OxO Get Ontology Mappings

Overview

Get cross-reference mappings between ontology terms using the EBI Ontology Xref Service (OxO). Maps identifiers across biomedical ontologies including Disease Ontology (DOID), HPO, MeSH, SNOMED-CT, UMLS, OMIM, ICD-10, NCIt, and more. Supports configurable mapping distance (1=direct, 2=via intermediary, 3=two hops). Example: HP:0001250 (seizures) maps to 9 terms across MeSH (D012640, D004827), SNOMED-CT (128613002, 91175000), and UMLS (C0014544). Useful for translating between terminologies in clinical and biomedical data integration.

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed

1d ago

Last success

1d ago

Last latency

97ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "distance": {
      "default": 1,
      "description": "Maximum mapping distance. 1=direct mappings only, 2=via one intermediary, 3=via two intermediaries. Higher distance finds more mappings but may be less precise. Default: 1.",
      "type": "integer"
    },
    "size": {
      "default": 20,
      "description": "Maximum number of mappings to return (default 20, max 100).",
      "type": "integer"
    },
    "term_id": {
      "description": "Ontology term identifier to map. Format: PREFIX:ID. Examples: 'HP:0001250' (seizures), 'DOID:9352' (type 2 diabetes), 'GO:0006915' (apoptosis), 'CHEBI:15365' (aspirin), 'OMIM:114480' (breast cancer).",
      "type": "string"
    }
  },
  "required": [
    "term_id"
  ],
  "type": "object"
}

Examples (1)

{
  "distance": 1,
  "size": 1,
  "term_id": ""
}

Identifiers

Catalog ID

tu_OxO_get_ontology_mappings

Tool name

OxO_get_ontology_mappings

Added

2026-04-30 22:47Z

Tags

tooluniverse