does Reonomy have an API?

Yes. APIs.io lists 2 APIs from Reonomy, including Reonomy Property API and Reonomy Search API.

Is there an OpenAPI specification for the Reonomy API?

Yes. APIs.io indexes 2 OpenAPI specifications for Reonomy, each linked for download from this page.

How do I authenticate with the Reonomy API?

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

How much does the Reonomy API cost?

APIs.io lists 2 pricing plans for Reonomy, with each plan's price, limits and inclusions under Pricing on this page.

Is the Reonomy API ready for AI agents?

Reonomy has a Kin Score of 27.3 out of 100 (thin) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-13.

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