API Evangelist Sector Report
The State of US Real Estate APIs
45 US real estate organizations scored (avg 31.2) — the only market in the series with a mandated machine-readable contract, and the mandate is worth about two points. RESO-certified providers average 38.0 against 36.0 for everyone else, every certified party is a reseller whose metadata document returns 401, and the portal NAR itself is affiliated with scores 7.9. Property-management software tops the market; nothing in it reaches Exemplar.
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US Real Estate
Grouped by Kin Score band and ranked by composite score within each, with the separate agent-readiness score alongside. Click the scores on any row to open the full facet and dimension breakdown behind both numbers, and click again to close it.
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45 providers
Strong 1 60–69.9 Solid contracts, transparent operations, and an easy start.
1
Yardi Strong agent ready Property Management
Yardi develops and supports industry-leading investment and property management software for all types and sizes of real estate companies. The platform inclu...
Composite
62.9
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 62.9/100 · strong
Contract Quality
16.8 / 25
Developer Ergonomics
9.1 / 20
Commercial Clarity
12.6 / 20
Operational Transparency
5.5 / 13
Governance
8.8 / 12
Discoverability
10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
Developing 6 45–59.9 Real signal across most facets with visible, nameable gaps.
2
Estated Developing agent ready Property Data & Analytics
Estated is a property-data company that operates a JSON REST API returning detailed U.S. residential and commercial property records — assessor data, parcel ...
Composite
53.4
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 53.4/100 · developing
Contract Quality
18.6 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
0.7 / 13
Governance
8.8 / 12
Discoverability
9.3 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
3
Keller Williams Developing agent native Brokerages & Agencies
Keller Williams Realty, Inc. (KWRI) is an Austin, Texas headquartered residential real estate franchisor and the largest real estate brokerage franchise in t...
Composite
52.6
Agent
63.5
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 52.6/100 · developing
Contract Quality
15.1 / 25
Developer Ergonomics
11.7 / 20
Commercial Clarity
6.8 / 20
Operational Transparency
4.8 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Regulatory · Securities & Market Data
11.4 / 15
Agent readiness — 64/100 · agent native
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
6 / 6
Agent Skills
5 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
4
Redfin Developing agent aware Portals & Marketplaces
Redfin is a technology-powered real estate brokerage that provides property search, home value estimates, listing details, neighborhood statistics, commute d...
Composite
50.9
Agent
38.5
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 50.9/100 · developing
Contract Quality
15.9 / 25
Developer Ergonomics
1.3 / 20
Commercial Clarity
12.6 / 20
Operational Transparency
3.4 / 13
Governance
8.8 / 12
Discoverability
8.8 / 10
Agent readiness — 39/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
5
Lone Wolf Technologies Developing agent native Agency CRM & Transaction Technology
Lone Wolf Technologies is the dominant back-office, transaction-management and forms vendor in North American residential real estate, headquartered in Dalla...
Composite
49.2
Agent
75.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 49.2/100 · developing
Contract Quality
14.5 / 25
Developer Ergonomics
14.8 / 20
Commercial Clarity
6.8 / 20
Operational Transparency
3.1 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 75/100 · agent native
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
12 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
6 / 6
Agent Skills
5 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
6
Placer Developing agent native Property Data & Analytics
Placer.ai is a location analytics and foot-traffic intelligence platform that measures visits, trade areas, demographics, and consumer behavior for physical ...
Composite
49.0
Agent
72.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 49.0/100 · developing
Contract Quality
13.5 / 25
Developer Ergonomics
13.5 / 20
Commercial Clarity
8.9 / 20
Operational Transparency
3.1 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 72/100 · agent native
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
12 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
7 / 7
Typed Event Surface
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
7
VTS Developing agent native Commercial Real Estate
VTS (View The Space) is the commercial real estate leasing, asset management, and tenant-experience platform used by landlords, property managers, and broker...
Composite
48.6
Agent
69.2
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 48.6/100 · developing
Contract Quality
14.3 / 25
Developer Ergonomics
14.3 / 20
Commercial Clarity
6.8 / 20
Operational Transparency
3.1 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 69/100 · agent native
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
12 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
Thin 18 30–44.9 Limited machine-readable signal beyond documentation a human can read.
