A side-by-side look at the Clinicaltrialsgov MCP Server and Vitamind MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Clinicaltrialsgov MCP Server for biology & bioinformatics work as a local process; choose Vitamind MCP for biology & bioinformatics as a local process. You can also run both side by side in one mcpServers block.
clinicaltrials_search_studies, clinicaltrials_get_study_record, clinicaltrials_get_study_count.VITAMIND_MCP_URL.search_city, get_sun_times, get_vitamin_d_window.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Biology & Bioinformatics | Biology & Bioinformatics |
| Quality signal | 61/100 · Good | 55/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | None listed | VITAMIND_MCP_URL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 99 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 7 | 6 |
| Full listing | View Clinicaltrialsgov MCP Server | View Vitamind MCP |
clinicaltrials_search_studiesSearch studies with full-text and field-specific queries, status/phase/geographic filters, pagination, sorting, and field selectionclinicaltrials_get_study_recordFetch a single study by NCT ID — full protocol record with optional location/outcome/reference capsclinicaltrials_get_study_countFast total study count for a query, without fetching dataclinicaltrials_get_field_valuesDiscover valid values for API fields, with per-value study countsclinicaltrials_get_field_definitionsResolve valid field names — keyword search, path drill-down, or top-level overviewclinicaltrials_get_study_resultsFetch posted results — outcomes, adverse events, participant flow, baseline — for completed studiesclinicaltrials_find_eligibleMatch patient demographics and conditions to candidate recruiting trials, without checking inclusion/exclusion criteriasearch_cityFind a city and its coordinates, in any of the app's six languagesget_sun_timesSunrise, sunset, solar noon, civil dawn/dusk, both golden hours, day lengthget_vitamin_d_windowThe synthesis window for one day: minutes needed, best hour, UV peakget_vitamin_d_yearThe whole year in one call: which months work, which don'tget_current_statusWhether *right now* is a good moment, from live UV and cloud dataestimate_sun_sessionWhat a session produced — IU made, and minutes until burningPaste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
{
"mcpServers": {
"clinicaltrialsgov-mcp-server": {
"command": "bunx",
"args": [
"clinicaltrialsgov-mcp-server@latest"
]
}
}
}
{
"mcpServers": {
"javimaligno-vitamind-mcp": {
"command": "npx",
"args": [
"-y",
"vitamind-mcp"
],
"env": {
"VITAMIND_MCP_URL": "YOUR_VITAMIND_MCP_URL_HERE"
}
}
}
}