emerging · 0.9

Single Sign-On

Score 22.8 / 100 58 providers 31 APIs Search apis.io →
Variants seen in the corpus: Single Sign OnSingle Sign-OnSingleSignOnsingle-sign-on

Providers using this tag (58)

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

Exemplar 1 Complete, well-documented, and agent-ready
iOSiOSAppleMobileApp Store199 APIs67.9
Strong 4 Solid coverage with minor gaps
KindeAuthenticationAuthorizationCustomer IdentityIdentity Management31 APIs62.9GoFundMeFundraisingNon-ProfitCrowdfundingDonations72 APIs57.7TykAPI GatewayAPI ManagementGraphQLOpen-Source39 APIs57.7OktaIdentityWorkforce IdentityCustomer IdentityAuthentication28 APIs57.6
Developing 20 Usable, with meaningful gaps to close
Lone Wolf TechnologiesReal-EstateUnited StatesPropTechTransaction7 APIs53.5DNAnexusCompanyGenomicsBioinformaticsLife Sciences2 APIs53.0Microsoft Azure Active DirectoryAuthenticationAuthorizationIdentityMicrosoft12 APIs52.8PJM InterconnectionEnergyUnited StatesEnergy MarketsElectricity6 APIs52.1PlanSourceEmployee BenefitsBenefits AdministrationInsuranceHuman Resources13 APIs52.1ID.meCompanyIdentityIdentity VerificationAuthentication2 APIs51.7Cirrus IdentityCompanyIdentityAuthentication1 API51.0CleverEducationK-12EdTech11 APIs50.9Amazon IAM Identity CenterAccess ControlAuthenticationIdentity Management56 APIs49.4ArangoDBCompanyDatabaseGraph DatabaseMulti-Model Database24 APIs48.9ZitadelAuthenticationAuthorizationIdentity ManagementOpen-Source11 APIs48.0VMwareCloud ComputingContainer ManagementHybrid CloudInfrastructure59 APIs47.7American Express Global Business TravelTravelUnited StatesCorporate TravelTravel Management17 APIs47.6ServiceChannelCompanyServicesFacilities ManagementWork Orders66 APIs45.5SK TelecomTelecommunicationsSouth KoreaMobile Network OperatorNetwork APIs15 APIs44.5SecuritizeTokenizationDigital SecuritiesReal World AssetsCapital Markets7 APIs43.9Azure Active DirectoryAuthenticationAuthorizationIdentityOpenID Connect6 APIs42.8FusionAuthAuthenticationAuthorizationIdentityCIAM37 APIs42.2CareAcademyCompanyTrainingEducationCompliance5 APIs41.4vLexArtificial IntelligenceClassificationLegal ResearchLegal Tech6 APIs39.3
Thin 17 Limited public surface area
Strata IdentityCompanyIdentityIdentity OrchestrationAuthentication1 API36.9ClassLinkEdTechEducationIdentity4 APIs36.5AppboxoCompanySuper AppMini AppsMobile SDK36.3Steadfast GroupInsuranceAustraliaBrokersInsurance Broker Network2 APIs34.5PingOneIdentityAuthenticationAuthorization7 APIs33.7NoRedInkCompanyEducationEdTechEnglish Language Arts1 API33.1SSOAuthenticationAuthorizationIdentityOIDC8 APIs32.0OneLoginIdentityAccess ManagementMulti-Factor Authentication6 APIs31.3AristCompanyLearningTrainingEnablement2 APIs30.5LingvistCompanyEducationLanguage LearningEdTech1 API30.4SAMLAuthenticationAuthorizationFederationIdentity Management3 APIs29.5WebsiteProsCompanyWebsite BuilderWeb HostingDomains1 API28.7CentrifyCompanyIdentityPrivileged Access ManagementAccess Management1 API28.3QlikViewAnalyticsBusiness IntelligenceDashboardsData Discovery10 APIs27.7CyberArk IdentityIdentityAccess ManagementIAM8 APIs27.3Lingco Language LabsCompanyEducationEdTechLanguage Learning1 API27.3nibInsuranceAustraliaHealth InsuranceCarrier1 API26.4
Emerging 14 Early or largely undocumented
CasdoorAuthenticationAuthorizationIAMIdentity15 APIs25.2PackbackEducationEdTechArtificial IntelligenceDiscussion3 APIs24.3Epic GamesGame ServicesGamingCross-PlatformAchievements10 APIs23.6ImprivataCompanyIdentityAccess ManagementAuthentication23.6SaleoCompanySales TechDemo AutomationSales Enablement1 API20.5GigyaCompanyIdentityAuthenticationCIAM1 API18.0DexAuthenticationConnectorsFederationgRPC1 API17.4Chulalongkorn UniversityEducationHigher EducationUniversityThailand3 APIs17.3InkSoftCustom ApparelE-CommerceOnline StoresPrint Shop4 APIs16.6easyJetTravelUnited KingdomAviationAirline1 API14.2Siemens HealthineersHealthcareMedical ImagingLaboratory DiagnosticsCancer Care14 APIs13.4LDAPAuthenticationAuthorizationDirectory ServicesIdentity Management1 API12.5Rockstar GamesGamingEntertainmentVideo GamesGrand Theft Auto3 APIs12.4EverySim Inc.CompanyAuthenticationOpenID Connect11.1
Minimal 2 Almost no public developer surface
idsmanagerCompanyIdentityAuthenticationAuthorization5.0OpenNetwork Tech.CompanyIdentityWeb Access Management5.0

