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Single Sign-On

Score 32.1 / 100 51 providers +150 via APIs 187 APIs Search apis.io →
Variants seen in the corpus: Single Sign OnSingle Sign-OnSingleSignOn

Providers using this tag (51)

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

Exemplar 3 Complete, well-documented, and agent-ready
Strong 3 Solid coverage with minor gaps
Developing 11 Usable, with meaningful gaps to close
Thin 19 Limited public surface area
Emerging 12 Early or largely undocumented
Minimal 3 Almost no public developer surface

APIs with this tag (186)

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
Strong 7 Solid coverage with minor gaps
Developing 61 Usable, with meaningful gaps to close
Stanford Identity Provider — SAML 2.0 metadataSigned Shibboleth SAML 2.0 identity-provider metadata, entityID https://idp.stanford.edu/, valid until 2027...54.1InCommon Identity Federation — University of Minnesota Shibboleth IdPThe University operates its own Shibboleth identity provider and publishes it through the InCommon federati...53.4UCLA Shibboleth Identity Provider (InCommon)UCLA's own Shibboleth identity provider and the most complete machine-readable artifact the university publ...52.7UNSW Shibboleth Identity Provider (AAF / eduGAIN)UNSW's own SAML 2.0 identity provider — a Shibboleth IdP whose entity metadata is published as a machine-re...52.6Uppsala University SAML 2.0 Identity Provider MetadataUppsala University runs its own Shibboleth Identity Provider and publishes its SAML 2.0 federation metadata...52.5UBC Shibboleth Identity Provider MetadataUBC's own SAML 2.0 identity provider metadata, entityID https://authentication.ubc.ca, asserting the ubc.ca...52.3DNAnexus OpenID Connect ProviderDNAnexus operates an OpenID Connect provider that lets third-party web applications sign users in with thei...51.8Lone Wolf Technologies Single Sign On APIGenerate one-time-use SSO links for the agent dashboard, transaction list, or a specific transaction51.4Taylor's University Identity Federation (Microsoft Entra ID)Taylor's operates a Microsoft Entra ID tenant, 0a39ee13-5c27-420c-b0af-8e65c6929055, branded "Taylor's Educ...51.4PJM Browserless Authentication APIThe REST authentication front door for every browserless/API integration with PJM eTools. A client POSTs to...51.0Seoul National University SAML 2.0 Identity ProviderSNU's federated identity provider, entityID https://kafegw.snu.ac.kr/idp/simplesamlphp, registered by the K...50.7Zitadel SAML APIZitadel provides SAML 2.0 single sign-on support, enabling enterprises to integrate with Zitadel using SAML...50.2HKUST Shibboleth Identity ProviderHKUST's own SAML 2.0 identity provider, serving machine-readable metadata at idp.ust.hk/idp/shibboleth. Ass...49.9Clever Single Sign-On APIOAuth 2.0, OIDC, and SAML-based single sign-on integration that enables application partners to authenticat...49.7UTokyo Identity Federation (GakuNin SAML 2.0)The University of Tokyo operates three SAML 2.0 entities registered in GakuNin, Japan's academic access fed...49.6HKU Shibboleth Identity ProviderThe University of Hong Kong's own Shibboleth SAML 2.0 identity provider, entityID https://hkafidp.hku.hk/id...48.9Instituto Superior Tecnico SAML 2.0 Identity Provider (RCTSaai / eduGAIN)The identity provider for Instituto Superior Tecnico, federated through RCTSaai into eduGAIN and asserting ...48.6Universidade de Lisboa SAML 2.0 Identity Provider (RCTSaai / eduGAIN)The institution's central SAML 2.0 identity provider, published into the Portuguese national identity feder...48.6McMaster University Shibboleth Identity ProviderMcMaster's own SAML 2.0 Identity Provider, the authentication authority behind MacID. Publishes machine-rea...48.2Illinois Shibboleth Identity Provider (InCommon)The campus SAML identity provider — the one surface a university operates by definition and almost never ha...48.1UMD Shibboleth Identity Provider — SAML 2.0 MetadataThe university's own Shibboleth identity provider, publishing a SAML 2.0 EntityDescriptor as InCommon entit...47.9UWA Shibboleth Identity Provider (SAML 2.0 metadata)UWA operates its own Shibboleth identity provider and publishes signed SAML 2.0 federation metadata at http...47.9Macquarie University Identity Provider (Shibboleth / SAML 2.0)Macquarie operates its own Shibboleth identity provider at idp.mq.edu.au, publishing SAML 2.0 metadata anon...47.7UC Davis Shibboleth Identity Provider (SAML 2.0 / InCommon)UC Davis operates its own SAML 2.0 identity provider and publishes signed federation metadata as entityID u...47.3Arango Managed Platform SCIM APISCIM 2.0 user and group provisioning endpoint for Arango Managed Platform organizations, used to synchroniz...47.2Harvard University Shibboleth Identity Provider (InCommon)Harvard's SAML 2.0 identity provider, entityID https://fed.huit.harvard.edu/idp/shibboleth, registered in t...46.9Epic Account Services APIEpic