Crossref — Works

naftiko: 1.0.0-alpha2
info:
  label: Crossref — Works
  description: 'Crossref — Works. 8 operations. Lead operation: Works. Self-contained Naftiko capability covering one Crossref
    business surface.'
  tags:
  - Crossref
  - Works
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    CROSSREF_API_KEY: CROSSREF_API_KEY
capability:
  consumes:
  - type: http
    namespace: crossref-works
    baseUri: ''
    description: Crossref — Works business capability. Self-contained, no shared references.
    resources:
    - name: funders-id-works
      path: /funders/{id}/works
      operations:
      - name: get
        method: GET
        description: Returns list of works associated with the specified {id}.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: rows
          in: query
          type: integer
          description: The number of rows per page
        - name: order
          in: query
          type: string
          description: Combined with sort can be used to specify the order of results, e.g. asc or desc
        - name: facet
          in: query
          type: string
          description: Exposes the ability to retrieve counts for pre-defined facets e.g. `type-name:*` returns counts of
            all works by type
        - name: sample
          in: query
          type: integer
          description: Exposes the ability to return `N` randomly sampled items
        - name: sort
          in: query
          type: string
          description: Exposes the ability to sort results by a certain field, e.g. `score`
        - name: offset
          in: query
          type: integer
          description: The number of rows to skip before returning
        - name: mailto
          in: query
          type: string
          description: The email address to identify yourself and be in the "polite pool"
        - name: select
          in: query
          type: string
          description: Exposes the ability to select certain fields, supports a comma separated list of fields, e.g. `DOI,volume`
        - name: query
          in: query
          type: string
          description: Exposes the ability to free text query certain fields
        - name: filter
          in: query
          type: string
          description: Exposes the ability to filter by certain fields, supports a comma separated list of lucene filters,
            e.g. `content-domain:psychoceramics.labs.crossref.org`
        - name: cursor
          in: query
          type: string
          description: Exposes the ability to deep page through large result sets, where offset would cause performance problems
        - name: id
          in: path
          type: string
          description: The id of the funder
          required: true
    - name: journals-issn-works
      path: /journals/{issn}/works
      operations:
      - name: get
        method: GET
        description: Returns a list of works in the journal identified by {issn}.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: rows
          in: query
          type: integer
          description: The number of rows per page
        - name: order
          in: query
          type: string
          description: Combined with sort can be used to specify the order of results, e.g. asc or desc
        - name: facet
          in: query
          type: string
          description: Exposes the ability to retrieve counts for pre-defined facets e.g. `type-name:*` returns counts of
            all works by type
        - name: sample
          in: query
          type: integer
          description: Exposes the ability to return `N` randomly sampled items
        - name: sort
          in: query
          type: string
          description: Exposes the ability to sort results by a certain field, e.g. `score`
        - name: offset
          in: query
          type: integer
          description: The number of rows to skip before returning
        - name: mailto
          in: query
          type: string
          description: The email address to identify yourself and be in the "polite pool"
        - name: select
          in: query
          type: string
          description: Exposes the ability to select certain fields, supports a comma separated list of fields, e.g. `DOI,volume`
        - name: query
          in: query
          type: string
          description: Exposes the ability to free text query certain fields
        - name: filter
          in: query
          type: string
          description: Exposes the ability to filter by certain fields, supports a comma separated list of lucene filters,
            e.g. `content-domain:psychoceramics.labs.crossref.org`
        - name: cursor
          in: query
          type: string
          description: Exposes the ability to deep page through large result sets, where offset would cause performance problems
        - name: issn
          in: path
          type: array
          description: The ISSN identifier associated with the journal
          required: true
    - name: members-id-works
      path: /members/{id}/works
      operations:
      - name: get
        method: GET
        description: Returns list of works associated with a Crossref member (deposited by a Crossref member) with {id}.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: rows
          in: query
          type: integer
          description: The number of rows per page
        - name: order
          in: query
          type: string
          description: Combined with sort can be used to specify the order of results, e.g. asc or desc
        - name: facet
          in: query
          type: string
          description: Exposes the ability to retrieve counts for pre-defined facets e.g. `type-name:*` returns counts of
            all works by type
        - name: sample
          in: query
          type: integer
          description: Exposes the ability to return `N` randomly sampled items
        - name: sort
          in: query
          type: string
          description: Exposes the ability to sort results by a certain field, e.g. `score`
