established · 0.8 capability resource

Attributes

Score 25.9 / 100 47 providers 47 APIs Search apis.io →
Variants seen in the corpus: Attributesattributes

Providers using this tag (47)

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

Exemplar 2 Complete, well-documented, and agent-ready
OptimizelyA/B TestingContent ManagementCustomer DataE-Commerce50 APIs75.1Talon.OnePromotionsLoyaltyCouponsIncentives5 APIs72.6
Strong 7 Solid coverage with minor gaps
SwellCommerceHeadless CommerceAPI-FirstB2C34 APIs65.8FactsetFinancialFinancial DataInvestment AnalyticsMarket Data460 APIs64.8AvalaraTaxes73 APIs63.6MediaValetDigital Asset ManagementDAMMediaAssets29 APIs62.9ApigeeAdvanced API SecurityAgentic AIAnalyticsAPI Gateway40 APIs59.5mParticleCustomer Data PlatformCDPAnalyticsIdentity Resolution6 APIs57.2DatadogAnalyticsDashboardsMonitoringPlatform290 APIs57.1
Developing 19 Usable, with meaningful gaps to close
EPA — U.S. Environmental Protection AgencyGovernmentEnvironmentalOpen DataAir Quality137 APIs53.7OracleCloudDatabaseEnterpriseInfrastructure378 APIs53.0TetraScienceScientific DataLife SciencesPharmaBiotech35 APIs52.9Cart.comCompanyE-CommerceRetailOrder Management1 API52.7CubeCompanyFP&AFinancial PlanningFinance42 APIs52.5FortifyApplication SecurityDASTDevSecOpsSAST42 APIs51.9ErplyRetailPoint-of-SaleInventoryProduct Information Management64 APIs49.9SodaData QualityData ObservabilityData ContractsData Testing13 APIs47.7Cube PlanningCompanyFP&AFinancial PlanningFinance42 APIs47.0CrossEngageCompanyCustomer Data PlatformMarketingCustomer Engagement6 APIs46.7vivenuCompanyEvent TicketingTicketingEvent73 APIs46.2WorkleapEmployee ExperienceHREngagementPulse Surveys7 APIs45.1BigCommerceE-CommerceRetailCatalogOrder161 APIs43.9LooksRareNFTMarketplaceEthereumWeb38 APIs43.5Stadia MapsMappingMapsGeocodingRouting11 APIs43.5WidenDigital Asset ManagementDAMMediaAssets17 APIs43.2SplitExperimentationFeature FlagsFeature ManagementRollouts21 APIs42.0MemberClicksMembership ManagementAssociation ManagementAMSNon-Profit8 APIs40.3ZalandoCompanyConsumer; MarketplaceFashionE-Commerce20 APIs39.8
Thin 15 Limited public surface area
JAGGAERProcurementSourcingSupplier ManagementContracts16 APIs38.9Precisely APIsGeolocationAddress VerificationGeocodingDemographics81 APIs38.9Fortify SoftwareCompanySecurityApplication SecurityAppSec28 APIs38.2osisoft-pi10 APIs37.7fabricCommerceComposable CommerceHeadless CommerceE-Commerce61 APIs36.8SertifierDigital CredentialsCertificatesBadgesOpen Badges9 APIs36.7NetterCompanyDataData PlatformAnalytics44 APIs36.4contentstack45 APIs36.3SamsaraAsset TrackingConnected OperationsELDFleet Management90 APIs34.1AkeneoProduct Information ManagementPIMProduct DataCatalog Management15 APIs31.4AttioCRMSalesContactsCompanies16 APIs30.5GrowthBookFeature FlagsExperimentationOpen-SourceA/B Testing36 APIs30.2EmbatCompanyFintechTreasury ManagementPayments22 APIs29.2MojangGames And ComicsMinecraftGamingIdentity14 APIs27.8hotjar7 APIs27.7
Emerging 4 Early or largely undocumented
FIWAREContext InformationDevicesInternet of ThingsLinked Data15 APIs25.2SodaAIOpsData Quality6 APIs20.1LazadaE-CommerceMarketplaceSoutheast AsiaAlibaba12 APIs19.7NUnit.NETC#FrameworkOpen-Source4 APIs13.9

APIs with this tag (47)

