King Fahd University of Petroleum & Minerals website screenshot

King Fahd University of Petroleum & Minerals

King Fahd University of Petroleum & Minerals (KFUPM) is a public research university in Dhahran, Saudi Arabia. Its programmable footprint is small, and most of what previously appeared in this profile was not its own: 37 OpenAPI definitions attributed to KFUPM here were the Elsevier Pure Web Services contract (info.title "Pure API", contact pure-support@elsevier.com, version 5.35.3-4) served from the university's Pure tenant at pure.kfupm.edu.sa. That contract is Elsevier's and has been removed; the tenant relationship is recorded instead. What KFUPM genuinely operates is three surfaces on its own infrastructure. Its identity provider at sts.kfupm.edu.sa publishes signed SAML 2.0 federation metadata and an OpenID Connect discovery document, and is registered in eduGAIN through MAEEN, the Saudi identity federation, with scope kfupm.edu.sa — an institution-operated machine-readable surface by definition. The KFUPM ePrints repository (EPrints 3.4.1) serves a live, unauthenticated OAI-PMH 2.0 harvesting interface with six working verbs and six metadata formats, plus record-level and search-level JSON export whose record model carries a KFUPM-local `arabic_abstract` field. The registrar publishes a live course offering system, but it answers only an HTML form POST and returns no machine-readable format. There is no central developer portal, no API documentation, no changelog, no status page, no robots.txt, no sitemap and no llms.txt on the university's own domain. The library discovery surface sits behind a Cloudflare bot challenge. KFUPM does not publish an OpenAPI for anything it operates; the three descriptions in this repo were derived by probing the live endpoints.

King Fahd University of Petroleum & Minerals publishes 3 APIs on the APIs.io network: KFUPM Identity Federation (SAML 2.0 + OpenID Connect), KFUPM ePrints OAI-PMH Repository Interface, and KFUPM ePrints Export & Search (JSON). Tagged areas include University, Higher Education, Education, Research, and Saudi Arabia.

King Fahd University of Petroleum & Minerals’ developer surface includes engineering blog, authentication, and 21 more developer resources.

39.6/100 developing ▬ flat Agent 24/100 agent aware self hosted Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFree⚡ Free to try
3 APIs
UniversityHigher EducationEducationResearchSaudi ArabiaMiddle EastIdentity FederationResearch RepositoryOpen AccessOAI-PMHThesesCourse Catalog

What this lets a business do 3

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Research & Scholarship Management
BC-4780
activityapplicationawardcontractdataSetethicalReview
Cybersecurity Management
BC-620
user
Curriculum & Programme Management
BC-4700
course

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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/kfupm: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

KFUPM 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 metadata (80 KB, entityID http://sts.kfupm.edu.sa/adfs/services/trust, ...

KFUPM ePrints OAI-PMH Repository Interface

Live OAI-PMH 2.0 harvesting interface for the KFUPM ePrints institutional repository (EPrints 3.4.1), self-hosted on the university's own domain. repositoryIdentifier eprints.kf...

KFUPM ePrints Export & Search (JSON)

Record-level and search-level JSON from the same self-hosted KFUPM ePrints repository, served without authentication. /cgi/export/eprint/{eprintid}/JSON/{filename} returns the f...

KFUPM Elsevier Pure Web Services (tenant deployment)

KFUPM runs an Elsevier Pure research information system at pure.kfupm.edu.sa and its Pure Web Services REST API is reachable at /ws/api, authenticated with a Pure api-key header...

Pricing Plans 1

Published pricing tiers and plan structures.

Kfupm Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kfupm Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Kfupm Finops

FINOPS

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

KFUPM ePrints Record

0 properties

JSON SCHEMA

Examples 1

Example request and response payloads for these APIs.

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Kfupm Authentication

openIdConnect/oauth2/saml2/apiKey/none · 4 schemes

SECURITY

Kfupm Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Kfupm Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 3

Authentication, authorization, and security posture

Learn 1

Tutorials, courses, talks, and written guidance

Operate 1

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 3

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: kfupm
name: King Fahd University of Petroleum & Minerals
x-type: university
x-category: Public Research University
description: 'King Fahd University of Petroleum & Minerals (KFUPM) is a public research university in Dhahran, Saudi Arabia.
  Its programmable footprint is small, and most of what previously appeared in this profile was not its own: 37 OpenAPI definitions
  attributed to KFUPM here were the Elsevier Pure Web Services contract (info.title "Pure API", contact pure-support@elsevier.com,
  version 5.35.3-4) served from the university''s Pure tenant at pure.kfupm.edu.sa. That contract is Elsevier''s and has been
  removed; the tenant relationship is recorded instead.

