Helm Chart Repository API

naftiko: 1.0.0-alpha2
info:
  label: Helm Chart Repository API
  description: The Helm Chart Repository API defines the HTTP endpoints used by Helm clients to discover and download charts
    from a repository server. A chart repository is an HTTP server that houses an index.yaml file listing all available charts
    and optionally packaged chart archives (.tgz files). ChartMuseum and compatible implementations extend this with a JSON-based
    management API for listing, uploading, and deleting charts programmatically.
  tags:
  - Helm
  - API
  created: '2026-05-06'
  modified: '2026-05-06'
capability:
  consumes:
  - type: http
    namespace: helm
    baseUri: https://charts.example.com
    description: Helm Chart Repository API HTTP API.
    resources:
    - name: index-yaml
      path: /index.yaml
      operations:
      - name: getrepositoryindex
        method: GET
        description: Helm Get repository index
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: charts-chartname-version-tgz
      path: /charts/{chartName}-{version}.tgz
      operations:
      - name: downloadchartpackage
        method: GET
        description: Helm Download chart package
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: charts-chartname-version-tgz-prov
      path: /charts/{chartName}-{version}.tgz.prov
      operations:
      - name: downloadchartprovenance
        method: GET
        description: Helm Download chart provenance file
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: api-charts
      path: /api/charts
      operations:
      - name: listallcharts
        method: GET
        description: Helm List all charts
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: uploadchart
        method: POST
        description: Helm Upload chart package
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: api-charts-chartname
      path: /api/charts/{chartName}
      operations:
      - name: getchartversions
        method: GET
        description: Helm Get chart versions
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: api-charts-chartname-version
      path: /api/charts/{chartName}/{version}
      operations:
      - name: getchartversion
        method: GET
        description: Helm Get specific chart version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: deletechartversion
        method: DELETE
        description: Helm Delete chart version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: api-prov
      path: /api/prov
      operations:
      - name: uploadprovenance
        method: POST
        description: Helm Upload provenance file
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: health
      path: /health
      operations:
      - name: gethealth
        method: GET
        description: Helm Get repository health
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
  exposes:
  - type: rest
    port: 8080
    namespace: helm-rest
    description: REST adapter for Helm Chart Repository API.
    resources:
    - path: /index.yaml
      name: getrepositoryindex
      operations:
      - method: GET
        name: getrepositoryindex
        description: Helm Get repository index
        call: helm.getrepositoryindex
        outputParameters:
        - type: object
          mapping: $.
    - path: /charts/{chartName}-{version}.tgz
      name: downloadchartpackage
      operations:
      - method: GET
        name: downloadchartpackage
        description: Helm Download chart package
        call: helm.downloadchartpackage
        outputParameters:
        - type: object
          mapping: $.
    - path: /charts/{chartName}-{version}.tgz.prov
      name: downloadchartprovenance
      operations:
      - method: GET
        name: downloadchartprovenance
        description: Helm Download chart provenance file
        call: helm.downloadchartprovenance
        outputParameters:
        - type: object
          mapping: $.
    - path: /api/charts
      name: listallcharts
      operations:
      - method: GET
        name: listallcharts
        description: Helm List all charts
        call: helm.listallcharts
        outputParameters:
        - type: object
          mapping: $.
    - path: /api/charts
      name: uploadchart
      operations:
      - method: POST
        name: uploadchart
        description: Helm Upload chart package
        call: helm.uploadchart
        outputParameters:
        - type: object
          mapping: $.
    - path: /api/charts/{chartName}
      name: getchartversions
      operations:
      - method: GET
        name: getchartversions
        description: Helm Get chart versions
        call: helm.getchartversions
        outputParameters:
        - type: object
          mapping: $.
    - path: /api/charts/{chartName}/{version}
      name: getchartversion
      operations:
      - method: GET
        name: getchartversion
        description: Helm Get specific chart version
        call: helm.getchartversion
        outputParameters:
        - type: object
          mapping: $.
    - path: /api/charts/{chartName}/{version}
      name: deletechartversion
      operations:
      - method: DELETE
        name: deletechartversion
        description: Helm Delete chart version
        call: helm.deletechartversion
        outputParameters:
        - type: object
          mapping: $.
    - path: /api/prov
      name: uploadprovenance
      operations:
      - method: POST
        name: uploadprovenance
        description: Helm Upload provenance file
        call: helm.uploadprovenance
        outputParameters:
        - type: object
          mapping: $.
    - path: /health
      name: gethealth
      operations:
      - method: GET
        name: gethealth
        description: Helm Get repository health
        call: helm.gethealth
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    port: 9090
    namespace: helm-mcp
    transport: http
    description: MCP adapter for Helm Chart Repository API for AI agent use.
    tools:
    - name: getrepositoryindex
      description: Helm Get repository index
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: helm.getrepositoryindex
      outputParameters:
      - type: object
        mapping: $.
    - name: downloadchartpackage
      description: Helm Download chart package
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: helm.downloadchartpackage
      outputParameters:
      - type: object
        mapping: $.
    - name: downloadchartprovenance
      description: Helm Download chart provenance file
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: helm.downloadchartprovenance
      outputParameters:
      - type: object
        mapping: $.
    - name: listallcharts
      description: Helm List all charts
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: helm.listallcharts
      outputParameters:
      - type: object
        mapping: $.
    - name: uploadchart
      description: Helm Upload chart package
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: helm.uploadchart
      outputParameters:
      - type: object
        mapping: $.
    - name: getchartversions
      description: Helm Get chart versions
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: helm.getchartversions
      outputParameters:
      - type: object
        mapping: $.
    - name: getchartversion
      description: Helm Get specific chart version
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: helm.getchartversion
      outputParameters:
      - type: object
        mapping: $.
    - name: deletechartversion
      description: Helm Delete chart version
      hints:
        readOnly: false
        destructive: true
        idempotent: true
      call: helm.deletechartversion
      outputParameters:
      - type: object
        mapping: $.
    - name: uploadprovenance
      description: Helm Upload provenance file
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: helm.uploadprovenance
      outputParameters:
      - type: object
        mapping: $.
    - name: gethealth
      description: Helm Get repository health
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: helm.gethealth
      outputParameters:
      - type: object
        mapping: $.