Clinicaltrialsgov Mcp Server

Connects Claude to the ClinicalTrials.gov v2 REST API with seven tools covering the full research workflow: search studies with complex queries and filters, pull full protocol records by NCT ID, extract posted results from completed trials, and match patient profiles to recruiting studies based on demographics and eligibility criteria. The find_eligible tool is especially practical if you're building patient navigation flows or referral systems. Results can run large (70KB per study), so field selection and the summary mode for outcomes data help keep token usage reasonable. Includes field discovery tools to explore valid values and the API's data model. Public hosted instance available at clinicaltrials.caseyjhand.com/mcp if you want to try it without installing anything locally.