École Normale Supérieure de Lyon (ENS de Lyon) is a French public grande école and research university, one of the four Écoles normales supérieures, ranked #187 in the QS World University Rankings 2025. It operates no public developer portal, publishes no OpenAPI, issues no API keys and runs no documented open-API programme — api.ens-lyon.fr, data.ens-lyon.fr and developer.ens-lyon.fr do not resolve — and this profile says so rather than padding the gap. What ENS de Lyon does operate, and what is recorded here, is standards-based identity and scholarly infrastructure. It self-hosts a Shibboleth Identity Provider on its own domain (idp.ens-lyon.fr, scope ens-lyon.fr, on the school's own 140.77.0.0/16 allocation), registered by RENATER in the Fédération Éducation-Recherche, carrying the REFEDS Research & Scholarship entity category and exported to eduGAIN; it runs an Apereo CAS single sign-on service at cas.ens-lyon.fr that answers the CAS 3.0 protocol; and it holds a Microsoft Entra ID tenant with live OIDC discovery. Its research output is machine-readable only as the ens-lyon collection on HAL, the national open archive operated by CCSD/CNRS — 106,836 records, harvestable over OAI-PMH and Solr search at api.archives-ouvertes.fr. That data is ENS de Lyon's; the platform, the contract and the admin contact (contact@archives-ouvertes.fr) are HAL's, so those surfaces are recorded as tenancies and HAL's generic reference and SWORD APIs are deliberately not claimed here. The school is registered in ROR and in the Crossref Funder Registry; it holds no DataCite membership and no Crossref depositor membership of its own.
École Normale Supérieure de Lyon publishes 8 APIs on the APIs.io network. Tagged areas include University, Higher Education, Education, France, and Grande École.
The École Normale Supérieure de Lyon catalog on APIs.io includes 1 JSON-LD context.
École Normale Supérieure de Lyon’s developer surface includes support, authentication, and 13 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Education & Research regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/ens-lyon: open an issue to ask a question, or submit a pull request to add artifacts.
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ENS de Lyon self-hosts its Shibboleth Identity Provider on its own registrable domain. The entityID is https://idp.ens-lyon.fr/idp/shibboleth, the asserted scope is ens-lyon.fr,...
ENS de Lyon's Identity Provider as registered by RENATER, France's national research and education network, in the Fédération Éducation-Recherche and exported to eduGAIN. The pe...
The Entra ID tenant behind ens-lyon.fr accounts, resolved from the domain hint: c30cf67d-aee4-44f6-8f1b-12f4935b7d2c, region scope EU. OIDC discovery and SAML federation metadat...
Apereo CAS service running on ENS de Lyon's own host cas.ens-lyon.fr (140.77.51.3). The CAS 3.0 validation endpoint /cas/p3/serviceValidate answers unauthenticated with a well-f...
OAI-PMH 2.0 harvesting endpoint scoped to ENS de Lyon's named collection on HAL, the French national open archive operated by CCSD (CNRS). The Identify response names the reposi...
HAL's Solr-backed search API scoped to the ENS de Lyon collection. A probe of /search/ens-lyon/?q=*:*&wt=json returned numFound 106,836 on 2026-09-01, which is the size of ENS d...
ENS de Lyon's record in the Research Organization Registry, https://ror.org/04zmssz18, typed education and funder, carrying ISNI 0000 0001 2175 9188, GRID grid.15140.31, Wikidat...
ENS de Lyon is registered in the Crossref Open Funder Registry as https://doi.org/10.13039/501100018692, name "École Normale Supérieure de Lyon", location France. This is a fund...
aid: ens-lyon
name: École Normale Supérieure de Lyon
x-type: university
x-category: Public Research University
description: 'École Normale Supérieure de Lyon (ENS de Lyon) is a French public grande école and research university, one
of the four Écoles normales supérieures, ranked #187 in the QS World University Rankings 2025. It operates no public developer
portal, publishes no OpenAPI, issues no API keys and runs no documented open-API programme — api.ens-lyon.fr, data.ens-lyon.fr
and developer.ens-lyon.fr do not resolve — and this profile says so rather than padding the gap. What ENS de Lyon does operate,
and what is recorded here, is standards-based identity and scholarly infrastructure. It self-hosts a Shibboleth Identity
Provider on its own domain (idp.ens-lyon.fr, scope ens-lyon.fr, on the school''s own 140.77.0.0/16 allocation), registered
by RENATER in the Fédération Éducation-Recherche, carrying the REFEDS Research & Scholarship entity category and exported
to eduGAIN; it runs an Apereo CAS single sign-on service at cas.ens-lyon.fr that answers the CAS 3.0 protocol; and it holds
a Microsoft Entra ID tenant with live OIDC discovery. Its research output is machine-readable only as the ens-lyon collection
on HAL, the national open archive operated by CCSD/CNRS — 106,836 records, harvestable over OAI-PMH and Solr search at api.archives-ouvertes.fr.