        - name: offset
          in: query
          type: integer
          description: The number of rows to skip before returning
        - name: mailto
          in: query
          type: string
          description: The email address to identify yourself and be in the "polite pool"
        - name: select
          in: query
          type: string
          description: Exposes the ability to select certain fields, supports a comma separated list of fields, e.g. `DOI,volume`
        - name: query
          in: query
          type: string
          description: Exposes the ability to free text query certain fields
        - name: filter
          in: query
          type: string
          description: Exposes the ability to filter by certain fields, supports a comma separated list of lucene filters,
            e.g. `content-domain:psychoceramics.labs.crossref.org`
        - name: cursor
          in: query
          type: string
          description: Exposes the ability to deep page through large result sets, where offset would cause performance problems
        - name: id
          in: path
          type: integer
          required: true
    - name: prefixes-prefix-works
      path: /prefixes/{prefix}/works
      operations:
      - name: get
        method: GET
        description: Returns list of works associated with specified {prefix}.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: rows
          in: query
          type: integer
          description: The number of rows per page
        - name: order
          in: query
          type: string
          description: Combined with sort can be used to specify the order of results, e.g. asc or desc
        - name: facet
          in: query
          type: string
          description: Exposes the ability to retrieve counts for pre-defined facets e.g. `type-name:*` returns counts of
            all works by type
        - name: sample
          in: query
          type: integer
          description: Exposes the ability to return `N` randomly sampled items
        - name: sort
          in: query
          type: string
          description: Exposes the ability to sort results by a certain field, e.g. `score`
        - name: offset
          in: query
          type: integer
          description: The number of rows to skip before returning
        - name: mailto
          in: query
          type: string
          description: The email address to identify yourself and be in the "polite pool"
        - name: select
          in: query
          type: string
          description: Exposes the ability to select certain fields, supports a comma separated list of fields, e.g. `DOI,volume`
        - name: query
          in: query
          type: string
          description: Exposes the ability to free text query certain fields
        - name: filter
          in: query
          type: string
          description: Exposes the ability to filter by certain fields, supports a comma separated list of lucene filters,
            e.g. `content-domain:psychoceramics.labs.crossref.org`
        - name: cursor
          in: query
          type: string
          description: Exposes the ability to deep page through large result sets, where offset would cause performance problems
        - name: prefix
          in: path
          type: string
          required: true
    - name: types-id-works
      path: /types/{id}/works
      operations:
      - name: get
        method: GET
        description: returns list of works of type {id}.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: rows
          in: query
          type: integer
          description: The number of rows per page
        - name: order
          in: query
          type: string
          description: Combined with sort can be used to specify the order of results, e.g. asc or desc
        - name: facet
          in: query
          type: string
          description: Exposes the ability to retrieve counts for pre-defined facets e.g. `type-name:*` returns counts of
            all works by type
        - name: sample
          in: query
          type: integer
          description: Exposes the ability to return `N` randomly sampled items
        - name: sort
          in: query
          type: string
          description: Exposes the ability to sort results by a certain field, e.g. `score`
        - name: offset
          in: query
          type: integer
          description: The number of rows to skip before returning
        - name: mailto
          in: query
          type: string
          description: The email address to identify yourself and be in the "polite pool"
        - name: select
          in: query
          type: string
          description: Exposes the ability to select certain fields, supports a comma separated list of fields, e.g. `DOI,volume`
        - name: query
          in: query
          type: string
          description: Exposes the ability to free text query certain fields
        - name: filter
          in: query
          type: string
          description: Exposes the ability to filter by certain fields, supports a comma separated list of lucene filters,
            e.g. `content-domain:psychoceramics.labs.crossref.org`
        - name: cursor
          in: query
          type: string
          description: Exposes the ability to deep page through large result sets, where offset would cause performance problems
        - name: id
          in: path
          type: integer
          required: true
    - name: works
      path: /works
      operations:
      - name: get
        method: GET
        description: Returns a list of all works (journal articles, conference proceedings, books, components, etc), 20 per
          page.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: rows
          in: query
          type: integer
          description: The number of rows per page
        - name: order
          in: query
          type: string
          description: Combined with sort can be used to specify the order of results, e.g. asc or desc
        - name: facet