APIs with this tag (30)

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 1 Complete, well-documented, and agent-ready
Sign in with Apple REST APISign in with Apple is Apple's OpenID Connect-style identity provider for iOS, web, and other Apple-platform...67.9
Strong 2 Solid coverage with minor gaps
Classy Login (OpenID Connect SSO)GoFundMe Pro's single sign-on service, implemented against OpenID Connect, letting third-party apps registe...57.7Tyk Single Sign On APIThe Dashboard SSO API allows you to implement custom authentication schemes for the Dashboard and Portal. O...57.7
Developing 13 Usable, with meaningful gaps to close
Lone Wolf TransactionDesk Partner APIPartner API for the TransactionDesk edition of Lone Wolf Transactions, covering transaction summaries, docu...53.5DNAnexus OpenID Connect ProviderDNAnexus operates an OpenID Connect provider that lets third-party web applications sign users in with thei...53.0PJM Browserless Authentication APIThe REST authentication front door for every browserless/API integration with PJM eTools. A client POSTs to...52.1Clever Single Sign-On APIOAuth 2.0, OIDC, and SAML-based single sign-on integration that enables application partners to authenticat...50.9Arango Managed Platform SCIM APISCIM 2.0 user and group provisioning endpoint for Arango Managed Platform organizations, used to synchroniz...48.9Zitadel SAML APIZitadel provides SAML 2.0 single sign-on support, enabling enterprises to integrate with Zitadel using SAML...48.0VMware Identity Manager APIAPI for VMware Identity Manager providing identity and access management capabilities including authenticat...47.7Egencia Context SSO APISingle sign-on entry point that carries contextual data into the Egencia booking flow at authentication tim...47.6Egencia User Sync APISCIM-based user provisioning for an Egencia corporate travel programme. Egencia's own overview states the A...47.6ServiceChannel SingleSignOn APIThe SingleSignOn API from ServiceChannel — 4 operation(s) for singlesignon.45.5SK Telecom T ID Login APIT ID is SK Telecom's federated identity service, the single sign-on used across SK Telecom and SK affiliate...44.5Securitize Connect API (Securitize iD)OAuth-based identity API that lets partners add "Log in with Securitize iD" to their own application and, w...43.9vLex Remote Authentication APISingle sign-on authentication API for corporate vLex accounts. Generates redirect URLs using HMAC authentic...39.3
Thin 7 Limited public surface area
Steadfast Identity (OpenID Connect)Steadfast Group's Okta-hosted OpenID Connect provider, issuer https://idp.steadfast.com.au. It fronts the c...34.5NoRedInk OAuth & OpenID ConnectNoRedInk's OAuth 2.0 authorization server with OpenID Connect on top, used for single sign-on and partner/c...33.1Arist Identity (OIDC)Arist runs its customer-facing authentication on an Auth0 tenant at auth.arist.app. The tenant publishes an...30.5Lingvist Learn APIThe OAuth 2.0 protected API behind the Lingvist learning platform. Lingvist publishes no reference document...30.4Web.com International Platform APIThe partner-facing API for Web.com's International ("NTS") platform, fronted by Azure API Management. Ten d...28.7QlikView Authentication API (Ticket API)Authentication API providing Custom Ticket Exchange (CTE) for secure single sign-on access to QlikView Serv...27.7nib Identity (OpenID Connect)The Auth0-backed OpenID Connect tenant behind nib member sign-in, issuer https://id.nib.com.au/. It is the ...26.4
Emerging 7 Early or largely undocumented
Packback LTI IntegrationPackback's integration surface is the IMS Global LTI standard (1EdTech certified for LTI 1.0, 1.2, and 1.3 ...24.3Epic Account Services APIEpic Account Services (EAS) provides authentication and identity for players using Epic Games accounts. Sup...23.6Chula SSO Authentication APISingle sign-on authentication service for Chulalongkorn University, allowing applications to securely authe...17.3InkSoft Users & SSO APIProvision and link InkSoft user accounts for single sign-on. The documented CreateUser method creates an In...16.6easyJet Brand Widget Service (easyDom)easyJet's hosted client-side widget platform for partner and white-label sites. Each widget is a script tag...14.2teamplay Single Sign-On APIAuthentication and identity federation surface that lets partner applications running on the teamplay digit...13.4Rockstar Games Sign-In (OpenID Connect)Public OpenID Connect / OAuth 2.0 identity provider operated by Rockstar Games at signin.rockstargames.com....12.4