8
Spark Platform Thin agent aware Listing Data Infrastructure
Spark Platform is the MLS data platform built by FBS, a 100% employee-owned company in Fargo, North Dakota that has served the US Multiple Listing Service in...
Composite
44.6
Agent
40.4
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 44.6/100 · thin
Contract Quality
5.7 / 25
Developer Ergonomics
12.6 / 20
Commercial Clarity
10.5 / 20
Operational Transparency
5.8 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 40/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 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
0 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
9
Anywhere Real Estate Thin agent aware Brokerages & Agencies
Anywhere Real Estate Inc. (formerly Realogy Holdings Corp., NYSE: HOUS) is one of the largest residential real estate services companies in the United States...
Composite
41.9
Agent
21.2
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 41.9/100 · thin
Contract Quality
0.0 / 25
Developer Ergonomics
10.4 / 20
Commercial Clarity
10.0 / 20
Operational Transparency
4.8 / 13
Governance
0.0 / 12
Discoverability
8.8 / 10
Regulatory · Securities & Market Data
13.1 / 15
Agent readiness — 21/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
10
CBRE Thin agent ready Commercial Real Estate
CBRE Group, Inc. (NYSE: CBRE) is the world's largest commercial real estate services and investment firm, with 155,000 professionals across 500+ offices in 1...
Composite
41.6
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 41.6/100 · thin
Contract Quality
15.1 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
10.0 / 20
Operational Transparency
3.4 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
11
RESO (Real Estate Standards Organization) Thin agent aware Industry Bodies & Standards
RESO, the Real Estate Standards Organization, is the United States industry body that writes and certifies the machine-readable contract for residential real...
Composite
41.6
Agent
27.9
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 41.6/100 · thin
Contract Quality
5.7 / 25
Developer Ergonomics
15.7 / 20
Commercial Clarity
6.8 / 20
Operational Transparency
5.5 / 13
Governance
0.0 / 12
Discoverability
8.0 / 10
Agent readiness — 28/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
6 / 6
Agent Skills
5 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
12
HouseCanary Thin agent aware Valuation & AVM
HouseCanary is a property analytics platform providing REST APIs for automated valuation model (AVM) data, property details, rental estimates, market forecas...
Composite
41.5
Agent
24.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 41.5/100 · thin
Contract Quality
13.2 / 25
Developer Ergonomics
2.2 / 20
Commercial Clarity
10.0 / 20
Operational Transparency
6.8 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Agent readiness — 24/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
13
ATTOM Thin agent ready Property Data & Analytics
ATTOM Data Solutions is a national property, real estate, and location data provider that curates a multi-sourced warehouse of data on 158+ million U.S. prop...
Composite
40.9
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 40.9/100 · thin
Contract Quality
14.6 / 25
Developer Ergonomics
4.3 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
4.1 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
14
Offerpad Thin agent native iBuyers & Instant Offers
Offerpad Solutions Inc. (NYSE: OPAD), headquartered in Chandler, Arizona, is a United States iBuyer and licensed residential real estate brokerage that buys ...
Composite
40.7
Agent
69.2
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 40.7/100 · thin
Contract Quality
9.4 / 25
Developer Ergonomics
8.3 / 20
Commercial Clarity
6.8 / 20
Operational Transparency
0.7 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Regulatory · Securities & Market Data
11.4 / 15
Agent readiness — 69/100 · agent native
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
12 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
15
Trestle Thin agent aware Listing Data Infrastructure
Trestle is the real estate data distribution platform operated by CoreLogic (rebranded Cotality in 2025), sitting between roughly 500 US Multiple Listing Ser...
Composite
40.4
Agent
39.4
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 40.4/100 · thin
Contract Quality
0.0 / 25
Developer Ergonomics
12.6 / 20
Commercial Clarity
8.4 / 20
Operational Transparency
10.6 / 13
Governance
0.0 / 12
Discoverability
8.8 / 10
Agent readiness — 39/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 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
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
16
Blend Labs Thin agent aware Mortgage Proptech
Blend Labs, Inc. (NYSE: BLND) is a cloud banking platform, founded in 2012 and headquartered in the San Francisco Bay Area, that powers digital lending and a...
