ClinicalTrials.gov API — Metadata

ClinicalTrials.gov API — Metadata. 2 operations. Lead operation: Get Dataset Size. Self-contained Naftiko capability covering one United States National Library Of Medicine business surface.

Run with Naftiko United States National Library Of MedicineMetadata

What You Can Do

GET
Getdatasetsize — Get Dataset Size
/v1/stats/size
GET
Getstudyfieldsmetadata — Get Study Fields Metadata
/v1/studies/metadata

MCP Tools

get-dataset-size

Get Dataset Size

read-only idempotent
get-study-fields-metadata

Get Study Fields Metadata

read-only idempotent

Capability Spec

nlm-clinicaltrials-metadata.yaml Raw ↑
naftiko: 1.0.0-alpha2
info:
  label: ClinicalTrials.gov API — Metadata
  description: 'ClinicalTrials.gov API — Metadata. 2 operations. Lead operation: Get Dataset Size. Self-contained Naftiko
    capability covering one United States National Library Of Medicine business surface.'
  tags:
  - United States National Library Of Medicine
  - Metadata
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    UNITED_STATES_NATIONAL_LIBRARY_OF_MEDICINE_API_KEY: UNITED_STATES_NATIONAL_LIBRARY_OF_MEDICINE_API_KEY
capability:
  consumes:
  - type: http
    namespace: nlm-clinicaltrials-metadata
    baseUri: https://clinicaltrials.gov/api/v2
    description: ClinicalTrials.gov API — Metadata business capability. Self-contained, no shared references.
    resources:
    - name: stats-size
      path: /stats/size
      operations:
      - name: getdatasetsize
        method: GET
        description: Get Dataset Size
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: query.cond
          in: query
          type: string
        - name: filter.overallStatus
          in: query
          type: string
    - name: studies-metadata
      path: /studies/metadata
      operations:
      - name: getstudyfieldsmetadata
        method: GET
        description: Get Study Fields Metadata
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
  exposes:
  - type: rest
    namespace: nlm-clinicaltrials-metadata-rest
    port: 8080
    description: REST adapter for ClinicalTrials.gov API — Metadata. One Spectral-compliant resource per consumed operation,
      prefixed with /v1.
    resources:
    - path: /v1/stats/size
      name: stats-size
      description: REST surface for stats-size.
      operations:
      - method: GET
        name: getdatasetsize
        description: Get Dataset Size
        call: nlm-clinicaltrials-metadata.getdatasetsize
        with:
          query.cond: rest.query.cond
          filter.overallStatus: rest.filter.overallStatus
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/studies/metadata
      name: studies-metadata
      description: REST surface for studies-metadata.
      operations:
      - method: GET
        name: getstudyfieldsmetadata
        description: Get Study Fields Metadata
        call: nlm-clinicaltrials-metadata.getstudyfieldsmetadata
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: nlm-clinicaltrials-metadata-mcp
    port: 9090
    transport: http
    description: MCP adapter for ClinicalTrials.gov API — Metadata. One tool per consumed operation, routed inline through
      this capability's consumes block.
    tools:
    - name: get-dataset-size
      description: Get Dataset Size
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: nlm-clinicaltrials-metadata.getdatasetsize
      with:
        query.cond: tools.query.cond
        filter.overallStatus: tools.filter.overallStatus
      outputParameters:
      - type: object
        mapping: $.
    - name: get-study-fields-metadata
      description: Get Study Fields Metadata
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: nlm-clinicaltrials-metadata.getstudyfieldsmetadata
      outputParameters:
      - type: object
        mapping: $.