# Health & medicines (remote · fourzerotwo.si)

Clinical trials, RxNorm drug lookups, FDA drug and device data, PubMed and NHS organisations.

- Trust score: 79/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-25

## Components

- remote · `fourzerotwo.si`: 79/100 (this document), [markdown](https://verifymcp.io/servers/si-fourzerotwo-health/mcp-v-health.md), [page](https://verifymcp.io/servers/si-fourzerotwo-health/mcp-v-health)

## Channel facts

- Endpoint: `https://fourzerotwo.si/mcp/v/health`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-25.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 2230 tokens (~76/item across 29 items; 29 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 43/100
  - Stability observed for 13 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 29 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 30 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Health & medicines MCP server?

Health & medicines is a hosted endpoint at https://fourzerotwo.si/mcp/v/health, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http si-fourzerotwo-health 'https://fourzerotwo.si/mcp/v/health'
```

### Cursor

```json
{
  "mcpServers": {
    "si-fourzerotwo-health": {
      "url": "https://fourzerotwo.si/mcp/v/health"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "si-fourzerotwo-health": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/health"
    }
  }
}
```

### Codex

```toml
[mcp_servers.si-fourzerotwo-health]
url = "https://fourzerotwo.si/mcp/v/health"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "si-fourzerotwo-health": {
      "type": "remote",
      "url": "https://fourzerotwo.si/mcp/v/health",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add si-fourzerotwo-health --url 'https://fourzerotwo.si/mcp/v/health' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  si-fourzerotwo-health:
    url: "https://fourzerotwo.si/mcp/v/health"
```

### Netclaw

```json
{
  "McpServers": {
    "si-fourzerotwo-health": {
      "Transport": "http",
      "Url": "https://fourzerotwo.si/mcp/v/health"
    }
  }
}
```

### Vellum

```bash
assistant mcp add si-fourzerotwo-health -t streamable-http -u 'https://fourzerotwo.si/mcp/v/health'
```

### Other

```json
{
  "mcpServers": {
    "si-fourzerotwo-health": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/health"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-25 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-19 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-17 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-14 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-13 (score 73, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-12 (score 73)

First indexed and scored.

## MCP tools (29)

### `clinical-trials__search` (~215 tokens)

Clinical Trials (ClinicalTrials.gov): Search clinical trials

Find studies by condition, intervention (drug/device), location, sponsor or free text, optionally filtered by status and phase. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `condition` (string): Condition or disease, e.g. "type 2 diabetes"
- `intervention` (string): Drug, device or procedure
- `limit` (integer): Results per page, 1-50 (default 20)
- `location` (string): City, region or country
- `page_token` (string): next_page_token from a previous response
- `phase` (string): 1, 2, 3, 4, EARLY_PHASE1 or NA
- `q` (string): Free-text search across the record
- `sponsor` (string): Sponsor or collaborator
- `status` (string): Comma-separated: RECRUITING, NOT_YET_RECRUITING, ACTIVE_NOT_RECRUITING, COMPLETED, TERMINATED…

### `clinical-trials__study` (~75 tokens)

Clinical Trials (ClinicalTrials.gov): Study by NCT number

One study: title, status, phase, conditions, interventions, sponsor, enrolment, dates, eligibility basics, primary outcomes, countries, whether results are posted. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `nct_id` (string, required): NCT number

### `clinical-trials__recruiting` (~112 tokens)

Clinical Trials (ClinicalTrials.gov): Recruiting trials near a place

Studies recruiting (or about to) for a condition in a city, region or country, with the matching trial sites. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `condition` (string, required): Condition or disease
- `limit` (integer): Results per page, 1-50 (default 20)
- `location` (string, required): City, region or country
- `page_token` (string): next_page_token from a previous response

### `clinical-trials__stats` (~59 tokens)

Clinical Trials (ClinicalTrials.gov): Trial counts by status

How many registered studies for a condition are recruiting, active, completed, terminated or withdrawn. A few free samples a day, then $0.003 USDC per call via x402.

Input parameters:

- `condition` (string, required): Condition or disease

### `nhs-organisations__organisation` (~84 tokens)

NHS Organisations (ODS): Organisation by ODS code

Name, status, address, phone/website, roles and relationships (commissioner, operator, geography) for one ODS code. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `code` (string, required): ODS code, e.g. RVV (trust) or G82052 (GP practice)

### `nhs-organisations__search` (~159 tokens)

NHS Organisations (ODS): Search organisations

Find NHS organisations by name, postcode (or district) and role: gp, pharmacy, trust, trust-site, icb, dental, optical, care-home, hospice, or a role code. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 20, max 100)
- `name` (string): Name contains
- `postcode` (string): Postcode or district, e.g. CT9
- `role` (string): gp | pharmacy | trust | trust-site | icb | dental | optical | care-home | hospice | RO code
- `status` (string): active (default) | inactive | any

### `nhs-organisations__roles` (~48 tokens)

NHS Organisations (ODS): Role codes

Every ODS role code with its name, and the friendly aliases search accepts. Free within the daily allowance, then $0.0005 USDC per call via x402.