Composite
39.7
Agent
26.9
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 39.7/100 · thin
Contract Quality
15.1 / 25
Developer Ergonomics
9.1 / 20
Commercial Clarity
4.7 / 20
Operational Transparency
6.2 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Regulatory · Banking & Open Finance
2.0 / 15
Agent readiness — 27/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
6 / 6
Agent Skills
0 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
17
Bridge Interactive Thin agent ready Listing Data Infrastructure
Bridge Interactive (a Zillow Group company) is a real-estate data-access platform that normalizes MLS listing data to RESO standards and serves it through th...
Composite
39.3
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 39.3/100 · thin
Contract Quality
13.4 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
4.1 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
18
dotloop Thin agent ready Agency CRM & Transaction Technology
dotloop is a real estate transaction management platform (owned by Zillow Group) that lets agents, teams, and brokerages create and manage transactions - cal...
Composite
39.0
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 39.0/100 · thin
Contract Quality
13.7 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
3.4 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
19
Encompass Thin agent ready Mortgage Proptech
Encompass is the dominant mortgage loan origination system (LOS), a product of ICE Mortgage Technology (formerly Ellie Mae, acquired by Intercontinental Exch...
Composite
38.5
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 38.5/100 · thin
Contract Quality
14.0 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
5.8 / 20
Operational Transparency
4.8 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
20
Reonomy Thin agent ready Commercial Real Estate
Reonomy (an Altus Group company) is a commercial real-estate property-intelligence platform whose REST API delivers property search, property detail, ownersh...
Composite
38.3
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 38.3/100 · thin
Contract Quality
14.6 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
5.8 / 20
Operational Transparency
4.8 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
21
SkySlope Thin agent aware Agency CRM & Transaction Technology
SkySlope is a real estate transaction management and digital forms platform used by brokerages, teams, and agents across the U.S. and Canada to store, manage...
Composite
36.4
Agent
38.5
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 36.4/100 · thin
Contract Quality
12.7 / 25
Developer Ergonomics
1.7 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
4.1 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 39/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
22
National Association of REALTORS Thin agent native Industry Bodies & Standards
The National Association of REALTORS (NAR) is the largest trade association in the United States, representing roughly one million members across residential...
Composite
34.6
Agent
72.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 34.6/100 · thin
Contract Quality
9.4 / 25
Developer Ergonomics
8.3 / 20
Commercial Clarity
4.2 / 20
Operational Transparency
3.4 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Agent readiness — 72/100 · agent native
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
MCP Server
12 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
7 / 7
Typed Event Surface
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
23
Clear Capital Thin agent aware Valuation & AVM
Clear Capital is a real-estate valuation and property data platform serving mortgage lenders, investors, and capital markets. Its developer surface is expose...
Composite
34.1
Agent
33.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 34.1/100 · thin
Contract Quality
9.4 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
7.4 / 20
Operational Transparency
3.4 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 34/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract
0 / 15
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
24
Jones Lang LaSalle Thin agent ready Commercial Real Estate
Jones Lang LaSalle Incorporated (JLL) is a global commercial real estate services company offering investment management, property management, and facility s...
Composite
34.0
Agent
48.1
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 34.0/100 · thin
Contract Quality
12.6 / 25
Developer Ergonomics
2.2 / 20
Commercial Clarity
5.8 / 20
Operational Transparency
3.4 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
25
Follow Up Boss Thin agent aware Agency CRM & Transaction Technology
Follow Up Boss is a real estate CRM and lead management platform helping agents and teams capture leads from any source, automate follow-up via texts, emails...
Composite
32.0
Agent
41.3
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 32.0/100 · thin
Contract Quality
12.0 / 25
Developer Ergonomics
5.2 / 20
Commercial Clarity
2.1 / 20
Operational Transparency
2.7 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 41/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract
15 / 15
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
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
Emerging 15 15–29.9 More than an index entry but still mostly links rather than artifacts.