That data is ENS de Lyon''s; the platform, the contract and the admin contact (contact@archives-ouvertes.fr) are HAL''s,
so those surfaces are recorded as tenancies and HAL''s generic reference and SWORD APIs are deliberately not claimed here.
The school is registered in ROR and in the Crossref Funder Registry; it holds no DataCite membership and no Crossref depositor
membership of its own.'
type: Index
deliveryModel:
model: saas
open_source: false
commercial: true
callable_host: false
label: Hosted service · you call their endpoint
confidence: medium
source:
- pricing
generated: '2026-08-28'
method: derived
accessModel:
pricing: free
onboarding: unknown
trial: false
try_now: false
public: false
label: Free
confidence: medium
source:
- plans
generated: '2026-07-22'
method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ens-lyon.png
url: https://raw.githubusercontent.com/api-evangelist/ens-lyon/refs/heads/main/apis.yml
tags:
- University
- Higher Education
- Education
- France
- Grande École
- Identity Federation
- Shibboleth
- SAML
- Research Repository
- Open Access
- OAI-PMH
- Research Computing
created: '2026-06-03'
modified: '2026-09-01'
specificationVersion: '0.23'
x-coverage:
state: gated
reason: no_public_api
detail: 'ENS de Lyon publishes no institution-operated public API and no developer portal. A DNS sweep of the obvious candidates
under ens-lyon.fr (api, apis, data, opendata, developer, courses, cours, sis, webservices, graphql, hpc, mesocentre, moodle,
bibliotheque, catalogue) resolved only ldap, intranet, cas and idp — three of which are internal or authentication-only.
www.ens-lyon.fr returns 404 for llms.txt, sitemap.xml, .well-known/security.txt and .well-known/openid-configuration,
and serves a 77KB soft-404 body, so status codes were read rather than page presence. Everything reachable WAS read: the
Shibboleth IdP metadata (application/xml, 12,129 bytes), the RENATER Fédération Éducation-Recherche MDQ entity for that
entityID in both the fer and edugain namespaces, the RENATER IdP aggregate (344 entities, ENS de Lyon present), the Entra
ID OIDC discovery document and its SAML federation metadata, the CAS 3.0 serviceValidate response, the HAL OAI-PMH Identify
response for the ens-lyon set, the HAL Solr search endpoint scoped to the ens-lyon collection (106,836 records), and the
ROR and Crossref Funder Registry records. Two surfaces are live but not machine-callable: the HAL institutional portal
ens-lyon.hal.science and books.openedition.org both return a 200 carrying an Anubis bot-mitigation challenge rather than
content. The github.com/ENS-Lyon organisation that the June 2026 profile pointed at has zero public repositories, no name,
no URL and no verified domain, so it cannot be attributed to the institution and the pointer has been removed. No public
AI policy or AI-tooling statement was found on the French or English surface. The profile is thin because the institution
is thin, not because we could not read it.'
generated: '2026-09-01'
method: probed
evidence:
- url: https://idp.ens-lyon.fr/idp/shibboleth
status: 200
- url: https://mdq.federation.renater.fr/fer/entities/https%3A%2F%2Fidp.ens-lyon.fr%2Fidp%2Fshibboleth
status: 200
- url: https://mdq.federation.renater.fr/edugain/entities/https%3A%2F%2Fidp.ens-lyon.fr%2Fidp%2Fshibboleth
status: 200
- url: https://metadata.federation.renater.fr/renater/main/main-idps-renater-metadata.xml
status: 200
- url: https://login.microsoftonline.com/ens-lyon.fr/v2.0/.well-known/openid-configuration
status: 200
- url: https://cas.ens-lyon.fr/cas/p3/serviceValidate
status: 200
- url: https://api.archives-ouvertes.fr/oai/ens-lyon?verb=Identify
status: 200
- url: https://api.archives-ouvertes.fr/search/ens-lyon/?q=*:*&rows=0&wt=json
status: 200
- url: https://ens-lyon.hal.science/
status: 200
- url: https://api.ror.org/v2/organizations/04zmssz18
status: 200
- url: https://api.crossref.org/funders/501100018692
status: 200
- url: https://api.datacite.org/clients?query=ens-lyon
status: 200
- url: https://www.ens-lyon.fr/llms.txt
status: 404
- url: https://www.ens-lyon.fr/.well-known/security.txt
status: 404
- url: https://api.ens-lyon.fr/
status: 0
- url: https://data.ens-lyon.fr/
status: 0
apis:
- aid: ens-lyon:shibboleth-idp
name: ENS de Lyon Shibboleth Identity Provider (SAML 2.0 metadata)
x-operator: institution
description: ENS de Lyon self-hosts its Shibboleth Identity Provider on its own registrable domain. The entityID is https://idp.ens-lyon.fr/idp/shibboleth,
the asserted scope is ens-lyon.fr, the technical contact is admin-system@ens-lyon.fr and the host resolves through lxc-idp.ens-lyon.fr
to 140.77.167.96, inside the school's own allocation. The metadata document is served unauthenticated as application/xml
and supports Shibboleth 1.0, SAML 1.1 and SAML 2.0 (HTTP-POST and HTTP-Redirect SSO bindings). This is the strongest institution-operated
machine-readable surface in this repository. Note that the self-served copy is the Shibboleth stock template — the authoritative,
signed metadata is the RENATER federation copy recorded separately below.