### `pubmed__search` (~51 tokens)

PubMed: Search PubMed

PubMed ids matching a query (supports PubMed query syntax). A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `term` (string, required): Query

### `pubmed__summary` (~58 tokens)

PubMed: Article summaries

Title, authors, journal, date and DOI for comma-separated PubMed ids. A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `id` (string, required): PMIDs, comma separated

### `pubmed__pmc-search` (~50 tokens)

PubMed: Search PubMed Central

Free full-text article ids in PubMed Central. A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `term` (string, required): Query

### `pubmed__clinical-trials-search` (~58 tokens)

PubMed: Search clinical trial records

PubMed citations that are clinical trial reports for a query. A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `term` (string, required): Query with [pt] filter

### `rxnorm__rxcui` (~62 tokens)

RxNorm Drug Names: Drug name to RxCUI

Exact (normalised) match of a drug name to its RxNorm concept id(s). Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `name` (string, required): Drug name (ingredient or brand)

### `rxnorm__approximate` (~71 tokens)

RxNorm Drug Names: Approximate drug match

Ranked RxNorm candidates for a misspelled or partial drug name. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `limit` (integer): Max candidates (1-20)
- `term` (string, required): Drug name, possibly misspelled

### `rxnorm__spelling` (~53 tokens)

RxNorm Drug Names: Spelling suggestions

Correctly spelled RxNorm drug names close to the input. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `name` (string, required): Drug name as typed

### `rxnorm__drugs` (~65 tokens)

RxNorm Drug Names: Clinical & branded drugs

Every clinical drug, branded drug and pack for an ingredient or brand name, grouped by RxNorm term type. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `name` (string, required): Drug name (ingredient or brand)

### `rxnorm__related` (~65 tokens)

RxNorm Drug Names: Related concepts

Ingredients, brand names, dose forms and clinical/branded drugs related to an RxCUI. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `rxcui` (string, required): RxNorm concept id (RxCUI)

### `rxnorm__properties` (~63 tokens)

RxNorm Drug Names: Concept properties

Name, synonym, term type and active/obsolete status of an RxCUI. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `rxcui` (string, required): RxNorm concept id (RxCUI)

### `rxnorm__ndc` (~64 tokens)

RxNorm Drug Names: NDC to RxCUI

National Drug Code (10 or 11 digits) to its RxNorm concept and status. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `ndc` (string, required): NDC with or without hyphens

### `rxnorm__ndcs` (~61 tokens)

RxNorm Drug Names: NDCs for an RxCUI

Active National Drug Codes for an RxNorm clinical or branded drug. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `rxcui` (string, required): RxCUI of a clinical/branded drug

### `openfda__drug-adverse-events` (~70 tokens)

openFDA: Drug adverse events

FAERS adverse event reports for a drug. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__drug-recalls` (~65 tokens)

openFDA: Drug recalls

Drug recall enforcement reports. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__drug-ndc` (~67 tokens)

openFDA: NDC directory

National Drug Code directory entries. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__drugs-fda` (~76 tokens)

openFDA: Drug approvals

FDA approval history (Drugs@FDA) for an application or brand. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__device-events` (~68 tokens)

openFDA: Device adverse events

MAUDE medical device adverse event reports. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__device-recalls` (~64 tokens)

openFDA: Device recalls

Medical device recalls. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__device-510k` (~70 tokens)

openFDA: Device 510(k) clearances

Premarket 510(k) clearances. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__food-recalls` (~65 tokens)

openFDA: Food recalls

Food recall enforcement reports. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__food-adverse-events` (~71 tokens)

openFDA: Food & supplement adverse events

CAERS reports for foods, supplements and cosmetics. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

### `openfda__drug-labels` (~72 tokens)

openFDA: Drug labels

Structured prescribing information: indications, dosage, warnings, interactions. Free within the daily allowance, then $0.003 USDC per call via x402.

Input parameters:

- `limit` (integer): Max results (default 10, max 100)
- `search` (string, required): openFDA search expression

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/si-fourzerotwo-health/mcp-v-health#diagnostics

## Score history

- 2026-10-25: 79
- 2026-10-24: 78
- 2026-10-23: 78
- 2026-10-22: 77
- 2026-10-21: 77
- 2026-10-20: 76
- 2026-10-19: 76
- 2026-10-18: 75
- 2026-10-17: 75
- 2026-10-16: 74
- 2026-10-15: 74
- 2026-10-14: 74
- 2026-10-13: 73
- 2026-10-12: 73

## Common questions

### What is the Health & medicines MCP server?

Health & medicines is an MCP server listed in the public MCP registry as si.fourzerotwo/health. Clinical trials, RxNorm drug lookups, FDA drug and device data, PubMed and NHS organisations. This page covers its hosted endpoint (https://fourzerotwo.si/mcp/v/health).

### Is the Health & medicines MCP server safe to use?

Health & medicines scores 79 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Health & medicines MCP server expose?

Health & medicines exposes 29 tools: clinical-trials__search, clinical-trials__study, clinical-trials__recruiting, clinical-trials__stats, nhs-organisations__organisation, and 24 more. Their descriptions and schemas cost roughly 2,161 tokens of context every time the server is loaded.

### Does the Health & medicines MCP server require authentication?

No. We connected to Health & medicines without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Health & medicines MCP server still maintained?

Health & medicines is still listed as active in the MCP registry. We last reached this channel on 25 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://fourzerotwo.si/mcp/v/health
- Website: https://fourzerotwo.si/
- Changelog RSS feed: https://verifymcp.io/servers/si-fourzerotwo-health/mcp-v-health.xml
- Changelog JSON feed: https://verifymcp.io/servers/si-fourzerotwo-health/mcp-v-health.json
- HTML version of this page: https://verifymcp.io/servers/si-fourzerotwo-health/mcp-v-health