OLS MCP Server
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Related Servers
- AlicenseNot gradedqualityBmaintenanceEnables querying and browsing ontologies from the EBI Ontology Lookup Service, including searching for terms, retrieving term details, and navigating ontology hierarchies via natural language.327 npmMIT
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- FlicenseNot gradedqualityDmaintenanceEnables AI agents to search, explore, and interact with ontologies and semantic resources on AgroPortal via the OntoPortal ecosystem.-
- AlicenseNot gradedqualityBmaintenanceEnables AI agents to browse the Gene Ontology through the EBI QuickGO API, including keyword search for GO terms, retrieval of a term's name, aspect, definition and synonyms by id, and listing the GO annotations tied to a UniProt accession. Runs keyless over HTTP or as a local stdio server, with an optional gateway route that lets plain-English questions be answered without choosing tools manually.318 npmMIT
- AlicenseNot gradedqualityCmaintenanceEnables term search, class lookup, and cross-ontology mappings across NCBO BioPortal's ~1,300 biomedical ontologies.MIT

OMOPHub MCP Serverofficial
AlicenseAqualityAmaintenanceProvides AI agents with instant access to 10M+ OMOP medical vocabulary concepts for searching, mapping, and navigating clinical codes across SNOMED, ICD-10, RxNorm, LOINC, and more.11109 npm6MIT
TDQS
Scored across 7 tools
Each tool has a clearly distinct purpose with no ambiguity: find_similar_terms uses embeddings for similarity, get_ontology_info and get_term_info retrieve metadata, get_term_ancestors and get_term_children handle hierarchical relationships, and search_ontologies and search_terms perform different types of searches. The descriptions clearly differentiate their functions.
All tools follow a consistent verb_noun pattern with snake_case: find_similar_terms, get_ontology_info, get_term_ancestors, get_term_children, get_term_info, search_ontologies, and search_terms. The naming is predictable and readable throughout the set.
With 7 tools, this is well-scoped for an ontology server, covering core operations like searching, retrieving metadata, and exploring term hierarchies. Each tool earns its place without being excessive or insufficient for the domain.
The tool set provides strong coverage for ontology exploration, including search, metadata retrieval, and hierarchical navigation. A minor gap is the lack of update or management tools (e.g., create_term, update_ontology), but this is reasonable for a read-focused server, and agents can work effectively with the provided tools.