Changelog

New FHIR Resolver endpoints translate FHIR Codings and CodeableConcepts to OMOP standard concepts and CDM target tables in a single composite call. Available in the Python and R SDKs.

OMOPHub now hosts the MCP Server at mcp.omophub.com. Connect your AI client with just a URL and API key, no installation required. v1.3.1 also brings per-session HTTP transport and reliability fixes.

MCP Server adds 3 new tools: semantic search with neural embeddings, similar concept discovery, and unified concept exploration - bringing the total to 9 tools.

Python and R SDKs now support bulk lexical and semantic search - up to 50 queries in a single API call.

Bulk search now supports per-query and default-level filters for vocabulary, domain, concept class, standard concept status, and more.

New MCP Server gives AI assistants like Claude direct access to 10M+ OHDSI ATHENA medical vocabulary concepts. No database setup or CSV downloads required.

OHDSI Vocabulary v20260227 is now available on OMOPHub as the default version - featuring HPO as a new vocabulary, 100K+ new concepts, and thousands of improved mappings.

Python and R SDKs now support semantic search and concept similarity with natural language queries.

Find medical concepts using natural language with AI-powered semantic search. Query with everyday terms like 'heart attack' to find 'Myocardial infarction'.

Web-based tool for searching OMOP vocabularies with PHOEBE recommendations and built-in concept set creation with CSV and ATLAS export.

Major SDK update with new hierarchy methods, vocabulary version pinning, and streamlined API parameters.

The official OMOPHub R SDK is now available on CRAN, making it easier than ever to access OHDSI vocabularies from R.

New SDK features including automatic pagination, improved error handling, and comprehensive examples.

Official Python SDK for OMOPHub API with type-safe client, automatic pagination, and comprehensive error handling.

New API endpoint for retrieving recommended concepts from PHOEBE, enabling efficient phenotype development workflows.

Query specific vocabulary versions for reproducible research and compliance requirements.