Ontology Term Record by OBO ID (OLS)
ols/ontology-term
The full Ontology Lookup Service record of one term, given its ontology id and OBO id (for example go and GO:0008150, hp and HP:0005978): label, definition, synonyms, cross-references, subsets, whether it is obsolete, a root, or has children, and links to its parents, children and ancestors. A term or ontology OLS does not hold is refused as invalid input. OLS data, EMBL-EBI, served by Eden Engine; not an official OLS product.
Price
$0.0026 per call
You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.
Data source
Ontology Lookup Service (EMBL-EBI)
Data from the Ontology Lookup Service (OLS4), EMBL-EBI (https://www.ebi.ac.uk/ols4). Each ontology keeps the licence its authors chose; see the ontology's own record. Served by Eden Engine; not an official OLS or EMBL-EBI product.
Use it
Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.
Connect once and your AI can find and run this tool, and any other it needs.
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "ols/ontology-term" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "ols/ontology-term" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "ols/ontology-term", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "ols/ontology-term", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.
Pricing
Every charge this tool can incur.
| Charge | Price |
|---|---|
Per call | $0.0026 |
- Updated
- Oct 25, 2026
Input and output schemas
Input schema
{
"type": "object",
"required": [
"ontology",
"obo_id"
],
"properties": {
"obo_id": {
"type": "string",
"pattern": "^[A-Za-z][A-Za-z0-9_]{0,19}:[A-Za-z0-9_.-]{1,40}$",
"description": "Prefixed term id, for example GO:0008150 or HP:0005978."
},
"ontology": {
"type": "string",
"pattern": "^[a-z0-9_]{1,40}$",
"description": "Ontology id, lower case, for example go, hp, mondo, efo, chebi, uberon or ncbitaxon."
}
},
"additionalProperties": false
}Output schema
{
"type": "object",
"required": [
"_embedded"
],
"properties": {
"page": {
"type": "object",
"properties": {
"size": {
"type": "integer"
},
"number": {
"type": "integer"
},
"totalPages": {
"type": "integer"
},
"totalElements": {
"type": "integer"
}
},
"description": "Paging block: size, totalElements, totalPages and number.",
"additionalProperties": true
},
"_links": {
"type": "object",
"additionalProperties": true
},
"_embedded": {
"type": "object",
"properties": {
"terms": {
"type": "array",
"items": {
"type": "object",
"properties": {
"iri": {
"type": "string",
"description": "Full IRI of the term."
},
"lang": {
"type": [
"string",
"null"
]
},
"label": {
"type": "string",
"description": "Term label."
},
"_links": {
"type": [
"object",
"null"
],
"additionalProperties": true
},
"obo_id": {
"type": [
"string",
"null"
],
"description": "Prefixed identifier such as GO:0008150; may be absent for terms without an OBO-style id."
},
"is_root": {
"type": [
"boolean",
"null"
]
},
"obo_xref": {
"type": [
"array",
"null"
],
"items": {}
},
"synonyms": {
"type": [
"array",
"null"
],
"items": {}
},
"in_subset": {
"type": [
"array",
"null"
],
"items": {}
},
"annotation": {
"type": [
"object",
"null"
],
"additionalProperties": true
},
"short_form": {
"type": [
"string",
"null"
]
},
"description": {
"type": [
"array",
"null"
],
"items": {},
"description": "Definition text(s)."
},
"is_obsolete": {
"type": [
"boolean",
"null"
]
},
"obo_synonym": {
"type": [
"array",
"null"
],
"items": {}
},
"has_children": {
"type": [
"boolean",
"null"
]
},
"ontology_iri": {
"type": [
"string",
"null"
]
},
"ontology_name": {
"type": [
"string",
"null"
]
},
"ontology_prefix": {
"type": [
"string",
"null"
]
},
"term_replaced_by": {
"type": [
"string",
"null"
]
},
"is_preferred_root": {
"type": [
"boolean",
"null"
]
},
"is_defining_ontology": {
"type": [
"boolean",
"null"
]
},
"obo_definition_citation": {
"type": [
"array",
"null"
],
"items": {}
}
},
"additionalProperties": true
}
}
},
"additionalProperties": true
}
},
"description": "HAL response: the matching term records in `_embedded.terms`.",
"additionalProperties": true
}