Skip to content
mcp/harbor
Verified official

clinicaltrialsgov mcp server MCP

v2.11.3 changelog · 12

io.github.cyanheads/clinicaltrialsgov-mcp-server

Search ClinicalTrials.gov: find studies, retrieve results, match patients to candidate trials.

transport:streamable-http runtime:npm tools:7
View source

Target client

run in your project directory 

claude mcp add --transport http clinicaltrialsgov-mcp-server https://clinicaltrials.caseyjhand.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

clinicaltrials_search_studies

clinicaltrials search studies

clinicaltrials_get_study_record

clinicaltrials get study record

clinicaltrials_get_study_count

clinicaltrials get study count

clinicaltrials_get_field_values

clinicaltrials get field values

clinicaltrials_get_field_definitions

clinicaltrials get field definitions

clinicaltrials_get_study_results

clinicaltrials get study results

clinicaltrials_find_eligible

clinicaltrials find eligible

All 7 tools, one page each

1 prompt you invoke yourself

1 resource you attach as context

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.