Clinicaltrialsgov MCP Server vs Doktor
A side-by-side look at the Clinicaltrialsgov MCP Server and Doktor 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 Doktor for biology & bioinformatics as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Clinicaltrialsgov MCP Server when
- You need dedicated capabilities in the Biology & Bioinformatics domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
clinicaltrials_search_studies, clinicaltrials_get_study_record, clinicaltrials_get_study_count.
Choose Doktor when
- You need dedicated capabilities in the Biology & Bioinformatics domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
DOKTOR_API_URL. - You want tools like
buscar_doctor, ver_perfil, especialidades_disponibles.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Biology & Bioinformatics | Biology & Bioinformatics |
| Quality signal | 63/100 · Good | 55/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | DOKTOR_API_URL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 99 | 0 |
| Directory activity | 3 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | 7 | 10 |
| Full listing | View Clinicaltrialsgov MCP Server | View Doktor |
Tools & capabilities
Clinicaltrialsgov MCP Server tools 7
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 criteria
Doktor tools 10
buscar_doctorSearch for doctors in Mexico by medical specialty, city, state, or name. Returns a list of matching doctors with their specialties, location, ratings, contact info, and profile links on doktor.mx.ver_perfilGet the full profile of a specific doctor by their URL slug. Returns biography, specialties, office locations with addresses and hours, consultation prices, accepted insurance, patient reviews, and whether they have an AI booking assistant on doktor.mx.especialidades_disponiblesList all available medical specialties in the doktor.mx directory with the number of registered doctors in each one.ciudades_disponiblesList cities in Mexico that have registered doctors on doktor.mx. Can be filtered by state.estados_disponiblesList states in Mexico that have registered doctors on doktor.mx, with the total number of doctors in each.verificar_cedulaVerify if a doctor has a valid professional license (cedula profesional) registered with the SEP (Mexico's education authority). Search by license number or doctor name.buscar_por_padecimientoGiven a medical condition or disease, find which specialists treat it and available doctors on doktor.mx. Returns recommended specialties, related health articles, and matching doctors.buscar_por_sintomaGiven a symptom, suggest possible conditions and specialists on doktor.mx. Always includes a medical disclaimer. Does NOT provide diagnoses.buscar_por_seguroSearch for doctors on doktor.mx who accept a specific health insurance plan. Can be filtered by specialty and city.buscar_articulo_saludSearch health articles on doktor.mx about medical conditions, treatments, symptoms, and prevention. Returns articles with title, summary, and link.
Ready-to-paste client configs
Paste 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.
Clinicaltrialsgov MCP Server
{
"mcpServers": {
"clinicaltrialsgov-mcp-server": {
"command": "npx",
"args": [
"-y",
"clinicaltrialsgov-mcp-server"
]
}
}
}
Doktor
{
"mcpServers": {
"doktor": {
"command": "npx",
"args": [
"-y",
"doktor-mcp-server"
],
"env": {
"DOKTOR_API_URL": "YOUR_DOKTOR_API_URL_HERE"
}
}
}
}
Frequently asked questions
Clinicaltrialsgov MCP Server is categorized under Biology & Bioinformatics and uses a local stdio subprocess. Doktor belongs to Biology & Bioinformatics and uses a local stdio subprocess. Pick Clinicaltrialsgov MCP Server for biology & bioinformatics work and Doktor for biology & bioinformatics.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Clinicaltrialsgov MCP Server is listed as free. Auth: no auth required. Doktor has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add clinicaltrialsgov-mcp-server and doktor as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Clinicaltrialsgov MCP Server has a quality signal of 63/100 (Good) with 3 views, 0 installs and 99 GitHub stars. Doktor has 55/100 (Good) with 2 views, 0 installs and 0 GitHub stars.