niche · 0.1

Valuation

Score 20.1 / 100 45 providers +8 via APIs 21 APIs Search apis.io →

Providers using this tag (45)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 1 Solid coverage with minor gaps
ZillapiReal-EstatePropTechProperty DataZillow1 API61.7
Developing 13 Usable, with meaningful gaps to close
Street.co.ukReal-EstateUnited KingdomPropTechCRM6 APIs54.073 StringsPrivate MarketsPortfolio MonitoringPrivate Equity6 APIs52.7Lone Wolf TechnologiesReal-EstateUnited StatesPropTechTransaction6 APIs51.4Landmark Information GroupReal-EstateUnited KingdomPropTechProperty Data5 APIs51.2Domain GroupReal-EstateAustraliaProperty ListingsProperty Data3 APIs48.0EstatedProperty DataReal-EstateProperty RecordsAssessor1 API47.2HometrackReal-EstateUnited KingdomPropTech6 APIs43.8ARGUS EnterpriseAltus GroupAsset ManagementCash Flow ModelingCommercial Real Estate2 APIs42.3Zillow GroupReal-EstateProperty DataMLSMortgage17 APIs41.3Slope SoftwareCompanyActuarialInsuranceActuarial Modeling1 API41.1EquipmentwatchConstructionEquipmentRental Rates1 API41.0LandgateReal-EstateAustraliaLand RegistryTitle10 APIs40.9RentCastReal-EstateProperty DataRental Market1 API39.9
Thin 17 Limited public surface area
SpriftReal-EstateUnited KingdomPropTechProperty Data1 API38.6RealtyMoleReal-EstateProperty DataRental Estimate1 API38.5WahiReal-EstateCanadaProperty ListingsMLS1 API38.0Landcor DataReal-EstateCanadaAVM1 API37.3PricefinderReal-EstateAustraliaPropTechProperty Data2 APIs35.3HouseCanaryReal-EstateProperty AnalyticsAVM2 APIs35.1CBREAnalyticsCommercial Real EstateFacilities ManagementFortune 5001 API34.2RICS (Royal Institution of Chartered Surveyors)Real-EstateUnited KingdomIndustry Body1 API32.4Apex27Real-EstateUnited KingdomPropTechProperty Listings2 APIs32.3RealEstateAPIReal-EstateProperty DataMLS1 API32.3HouseSigmaReal-EstateCanadaProperty ListingsMLS1 API32.0Clear CapitalReal-EstateProperty DataAVM1 API30.2TwentyCiReal-EstateUnited KingdomPropTechProperty Data2 APIs29.8ARGUSAltus GroupAsset ManagementCommercial Real EstateFund Management5 APIs29.3CoreLogic AustraliaReal-EstateAustraliaProperty Data26 APIs27.6Knight FrankReal-EstateUnited KingdomProperty ListingsCommercial Real Estate1 API27.3TeranetReal-EstateCanadaLand RegistryTitle1 API26.3
Emerging 9 Early or largely undocumented
Connells GroupReal-EstateUnited KingdomProperty ListingsBrokerage1 API24.1ReggoraAppraisal ManagementMortgageLendingReal-Estate8 APIs22.2RE/MAX CanadaReal-EstateCanadaBrokerageProperty Listings1 API22.1PropertymarkReal-EstateUnited KingdomIndustry BodyEstate Agents18.0True FootageCompanyReal-EstateAppraisal2 APIs17.9CBRE AustraliaReal-EstateAustraliaCommercial Real EstateProperty Listings13.1ZoloReal-EstateCanadaProperty ListingsMLS12.9Ray WhiteReal-EstateAustraliaBrokerageProperty Listings11.7Bowery ValuationCompanyReal-EstateCommercial Real EstateAppraisal11.3
Minimal 5 Almost no public developer surface
Argus SoftwareCompanyReal-EstateCommercial Real EstatePropTech9.8SavillsReal-EstateUnited KingdomCommercial Real EstateProperty Listings8.7Khmer HomeCompanyReal-EstatePropertyMarketplace7.6ProperlyReal-EstateCanadaProperty ListingsMLS5.6Newmark GroupCommercial Real EstateCapital MarketsLeasing5.0