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 2 Complete, well-documented, and agent-ready
Optimizely Attributes APIManage custom attributes used for audience targeting and segmentation.75.1Talon.One Management APIBack-office Management API that programmatically does what the Campaign Manager UI does: applications, camp...72.6
Strong 7 Solid coverage with minor gaps
Swell Attributes APIProduct attributes used for filtering and faceted search.65.8Factset Attributes APIThe Attributes API from Factset — 7 operation(s) for attributes.64.8Avalara Attributes APIManage certificate attributes and custom fields63.6MediaValet Attributes APICustom metadata attribute definitions, their data types (including the Status type added in API version 1.1...62.9Apigee Attributes APIManage custom attributes59.5mParticle Profile APIREST API for retrieving unified user profiles, identities, attributes, and audience memberships at scale to...57.2Datadog Attributes APIThe Attributes API from Datadog — 1 operation(s) for attributes.57.1
Developing 19 Usable, with meaningful gaps to close
EPA — U.S. Environmental Protection Agency Attributes APIThe Attributes API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for attributes.53.7Oracle Attributes APIThe attributes API from Oracle — 8 operation(s) for attributes.53.0TetraScience Attributes APIThe Attributes API from TetraScience — 2 operation(s) for attributes.52.9Cart.com Online Store APIThe Cart.com Online Store API (formerly the AmeriCommerce REST API) is a JSON REST API scoped to a single m...52.7Cube Attributes APIAttributes are additional metadata that can be applied to values in the cube. They show up as additional co...52.5Fortify Attributes APIManage application attributes51.9Erply Attributes APIAttributes are attached to entities. The possible entities are: product, recipe, warehouse location, assort...49.9Soda Attributes APICustom attribute management for datasets, checks, and columns47.7Cube Planning Attributes APIAttributes are additional metadata that can be applied to values in the cube. They show up as additional co...47.0CrossEngage User Management API v1Synchronous predecessor to v2, still fully documented and still monitored as its own status-page component....46.7vivenu attributes APIThe attributes API from vivenu — 2 operation(s) for attributes.46.2Workleap Attributes APIUser and system attribute management45.1BigCommerce Attributes APIThe Attributes API from BigCommerce — 1 operation(s) for attributes.43.9LooksRare Tokens APIRetrieve NFT token metadata including token details, collection information, and token attributes for any t...43.5Stadia Maps Attributes APIThe Attributes API from Stadia Maps — 1 operation(s) for attributes.43.5Widen Attributes APIList product attributes and controlled vocabulary values.43.2Split Attributes APIManage attributes used in targeting rules for feature flag definitions.42.0MemberClicks Attributes APIProfile schema - built-in and custom fields.40.3Zalando Attributes APIThe Attributes API from Zalando — 2 operation(s) for attributes.39.8
Thin 15 Limited public surface area
JAGGAER Attributes APIEvent attribute management38.9Precisely APIs Attributes APIThe Attributes API from Precisely APIs — 1 operation(s) for attributes.38.9Fortify Software Attributes APIThe Attributes API from Fortify Software — 2 operation(s) for attributes.38.2osisoft-pi Attributes APIAF attribute management37.7fabric Attributes APIItem attributes are the objective and factual descriptions of items that shoppers see when they browse thro...36.8Sertifier Attributes APIReusable custom key/value fields merged into credentials.36.7Netter attributes APIThe attributes API from Netter — 6 operation(s) for attributes.36.4contentstack Attributes APIAttributes represent individual user data characteristics such as age, location, or browsing history used t...36.3Samsara Attributes APIThe Attributes API from Samsara — 2 operation(s) for attributes.34.1Akeneo Attributes APIThe Attributes API from Akeneo — 2 operation(s) for attributes.31.4Attio Attributes APIThe Attributes API from Attio — 2 operation(s) for attributes.30.5GrowthBook attributes APIUsed when targeting feature flags and experiments.30.2Embat Attributes API`Attribute` represents a custom field that you can define once and then use to tag records across Embat, su...29.2Mojang Attributes APIProfanity filter, friends, chat preferences27.8Hotjar Identify APIThe Hotjar Identify API is a client-side JavaScript API that allows developers to pass user data to Hotjar,...27.7
Emerging 4 Early or largely undocumented
FIWARE Attributes APIThe Attributes API from FIWARE — 1 operation(s) for attributes.25.2Soda Attributes APIThe Attributes API from Soda — 2 operation(s) for attributes.20.1Lazada Category APIRetrieve Lazada's hierarchical category tree, category attributes, and category-specific attribute values u...19.7NUnit Framework APIThe core NUnit testing framework programming API for writing and executing unit tests in .NET applications....13.9

Score breakdown

Frequency
55.6
log-scaled weighted occurrences
Breadth
1.3
spread across providers
Quality lift
54.0
mean composite of providers using it
Cohesion
5.9
strength of nearest seed neighbor

Related tags

Types 5 co-occurrences Coupons 6 co-occurrences Segmentation 5 co-occurrences Addresses 6 co-occurrences Promotions 5 co-occurrences Categories 11 co-occurrences Returns 5 co-occurrences Segments 5 co-occurrences

Where this tag comes from

Api tag46
Openapi tag38
Openapi op tag141

Cohort brief

Auto-generated

The 47 providers in the APIs.io catalog tagged Attributes, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
47
all scored
Mean Kin Score
43.9
+23.2 vs catalog 20.7
Mean Agent Readiness
27.5
+17.8 vs catalog 9.7
Spread
13.9–75.1
median 43.5 · σ 13.6
How the 47 split by band
Exemplar 2Strong 7Developing 19Thin 15Emerging 4Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 54.8 17.5 +37.3 47
Developer Ergonomics 43 17.9 +25.1 47
Operational Transparency 30.2 11.3 +18.9 47
Access Clarity 40.3 22.3 +18 47
Contract Governance 18.9 6.4 +12.5 47
Discoverability 71 60.4 +10.6 47

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) 40% 16% +24
MCP server (first-party) 9% 7% +2
Agent Skills 0% 0% 0
OAuth scopes 30% 9% +21
Security 100% 88% +12
Arazzo workflows 11% 2% +9
Governance rules 47% 13% +34

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 Optimizely 75.1
  2. 2 Talon.One 72.6
  3. 3 Swell 65.8
  4. 4 Factset 64.8
  5. 5 Avalara 63.6
  6. 6 MediaValet 62.9
  7. 7 Apigee 59.5
  8. 8 mParticle 57.2
  9. 9 Datadog 57.1
  10. 10 EPA — U.S. Environmental Protection Agency 53.7
Top by Agent Readiness
  1. 1 Factset 52.8
  2. 2 mParticle 50.5
  3. 3 Avalara 46.9
  4. 4 Talon.One 45.2
  5. 5 Oracle 41.9
  6. 6 Optimizely 39.4
  7. 7 Datadog 38.3
  8. 8 Cube 36.4
  9. 9 Cube Planning 36.4
  10. 10 BigCommerce 36
All 47 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 25 August 2026, across 26891 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.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/attributes"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/attributes"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/attributes/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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