  What KFUPM genuinely operates is three surfaces on its own infrastructure. Its identity provider at sts.kfupm.edu.sa publishes
  signed SAML 2.0 federation metadata and an OpenID Connect discovery document, and is registered in eduGAIN through MAEEN,
  the Saudi identity federation, with scope kfupm.edu.sa — an institution-operated machine-readable surface by definition.
  The KFUPM ePrints repository (EPrints 3.4.1) serves a live, unauthenticated OAI-PMH 2.0 harvesting interface with six working
  verbs and six metadata formats, plus record-level and search-level JSON export whose record model carries a KFUPM-local
  `arabic_abstract` field. The registrar publishes a live course offering system, but it answers only an HTML form POST and
  returns no machine-readable format.

  There is no central developer portal, no API documentation, no changelog, no status page, no robots.txt, no sitemap and
  no llms.txt on the university''s own domain. The library discovery surface sits behind a Cloudflare bot challenge. KFUPM
  does not publish an OpenAPI for anything it operates; the three descriptions in this repo were derived by probing the live
  endpoints.'
type: Index
deliveryModel:
  model: self-hosted
  open_source: false
  commercial: false
  callable_host: true
  label: Institution-operated endpoints · you call their host
  confidence: high
  source:
  - probed
  generated: '2026-08-30'
  method: probed
accessModel:
  pricing: free
  onboarding: none
  trial: false
  try_now: true
  public: true
  label: Free · No signup, no developer portal
  confidence: high
  source:
  - probed
  - authentication
  generated: '2026-08-30'
  method: probed
position: Consuming
access: Public
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kfupm.png
url: https://raw.githubusercontent.com/api-evangelist/kfupm/refs/heads/main/apis.yml
tags:
- University
- Higher Education
- Education
- Research
- Saudi Arabia
- Middle East
- Identity Federation
- Research Repository
- Open Access
- OAI-PMH
- Theses
- Course Catalog
created: '2026-06-03'
modified: '2026-08-30'
specificationVersion: '0.23'
apis:
- aid: kfupm:identity-federation
  name: KFUPM Identity Federation (SAML 2.0 + OpenID Connect)
  x-operator: institution
  description: KFUPM's own identity provider at sts.kfupm.edu.sa (Microsoft AD FS). Publishes signed SAML 2.0 federation metadata
    (80 KB, entityID http://sts.kfupm.edu.sa/adfs/services/trust, IDPSSODescriptor with HTTP-Redirect and HTTP-POST SSO bindings,
    63 attributes) and an OpenID Connect discovery document for issuer https://sts.kfupm.edu.sa/adfs with a two-key RS256
    JWKS. Registered in eduGAIN as entity 671205 by MAEEN (SA-MIF) with scope kfupm.edu.sa, first seen 2025-05-12. Discovery
    is unauthenticated; relying-party onboarding is not self-serve.
  humanURL: https://www.kfupm.edu.sa/
  baseURL: https://sts.kfupm.edu.sa
  tags:
  - Identity Federation
  - SAML
  - OpenID Connect
  - Authentication
  - eduGAIN
  - Single Sign-On
  tags_raw:
  - Identity Federation
  - SAML
  - OpenID Connect
  - OAuth 2.0
  - eduGAIN
  - Single Sign-On
  properties:
  - type: OpenAPI
    url: openapi/kfupm-identity-federation-openapi.yml
  - type: Metadata
    url: https://sts.kfupm.edu.sa/FederationMetadata/2007-06/FederationMetadata.xml
  - type: OpenIDConnectDiscovery
    url: https://sts.kfupm.edu.sa/adfs/.well-known/openid-configuration
  - type: JWKS
    url: https://sts.kfupm.edu.sa/adfs/discovery/keys
  - type: Authentication
    url: authentication/kfupm-authentication.yml
  - type: Scopes
    url: scopes/kfupm-scopes.yml
  - type: Conformance
    url: conformance/kfupm-conformance.yml
  - type: Examples
    url: examples/kfupm-sts-openid-configuration.json
  - type: Vocabulary
    url: vocabulary/kfupm-vocabulary.yml
  - type: Lifecycle
    url: lifecycle/kfupm-lifecycle.yml
- aid: kfupm:eprints-oai-pmh
