SNOMED CT Terminology
Search, validate, and expand SNOMED CT concepts, directly from SNOMED International
SNOMED CT is the world's most comprehensive clinical terminology, used in electronic health records across more than 80 countries. This connector gives your AI direct access to it through SNOMED International's terminology server.
MCP connector
- Server URL
https://snowstorm-mcp.snomedtools.org/mcp- Login
- None
- Protocol
- MCP 2026-07-28
- Instructions
Use the available tools to query SNOMED terminologies via Snowstorm. Each terminology represents a SNOMED edition (e.g. 'snomedct', 'snomedct-us'). If you omit the 'terminology' parameter, the server's default terminology is used. You may optionally pass a backend 'target' to constrain routing/disambiguate. Call first to discover available editions. ECL (Expression Constraint Language) queries are supported via : pass an ECL expression as value_set_url using the format 'http://snomed.info/sct?fhir_vs=ecl/<ECL>' (e.g. 'http://snomed.info/sct?fhir_vs=ecl/<<404684003' for all clinical findings). For hierarchy navigation, use , , or instead of writing ECL manually. Use with ECL for advanced queries such as refset membership or attribute-based constraints. Snowstorm-native tools (snowstorm_*) provide additional capabilities such as full-text concept search and detailed concept retrieval with synonyms.
Tool selection guide
: Primary tool for ECL queries, value set expansion, and concept retrieval. Use for attribute-based queries, refset membership, and counting concepts.
: Look up full details (FSN, synonyms, attributes) for a known concept ID.
: Quick check whether a concept ID is valid and active.
/ancestors/descendants: Hierarchy browsing without writing ECL.
: Free-text search by term (Snowstorm backends only).
Typical workflow
Tools
Reads data15
Skills
None in the store listings or on the server
Tavily#179