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Health & medicines

R0· no sign-in

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

v1.0.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality91strong
Trust82of 100
Uptime, 30 days97%
Latency p50546 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "health": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/health",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
claude mcp add --transport http health https://fourzerotwo.si/mcp/v/health --header "X-API-Key: ${X_API_KEY}"
[mcp_servers.health]
url = "https://fourzerotwo.si/mcp/v/health"
env_http_headers = { "X-API-Key" = "X_API_KEY" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "health": {
      "type": "remote",
      "url": "https://fourzerotwo.si/mcp/v/health",
      "enabled": true,
      "headers": {
        "X-API-Key": "{env:X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "health": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/health",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=health&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZm91cnplcm90d28uc2kvbWNwL3YvaGVhbHRoIiwiaGVhZGVycyI6eyJYLUFQSS1LZXkiOiIke1hfQVBJX0tFWX0ifX0%3D"
}
{
  "servers": {
    "health": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/health",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "health": {
      "httpUrl": "https://fourzerotwo.si/mcp/v/health",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
extensions:
  "health":
    enabled: true
    name: "health"
    type: streamable_http
    uri: "https://fourzerotwo.si/mcp/v/health"
    headers:
      "X-API-Key": "${X_API_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${X_API_KEY}. The registry never accepts secret values.

Quality 91 / 100strong

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations29 of 29 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 3,509 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

29 tools, about 3,509 tokens to load them all · tool set a53febf6c53d · checked 2026-10-19 10:52 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository
provenance55
liveness99
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-97% +updated-8d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://fourzerotwo.si/mcp/v/health streamable-httpnoneyes97%546 ms2025-11-252026-10-19

Tools (29)

clinical-trials__recruitingread-onlyStudies 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.
clinical-trials__searchread-onlyFind 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.
clinical-trials__statsread-onlyHow 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.
clinical-trials__studyread-onlyOne 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.
nhs-organisations__organisationread-onlyName, 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.
nhs-organisations__rolesread-onlyEvery 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.
nhs-organisations__searchread-onlyFind 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.
openfda__device-510kread-onlyPremarket 510(k) clearances. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__device-eventsread-onlyMAUDE medical device adverse event reports. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__device-recallsread-onlyMedical device recalls. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__drug-adverse-eventsread-onlyFAERS adverse event reports for a drug. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__drug-labelsread-onlyStructured prescribing information: indications, dosage, warnings, interactions. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__drug-ndcread-onlyNational Drug Code directory entries. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__drug-recallsread-onlyDrug recall enforcement reports. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__drugs-fdaread-onlyFDA approval history (Drugs@FDA) for an application or brand. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__food-adverse-eventsread-onlyCAERS reports for foods, supplements and cosmetics. Free within the daily allowance, then $0.003 USDC per call via x402.
openfda__food-recallsread-onlyFood recall enforcement reports. Free within the daily allowance, then $0.003 USDC per call via x402.
pubmed__clinical-trials-searchread-onlyPubMed citations that are clinical trial reports for a query. A few free samples a day, then $0.002 USDC per call via x402.
pubmed__pmc-searchread-onlyFree full-text article ids in PubMed Central. A few free samples a day, then $0.002 USDC per call via x402.
pubmed__searchread-onlyPubMed ids matching a query (supports PubMed query syntax). A few free samples a day, then $0.002 USDC per call via x402.
pubmed__summaryread-onlyTitle, authors, journal, date and DOI for comma-separated PubMed ids. A few free samples a day, then $0.002 USDC per call via x402.
rxnorm__approximateread-onlyRanked RxNorm candidates for a misspelled or partial drug name. Free within the daily allowance, then $0.002 USDC per call via x402.
rxnorm__drugsread-onlyEvery 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.
rxnorm__ndcread-onlyNational 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.
rxnorm__ndcsread-onlyActive National Drug Codes for an RxNorm clinical or branded drug. Free within the daily allowance, then $0.001 USDC per call via x402.
rxnorm__propertiesread-onlyName, synonym, term type and active/obsolete status of an RxCUI. Free within the daily allowance, then $0.001 USDC per call via x402.
rxnorm__relatedread-onlyIngredients, 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.
rxnorm__rxcuiread-onlyExact (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.
rxnorm__spellingread-onlyCorrectly spelled RxNorm drug names close to the input. Free within the daily allowance, then $0.001 USDC per call via x402.

Schemas: list_tools.

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Official server.json
{
  "name": "si.fourzerotwo/health",
  "title": "Health & medicines",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://fourzerotwo.si/mcp/v/health",
      "type": "streamable-http",
      "headers": [
        {
          "name": "X-API-Key",
          "isSecret": true,
          "description": "Optional free key from https://fourzerotwo.si/free (raises the free allowance from 100 to 500 calls/day)"
        }
      ]
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://fourzerotwo.si",
  "description": "Clinical trials, RxNorm drug lookups, FDA drug and device data, PubMed and NHS organisations."
}