          in: query
          type: string
          description: Exposes the ability to retrieve counts for pre-defined facets e.g. `type-name:*` returns counts of
            all works by type
        - name: sample
          in: query
          type: integer
          description: Exposes the ability to return `N` randomly sampled items
        - name: sort
          in: query
          type: string
          description: Exposes the ability to sort results by a certain field, e.g. `score`
        - name: offset
          in: query
          type: integer
          description: The number of rows to skip before returning
        - name: mailto
          in: query
          type: string
          description: The email address to identify yourself and be in the "polite pool"
        - name: select
          in: query
          type: string
          description: Exposes the ability to select certain fields, supports a comma separated list of fields, e.g. `DOI,volume`
        - name: query
          in: query
          type: string
          description: Exposes the ability to free text query certain fields
        - name: filter
          in: query
          type: string
          description: Exposes the ability to filter by certain fields, supports a comma separated list of lucene filters,
            e.g. `content-domain:psychoceramics.labs.crossref.org`
        - name: cursor
          in: query
          type: string
          description: Exposes the ability to deep page through large result sets, where offset would cause performance problems
    - name: works-doi
      path: /works/{doi}
      operations:
      - name: get
        method: GET
        description: Returns metadata for the specified Crossref DOI, as an example use DOI 10.5555/12345678
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: doi
          in: path
          type: string
          description: The DOI identifier associated with the work
          required: true
    - name: works-doi-agency
      path: /works/{doi}/agency
      operations:
      - name: get
        method: GET
        description: Gets the agency associated with a specific work by its DOI, as an example use DOI 10.5555/12345678
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: doi
          in: path
          type: string
          description: The DOI identifier associated with the work
          required: true
  exposes:
  - type: rest
    namespace: crossref-works-rest
    port: 8080
    description: REST adapter for Crossref — Works. One Spectral-compliant resource per consumed operation, prefixed with
      /v1.
    resources:
    - path: /v1/funders/{id}/works
      name: funders-id-works
      description: REST surface for funders-id-works.
      operations:
      - method: GET
        name: get
        description: Returns list of works associated with the specified {id}.
        call: crossref-works.get
        with:
          rows: rest.rows
          order: rest.order
          facet: rest.facet
          sample: rest.sample
          sort: rest.sort
          offset: rest.offset
          mailto: rest.mailto
          select: rest.select
          query: rest.query
          filter: rest.filter
          cursor: rest.cursor
          id: rest.id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/journals/{issn}/works
      name: journals-issn-works
      description: REST surface for journals-issn-works.
      operations:
      - method: GET
        name: get
        description: Returns a list of works in the journal identified by {issn}.
        call: crossref-works.get
        with:
          rows: rest.rows
          order: rest.order
          facet: rest.facet
          sample: rest.sample
          sort: rest.sort
          offset: rest.offset
          mailto: rest.mailto
          select: rest.select
          query: rest.query
          filter: rest.filter
          cursor: rest.cursor
          issn: rest.issn
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/members/{id}/works
      name: members-id-works
      description: REST surface for members-id-works.
      operations:
      - method: GET
        name: get
        description: Returns list of works associated with a Crossref member (deposited by a Crossref member) with {id}.
        call: crossref-works.get
        with:
          rows: rest.rows
          order: rest.order
          facet: rest.facet
          sample: rest.sample
          sort: rest.sort
          offset: rest.offset
          mailto: rest.mailto
          select: rest.select
          query: rest.query
          filter: rest.filter
          cursor: rest.cursor
          id: rest.id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/prefixes/{prefix}/works
      name: prefixes-prefix-works
      description: REST surface for prefixes-prefix-works.
      operations:
      - method: GET
        name: get
        description: Returns list of works associated with specified {prefix}.
        call: crossref-works.get
        with:
          rows: rest.rows
          order: rest.order
          facet: rest.facet
          sample: rest.sample
          sort: rest.sort
          offset: rest.offset
          mailto: rest.mailto
          select: rest.select
          query: rest.query
          filter: rest.filter
          cursor: rest.cursor
          prefix: rest.prefix
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/types/{id}/works
      name: types-id-works
      description: REST surface for types-id-works.
      operations:
      - method: GET
        name: get
        description: returns list of works of type {id}.
        call: crossref-works.get
        with:
          rows: rest.rows
          order: rest.order
          facet: rest.facet
          sample: rest.sample
          sort: rest.sort
          offset: rest.offset
          mailto: rest.mailto
          select: rest.select
          query: rest.query
          filter: rest.filter
          cursor: rest.cursor
          id: rest.id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/works
      name: works
      description: REST surface for works.
