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QuickGO (EBI GO Annotation Browser)

| Endpoint | Description | |----------|-------------| | `/ontology/go/terms/{goId}` | GO term details | | `/ontology/go/terms/{goId}/children` | Child terms | | `/ontology/go/terms/{goId}/ancestors` | Ancestor terms | | `/ontology/go/search?query={term}` | Search GO terms by keyword | | `/annotation/search` | Search annotations by gene/taxon/GO term |

Claude Code Knowledge Pack7/10/2026

Overview

QuickGO (EBI GO Annotation Browser)

Base URL

https://www.ebi.ac.uk/QuickGO/services/

Auth

No auth required.

Key Endpoints

EndpointDescription
/ontology/go/terms/{goId}GO term details
/ontology/go/terms/{goId}/childrenChild terms
/ontology/go/terms/{goId}/ancestorsAncestor terms
/ontology/go/search?query={term}Search GO terms by keyword
/annotation/searchSearch annotations by gene/taxon/GO term

Annotation Search Parameters

  • goId — GO term (e.g. GO:0003723)
  • taxonId — NCBI taxonomy (e.g. 9606 for human)
  • geneProductId — UniProt accession
  • evidence — evidence code (e.g. ECO:0000269)
  • aspect — biological_process, molecular_function, cellular_component
  • limit, page — pagination

Example Calls

# GO term details
https://www.ebi.ac.uk/QuickGO/services/ontology/go/terms/GO:0003723

# Human annotations for RNA binding
https://www.ebi.ac.uk/QuickGO/services/annotation/search?goId=GO:0003723&taxonId=9606&limit=10

# Search terms by keyword
https://www.ebi.ac.uk/QuickGO/services/ontology/go/search?query=apoptosis&limit=5

Response Format

JSON. Annotations: paginated results with gene product, GO term, evidence, qualifier.

Rate Limits

EBI fair-use policy. Use download endpoint for large result sets.