io.github.cyanheads/clinicaltrialsgov-mcp-server
clinicaltrialsgov-mcp-server
io.github.cyanheads/clinicaltrialsgov-mcp-server costs 6 728 tokens of context per session. It has 7 tool definitions. That is 3.4 % of a 200k window. Measured 2026-10-03.
Search ClinicalTrials.gov — find studies, retrieve results, match patients to eligible trials.
alive probed 2026-10-03 · HTTP 200
7tools
6.7ktokens for the tool definitions
3.4 %of a 200k context window
864 msto initialize
246 msto list tools
- Endpoint
- https://clinicaltrials.caseyjhand.com/mcp (streamable-http)
- Host
- clinicaltrials.caseyjhand.com
- Protocol
- 2025-11-25
- Reports itself as
- clinicaltrialsgov-mcp-server 2.9.10
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 763 characters
- Repository
- https://github.com/cyanheads/clinicaltrialsgov-mcp-server
- Registry
- active, updated 2026-09-22 · registry entry
- Reachable
- 2 of the last 2 probes
Most expensive tools
| Tool | Tokens | Share of this server |
|---|---|---|
| clinicaltrials_search_studies | 2 086 | 31 % |
| clinicaltrials_get_study_count | 1 481 | 22 % |
| clinicaltrials_get_study_results | 1 201 | 18 % |
| clinicaltrials_find_eligible | 765 | 11 % |
| clinicaltrials_get_study_record | 566 | 8 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Tokens |
|---|---|---|---|---|
| 2026-10-03 20:37 | alive | 864 ms | 7 | 6.7k |
| 2026-10-03 17:53 | alive | 669 ms | 7 | 6.7k |
Badge
[](https://mcp-pulse.ulehla.dev/s/io.github.cyanheads/clinicaltrialsgov-mcp-server)