Prefect Cloud API — Assets

naftiko: 1.0.0-alpha2
info:
  label: Prefect Cloud API — Assets
  description: 'Prefect Cloud API — Assets. 12 operations. Lead operation: List Assets. Self-contained Naftiko capability
    covering one Prefect business surface.'
  tags:
  - Prefect
  - Assets
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    PREFECT_API_KEY: PREFECT_API_KEY
capability:
  consumes:
  - type: http
    namespace: prefect-assets
    baseUri: ''
    description: Prefect Cloud API — Assets business capability. Self-contained, no shared references.
    resources:
    - name: api-accounts-account_id-workspaces-workspace_id-assets
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/
      operations:
      - name: listassetsapiaccountsaccountidworkspacesworkspaceidassetsget
        method: GET
        description: List Assets
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: prefix
          in: query
          type: string
          description: Prefix to search assets keys for
        - name: search
          in: query
          type: string
          description: Substring to search assets keys for
    - name: api-accounts-account_id-workspaces-workspace_id-assets-filter
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/filter
      operations:
      - name: filterassetsapiaccountsaccountidworkspacesworkspaceidassetsfilterpost
        method: POST
        description: Filter Assets
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: false
    - name: api-accounts-account_id-workspaces-workspace_id-assets-filter-next
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/filter/next
      operations:
      - name: filterassetspageapiaccountsaccountidworkspacesworkspaceidassetsfilternextget
        method: GET
        description: Filter Assets Page
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: page-token
          in: query
          type: string
          required: true
    - name: api-accounts-account_id-workspaces-workspace_id-assets-key
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/key
      operations:
      - name: readassetapiaccountsaccountidworkspacesworkspaceidassetskeyget
        method: GET
        description: Read Asset
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: key
          in: query
          type: string
          required: true
      - name: deleteassetapiaccountsaccountidworkspacesworkspaceidassetskeydelete
        method: DELETE
        description: Delete Asset
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: key
          in: query
          type: string
          required: true
    - name: api-accounts-account_id-workspaces-workspace_id-assets-latest-dependencies
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/latest-dependencies
      operations:
      - name: latestdependenciesapiaccountsaccountidworkspacesworkspaceidassetslatestdependenciesget
        method: GET
        description: Latest Dependencies
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
    - name: api-accounts-account_id-workspaces-workspace_id-assets-materializations
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/materializations
      operations:
      - name: listassetmaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationsget
        method: GET
        description: List Asset Materializations
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: key
          in: query
          type: string
          description: The asset key to get materializations for
          required: true
        - name: since
          in: query
          type: string
          description: Only return materializations on or after this timestamp
        - name: until
          in: query
          type: string
          description: Only return materializations on or before this timestamp
        - name: sort
          in: query
          type: string
          description: 'Sort order: ''asc'' or ''desc'''
    - name: api-accounts-account_id-workspaces-workspace_id-assets-materializations-event_id
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/materializations/{event_id}
      operations:
      - name: readassetmaterializationapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidget
        method: GET
        description: Read Asset Materialization
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: event_id
          in: path
          type: string
          description: The event ID of the materialization
          required: true
        - name: key
          in: query
          type: string
          description: The asset key for validation
          required: true
    - name: api-accounts-account_id-workspaces-workspace_id-assets-materializations-event_id
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/materializations/{event_id}/upstream
      operations:
      - name: getupstreammaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidupstreamget
        method: GET
        description: Get Upstream Materializations
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: event_id
          in: path
          type: string
          description: The event ID of the focal materialization
          required: true
        - name: key
          in: query
          type: string
          description: The asset key of the focal materialization
          required: true
    - name: api-accounts-account_id-workspaces-workspace_id-assets-neighbors
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/neighbors
      operations:
      - name: getassetneighborsapiaccountsaccountidworkspacesworkspaceidassetsneighborsget
        method: GET
        description: Get Asset Neighbors
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: key
          in: query
          type: string
          description: The asset key to get neighbors for
          required: true
    - name: api-accounts-account_id-workspaces-workspace_id-assets-references
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/references
      operations:
      - name: listassetreferencesapiaccountsaccountidworkspacesworkspaceidassetsreferencesget
        method: GET
        description: List Asset References
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: key
          in: query
          type: string
          description: The asset key to get references for
          required: true
        - name: since
          in: query
          type: string
          description: Only return references on or after this timestamp
        - name: until
          in: query
          type: string
          description: Only return references on or before this timestamp
        - name: sort
          in: query
          type: string
          description: 'Sort order: ''asc'' or ''desc'''
    - name: api-accounts-account_id-workspaces-workspace_id-assets-references-event_id
      path: /api/accounts/{account_id}/workspaces/{workspace_id}/assets/references/{event_id}
      operations:
      - name: readassetreferenceapiaccountsaccountidworkspacesworkspaceidassetsreferenceseventidget
        method: GET
        description: Read Asset Reference
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_id
          in: path
          type: string
          required: true
        - name: workspace_id
          in: path
          type: string
          required: true
        - name: event_id
          in: path
          type: string
          description: The event ID of the downstream consumer
          required: true
        - name: key
          in: query
          type: string
          description: The upstream asset key being referenced
          required: true
  exposes:
  - type: rest
    namespace: prefect-assets-rest
    port: 8080
    description: REST adapter for Prefect Cloud API — Assets. One Spectral-compliant resource per consumed operation, prefixed
      with /v1.