26
MLS Grid Emerging agent aware Listing Data Infrastructure
The MLS Grid is a United States MLS data-distribution cooperative created by a network of Multiple Listing Services to give brokers, MLSs and technology vend...
Composite
29.0
Agent
30.8
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 29.0/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
7.0 / 20
Commercial Clarity
8.4 / 20
Operational Transparency
2.7 / 13
Governance
1.6 / 12
Discoverability
9.3 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 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
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
27
Zillow Emerging human only Portals & Marketplaces
Zillow is the largest U.S. real-estate marketplace, offering home and rental listings, Zestimate home value estimates, mortgage tools, and a connected agent ...
Composite
28.2
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 28.2/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
4.8 / 20
Commercial Clarity
10.0 / 20
Operational Transparency
3.4 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
28
RE/MAX Emerging agent aware Brokerages & Agencies
RE/MAX Holdings, Inc. (NYSE: RMAX, SIC 6531, Denver, Colorado) is one of the world's largest real estate brokerage franchisors, licensing the RE/MAX brand to...
Composite
26.7
Agent
37.5
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 26.7/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
11.3 / 20
Commercial Clarity
2.1 / 20
Operational Transparency
0.0 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Regulatory · Securities & Market Data
6.9 / 15
Agent readiness — 38/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
12 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
29
Opendoor Emerging human only iBuyers & Instant Offers
Opendoor is an iBuyer that lets U.S. homeowners request a near-instant cash offer on their home, sell directly to Opendoor, list with Opendoor through its ag...
Composite
24.0
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 24.0/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
1.3 / 20
Commercial Clarity
10.0 / 20
Operational Transparency
3.4 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
30
Entrata Emerging human only Property Management
Entrata is a property management platform for multifamily housing that provides an all-in-one operating system for autonomous property management. Its REST A...
Composite
23.0
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 23.0/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
2.2 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
5.5 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Regulatory · Payments
2.0 / 15
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
31
Zumper Emerging human only Rentals & Listings
Zumper is a rental listing marketplace that connects renters with landlords and property managers across the United States and Canada. The platform provides ...
Composite
22.7
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 22.7/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
1.3 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
0.0 / 13
Governance
0.0 / 12
Discoverability
9.3 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
32
First American Financial Emerging human only Title, Escrow & Closing
First American Financial is a leading provider of title insurance, settlement services, and risk solutions for real estate transactions, as well as related p...
Composite
22.2
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 22.2/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
2.2 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
4.1 / 13
Governance
0.0 / 12
Discoverability
8.0 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
33
Homes.com Emerging human only Portals & Marketplaces
Homes.com is a United States residential real estate portal owned by CoStar Group, which acquired the property in 2021 and folded the Homesnap agent applicat...
Composite
22.2
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 22.2/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
1.3 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
2.1 / 13
Governance
0.0 / 12
Discoverability
6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
34
Qualia Emerging human only Title, Escrow & Closing
Qualia is a digital real estate closing platform for the title, escrow, and settlement industry, connecting title agents, lenders, real estate agents, and ho...
Composite
21.6
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 21.6/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
2.2 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
2.7 / 13
Governance
0.0 / 12
Discoverability
8.8 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
35
CoStar Group Emerging human only Commercial Real Estate
CoStar Group is the dominant commercial and residential real estate data, analytics, and marketplace company. The portfolio spans the flagship CoStar commerc...
Composite
20.1
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 20.1/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
0.0 / 20
Commercial Clarity
7.4 / 20
Operational Transparency
2.7 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
36
RealPage Emerging human only Property Management
RealPage is a multifamily and rental-housing software company offering property management, marketing, leasing, resident experience, accounting, facilities, ...
Composite
19.8
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 19.8/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
1.3 / 20
Commercial Clarity
5.8 / 20
Operational Transparency
2.7 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
37
Buildium Emerging human only Property Management
Buildium, part of RealPage, is a cloud property-management platform aimed at small and mid-sized residential, association, and community-association property...
