Health & medicines
REMOTE · FOURZEROTWO.SI
Clinical trials, RxNorm drug lookups, FDA drug and device data, PubMed and NHS organisations.
Available components
Last scanned (4 hours ago)
Scores higher than 82% of remote servers
Reachable. Last reached 25 Oct 2026.
Category Health and Science
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability70
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 2230 tokens (~76/item across 29 items; 29 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management43
- Stability observed for 13 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 29 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 30 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 25 Oct 26 +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.
- 23 Oct 26 +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.
- 21 Oct 26 +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.
- 19 Oct 26 +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.
- 17 Oct 26 +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.
- 14 Oct 26 +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.
- 13 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 12 Oct 26 73
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 25 Oct 2026 · Probed https://fourzerotwo.si/mcp/v/health
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=fourzerotwo.si | CN=WE1,O=Google Trust Services,C=US | 10 Oct 2026 | 8 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | 7083f50b7ee269bb0ef93ba441295bdf |
| SANs: fourzerotwo.si | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of fourzerotwo.si. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| si. | present | 42378 | 13 | Verified |
| fourzerotwo.si. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
| x-frame-options | deny |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://fourzerotwo.si/mcp/v/health | Verified | 200 | |
| http (plaintext) | http://fourzerotwo.si/mcp/v/health | HTTPS enforced | 301 | https://fourzerotwo.si/mcp/v/health |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
clinical-trials__recruiting Clinical Trials (ClinicalTrials.gov): Recruiting trials near a place ~112
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.
| Name | Type | Req | Description |
|---|---|---|---|
| condition | string | yes | Condition or disease |
| limit | integer | – | Results per page, 1-50 (default 20) |
| location | string | yes | City, region or country |
| page_token | string | – | next_page_token from a previous response |
Structured output declared, but exposes no named fields.
No examples provided.
clinical-trials__search Clinical Trials (ClinicalTrials.gov): Search clinical trials ~215
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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… |
Structured output declared, but exposes no named fields.
No examples provided.
clinical-trials__stats Clinical Trials (ClinicalTrials.gov): Trial counts by status ~59
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.
| Name | Type | Req | Description |
|---|---|---|---|
| condition | string | yes | Condition or disease |
Structured output declared, but exposes no named fields.
No examples provided.
clinical-trials__study Clinical Trials (ClinicalTrials.gov): Study by NCT number ~75
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.
| Name | Type | Req | Description |
|---|---|---|---|
| nct_id | string | yes | NCT number |
Structured output declared, but exposes no named fields.
No examples provided.
nhs-organisations__organisation NHS Organisations (ODS): Organisation by ODS code ~84
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.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | ODS code, e.g. RVV (trust) or G82052 (GP practice) |
Structured output declared, but exposes no named fields.
No examples provided.
nhs-organisations__roles NHS Organisations (ODS): Role codes ~48
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.
Input schema present but exposes no named parameters.
Structured output declared, but exposes no named fields.
No examples provided.
nhs-organisations__search NHS Organisations (ODS): Search organisations ~159
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__device-510k openFDA: Device 510(k) clearances ~70
Premarket 510(k) clearances. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__device-events openFDA: Device adverse events ~68
MAUDE medical device adverse event reports. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__device-recalls openFDA: Device recalls ~64
Medical device recalls. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__drug-adverse-events openFDA: Drug adverse events ~70
FAERS adverse event reports for a drug. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__drug-labels openFDA: Drug labels ~72
Structured prescribing information: indications, dosage, warnings, interactions. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__drug-ndc openFDA: NDC directory ~67
National Drug Code directory entries. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__drug-recalls openFDA: Drug recalls ~65
Drug recall enforcement reports. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__drugs-fda openFDA: Drug approvals ~76
FDA approval history (Drugs@FDA) for an application or brand. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__food-adverse-events openFDA: Food & supplement adverse events ~71
CAERS reports for foods, supplements and cosmetics. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
openfda__food-recalls openFDA: Food recalls ~65
Food recall enforcement reports. Free within the daily allowance, then $0.003 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 100) |
| search | string | yes | openFDA search expression |
Structured output declared, but exposes no named fields.
No examples provided.
pubmed__clinical-trials-search PubMed: Search clinical trial records ~58
PubMed citations that are clinical trial reports for a query. A few free samples a day, then $0.002 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| term | string | yes | Query with [pt] filter |
Structured output declared, but exposes no named fields.
No examples provided.
pubmed__pmc-search PubMed: Search PubMed Central ~50
Free full-text article ids in PubMed Central. A few free samples a day, then $0.002 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| term | string | yes | Query |
Structured output declared, but exposes no named fields.
No examples provided.
pubmed__search PubMed: Search PubMed ~51
PubMed ids matching a query (supports PubMed query syntax). A few free samples a day, then $0.002 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| term | string | yes | Query |
Structured output declared, but exposes no named fields.
No examples provided.
pubmed__summary PubMed: Article summaries ~58
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.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | PMIDs, comma separated |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__approximate RxNorm Drug Names: Approximate drug match ~71
Ranked RxNorm candidates for a misspelled or partial drug name. Free within the daily allowance, then $0.002 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max candidates (1-20) |
| term | string | yes | Drug name, possibly misspelled |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__drugs RxNorm Drug Names: Clinical & branded drugs ~65
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.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Drug name (ingredient or brand) |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__ndc RxNorm Drug Names: NDC to RxCUI ~64
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.
| Name | Type | Req | Description |
|---|---|---|---|
| ndc | string | yes | NDC with or without hyphens |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__ndcs RxNorm Drug Names: NDCs for an RxCUI ~61
Active National Drug Codes for an RxNorm clinical or branded drug. Free within the daily allowance, then $0.001 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| rxcui | string | yes | RxCUI of a clinical/branded drug |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__properties RxNorm Drug Names: Concept properties ~63
Name, synonym, term type and active/obsolete status of an RxCUI. Free within the daily allowance, then $0.001 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| rxcui | string | yes | RxNorm concept id (RxCUI) |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__related RxNorm Drug Names: Related concepts ~65
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.
| Name | Type | Req | Description |
|---|---|---|---|
| rxcui | string | yes | RxNorm concept id (RxCUI) |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__rxcui RxNorm Drug Names: Drug name to RxCUI ~62
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.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Drug name (ingredient or brand) |
Structured output declared, but exposes no named fields.
No examples provided.
rxnorm__spelling RxNorm Drug Names: Spelling suggestions ~53
Correctly spelled RxNorm drug names close to the input. Free within the daily allowance, then $0.001 USDC per call via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Drug name as typed |
Structured output declared, but exposes no named fields.
No examples provided.
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.
remote · fourzerotwo.si
claude mcp add --transport http si-fourzerotwo-health 'https://fourzerotwo.si/mcp/v/health'
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.