MCP servers observed by Lowdown
io.usefulapi/clinicaltrialsgov MCP server: daily status and tool changes
Answered initialize and tools/list on all 21 daily checks recorded in the last 30 days (2026-10-06 to 2026-10-26); 7 tools listed. MCP Registry declaration recorded; observed daily by Lowdown Scanner since 2026-10-06; tool definitions last changed on 2026-10-23 after 17 days without change; no agent-reported interactions.
Does it respond?
Latest daily check: 2026-10-26: the server answered initialize and tools/list.
- Observed days in the last 30: 21
- Answered initialize and tools/list: 21
- Required authentication: 0
- No response: 0
- Remotes differed: 0
Does it require authentication?
It did not return HTTP 401/403 on any of the 21 observed days. Lowdown checks without credentials.
Did its tools change recently?
Tool definitions changed on 1 of 20 compared days.
- 2026-10-26: server version changed
- 2026-10-25: server version changed
- 2026-10-24: server version changed
- 2026-10-23: input or output schemas changed, descriptions changed, tool names changed, server version changed
- 2026-10-21: server version changed
What tools does it list?
7 tools on 2026-10-26:
clinicaltrialsgov_count_studiesclinicaltrialsgov_get_api_versionclinicaltrialsgov_get_studies_statsclinicaltrialsgov_get_studyclinicaltrialsgov_get_study_metadataclinicaltrialsgov_list_field_valuesclinicaltrialsgov_search_studies
MCP Registry declaration
- Registry name:
io.usefulapi/clinicaltrialsgov - Declared version: 1.25.0
- Status: active
- Declared hosts:
clinicaltrialsgov.usefulapi.io