      operations:
      - method: GET
        name: get
        description: Returns a list of all works (journal articles, conference proceedings, books, components, etc), 20 per
          page.
        call: crossref-works.get
        with:
          rows: rest.rows
          order: rest.order
          facet: rest.facet
          sample: rest.sample
          sort: rest.sort
          offset: rest.offset
          mailto: rest.mailto
          select: rest.select
          query: rest.query
          filter: rest.filter
          cursor: rest.cursor
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/works/{doi}
      name: works-doi
      description: REST surface for works-doi.
      operations:
      - method: GET
        name: get
        description: Returns metadata for the specified Crossref DOI, as an example use DOI 10.5555/12345678
        call: crossref-works.get
        with:
          doi: rest.doi
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/works/{doi}/agency
      name: works-doi-agency
      description: REST surface for works-doi-agency.
      operations:
      - method: GET
        name: get
        description: Gets the agency associated with a specific work by its DOI, as an example use DOI 10.5555/12345678
        call: crossref-works.get
        with:
          doi: rest.doi
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: crossref-works-mcp
    port: 9090
    transport: http
    description: MCP adapter for Crossref — Works. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: returns-list-works-associated-specified
      description: Returns list of works associated with the specified {id}.
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        rows: tools.rows
        order: tools.order
        facet: tools.facet
        sample: tools.sample
        sort: tools.sort
        offset: tools.offset
        mailto: tools.mailto
        select: tools.select
        query: tools.query
        filter: tools.filter
        cursor: tools.cursor
        id: tools.id
      outputParameters:
      - type: object
        mapping: $.
    - name: returns-list-works-journal-identified
      description: Returns a list of works in the journal identified by {issn}.
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        rows: tools.rows
        order: tools.order
        facet: tools.facet
        sample: tools.sample
        sort: tools.sort
        offset: tools.offset
        mailto: tools.mailto
        select: tools.select
        query: tools.query
        filter: tools.filter
        cursor: tools.cursor
        issn: tools.issn
      outputParameters:
      - type: object
        mapping: $.
    - name: returns-list-works-associated-crossref
      description: Returns list of works associated with a Crossref member (deposited by a Crossref member) with {id}.
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        rows: tools.rows
        order: tools.order
        facet: tools.facet
        sample: tools.sample
        sort: tools.sort
        offset: tools.offset
        mailto: tools.mailto
        select: tools.select
        query: tools.query
        filter: tools.filter
        cursor: tools.cursor
        id: tools.id
      outputParameters:
      - type: object
        mapping: $.
    - name: returns-list-works-associated-specified-2
      description: Returns list of works associated with specified {prefix}.
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        rows: tools.rows
        order: tools.order
        facet: tools.facet
        sample: tools.sample
        sort: tools.sort
        offset: tools.offset
        mailto: tools.mailto
        select: tools.select
        query: tools.query
        filter: tools.filter
        cursor: tools.cursor
        prefix: tools.prefix
      outputParameters:
      - type: object
        mapping: $.
    - name: returns-list-works-type-id
      description: returns list of works of type {id}.
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        rows: tools.rows
        order: tools.order
        facet: tools.facet
        sample: tools.sample
        sort: tools.sort
        offset: tools.offset
        mailto: tools.mailto
        select: tools.select
        query: tools.query
        filter: tools.filter
        cursor: tools.cursor
        id: tools.id
      outputParameters:
      - type: object
        mapping: $.
    - name: returns-list-all-works-journal
      description: Returns a list of all works (journal articles, conference proceedings, books, components, etc), 20 per
        page.
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        rows: tools.rows
        order: tools.order
        facet: tools.facet
        sample: tools.sample
        sort: tools.sort
        offset: tools.offset
        mailto: tools.mailto
        select: tools.select
        query: tools.query
        filter: tools.filter
        cursor: tools.cursor
      outputParameters:
      - type: object
        mapping: $.
    - name: returns-metadata-specified-crossref-doi
      description: Returns metadata for the specified Crossref DOI, as an example use DOI 10.5555/12345678
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        doi: tools.doi
      outputParameters:
      - type: object
        mapping: $.
    - name: gets-agency-associated-specific-work
      description: Gets the agency associated with a specific work by its DOI, as an example use DOI 10.5555/12345678
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crossref-works.get
      with:
        doi: tools.doi
      outputParameters:
      - type: object
        mapping: $.