    resources:
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets
      name: api-accounts-account-id-workspaces-workspace-id-assets
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets.
      operations:
      - method: GET
        name: listassetsapiaccountsaccountidworkspacesworkspaceidassetsget
        description: List Assets
        call: prefect-assets.listassetsapiaccountsaccountidworkspacesworkspaceidassetsget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          prefix: rest.prefix
          search: rest.search
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/filter
      name: api-accounts-account-id-workspaces-workspace-id-assets-filter
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-filter.
      operations:
      - method: POST
        name: filterassetsapiaccountsaccountidworkspacesworkspaceidassetsfilterpost
        description: Filter Assets
        call: prefect-assets.filterassetsapiaccountsaccountidworkspacesworkspaceidassetsfilterpost
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/filter/next
      name: api-accounts-account-id-workspaces-workspace-id-assets-filter-next
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-filter-next.
      operations:
      - method: GET
        name: filterassetspageapiaccountsaccountidworkspacesworkspaceidassetsfilternextget
        description: Filter Assets Page
        call: prefect-assets.filterassetspageapiaccountsaccountidworkspacesworkspaceidassetsfilternextget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          page-token: rest.page-token
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/key
      name: api-accounts-account-id-workspaces-workspace-id-assets-key
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-key.
      operations:
      - method: GET
        name: readassetapiaccountsaccountidworkspacesworkspaceidassetskeyget
        description: Read Asset
        call: prefect-assets.readassetapiaccountsaccountidworkspacesworkspaceidassetskeyget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          key: rest.key
        outputParameters:
        - type: object
          mapping: $.
      - method: DELETE
        name: deleteassetapiaccountsaccountidworkspacesworkspaceidassetskeydelete
        description: Delete Asset
        call: prefect-assets.deleteassetapiaccountsaccountidworkspacesworkspaceidassetskeydelete
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          key: rest.key
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/latest-dependencies
      name: api-accounts-account-id-workspaces-workspace-id-assets-latest-dependencies
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-latest-dependencies.
      operations:
      - method: GET
        name: latestdependenciesapiaccountsaccountidworkspacesworkspaceidassetslatestdependenciesget
        description: Latest Dependencies
        call: prefect-assets.latestdependenciesapiaccountsaccountidworkspacesworkspaceidassetslatestdependenciesget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/materializations
      name: api-accounts-account-id-workspaces-workspace-id-assets-materializations
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-materializations.
      operations:
      - method: GET
        name: listassetmaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationsget
        description: List Asset Materializations
        call: prefect-assets.listassetmaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationsget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          key: rest.key
          since: rest.since
          until: rest.until
          sort: rest.sort
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/materializations/{event-id}
      name: api-accounts-account-id-workspaces-workspace-id-assets-materializations-event-id
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-materializations-event_id.
      operations:
      - method: GET
        name: readassetmaterializationapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidget
        description: Read Asset Materialization
        call: prefect-assets.readassetmaterializationapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          event_id: rest.event_id
          key: rest.key
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/materializations/{event-id}/upstream
      name: api-accounts-account-id-workspaces-workspace-id-assets-materializations-event-id
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-materializations-event_id.
      operations:
      - method: GET
        name: getupstreammaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidupstreamget
        description: Get Upstream Materializations
        call: prefect-assets.getupstreammaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidupstreamget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          event_id: rest.event_id
          key: rest.key
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/neighbors
      name: api-accounts-account-id-workspaces-workspace-id-assets-neighbors
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-neighbors.
