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Search for concepts by text:

Parameters

Filter by Vocabulary

Restrict search to specific vocabularies:

Filter by Domain

Search within specific domains:

Filter by Concept Class

Search for specific concept classes:

Standard Concepts Only

Filter to standard concepts:

Search with Synonyms

Include concept synonyms in search:

Combined Filters

Autocomplete

Get suggestions as the user types:

Pagination

Manual Pagination

Auto-Pagination Iterator

Iterate through all results automatically:
Use advanced search with additional filtering options and facets:

Advanced Search Parameters

Relationship Filters

Apply relationship-based filtering:
Search for concepts using natural language with neural embeddings. Semantic search understands meaning, not just keywords.

Semantic Search Parameters

Semantic Search Iterator

Iterate through all semantic search results with automatic pagination:
Search for multiple queries in a single API call (up to 50 queries). Much more efficient than individual calls when you have many terms to look up.

Bulk Search Parameters

With Shared Defaults

Search for multiple natural-language queries using neural embeddings in a single call (up to 25 queries).

Bulk Semantic Parameters

Find Similar Concepts

Find concepts similar to a reference concept or query. Provide exactly one of: concept_id, concept_name, or query.

Similar Concepts Parameters

Algorithm Comparison

Async Similar Concepts