humanURL: https://services.renater.fr/federation/
baseURL: https://idp.ens-lyon.fr/idp/shibboleth
tags:
- Identity
- SAML
- Shibboleth
- Single Sign-On
- Federation
properties:
- type: Website
url: https://idp.ens-lyon.fr/idp/shibboleth
- type: Authentication
url: authentication/ens-lyon-authentication.yml
- type: Conformance
url: conformance/ens-lyon-domain-standards.yml
- aid: ens-lyon:renater-fer-entity
name: RENATER Fédération Éducation-Recherche entity (ENS de Lyon IdP)
x-operator: federation
description: ENS de Lyon's Identity Provider as registered by RENATER, France's national research and education network,
in the Fédération Éducation-Recherche and exported to eduGAIN. The per-entity MDQ endpoint returns the signed EntityDescriptor
(registrationAuthority https://federation.renater.fr/, OrganizationName "Ecole Normale Supérieure de Lyon", mdui:DisplayName
"ENS de Lyon" in fr and en, REFEDS Research & Scholarship entity category). The MDQ service requires an Accept header
of application/samlmetadata+xml. The federation is shared by definition; the IdP behind this entry is ENS de Lyon's own.
humanURL: https://services.renater.fr/federation/
baseURL: https://mdq.federation.renater.fr/fer/entities/https%3A%2F%2Fidp.ens-lyon.fr%2Fidp%2Fshibboleth
tags:
- Identity Federation
- SAML
- eduGAIN
- RENATER
- Metadata
properties:
- type: Documentation
url: https://services.renater.fr/federation/
- type: Authentication
url: authentication/ens-lyon-authentication.yml
- type: Conformance
url: conformance/ens-lyon-domain-standards.yml
- aid: ens-lyon:entra-id-tenant
name: ENS de Lyon Microsoft Entra ID tenant (OIDC + SAML metadata)
x-operator: federation
description: 'The Entra ID tenant behind ens-lyon.fr accounts, resolved from the domain hint: c30cf67d-aee4-44f6-8f1b-12f4935b7d2c,
region scope EU. OIDC discovery and SAML federation metadata both answer unauthenticated. login.microsoftonline.com is
Microsoft''s host and Microsoft''s contract; the tenant is ENS de Lyon''s, which is why this is recorded as federation
rather than institution. There is no public client registration.'
humanURL: https://login.microsoftonline.com/ens-lyon.fr/v2.0/.well-known/openid-configuration
baseURL: https://login.microsoftonline.com/ens-lyon.fr/v2.0/.well-known/openid-configuration
tags:
- Identity
- OpenID Connect
- SAML
- Entra ID
- Single Sign-On
properties:
- type: OpenIDConnectDiscovery
url: https://login.microsoftonline.com/ens-lyon.fr/v2.0/.well-known/openid-configuration
- type: Authentication
url: authentication/ens-lyon-authentication.yml
- aid: ens-lyon:cas-sso
name: ENS de Lyon CAS single sign-on (Apereo CAS 3.0 protocol)
x-operator: institution
description: Apereo CAS service running on ENS de Lyon's own host cas.ens-lyon.fr (140.77.51.3). The CAS 3.0 validation
endpoint /cas/p3/serviceValidate answers unauthenticated with a well-formed cas:serviceResponse document, so the protocol
surface is real and probeable even though every ticket-granting operation requires an ENS de Lyon account. There is no
third-party client registration and no published integration guide.
humanURL: https://cas.ens-lyon.fr/cas/login
baseURL: https://cas.ens-lyon.fr/cas/
tags:
- Identity
- Single Sign-On
- CAS
- Authentication
properties:
- type: Authentication
url: authentication/ens-lyon-authentication.yml
- aid: ens-lyon:hal-oai-pmh
name: HAL OAI-PMH — ens-lyon collection
x-operator: tenant
description: OAI-PMH 2.0 harvesting endpoint scoped to ENS de Lyon's named collection on HAL, the French national open archive
operated by CCSD (CNRS). The Identify response names the repository as HAL, the repositoryIdentifier as hal.archives-ouvertes.fr
and the adminEmail as contact@archives-ouvertes.fr, with an earliestDatestamp of 2002-09-23 and metadata licensed CC0.