      operations:
      - method: GET
        name: getassetneighborsapiaccountsaccountidworkspacesworkspaceidassetsneighborsget
        description: Get Asset Neighbors
        call: prefect-assets.getassetneighborsapiaccountsaccountidworkspacesworkspaceidassetsneighborsget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          key: rest.key
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/references
      name: api-accounts-account-id-workspaces-workspace-id-assets-references
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-references.
      operations:
      - method: GET
        name: listassetreferencesapiaccountsaccountidworkspacesworkspaceidassetsreferencesget
        description: List Asset References
        call: prefect-assets.listassetreferencesapiaccountsaccountidworkspacesworkspaceidassetsreferencesget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          key: rest.key
          since: rest.since
          until: rest.until
          sort: rest.sort
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/api/accounts/{account-id}/workspaces/{workspace-id}/assets/references/{event-id}
      name: api-accounts-account-id-workspaces-workspace-id-assets-references-event-id
      description: REST surface for api-accounts-account_id-workspaces-workspace_id-assets-references-event_id.
      operations:
      - method: GET
        name: readassetreferenceapiaccountsaccountidworkspacesworkspaceidassetsreferenceseventidget
        description: Read Asset Reference
        call: prefect-assets.readassetreferenceapiaccountsaccountidworkspacesworkspaceidassetsreferenceseventidget
        with:
          account_id: rest.account_id
          workspace_id: rest.workspace_id
          event_id: rest.event_id
          key: rest.key
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: prefect-assets-mcp
    port: 9090
    transport: http
    description: MCP adapter for Prefect Cloud API — Assets. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: list-assets
      description: List Assets
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.listassetsapiaccountsaccountidworkspacesworkspaceidassetsget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        prefix: tools.prefix
        search: tools.search
      outputParameters:
      - type: object
        mapping: $.
    - name: filter-assets
      description: Filter Assets
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: prefect-assets.filterassetsapiaccountsaccountidworkspacesworkspaceidassetsfilterpost
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: filter-assets-page
      description: Filter Assets Page
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.filterassetspageapiaccountsaccountidworkspacesworkspaceidassetsfilternextget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        page-token: tools.page-token
      outputParameters:
      - type: object
        mapping: $.
    - name: read-asset
      description: Read Asset
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.readassetapiaccountsaccountidworkspacesworkspaceidassetskeyget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        key: tools.key
      outputParameters:
      - type: object
        mapping: $.
    - name: delete-asset
      description: Delete Asset
      hints:
        readOnly: false
        destructive: true
        idempotent: true
      call: prefect-assets.deleteassetapiaccountsaccountidworkspacesworkspaceidassetskeydelete
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        key: tools.key
      outputParameters:
      - type: object
        mapping: $.
    - name: latest-dependencies
      description: Latest Dependencies
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.latestdependenciesapiaccountsaccountidworkspacesworkspaceidassetslatestdependenciesget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
      outputParameters:
      - type: object
        mapping: $.
    - name: list-asset-materializations
      description: List Asset Materializations
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.listassetmaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationsget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        key: tools.key
        since: tools.since
        until: tools.until
        sort: tools.sort
      outputParameters:
      - type: object
        mapping: $.
    - name: read-asset-materialization
      description: Read Asset Materialization
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.readassetmaterializationapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        event_id: tools.event_id
        key: tools.key
      outputParameters:
      - type: object
        mapping: $.
    - name: get-upstream-materializations
      description: Get Upstream Materializations
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.getupstreammaterializationsapiaccountsaccountidworkspacesworkspaceidassetsmaterializationseventidupstreamget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        event_id: tools.event_id
        key: tools.key
      outputParameters:
      - type: object
        mapping: $.
    - name: get-asset-neighbors
      description: Get Asset Neighbors
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.getassetneighborsapiaccountsaccountidworkspacesworkspaceidassetsneighborsget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        key: tools.key
      outputParameters:
      - type: object
        mapping: $.
    - name: list-asset-references
      description: List Asset References
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.listassetreferencesapiaccountsaccountidworkspacesworkspaceidassetsreferencesget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        key: tools.key
        since: tools.since
        until: tools.until
        sort: tools.sort
      outputParameters:
      - type: object
        mapping: $.
    - name: read-asset-reference
      description: Read Asset Reference
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: prefect-assets.readassetreferenceapiaccountsaccountidworkspacesworkspaceidassetsreferenceseventidget
      with:
        account_id: tools.account_id
        workspace_id: tools.workspace_id
        event_id: tools.event_id
        key: tools.key
      outputParameters:
      - type: object
        mapping: $.