Composite
19.0
Agent
6.7
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 19.0/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
0.4 / 20
Commercial Clarity
5.8 / 20
Operational Transparency
2.7 / 13
Governance
0.0 / 12
Discoverability
10.0 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 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
38
Apartments.com Emerging human only Rentals & Listings
Apartments.com is the largest United States rental-listings marketplace, owned by CoStar Group since its 2014 acquisition and operated from Arlington, Virgin...
Composite
16.9
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 16.9/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
2.6 / 20
Commercial Clarity
6.8 / 20
Operational Transparency
0.7 / 13
Governance
0.0 / 12
Discoverability
6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
39
Douglas Elliman Emerging human only Brokerages & Agencies
Douglas Elliman Inc. (NYSE: DOUG) is a residential real estate brokerage founded in 1911 and headquartered at 575 Madison Avenue, New York City. It is one of...
Composite
16.5
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 16.5/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
0.4 / 20
Commercial Clarity
4.2 / 20
Operational Transparency
0.7 / 13
Governance
0.0 / 12
Discoverability
6.8 / 10
Regulatory · Securities & Market Data
6.2 / 15
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
40
Compass Emerging human only Brokerages & Agencies
Compass is a leading real estate technology company headquartered in New York City that provides a tech-enabled brokerage platform connecting agents, buyers,...
Composite
15.1
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 15.1/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
0.4 / 20
Commercial Clarity
4.2 / 20
Operational Transparency
0.7 / 13
Governance
0.0 / 12
Discoverability
4.8 / 10
Regulatory · Securities & Market Data
6.5 / 15
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
Minimal 5 0–14.9 Index entry only; little beyond a description and a link.
41
eXp World Holdings Minimal human only Brokerages & Agencies
eXp World Holdings is the holding company for a portfolio of cloud-based, agent-centric real estate and technology businesses including eXp Realty, eXp Comme...
Composite
13.2
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 13.2/100 · minimal
Contract Quality
0.0 / 25
Developer Ergonomics
0.0 / 20
Commercial Clarity
4.2 / 20
Operational Transparency
0.0 / 13
Governance
0.0 / 12
Discoverability
6.0 / 10
Regulatory · Securities & Market Data
4.6 / 15
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
42
AppFolio Minimal human only Property Management
AppFolio is a Santa Barbara, California cloud-based real estate technology company providing property management software to residential, commercial, communi...
Composite
12.6
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 12.6/100 · minimal
Contract Quality
0.0 / 25
Developer Ergonomics
3.0 / 20
Commercial Clarity
2.1 / 20
Operational Transparency
0.7 / 13
Governance
0.0 / 12
Discoverability
6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
43
Doma Minimal human only Title, Escrow & Closing
Doma is a technology company transforming the mortgage closing process with an AI-first platform for title insurance, title and closing services, and title a...
Composite
11.8
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 11.8/100 · minimal
Contract Quality
0.0 / 25
Developer Ergonomics
0.9 / 20
Commercial Clarity
4.2 / 20
Operational Transparency
0.0 / 13
Governance
0.0 / 12
Discoverability
6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
44
Realtor.com Minimal human only Portals & Marketplaces
Realtor.com is a real estate listings website operated by Move, Inc., a subsidiary of News Corp, headquartered in Santa Clara, California. The platform is th...
Composite
7.9
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 7.9/100 · minimal
Contract Quality
0.0 / 25
Developer Ergonomics
0.4 / 20
Commercial Clarity
0.0 / 20
Operational Transparency
0.7 / 13
Governance
0.0 / 12
Discoverability
6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
45
Fidelity National Financial Minimal human only Title, Escrow & Closing
Fidelity National Financial (FNF) is a leading provider of title insurance, escrow, and other title-related services, as well as transaction services to the ...
Composite
6.8
Agent
0.0
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality
0.0 / 25
Developer Ergonomics
0.0 / 20
Commercial Clarity
0.0 / 20
Operational Transparency
0.0 / 13
Governance
0.0 / 12
Discoverability
6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3