Account Services (EAS) provides authentication and identity for players using Epic Games accounts. Sup...46.8Georgia Tech Shibboleth Identity Provider (InCommon)Georgia Tech's own SAML 2.0 / Shibboleth identity provider, entityID https://idp.gatech.edu/idp/shibboleth,...46.8University of Groningen Identity Provider (SURFconext / eduGAIN)The University runs its own SAML 2.0 identity provider and publishes signed federation metadata at signon.r...46.7Lancaster Shibboleth Identity Provider (SAML 2.0 metadata)Lancaster operates its own Shibboleth Identity Provider and self-publishes its SAML 2.0 EntityDescriptor at...46.2University of Auckland Shibboleth Identity Provider (SAML 2.0 metadata)The University's institutional identity provider, publishing SAML 2.0 metadata at https://iam.auckland.ac.n...46.1University of Chicago Shibboleth Identity Provider — InCommon SAML MetadataThe University of Chicago's Shibboleth identity provider publishes its SAML 2.0 metadata document publicly....46.1IITB Central SSO — OpenID ConnectThe IIT Bombay Computer Centre's central identity provider, and the credential every institutional service ...45.8ITC Single Sign-OnA session-based Single Sign-On service maintained by the Institute Technical Council for authenticating IIT...45.8Politecnico di Torino Shibboleth Identity Provider (IDEM GARR / eduGAIN)Machine-readable SAML 2.0 identity-provider metadata for Politecnico di Torino, served from the university'...45.7ServiceChannel SingleSignOn APIThe SingleSignOn API from ServiceChannel — 4 operation(s) for singlesignon.45.2Securitize Connect API (Securitize iD)OAuth-based identity API that lets partners add "Log in with Securitize iD" to their own application and, w...45.1myLogin Shibboleth Identity Provider (SAML 2.0 metadata)The university's own Shibboleth Identity Provider, myLogin, operated by the Universitätsrechenzentrum. Its ...44.0University of Sheffield Shibboleth Identity ProviderThe institution's own SAML 2.0 identity provider, entityID https://idp.shef.ac.uk/shibboleth, serving live ...44.0UdeM Shibboleth Identity Provider (SAML metadata)Université de Montréal's campus single sign-on, published as machine-readable SAML 2.0 entity metadata. The...43.9SJTU Identity Provider (Shibboleth / SAML 2.0)SJTU operates a Shibboleth identity provider and publishes its SAML metadata openly at https://jaccount.sjt...43.8SK Telecom T ID Login APIT ID is SK Telecom's federated identity service, the single sign-on used across SK Telecom and SK affiliate...43.8University of York Shibboleth Identity ProviderThe University's own SAML 2.0 identity provider at shib.york.ac.uk, running Shibboleth. It is the authentic...43.7Penn State Identity Federation (InCommon / Shibboleth)Penn State operates its own Shibboleth identity provider and registers it in the InCommon federation under ...43.5University of Vienna Shibboleth Identity ProviderThe university's SAML 2.0 identity provider, entityID https://weblogin.univie.ac.at/shibboleth, registered ...43.5TU Berlin Shibboleth Identity Provider (SAML 2.0 Metadata)The institution's own Shibboleth Identity Provider, operated by the ZECM and registered in the DFN-AAI fede...43.2WashU Shibboleth Identity Provider (InCommon)Washington University's own SAML 2.0 identity provider, entityID https://login.wustl.edu/idp/shibboleth, pu...43.1DFN-AAI Identity Federation — University of Bonn Shibboleth IdPThe University of Bonn operates its own SAML 2.0 / Shibboleth Identity Provider and publishes signed metada...42.7Ghent University SAML 2.0 Identity ProviderGhent University's own SAML 2.0 identity provider, operated by the university's ICT directorate. The signed...42.6University College Dublin Identity Provider (Shibboleth / Edugate / eduGAIN)UCD's SAML 2.0 Shibboleth Identity Provider, and the institution's only authentication surface it runs itse...42.5NYCU OAuth APIThe university's own OAuth 2.0 (RFC 6749) authorization server, fronting the NYCU single sign-on account. O...42.4Aalto Shibboleth Identity Provider (Haka / eduGAIN)Aalto's own Shibboleth SAML 2.0 identity provider, entityID https://idp.aalto.fi/idp/shibboleth, scope aalt...42.2KSU Identity and Access Management (OAuth 2.0 / OpenID Connect / SAML 2.0)King Saud University operates its own authorization server and identity provider, and publishes both discov...41.8Chalmers SAML Identity Provider (SWAMID / eduGAIN)Chalmers' own SAML 2.0 identity provider, entityID http://idp.chalmers.se/adfs/services/trust, running on M...41.5SavvyMoney SSO REST APIJWT-based Single Sign-On REST API that lets a partner's online or mobile banking platform transfer an authe...40.8UCT Identity Provider (SAML 2.0 / SAFIRE / eduGAIN)UCT's Information and Communication Technology Services operates a SAML 2.0 identity provider registered in...40.6Tsinghua University Identity Provider — SAML 2.0 Federation MetadataTsinghua operates its own Shibboleth Identity Provider and publishes machine-readable SAML 2.0 metadata abo...40.3KFUPM Identity Federation (SAML 2.0 + OpenID Connect)KFUPM's own identity provider at sts.kfupm.edu.sa (Microsoft AD FS). Publishes signed SAML 2.0 federation m...39.6Massey University Microsoft Entra ID TenantMassey University's Microsoft Entra ID tenant, discoverable by domain. The OpenID Connect discovery documen...39.6Massey University Shibboleth Identity ProviderMassey University's own SAML 2.0 / Shibboleth Identity Provider. The metadata document is public, machine-r...39.6University of Tübingen Shibboleth Identity Provider (DFN-AAI / eduGAIN)Institution-operated Shibboleth SAML 2.0 identity provider, registered in DFN-AAI — the German national res...39.3