  name: KFUPM ePrints OAI-PMH Repository Interface
  x-operator: institution
  description: Live OAI-PMH 2.0 harvesting interface for the KFUPM ePrints institutional repository (EPrints 3.4.1), self-hosted
    on the university's own domain. repositoryIdentifier eprints.kfupm.edu.sa, adminEmail eprints-system@kfupm.edu.sa, granularity
    to the second, deletedRecord policy persistent. All six verbs verified live 2026-08-30; six metadata formats offered (didl,
    mets, oai_bibl, oai_dc, rdf, uketd_dc). No authentication. No metadata, data or submission policy is declared — the Identify
    response still carries the EPrints defaults, so reuse rights for harvested metadata are undeclared.
  humanURL: https://eprints.kfupm.edu.sa/
  baseURL: https://eprints.kfupm.edu.sa/cgi/oai2
  tags:
  - OAI-PMH
  - Research Repository
  - Harvesting
  - Open Access
  - Theses
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/kfupm-eprints-oai-pmh-openapi.yml
  - type: Documentation
    url: https://eprints.kfupm.edu.sa/
  - type: Conformance
    url: conformance/kfupm-conformance.yml
  - type: Examples
    url: examples/kfupm-eprints-oai-identify.xml
  - type: Examples
    url: examples/kfupm-eprints-oai-getrecord.xml
  - type: Errors
    url: errors/kfupm-errors.yml
  - type: Vocabulary
    url: vocabulary/kfupm-vocabulary.yml
  - type: Lifecycle
    url: lifecycle/kfupm-lifecycle.yml
- aid: kfupm:eprints-export
  name: KFUPM ePrints Export & Search (JSON)
  x-operator: institution
  description: Record-level and search-level JSON from the same self-hosted KFUPM ePrints repository, served without authentication.
    /cgi/export/eprint/{eprintid}/JSON/{filename} returns the full record as application/json; /cgi/search/simple?q=…&output=JSON
    returns a JSON result set. The record model carries a KFUPM-local `arabic_abstract` alongside `english_abstract`, KFUPM
    division and subject codes, and embargo state on attached documents. It also exposes personal data — depositor contact_email,
    advisor and committee names — and internal EPrints fields (`dir`, `userid`). There is no published contract, rate limit
    or terms for these endpoints.
  humanURL: https://eprints.kfupm.edu.sa/
  baseURL: https://eprints.kfupm.edu.sa/cgi
  tags:
  - Research Repository
  - Search
  - JSON
  - Open Access
  - Theses
  properties:
  - type: OpenAPI
    url: openapi/kfupm-eprints-export-openapi.yml
  - type: Documentation
    url: https://eprints.kfupm.edu.sa/
  - type: JSONSchema
    url: json-schema/kfupm-eprints-record-schema.json
  - type: Errors
    url: errors/kfupm-errors.yml
  - type: Lifecycle
    url: lifecycle/kfupm-lifecycle.yml
- aid: kfupm:pure-tenant
  name: KFUPM Elsevier Pure Web Services (tenant deployment)
  x-operator: tenant
  x-vendor: Elsevier
  x-vendor-product: Pure (Pure API 5.35.3-4)
  description: KFUPM runs an Elsevier Pure research information system at pure.kfupm.edu.sa and its Pure Web Services REST
    API is reachable at /ws/api, authenticated with a Pure api-key header. The deployment, the tenant and the research data
    are KFUPM's; the contract is Elsevier's. Its OpenAPI declares info.title "Pure API", contact pure-support@elsevier.com
    and version 5.35.3-4 — the same document at least nine other universities in this catalog were also credited with. It
    is recorded here as a relationship and is deliberately NOT saved as a KFUPM contract. Score the interface against Elsevier's
    own repo. Pure administration is itself fronted by KFUPM's SAML IdP (/admin/saml2/authenticate/pure).
  humanURL: https://pure.kfupm.edu.sa/
  baseURL: https://pure.kfupm.edu.sa/ws/api
  tags:
  - Research Information
  - CRIS
  - Tenant
  - Vendor Contract
  - Elsevier Pure
  properties:
  - type: Documentation
    url: https://pure.kfupm.edu.sa/ws/api/
  - type: ResearchPortal
