# SNOMED CT Terminology — AI Connector SNOMED CT Terminology publishes 15 MCP tools to Claude. Marketplace availability, tool surface, verification tier, and what Node8 measured against the live endpoint. Source: https://node8.ai/ai-connectors/healthcare/snomed-ct-terminology/ --- [AI Connectors](https://node8.ai/ai-connectors/) · [Healthcare & Life Sciences](https://node8.ai/ai-connectors/healthcare/) # SNOMED CT Terminology SNOMED CT lookup, validation and value set expansion Listed in Claude · 15 published tools · Verified partner [Claude connector docs](https://github.com/IHTSDO/snowstorm-mcp-server) [snomed.org](https://snomed.org/) Overview ## What SNOMED CT Terminology does SNOMED CT is the clinical terminology used in electronic health records across more than eighty countries, and this connector is published by SNOMED International itself. It runs as a stateless proxy in front of a Snowstorm terminology server, holding no query content or personal data between requests. Concepts can be looked up by identifier, checked for existence and active status, tested for subsumption against one another, and walked through the IS-A hierarchy in either direction. Value sets expand through Expression Constraint Language. Several editions are addressable, including the International, US and Australian releases. Every tool reads; nothing modifies terminology data. ### Who it is for Clinical terminologists and health informatics engineers working with coded data. ### Tool surface Fifteen tools split three ways: four server and edition introspection calls, seven FHIR shaped operations including snomed\_lookup, snomed\_validate\_code, snomed\_subsumes, snomed\_expand and the hierarchy walkers, and four Snowstorm native calls that bypass FHIR for search and concept detail. Availability ## Where SNOMED CT Terminology is listed SNOMED CT Terminology is listed in the Claude connectors directory only. SNOMED International has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them. The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one. Claude listing ## In the Claude connectors directory SNOMED CT Terminology publishes 15 tools to Claude. That is a mid-sized surface: 59.4% of the 1,253 Claude-listed connectors expose fewer. The median Claude-listed connector filed under Healthcare & Life Sciences publishes 6, so this one runs 9 tools above its bucket's median and ranks 5th of 51 by tool count. It falls in the 11-20 tools band, which holds 22.5% of the Claude directory. ### Measured against the live endpoint A direct call to the endpoint returned 15 tools, matching the 15 the listing publishes. Probed 2026-08-07. #### Tools the server actually returns - `list_terminologies` - `server_health` - `server_capabilities` - `fhir_metadata` - `snomed_lookup` - `snomed_validate_code` - `snomed_subsumes` - `snomed_expand` - `snomed_get_ancestors` - `snomed_get_children` - `snomed_get_descendants` - `snowstorm_list_codesystems` - `snowstorm_list_versions` - `snowstorm_search_concepts` - `snowstorm_get_concept_native` SNOMED CT Terminology publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally. Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there. Publisher SNOMED International Verification Verified partner (37.8% of the Claude directory) Filed under Health & Life Sciences Endpoint `https://snowstorm-mcp.snomedtools.org/mcp` Documentation [Publisher setup docs](https://github.com/IHTSDO/snowstorm-mcp-server) Published tools 15 · 11-20 tools band Depth rank in Healthcare & Life Sciences 5 of 51 Snapshot August 2026 SNOMED CT Terminology carries partner verification in the Claude directory, which 474 of 1,253 listings do (37.8%). That is a review step past self-publishing, not an Anthropic-built server. In the publisher's words ## How SNOMED International describes it > SNOMED CT is the world's most comprehensive clinical terminology, used in electronic health records across more than 80 countries. This connector gives Claude direct access to it through SNOMED International's terminology server. Use it to look up concepts by code or name, validate that a code exists and is active, test subsumption between concepts, navigate the hierarchy (ancestors, children, descendants), and expand value sets using Expression Constraint Language (ECL). It works across all SNOMED CT editions available on the connected backend, including the International, US and Australian editions. Every tool is read-only, the connector never modifies terminology data. It runs as a stateless proxy to the configured Snowstorm instance, holding no query content or personal data between requests. Built and maintained by SNOMED International, the owners of SNOMED CT. Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it. Nearby ## Other Healthcare & Life Sciences connectors ### [BioRender](https://node8.ai/ai-connectors/healthcare/biorender/) Scientific figure templates and icons for research visuals Claude · ChatGPT ### [DocNexus Advanced Search MCP](https://node8.ai/ai-connectors/healthcare/docnexus-advanced-search-mcp/) Search US providers and health systems by claims volume Claude ### [Elicit](https://node8.ai/ai-connectors/healthcare/elicit/) Literature search and structured reports across papers Claude · ChatGPT ### [It's Complicated — Therapist Directory](https://node8.ai/ai-connectors/healthcare/it-s-complicated-therapist-directory/) Search a European directory of independent therapists and counsellors Claude ### [PubMed](https://node8.ai/ai-connectors/healthcare/pubmed/) Search PubMed citations and retrieve PubMed Central full text Claude ### [Synapse.org](https://node8.ai/ai-connectors/healthcare/synapse-org/) Discover Synapse research datasets and read their metadata Claude [All 101 Healthcare & Life Sciences connectors](https://node8.ai/ai-connectors/healthcare/) This is an independent catalogue entry compiled by Node8 from SNOMED CT Terminology's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with SNOMED International, and inclusion here is not an endorsement. ## Want your company reachable inside ChatGPT and Claude? Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot. [See how it works](https://node8.ai/mcp) Book a strategy session