Ontology

HPO

Human Phenotype Ontology

Standard vocabulary of phenotypic abnormalities in human disease, with a large nervous system abnormality branch used in rare-disease diagnostics.

phenotypeclinicalrare diseaseOBO Foundry

A87

FAIR 45/48

Version 2026-09-01

Evaluated 27 Oct 2026

How scores work

Source & access

Homepagehpo.jax.org Repositorygithub.com DownloadCanonical file / PURL Browse in OLSEMBL-EBI Ontology Lookup Service Browse in BioPortalNCBO BioPortal Browse in OBO FoundryOBO Foundry registry

homepage hpo.jax.org HTTP 200
repository github.com HTTP 200
download purl.obolibrary.org HTTP 200

Portals & registries

Source	ID	Version	Classes	Properties	Individuals	Loaded
OLS (EMBL-EBI)	`hp`	2026-09-01	32,772	373	0	27 Oct 2026
TIB Terminology Service	`hp`	2025-10-22	31,904	361	0	24 Oct 2025
OBO Dashboard	`hp`	2026-09-01	22,670	—	—	16 Sept 2026

Ontology IRI http://purl.obolibrary.org/obo/hp/hp-international.owl
Version IRI http://purl.obolibrary.org/obo/hp/releases/2026-09-01/hp-international.owl

Languages cs de dtp en es fr it ja nl nna pt tr tw zh

Imports from (13)
BSPO ChEBI CL GO HsapDv IAO MPATH NBO OMO PATO PR RO UBERON

Reused by (33)
CIDO DOID GSSO HTN MAXO MONDO OBA OBI ONS SCDO TXPO ADO ARO BMONT CHIRO COHO COVOC CPONT EFO ENM EPIO EUPATH EXMO GENEPIO GENO OHMI ONE ONTONEO OOSTT OPMI PRIDE UPHENO VALUESETS

Logical consistency: consistent · 0 unsatisfiable
OWL 2 DL: yes
ROBOT report: 0 errors · 3,448 warnings · 9 info
OBO principles: FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
Axioms: 178,039 · 9.85% entities reused

OOPS!: 0 critical · 1 important · 2 minor pitfall types

Also registered as
aberowl: HPO bioportal: HP fairsharing: FAIRsharing.kbtt7f obofoundry: hp ols: hp ontobee: HP tib.ts: hp wikidata.entity: Q17027854

Automated evaluation

F Findable FAIR12/12

Persistent identifier (F1)purl.obolibrary.org+4
Indexed in services (F4)6: OLS, TIB, BioPortal, OBO Foundry, Bioregistry, FAIRsharing+5
Citable reference (F2)doi:10.1093/nar/gkaa1043+3

A Accessible FAIR12/12

Homepage reachableHTTP 200+3
Artefact retrievable over HTTP(S) (A1)download HTTP 200+6
Metadata persists in a registry (A2)OBO Foundry, Bioregistry+3

I Interoperable FAIR12/12

Formal machine-readable format (I1)OWL, OBO+5
Semantic-web IRIs (I2)OWL, OBO+3
References other vocabularies (I3)imports 13: bspo, chebi, cl, go, hsapdv, iao, mpath, nbo…+4

R Reusable FAIR9/12

Clear license (R1.1)hpo (not a recognised open license)+2
Release provenance (R1.2)2026-09-01 (version IRI in the artefact)+4
Community standards (R1.3)OBO principles: 11/13 checks pass+3

Q Ontology consistency & quality16/20

Logical consistencyconsistent, 0 unsatisfiable classes (OBO Dashboard)+10
OWL 2 DL profilein OWL 2 DL+2
Upper-ontology alignmentno BFO/COB/DOLCE import found0
Standard relations (RO)imports RO+1
ROBOT report: no errors0 errors+2
ROBOT report: warning density3448 warnings / 22670 classes = 0.150
Pitfall scan: no critical pitfalls0 critical, 1 important, 2 minor pitfall types (SchemaScope Python scan (OOPS! pitfall subset))+1

M Maintenance16/16

Recency2026-10-27 → 0.0 months (≤ 3 months)+10
Release cadence (12 months)7 releases (GitHub releases)+6

U Community adoption10/16

Documented adopting projects2 projects+2
Reused by other ontologies33: cido, doid, gsso, htn, maxo, mondo…+4
Community signalmax(stars 380 → 4, citations 0 → 0)+4

P Penalties (inactivity & inconsistency)0

Time since last activity0.0 years → 4 × max(0, 0.0 − 1)0
Inactive statusnot archived, legacy or inactive0
Consistencyconsistent, no unsatisfiable classes0

FAIR subtotal 45/48 · earned 87/100 = 87/100 → grade A

Community adoption 2

Genomics England
Phenotyping in rare-disease programmes
Curated by SchemaScope
monarchinitiative.org
HPO is used by the Monarch Initiative for phenotype annotations.
Source: OBO Foundry registry

Know a project that uses HPO? Suggest it.

History & changes 2 runs

Score over time

Metrics across runs

	27 Oct 2026 rubric v3.5	26 Oct 2026 rubric v3.4
Score	87	87
Findable	12	12
Accessible	12	12
Interoperable	12	12
Reusable	9	9
Quality	16	16
Maintenance	16	16
Adoption	10	10
Penalty	0	0
Logically consistent	yes	yes
Unsatisfiable classes	0	0
In OWL 2 DL	yes	yes
ROBOT errors	0	0
ROBOT warnings	3,448	3,448
Critical pitfalls	0	—
Imported vocabularies	13	13
Reused by	33	33

Newest run first. Highlighted cells changed since the run before; hover to see the earlier value. A rubric change alone can move points.

No changes detected between runs.

Run	Score	FAIR	Version evaluated	Terms	Snapshot
27 Oct 2026, 21:58 UTC	87 A	45	2026-09-01	32,772	JSON
26 Oct 2026, 03:31 UTC	87 A	45	2026-09-01	32,772	JSON

Provenance

Every fact on this page was fetched automatically. Each row shows where it came from and when. If a source fails, the last good value is kept and marked “carried forward”.

Fact	Source	Retrieved
Homepage link check (HTTP 200)	hpo.jax.org	27 Oct 2026, 21:58 UTC
Repository link check (HTTP 200)	github.com	27 Oct 2026, 21:58 UTC
Download link check (HTTP 200)	purl.obolibrary.org	27 Oct 2026, 21:58 UTC
Artefact header (version IRI)	release-assets.githubusercontent.com	27 Oct 2026, 21:58 UTC
Git refs (commit b35ea17, latest tag v2026-09-01)	github.com	27 Oct 2026, 21:58 UTC
GitHub repository statistics	api.github.com	27 Oct 2026, 21:58 UTC
OLS classes, imports, version & release	ebi.ac.uk	27 Oct 2026, 21:58 UTC
OBO Foundry status, license & usages	obofoundry.org	27 Oct 2026, 21:58 UTC
TIB Terminology Service metrics	service.tib.eu	27 Oct 2026, 21:58 UTC
Bioregistry mappings, dependencies & reuse	bioregistry.io	27 Oct 2026, 21:58 UTC
OBO Dashboard (checked 16 Sept 2026)	dashboard.obofoundry.org	27 Oct 2026, 21:58 UTC
OOPS! pitfall scan	oops.linkeddata.es	27 Oct 2026, 21:37 UTC