Thin 92 Limited public surface area
SSO@UKM — SAML 2.0 Identity ProviderUniversiti Kebangsaan Malaysia's own SAML 2.0 identity provider, a SimpleSAMLphp deployment at sso.ukm.my. ...39.2QlikView Authentication API (Ticket API)Authentication API providing Custom Ticket Exchange (CTE) for secure single sign-on access to QlikView Serv...39.0University of Liverpool AD FS OAuth 2.0 / OpenID ConnectInstitution-operated Active Directory Federation Services authorization server on the university's own host...38.8University of Liverpool Microsoft Entra ID tenantThe institution's own Microsoft Entra ID tenant, discoverable by its domain name. Verified live 2026-09-01:...38.8University of Liverpool Shibboleth IdP (UK Access Management Federation)Institution-operated Shibboleth SAML 2.0 identity provider, registered in the UK Access Management Federati...38.8Universidad de los Andes Identity Provider (Microsoft Entra ID)The university's own SAML 2.0 and OpenID Connect identity provider, hosted as Microsoft Entra ID tenant fab...38.7University of Bristol Identity Provider (Shibboleth / SAML 2.0)Bristol operates its own Shibboleth identity provider at idp.bris.ac.uk, publishing SAML 2.0 metadata anony...38.3CMISGo Timetabling (gated)Student and staff timetabling at timetable.reading.ac.uk. Operator is the institution — the host is the uni...38.1Microsoft Entra ID Tenant OpenID Connect DiscoveryThe university's institutional identity plane. Tenant 4ffa3bc4-ecfc-48c0-9080-f5e43ff90e5f, whose OpenID Co...38.1Tongji University Shibboleth Identity Provider (CARSI / eduGAIN)Tongji University's own SAML 2.0 identity provider, registered into eduGAIN by CARSI, the CERNET Authentica...38.1UK Access Management Federation Identity Provider EntityThe University of Reading's own SAML identity provider entity, registered in the UK Access Management Feder...38.1vLex Remote Authentication APISingle sign-on authentication API for corporate vLex accounts. Generates redirect URLs using HMAC authentic...38.1IISc Shibboleth Identity Provider (INFED / eduGAIN)Institution-operated Shibboleth SAML 2.0 identity provider, self-published as machine-readable metadata on ...37.9FAU API Gateway (api.fau.de)api.fau.de is an FAU-operated API portal — the browser title is "FAU API", the single-page application is s...37.1FAU WebSSO SAML 2.0 Identity ProviderFAU's central web single sign-on, operated by RRZE, publishes SAML 2.0 identity provider metadata as a mach...37.1SKKU SAML 2.0 Identity Provider (KAFE / eduGAIN metadata)Sungkyunkwan University's institutional identity provider, publishing machine-readable SAML 2.0 metadata th...36.8Nagoya University Shibboleth Identity Provider (GakuNin)Institution-operated Shibboleth SAML 2.0 identity provider on the university's own host, published as machi...36.7UNIGE Shibboleth Identity Provider (SWITCHaai)The University of Geneva's own SAML 2.0 Shibboleth Identity Provider, published as machine-readable metadat...36.6GakuNin Shibboleth Identity ProviderKyushu University's own SAML 2.0 Identity Provider, registered in GakuNin — the Japanese academic access-ma...36.4Enterprise Single Sign-On (WSO2 Identity Server)The university self-hosts a WSO2 Identity Server at auth-eis.vuw.ac.nz — no CNAME, resolving directly to 13...36.1TUM Shibboleth Identity Provider (SAML 2.0 Metadata)Machine-readable SAML 2.0 identity provider metadata — an EntityDescriptor with an IDPSSODescriptor support...36.0Keio Okta Tenant — OpenID ConnectKeio runs an Okta tenant at keio.okta.com behind its campus applications; gslbs.keio.jp redirects an anonym...35.8Keio University Identity Provider (GakuNin / eduGAIN)Keio operates its own SAML 2.0 identity provider under entityID https://gakunin1.keio.ac.jp/idp/shibboleth,...35.8UAEU Enterprise Identity Service (OIDC / SAML 2.0 / SCIM 2.0)The university's own single sign-on service, running on UAEU's registrable domain under a certificate issue...35.8Vanderbilt Microsoft Entra ID TenantThe vanderbilt.edu Microsoft Entra ID tenant (ba5a7f39-e3be-4ab3-b450-67fa80faecad), publishing live OpenID...35.7Vanderbilt Okta Identity Provider (OneVU)Vanderbilt's Okta organisation on its own custom domain onevu.vanderbilt.edu (CNAME to