    url: https://pure.kfupm.edu.sa/
  - type: OAI-PMH
    url: https://pure.kfupm.edu.sa/ws/oai
    name: Pure OAI-PMH endpoint — live and unauthenticated, repositoryName "Pure OAI Repository", adminEmail pure.admin@kfupm.edu.sa,
      OpenAIRE CERIF 1.2 profile. Elsevier's implementation on KFUPM's tenant, so it is recorded here rather than credited
      as institutional conformance.
common:
- type: Website
  url: https://www.kfupm.edu.sa/
- type: TermsOfService
  url: https://www.kfupm.edu.sa/terms-of-use
- type: PrivacyPolicy
  url: https://www.kfupm.edu.sa/privacy-policy
- type: Blog
  url: https://news.kfupm.edu.sa/
- type: LinkedIn
  url: https://www.linkedin.com/school/kfupm/
- type: IdentityFederation
  url: https://sts.kfupm.edu.sa/FederationMetadata/2007-06/FederationMetadata.xml
  name: KFUPM SAML 2.0 identity provider metadata (eduGAIN via MAEEN)
- type: ResearchRepository
  url: https://eprints.kfupm.edu.sa/
  name: KFUPM ePrints — self-hosted EPrints 3.4.1 institutional repository
- type: ResearchPortal
  url: https://pure.kfupm.edu.sa/
  name: KFUPM Research Portal — Elsevier Pure tenant
- type: CourseCatalog
  url: https://registrar.kfupm.edu.sa/courses-classes/course-offering1/
  name: KFUPM course offering — institution-operated, HTML form POST only, no machine-readable format
- type: LibraryCatalog
  url: https://library-web.kfupm.edu.sa/
  name: KFUPM Library web — reachable (200). No documented public API or discovery endpoint found. The library.kfupm.edu.sa
    host is live but returns 403 behind a Cloudflare bot challenge.
- type: AITooling
  url: https://www.kfupm.edu.sa/about-us/discover/ai-x
  name: KFUPM AI+X — institutional AI programme, including ChatGPT Edu deployment
- type: GitHubOrganization
  url: https://github.com/KFUPM-OSC
  name: KFUPM Open Source Club — student-run, 2 public repositories
- type: Authentication
  url: authentication/kfupm-authentication.yml
- type: Scopes
  url: scopes/kfupm-scopes.yml
- type: Conformance
  url: conformance/kfupm-conformance.yml
- type: Errors
  url: errors/kfupm-errors.yml
- type: Lifecycle
  url: lifecycle/kfupm-lifecycle.yml
- type: Vocabulary
  url: vocabulary/kfupm-vocabulary.yml
- type: DomainSecurity
  url: security/kfupm-domain-security.yml
- type: Plans
  url: plans/kfupm-plans-pricing.yml
- type: RateLimits
  url: rate-limits/kfupm-rate-limits.yml
- type: FinOps
  url: finops/kfupm-finops.yml
- type: Review
  url: review.yml
x-coverage:
  state: covered
  reason: covered
  detail: 'Three institution-operated surfaces were found, probed and described: a SAML 2.0 + OpenID Connect identity provider
    registered in eduGAIN via MAEEN, a live OAI-PMH 2.0 endpoint on a self-hosted EPrints repository, and unauthenticated
    JSON record export and search on the same repository. None of them was previously in this profile. What WAS in this profile
    — 37 OpenAPIs and 37 apis[] entries — was one Elsevier Pure contract served from the university''s Pure tenant; it has
    been removed and the tenant recorded once instead. KFUPM publishes no developer portal, no API documentation, no OpenAPI,
    no changelog, no status page, no robots.txt, no sitemap and no llms.txt on its own domain; the three OpenAPI descriptions
    in this repo are derived from live probes and are marked as such. Two further institution-operated surfaces exist but
    are not machine-readable: the registrar course offering system answers only an HTML form POST, and library.kfupm.edu.sa
    is live behind a Cloudflare bot challenge. Expect this re-profile to lower KFUPM''s score — the previous score was largely
    Elsevier''s contract quality.'
  generated: '2026-08-30'
  method: probed
  evidence:
  - url: https://sts.kfupm.edu.sa/FederationMetadata/2007-06/FederationMetadata.xml
    status: 200
    note: application/samlmetadata+xml, 80232 bytes, entityID http://sts.kfupm.edu.sa/adfs/services/trust