Score breakdown

Frequency
49.2
log-scaled weighted occurrences
Breadth
1.6
spread across providers
Quality lift
43.1
mean composite of providers using it
Cohesion
9.9
strength of nearest seed neighbor

Related tags

Multi-Factor Authentication 8 co-occurrences OpenID Connect 18 co-occurrences SAML 10 co-occurrences Identity Management 7 co-occurrences IAM 6 co-occurrences OIDC 6 co-occurrences Authorization 17 co-occurrences Identity 36 co-occurrences

Where this tag comes from

Provider tag33
Api tag31
Openapi tag1
Openapi op tag2

Cohort brief

Auto-generated

The 58 providers in the APIs.io catalog tagged Single Sign-On, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
58
all scored
Mean Kin Score
35.4
+14.7 vs catalog 20.7
Mean Agent Readiness
19.8
+10.1 vs catalog 9.7
Spread
5–67.9
median 34.1 · σ 15.4
How the 58 split by band
Exemplar 1Strong 4Developing 20Thin 17Emerging 14Minimal 2
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 36.8 17.9 +18.9 58
Contract Quality 32 17.5 +14.5 58
Discoverability 71.9 60.4 +11.5 58
Access Clarity 33.7 22.3 +11.4 58
Operational Transparency 22.6 11.3 +11.3 58
Contract Governance 14.1 6.4 +7.7 58

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) 29% 16% +13
MCP server (first-party) 10% 7% +3
Agent Skills 0% 0% 0
OAuth scopes 29% 9% +20
Security 97% 88% +9
Arazzo workflows 5% 2% +3
Governance rules 21% 13% +8

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 iOS 67.9
  2. 2 Kinde 62.9
  3. 3 GoFundMe 57.7
  4. 4 Tyk 57.7
  5. 5 Okta 57.6
  6. 6 Lone Wolf Technologies 53.5
  7. 7 DNAnexus 53
  8. 8 Microsoft Azure Active Directory 52.8
  9. 9 PJM Interconnection 52.1
  10. 10 PlanSource 52.1
Top by Agent Readiness
  1. 1 Lone Wolf Technologies 49.3
  2. 2 GoFundMe 45.5
  3. 3 PlanSource 45.1
  4. 4 Steadfast Group 44.8
  5. 5 SK Telecom 43.7
  6. 6 American Express Global Business Travel 42.6
  7. 7 Securitize 36.9
  8. 8 ID.me 36.5
  9. 9 Tyk 34
  10. 10 Microsoft Azure Active Directory 32.4
All 58 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.

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Tools for tags

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

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