vanderbilt.customdom...35.7Curtin Library Shibboleth Service ProviderA Shibboleth SAML 2.0 service provider that Curtin Library runs on its own Kubernetes cluster, serving its ...35.5University of Waikato Identity Provider (uowidp)The university's own OpenID Connect 1.0 provider, on its own API gateway at api.svc.waikato.ac.nz/uowidp/v1...35.5University of Waikato Microsoft Entra ID TenantThe university's Microsoft Entra ID tenant, 220f5dc3-9452-48e5-9b4f-888df42f7a2d, is the identity source be...35.5Waikato SAML 2.0 Identity Provider in TuakiriThe University of Waikato's Shibboleth Identity Provider, entityID https://idp.waikato.ac.nz/idp/shibboleth...35.5University of Calgary Identity Federation (SAML 2.0 / OpenID Connect)The ucalgary.ca single-sign-on identity provider, run as a Microsoft Entra ID tenant. It publishes signed S...35.4Hebrew University of Jerusalem SAML 2.0 Identity ProviderThe university's own SimpleSAMLphp identity provider, publishing a live SAML 2.0 EntityDescriptor (HTTP 200...35.1Shibboleth Identity Provider (SAML 2.0)Zhejiang University operates a Shibboleth SAML 2.0 Identity Provider, entityID https://idp.zju.edu.cn/idp/s...35.1Unified Identity Authentication (CAS / SSO)ZJU's unified identity authentication platform — a Central Authentication Service (CAS) single sign-on logi...35.1Khalifa University Identity Federation (Microsoft Entra ID)Khalifa University operates its own Microsoft Entra ID tenant for the ku.ac.ae namespace — tenant id 08fe1c...34.8University of Antwerp Identity Provider (Shibboleth / SAML 2.0)The university's federated login, published as a SAML 2.0 EntityDescriptor at https://idpx.ua.ac.be/idp/shi...34.8Universität Hamburg Shibboleth SAML 2.0 Identity Provider MetadataThe institution's own SAML 2.0 Identity Provider metadata, served from its own host. entityID https://login...34.8POSTECH SAML 2.0 Identity ProviderPOSTECH's own SAML 2.0 identity provider, entityID https://idpass.postech.ac.kr/idp/simplesamlphp, register...34.6UTORauth Shibboleth Identity Provider (SAML 2.0 metadata)The University of Toronto's Shibboleth identity provider, entityID https://idpz.utorauth.utoronto.ca/shibbo...34.5Boston University Shibboleth Identity ProviderBoston University's SAML 2.0 identity provider, publishing machine-readable entity metadata at its own host...34.3Brown University Identity Provider (Shibboleth / SAML 2.0)Brown's Shibboleth identity provider, and the strongest machine-readable contract in this profile. Brown se...34.0GakuNin Shibboleth Identity ProviderTohoku University's own SAML 2.0 Identity Provider, registered in GakuNin — the Japanese academic access-ma...34.0Western University Shibboleth Identity Provider (SAML 2.0 metadata)Western's institutional identity provider, publishing machine-readable SAML 2.0 metadata through the Canadi...33.3ENPC SAML 2.0 Identity Provider MetadataThe one machine-readable contract École des Ponts ParisTech operates on its own infrastructure. A live SAML...33.2University of Nottingham Shibboleth Identity Provider (UK Access Management Federation)Institution-operated Shibboleth SAML 2.0 identity provider, registered and published as machine-readable me...33.0NoRedInk OAuth & OpenID ConnectNoRedInk's OAuth 2.0 authorization server with OpenID Connect on top, used for single sign-on and partner/c...32.7Steadfast Identity (OpenID Connect)Steadfast Group's Okta-hosted OpenID Connect provider, issuer https://idp.steadfast.com.au. It fronts the c...32.6University of Birmingham Identity Provider (SAML 2.0 / Shibboleth)The University's own Shibboleth SAML 2.0 Identity Provider. The entity descriptor is served directly by IT ...32.6Heriot-Watt University Identity Provider (UK Access Management Federation)Heriot-Watt operates its own SAML 2.0 / Shibboleth identity provider and is a registered member of the UK A...32.5Sapienza Shibboleth Identity Provider (IDEM GARR AAI)Institution-operated Shibboleth SAML 2.0 identity provider, published as machine-readable metadata both dir...32.5UAB Central Authentication Service (CAS 3.0)The CAS protocol face of the same server. https://sso.uab.cat/ redirects to /cas/login and the ticket-valid...32.4UAB Single Sign-On — SAML 2.0 Identity ProviderUAB self-publishes a complete SAML 2.0 IdP EntityDescriptor at https://sso.uab.cat/cas/idp/metadata (HTTP 2...32.4UCLouvain Shibboleth Identity Provider -- SAML 2.0 metadataUCLouvain runs its own Shibboleth identity provider and publishes signed SAML 2.0 entity metadata at a stab...32.4Caltech Shibboleth Identity Provider (InCommon)Caltech operates its own Shibboleth identity provider at idp.caltech.edu, asserting scoped attributes for c...32.1Chula SSO Authentication APIThe university's own single sign-on service, in production at account.it.chula.ac.th since January 2017 and...32.1Chulalongkorn University Identity Federation (Microsoft Entra ID tenant)The university's cloud identity, and the most complete machine-readable