The publication metadata inside the scope is ENS de Lyon's; the platform and the contract are HAL's, so the vendor's specification
is deliberately not saved under this institution.
humanURL: https://api.archives-ouvertes.fr/docs/oai
baseURL: https://api.archives-ouvertes.fr/oai/ens-lyon
tags:
- OAI-PMH
- Metadata
- Open Access
- Research Repository
- Harvesting
properties:
- type: Documentation
url: https://api.archives-ouvertes.fr/docs/oai
- type: Website
url: https://ens-lyon.hal.science
- type: Conformance
url: conformance/ens-lyon-domain-standards.yml
- aid: ens-lyon:hal-search
name: HAL Search API — ens-lyon collection
x-operator: tenant
description: HAL's Solr-backed search API scoped to the ENS de Lyon collection. A probe of /search/ens-lyon/?q=*:*&wt=json
returned numFound 106,836 on 2026-09-01, which is the size of ENS de Lyon's deposited scholarly record. Again the scope
is the institution's and the engine is HAL's; recorded as a tenancy rather than as ENS de Lyon's own contract.
humanURL: https://api.archives-ouvertes.fr/docs/search
baseURL: https://api.archives-ouvertes.fr/search/ens-lyon/
tags:
- Search
- REST
- Open Access
- Research
- Publications
properties:
- type: Documentation
url: https://api.archives-ouvertes.fr/docs/search
- type: Website
url: https://ens-lyon.hal.science
- aid: ens-lyon:ror-record
name: ROR registry record (04zmssz18)
x-operator: registry
description: ENS de Lyon's record in the Research Organization Registry, https://ror.org/04zmssz18, typed education and
funder, carrying ISNI 0000 0001 2175 9188, GRID grid.15140.31, Wikidata Q10159 and Crossref Funder ID 501100018692. ROR
is a registry ENS de Lyon is registered IN, which is a fact about the institution; the registry's own API contract belongs
to ROR.
humanURL: https://ror.org/04zmssz18
baseURL: https://api.ror.org/v2/organizations/04zmssz18
tags:
- Registry
- Identifiers
- ROR
- Research
properties:
- type: Website
url: https://ror.org/04zmssz18
- type: Conformance
url: conformance/ens-lyon-domain-standards.yml
- aid: ens-lyon:crossref-funder
name: Crossref Funder Registry entry (501100018692)
x-operator: registry
description: ENS de Lyon is registered in the Crossref Open Funder Registry as https://doi.org/10.13039/501100018692, name
"École Normale Supérieure de Lyon", location France. This is a funder registration, not a Crossref depositor membership
— a members query for the institution returns zero results, and a DataCite clients query returns zero, so neither is claimed
here.
humanURL: https://doi.org/10.13039/501100018692
baseURL: https://api.crossref.org/funders/501100018692
tags:
- Registry
- Identifiers
- Crossref
- Funding
- Research
properties:
- type: Website
url: https://doi.org/10.13039/501100018692
- type: Conformance
url: conformance/ens-lyon-domain-standards.yml
common:
- type: Website
url: https://www.ens-lyon.fr/
- type: TermsOfService
url: https://www.ens-lyon.fr/acces/mentions-legales
- type: Support
url: https://www.ens-lyon.fr/contact
- type: LinkedIn
url: https://fr.linkedin.com/school/ens-lyon/
- type: IdentityFederation
url: https://services.renater.fr/federation/
- type: ResearchRepository
url: https://ens-lyon.hal.science
- type: ResearchComputing
url: https://www.ens-lyon.fr/PSMN/
- type: Authentication
url: authentication/ens-lyon-authentication.yml
- type: Conformance
url: conformance/ens-lyon-domain-standards.yml
- type: DomainSecurity
url: security/ens-lyon-domain-security.yml
- type: JSONLD
url: json-ld/ens-lyon-context.jsonld
- type: Plans
url: plans/ens-lyon-plans-pricing.yml
- type: RateLimits
url: rate-limits/ens-lyon-rate-limits.yml
- type: FinOps
url: finops/ens-lyon-finops.yml
- type: Review
url: review.yml
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
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