  - url: https://sts.kfupm.edu.sa/adfs/.well-known/openid-configuration
    status: 200
    note: OIDC discovery, issuer https://sts.kfupm.edu.sa/adfs
  - url: https://sts.kfupm.edu.sa/adfs/discovery/keys
    status: 200
    note: JWKS, 2 RSA RS256 signing keys
  - url: https://technical.edugain.org/api.php?action=list_entities&format=json
    status: 200
    note: eduGAIN entity 671205, regauth https://www.maeen.sa, code SA-MIF, scope kfupm.edu.sa
  - url: https://eprints.kfupm.edu.sa/cgi/oai2?verb=Identify
    status: 200
    note: OAI-PMH 2.0, KFUPM ePrints, EPrints 3.4.1
  - url: https://eprints.kfupm.edu.sa/cgi/oai2?verb=ListMetadataFormats
    status: 200
    note: didl, mets, oai_bibl, oai_dc, rdf, uketd_dc
  - url: https://eprints.kfupm.edu.sa/cgi/oai2?verb=GetRecord&identifier=oai:eprints.kfupm.edu.sa:144629&metadataPrefix=oai_dc
    status: 200
  - url: https://eprints.kfupm.edu.sa/cgi/oai2?verb=Bogus
    status: 200
    note: protocol error badVerb/badArgument returned with HTTP 200
  - url: https://eprints.kfupm.edu.sa/cgi/export/eprint/144629/JSON/kfupm-eprint-144629.js
    status: 200
    note: application/json, 14167 bytes
  - url: https://eprints.kfupm.edu.sa/cgi/search/simple?q=petroleum&output=JSON
    status: 200
    note: application/json, 287836 bytes
  - url: https://pure.kfupm.edu.sa/ws/api/
    status: 200
    note: '"Pure API documentation" — Elsevier product docs on a KFUPM tenant subdomain'
  - url: https://registrar.kfupm.edu.sa/courses-classes/course-offering1/
    status: 200
    note: course offering form; POST /course-offerings returns HTML only, no JSON
  - url: https://library.kfupm.edu.sa/
    status: 403
    note: live, Cloudflare bot challenge — machine-unreadable, not dead
  - url: https://www.kfupm.edu.sa/robots.txt
    status: 404
    note: no robots.txt, no sitemap.xml, no llms.txt
  - url: https://pure.kfupm.edu.sa/ws/api/524/openapi.json
    status: 401
    note: '''Request not authorized. Please provide a valid API key for access.'' The Pure OpenAPI on this tenant is NOT publicly
      fetchable — the 37 specs previously in this repo could not have come from KFUPM''s host.'
  - url: https://pure.kfupm.edu.sa/ws/oai?verb=Identify
    status: 200
    note: Pure's own OAI-PMH endpoint, unauthenticated. repositoryName 'Pure OAI Repository', adminEmail pure.admin@kfupm.edu.sa,
      OpenAIRE CERIF 1.2. Tenant-operated.
  - url: https://library-web.kfupm.edu.sa/
    status: 200
    note: KFUPM Library web; no documented public API found
  - url: https://github.com/kfupm
    status: 200
    note: empty unverified GitHub org — 0 public repos, no description, untouched since 2019. Removed as a pointer; ownership
      by the university is unevidenced.
  - url: https://www.kfupm.edu.sa/terms-of-use
    status: 200
  - url: https://www.kfupm.edu.sa/privacy-policy
    status: 200
  - url: https://www.kfupm.edu.sa/about-us/discover/ai-x
    status: 200
  - url: https://github.com/KFUPM-OSC
    status: 200
    note: student Open Source Club, 2 public repositories
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider 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 providers

9 MCP tools reach this
  • find_providersBrowse and filter every provider in the catalog.
  • get_provider_artifactsEvery artifact this provider publishes, grouped by type.
  • get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
  • get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • 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 provider
curl "https://apis.io/api/v1/providers/kfupm"
All providers
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose
curl "https://apis.io/api/v1/providers/kfupm/operations?limit=25"
How their score was established
curl "https://apis.io/api/v1/providers/kfupm/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.