contract anywhere in this profile. ...32.1University of St Andrews Shibboleth Identity ProviderThe University's own SAML 2.0 / Shibboleth Identity Provider, entityID https://idp.st-andrews.ac.uk/shibbol...31.5RITEC Shibboleth Service ProviderA Shibboleth Service Provider operated in front of RITEC on the institution's own host. The DSpace REST API...31.4Tec de Monterrey Access Manager Identity Provider (amfs.tec.mx)A second institution-operated SAML 2.0 identity provider, a NetIQ/Micro Focus Access Manager deployment on ...31.4Tec de Monterrey AD FS Identity Provider (fs.itesm.mx)The institution's own SAML 2.0 / WS-Federation / OpenID Connect identity provider, on its own registrable d...31.4Adelaide University Shibboleth Identity Provider (SAML 2.0)The institution's own Shibboleth SAML 2.0 Identity Provider, serving machine-readable EntityDescriptor meta...31.2University of Sussex Shibboleth Identity Provider (SAML 2.0 metadata)The university's own Shibboleth IdP, publishing signed SAML 2.0 metadata as a machine-readable EntityDescri...31.1University of Sussex Single Sign-On (Okta tenant)Sussex's Okta organization, reached on the Sussex-branded hostname okta.sussex.ac.uk, which CNAMEs to susse...31.1SWITCHaai Identity Federation — University of Bern IdPThe University of Bern operates its own SAML 2.0 / Shibboleth Identity Provider, published as machine-reada...30.5Fudan University Unified Identity — OpenID ConnectThe OpenID Connect provider Fudan operates for campus single sign-on at id.fudan.edu.cn. Issuer https://id....30.4University of Rochester Shibboleth Identity ProviderSAML 2.0 / Shibboleth identity provider metadata for the University of Rochester, published machine-readabl...30.2Sorbonne University Identity Provider (SAML 2.0)Sorbonne University's federated login, published as a signed SAML 2.0 EntityDescriptor at https://auth.id.s...29.8UCM SAML 2.0 Identity Provider (RedIRIS SIR / eduGAIN)UCM's institutional single sign-on, registered in eduGAIN through RedIRIS SIR, the Spanish national researc...29.6University of Padova Shibboleth Identity Provider (SAML metadata)The University of Padua operates its own Shibboleth Identity Provider and publishes its SAML 2.0 metadata a...29.6Arist Identity (OIDC)Arist runs its customer-facing authentication on an Auth0 tenant at auth.arist.app. The tenant publishes an...29.4CWRU Apereo CAS single sign-on (login.case.edu)CWRU runs an Apereo CAS deployment at login.case.edu as its campus single sign-on service. The CAS 3.0 prot...29.4HU-IAM Shibboleth Identity Provider (SAML 2.0)Humboldt-Universität zu Berlin operates its own Shibboleth/SAML identity provider, entityID https://shib-id...29.4Qatar University SAML 2.0 Identity ProviderThe same host publishes a SAML 2.0 IDPSSODescriptor at /identity/metadata/saml2, entityID `sso.qu.edu.qa`, ...29.3Qatar University Single Sign-On (OpenID Connect / OAuth 2.0)Qatar University's own OpenID Connect provider, running on a WSO2 Identity Server at sso.qu.edu.qa. It publ...29.3University of Alberta SAML 2.0 Identity Provider MetadataThe university's own SAML 2.0 identity provider metadata document, served from its own domain. It declares ...29.3University of Otago Identity Provider (SAML 2.0 / Shibboleth) — Tuakiri Hosted LoginOtago's SAML 2.0 identity is published as a complete IDPSSODescriptor in the SIGNED Tuakiri NZ Access Feder...29.2UPF SAML 2.0 Identity Provider (RedIRIS SIR / eduGAIN)UPF's institutional single sign-on, registered in eduGAIN through RedIRIS SIR, the Spanish national researc...29.2Lingvist Learn APIThe OAuth 2.0 protected API behind the Lingvist learning platform. Lingvist publishes no reference document...29.1ENS de Lyon CAS single sign-on (Apereo CAS 3.0 protocol)Apereo CAS service running on ENS de Lyon's own host cas.ens-lyon.fr (140.77.51.3). The CAS 3.0 validation ...28.6ENS de Lyon Microsoft Entra ID tenant (OIDC + SAML metadata)The Entra ID tenant behind ens-lyon.fr accounts, resolved from the domain hint: c30cf67d-aee4-44f6-8f1b-12f...28.6ENS de Lyon Shibboleth Identity Provider (SAML 2.0 metadata)ENS de Lyon self-hosts its Shibboleth Identity Provider on its own registrable domain. The entityID is http...28.6UTM identity federation — Microsoft Entra ID tenant (SAML 2.0 / OpenID Connect)UTM's institutional identity provider. The tenant (9c827912-3502-4333-ba47-1b242c3d20e6) is bound to UTM by...28.4IIT Madras Shibboleth Identity Provider (INFED / eduGAIN)IIT Madras's own SAML 2.0 identity provider, entityID https://idp.iitm.ac.in/idp/shibboleth, registered by ...28.3UNC Shibboleth Identity Provider (SAML 2.0 / InCommon)UNC's Onyen single sign-on is a Shibboleth Identity Provider that publishes SAML 2.0 metadata at its canoni...28.2Queen's University Shibboleth Identity Provider (SAML 2.0 Metadata)Queen's runs its own Shibboleth Identity Provider and publishes SAML 2.0 IdP metadata as application/xml at...28.0TAU SAML Identity in the