OMOPHub provides healthcare data developers with API access to more than 120 standardized medical vocabularies, including SNOMED CT, ICD-10, LOINC and RxNorm. It offers terminology search, cross-vocabulary mappings, hierarchy navigation, FHIR-to-OMOP resolution, SDKs and an MCP server. The free plan includes 3,000 API calls per month with a sustained two-requests-per-second limit and basic semantic search. Paid plans increase call allowances and unlock additional features: Pro is $39/month, Scale $79/month and Business $149/month. Vocabulary licensing and plan-specific feature limits should be checked before integration.

Key features

• Medical terminology search and cross-vocabulary mappings
• FHIR-to-OMOP resolution and a FHIR terminology service
• Developer SDKs and an MCP server; availability varies by plan