APIs with this tag (21)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 3 Complete, well-documented, and agent-ready
CarsXE Market Value APIVehicle market valuation — 2 operations (getMarketValue v1, getMarketValueV2) returning wholesale, retail a...74.2CarsXE Vehicle Market Value APIReturns market value estimates (retail, wholesale, trade-in) for new and used vehicles by VIN, informed by ...74.2Factset Valuation APIThe Valuation API from Factset — 1 operation(s) for valuation.67.7
Strong 1 Solid coverage with minor gaps
UK House Price Index Linked Data APIW3C Linked Data API over the UK House Price Index, the official house price statistic calculated by the Off...56.2
Developing 4 Usable, with meaningful gaps to close
Hometrack Valuation APIThe Valuation API from Hometrack — 1 operation(s) for valuation.43.8Zillow Zestimate APIRESTful JSON API returning Zillow property, rental and foreclosure Zestimates for approximately 100 million...41.3Redfin Valuation APIEndpoints for automated valuation model (AVM) data and estimates.41.2EquipmentWatch Values APICurrent and trended market values for heavy equipment — Fair Market Value (FMV), Forced Liquidation Value (...41.0
Thin 8 Limited public surface area
Landcor Data Valuation APIThe Valuation API from Landcor Data — 5 operation(s) for valuation.37.3HouseCanary Analytics APIREST API providing property-level data including AVM valuations, rental value, land value, LTV, sales histo...35.1Purplebricks Valuation APIThe Valuation API from Purplebricks — 4 operation(s) for valuation.34.9Clear Capital ClearAVM / Valuation APILending-grade automated valuation model (ClearAVM) and Rental AVM delivered over a RESTful interface, retur...30.2ARGUS EnterpriseThe industry-standard commercial property valuation and cash flow forecasting software providing lease-by-l...29.3CoreLogic Australia AVM APIIntelliVal automated valuation model — the valuation engine at the centre of CoreLogic Australia's mortgage...27.6CoreLogic Australia AVM Report APIReport rendering for IntelliVal automated valuations — the document form of the AVM number rather than the ...27.6CoreLogic Australia PSX APIPSX is CoreLogic Australia's valuation ordering exchange, connecting lenders and brokers to panels of licen...27.6
Emerging 4 Early or largely undocumented
TrueEngine APIA second production True Footage platform API, discovered through Certificate Transparency (api.trueengine....17.9TrueTracts APIBackend API for the TrueTracts appraiser console — the subscription platform that performs market definitio...17.9PropTrack APIsREST APIs providing Australian property intelligence — address suggestion and matching, property and listin...17.4vAuto Appraisal APIPartner-gated API that lets authorized integrators programmatically create and access vehicle appraisals in...13.1
Minimal 1 Almost no public developer surface
IntegrationsPre-built integrations across credit bureaus (FICO LiquidCredit, PayNet, D&B, Experian, Equifax, TransUnion...9.5

Companies reaching this through an API (8)

These companies publish an API, specification or operation carrying “Valuation” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

CarsXE Factset HM Land Registry Odessa Technologies PropTrack Purplebricks Redfin vAuto

Score breakdown

Frequency
50.7
log-scaled weighted occurrences
Breadth
1.2
spread across providers
Quality lift
35.4
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

AVM 18 co-occurrences Property Data 22 co-occurrences Conveyancing 12 co-occurrences Property Listings 18 co-occurrences Land Registry 10 co-occurrences Rentals 20 co-occurrences Title 7 co-occurrences Commercial Real Estate 13 co-occurrences

Where this tag comes from

Provider tag45
Api tag21
Openapi tag5
Openapi op tag14

Cohort brief

Auto-generated

The 45 providers in the APIs.io catalog tagged Valuation, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
45
all scored
Mean Kin Score
31.2
+7.3 vs catalog 23.9
Mean Agent Readiness
20.8
+8.8 vs catalog 12
Spread
5–61.7
median 32.3 · σ 14.3
How the 45 split by band
Exemplar 0Strong 1Developing 13Thin 17Emerging 9Minimal 5
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 32.8 19.8 +13 45
Developer Ergonomics 30.9 23.4 +7.5 45
Discoverability 67.5 61.2 +6.3 45
Access Clarity 32.2 26.5 +5.7 45
Contract Governance 8.5 6.4 +2.1 45
Operational Transparency 15.6 14 +1.6 45

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 9% 10% -1
MCP server (first-party) 7% 13% -6
Agent Skills 0% 0% 0
OAuth scopes 22% 11% +11
Security 100% 97% +3
Arazzo workflows 11% 2% +9
Governance rules 7% 14% -7

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Zillapi 61.7
  2. 2 Street.co.uk 54
  3. 3 73 Strings 52.7
  4. 4 Lone Wolf Technologies 51.4
  5. 5 Landmark Information Group 51.2
  6. 6 Domain Group 48
  7. 7 Estated 47.2
  8. 8 Hometrack 43.8
  9. 9 ARGUS Enterprise 42.3
  10. 10 Zillow Group 41.3
Top by Agent Readiness
  1. 1 Zillapi 59.5
  2. 2 Lone Wolf Technologies 49.3
  3. 3 Landmark Information Group 45.9
  4. 4 Domain Group 43.3
  5. 5 Landgate 39
  6. 6 Hometrack 38.7
  7. 7 Connells Group 33.1
  8. 8 73 Strings 31.5
  9. 9 Estated 31
  10. 10 Street.co.uk 30.4
All 45 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 15 September 2026, across 27661 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

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Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

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This tag 
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All tags 
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As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/valuation"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/valuation/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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