IUCC Identity FederationTel Aviv University federates through the IUCC Identity Federation (IUCCIF), the Israeli national federatio...27.8Loughborough University SAML 2.0 Identity ProviderLoughborough operates its own SAML 2.0 Identity Provider — SimpleSAMLphp, Loughborough-branded, at idp.lbor...27.5Wuhan University Campus Single Sign-On (CAS / OpenID Connect / SAML)The campus authentication server at cas.whu.edu.cn/authserver, which every institutional application redire...27.5Wuhan University Shibboleth Identity Provider (SAML 2.0)WHU's federated login, published as a SAML 2.0 EntityDescriptor at https://idp.whu.edu.cn/idp/shibboleth (H...27.5UNIBO Shibboleth Identity Provider (IDEM GARR AAI)Institution-operated Shibboleth SAML 2.0 identity provider, published as machine-readable metadata both dir...27.0IIT Delhi Shibboleth Identity Provider (SAML 2.0 metadata)IIT Delhi runs its own Shibboleth identity provider at idp.iitd.ac.in and self-publishes its SAML 2.0 metad...26.8UCL Identity Provider — UK Access Management FederationUCL is a registered Identity Provider in the UK Access Management Federation (Jisc), and by extension in ed...26.6
Emerging 23 Early or largely undocumented
UCSI University Identity Federation (Microsoft Entra ID)UCSI operates a Microsoft Entra ID tenant, 3c5f2d31-81d8-4455-a2bf-531fbc398144, region AS, whose Federatio...26.1UTP Identity Federation (Microsoft Entra ID tenant)UTP federates identity through its own Microsoft Entra ID tenant rather than a Shibboleth IdP. Both the SAM...26.1UAM Identity Provider — SIR / eduGAIN SAML 2.0 MetadataUAM's SAML 2.0 identity in SIR, the Servicio de Identidad de RedIRIS, Spain's national research and educati...25.9TU/e SAML Identity Provider (SURFconext / eduGAIN)TU/e's SAML 2.0 identity-provider entity as published in the SURFconext federation metadata, which feeds ed...25.7nib Identity (OpenID Connect)The Auth0-backed OpenID Connect tenant behind nib member sign-in, issuer https://id.nib.com.au/. It is the ...25.3USC Shibboleth Identity Provider (SAML 2.0 Metadata)USC's production single sign-on identity provider, operated by USC Information Technology Services on USC's...25.0Institutional SAML Identity Provider (RedIRIS SIR2 / eduGAIN)The university's own Shibboleth/SAML identity provider, published through RedIRIS's SIR2 national identity ...24.9Tuakiri Hosted Identity Provider for canterbury.ac.nzThe University of Canterbury's SAML 2.0 Identity Provider is registered in the signed Tuakiri federation me...24.1UC Shibboleth SAML 2.0 Service Provider MetadataThree Shibboleth Service Providers run on University of Canterbury hosts and publish machine-readable SAML ...24.1ENS-PSL Identity Provider (SAML 2.0 / Shibboleth)ENS-PSL runs its own Shibboleth identity provider under its own registrable domain. The SAML 2.0 entity des...23.8Packback LTI IntegrationPackback's integration surface is the IMS Global LTI standard (1EdTech certified for LTI 1.0, 1.2, and 1.3 ...23.8Tianjin University Shibboleth Identity Provider (SAML 2.0 metadata)The university's own Shibboleth identity provider, and the only credential-free, machine-readable contract ...23.4Queen's University Belfast Shibboleth Identity Provider (UK Access Management Federation)Queen's University Belfast operates a production Shibboleth SAML 2.0 Identity Provider registered in the UK...22.0Monash University Identity Provider (AAF Rapid IdP tenant)Monash's federated login, published as a signed SAML 2.0 EntityDescriptor at https://idp.monash.edu.au/idp/...21.5CityUHK Shibboleth Identity ProviderCityUHK's own SAML 2.0 Identity Provider, running Shibboleth on the university's own host and publishing li...20.8CityUHK Single Sign-On (OpenID Connect / OAuth 2.0)CityUHK's OpenID Connect and OAuth 2.0 authorization server on the university's own hostname auth.cityu.edu...20.8University of Newcastle Shibboleth Identity Provider (SAML 2.0 metadata)UON's institutional identity provider, publishing machine-readable SAML 2.0 metadata at a stable URL. entit...20.4Deakin University SAML 2.0 Identity ProviderDeakin's Shibboleth identity provider, self-hosted and self-described. The EntityDescriptor at https://sign...20.0Yonsei University KAFE Identity Provider (SAML 2.0)Yonsei University operates its own SAML 2.0 Identity Provider for KAFE, the Korean Access FEderation, on it...17.6InkSoft Users & SSO APIProvision and link InkSoft user accounts for single sign-on. The documented CreateUser method creates an In...16.6teamplay Single Sign-On APIAuthentication and identity federation surface that lets partner applications running on the teamplay digit...15.3Rockstar Games Sign-In (OpenID Connect)Public OpenID Connect / OAuth 2.0 identity provider operated by Rockstar Games at signin.rockstargames.com....14.3easyJet Brand Widget Service (easyDom)easyJet's hosted client-side widget platform for partner and white-label sites. Each widget is a script tag...14.2

Companies reaching this through an API (150)

These companies publish an API, specification or operation carrying “Single Sign-On” 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.

Aalto University ArangoDB Arist Australian National University Autonomous University of Barcelona Autonomous University of Madrid Boston University Brown University California Institute of Technology Case Western Reserve University Chalmers University of Technology City University of Hong Kong Complutense University of Madrid Curtin University Deakin University DNAnexus easyJet Eindhoven University of Technology Epic Games Friedrich-Alexander-Universität Erlangen-Nürnberg Georgia Institute of Technology Ghent University GoFundMe Harvard University Hebrew University of Jerusalem Heriot-Watt University Hong Kong University of Science and Technology Humboldt-Universität zu Berlin Indian Institute of Science Bangalore Indian Institute of Technology Delhi Indian Institute of Technology Madras InkSoft iOS Keio University Khalifa University King Fahd University of Petroleum & Minerals Kyushu University Lancaster University Lingvist Lone Wolf Technologies Loughborough University Macquarie University Massey University McMaster University Microsoft Azure Monash University Nagoya University nib Packback Pennsylvania State University
Show all 150 companies ↓
PJM Interconnection Pohang University of Science and Technology Politecnico di Torino Qatar University QlikView Queen's University at Kingston Queen's University Belfast Rockstar Games Sapienza University of Rome Securitize Seoul National University ServiceChannel Shanghai Jiao Tong University Siemens Healthineers SK Telecom Sorbonne University Stanford University Steadfast Group Sungkyunkwan University Taylor's University Technical University of Berlin Technical University of Munich Tecnológico de Monterrey Tel Aviv University Tohoku University Tongji University Tsinghua University TU Wien Tyk UCL UCLouvain UCSI University United Arab Emirates University Universitat Pompeu Fabra Universiti Kebangsaan Malaysia Universiti Teknologi Malaysia Universiti Teknologi PETRONAS University College Dublin University of Adelaide University of Alberta University of Antwerp University of Auckland University of Bern University of Birmingham University of Bologna University of Bonn University of Bristol University of British Columbia University of Calgary University of California, Davis University of California, Los Angeles University of Cambridge University of Canterbury University of Cape Town University of Chicago University of Freiburg University of Geneva University of Groningen University of Illinois Urbana-Champaign University of Lisbon University of Liverpool University of Los Andes Colombia University of Maryland College Park University of Minnesota University of Navarra University of New South Wales University of Newcastle Australia University of North Carolina at Chapel Hill University of Nottingham University of Otago University of Padua University of Reading University of Rochester University of Sheffield University of Southern California University of St Andrews University of Sussex University of Tokyo University of Toronto University of Tübingen University of Vienna University of Waikato University of Waterloo University of Western Australia University of Wisconsin-Madison University of York Universität Hamburg Université de Montréal Uppsala University Vanderbilt University Victoria University of Wellington vLex VMware Washington University in St. Louis Western University Yonsei University Zitadel École des Ponts ParisTech École Normale Supérieure de Lyon École Normale Supérieure de Paris

Score breakdown

Frequency
63.9
log-scaled weighted occurrences
Breadth
1.4
spread across providers
Quality lift
40.4
mean composite of providers using it
Cohesion
51.1
strength of nearest seed neighbor

Related tags

SAML 145 co-occurrences Identity Federation 134 co-occurrences University 138 co-occurrences Shibboleth 109 co-occurrences OAI-PMH 116 co-occurrences Higher Education 139 co-occurrences Research Data 101 co-occurrences Research Repository 90 co-occurrences

Where this tag comes from

Api tag187
Provider tag51
Openapi tag5
Openapi op tag20

Cohort brief

Auto-generated

The 50 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
50
all scored
Mean Kin Score
36.2
+12.3 vs catalog 23.9
Mean Agent Readiness
18.6
+6.6 vs catalog 12
Spread
5–86
median 33.1 · σ 16.3
How the 50 split by band
Exemplar 3Strong 3Developing 11Thin 19Emerging 12Minimal 2
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 37.3 23.4 +13.9 50
Access Clarity 37.7 26.5 +11.2 50
Operational Transparency 24.5 14 +10.5 50
Contract Quality 29.5 19.8 +9.7 50
Contract Governance 14.2 6.4 +7.8 50
Discoverability 67.7 61.2 +6.5 50

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) 16% 10% +6
MCP server (first-party) 12% 13% -1
Agent Skills 0% 0% 0
OAuth scopes 36% 11% +25
Security 98% 97% +1
Arazzo workflows 4% 2% +2
Governance rules 22% 14% +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 Kinde 86
  2. 2 Microsoft Entra ID (formerly Azure AD) 77.9
  3. 3 Authentik 69.1
  4. 4 Okta 62.1
  5. 5 Microsoft Azure Active Directory 57.3
  6. 6 Namely 56.9
  7. 7 Amazon IAM Identity Center 52.6
  8. 8 ID.me 50.3
  9. 9 Clever 49.7
  10. 10 Cirrus Identity 49.5
Top by Agent Readiness
  1. 1 Microsoft Entra ID (formerly Azure AD) 52
  2. 2 Kinde 48.5
  3. 3 PlanSource 45.1
  4. 4 ID.me 34.4
  5. 5 Microsoft Azure Active Directory 32.4
  6. 6 FusionAuth 31.4
  7. 7 Okta 30.8
  8. 8 Authentik 30.4
  9. 9 Cirrus Identity 30.2
  10. 10 SSO 28.1
All 51 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.

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/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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