Mailchimp Marketing API — Segments

naftiko: 1.0.0-alpha2
info:
  label: Mailchimp Marketing API  — Segments
  description: 'Mailchimp Marketing API  — Segments. 9 operations. Lead operation: Mailchimp List Segments. Self-contained
    Naftiko capability covering one Mailchimp business surface.'
  tags:
  - Mailchimp
  - Segments
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    MAILCHIMP_API_KEY: MAILCHIMP_API_KEY
capability:
  consumes:
  - type: http
    namespace: marketing-segments
    baseUri: https://server.api.mailchimp.com/3.0
    description: Mailchimp Marketing API  — Segments business capability. Self-contained, no shared references.
    resources:
    - name: lists-list_id-segments
      path: /lists/{list_id}/segments
      operations:
      - name: previewasegment
        method: GET
        description: Mailchimp List Segments
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: fields
          in: query
          type: array
          description: A comma-separated list of fields to return. Reference parameters of sub-objects with dot notation.
        - name: exclude_fields
          in: query
          type: array
          description: A comma-separated list of fields to exclude. Reference parameters of sub-objects with dot notation.
        - name: count
          in: query
          type: integer
          description: The number of records to return. Default value is 10. Maximum value is 1000
        - name: offset
          in: query
          type: integer
          description: Used for [pagination](https://mailchimp.com/developer/marketing/docs/methods-parameters/#pagination),
            this it the number of records from a collection to skip. D
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: type
          in: query
          type: string
          description: Limit results based on segment type.
        - name: since_created_at
          in: query
          type: string
          description: 'Restrict results to segments created after the set time. Uses ISO 8601 time format: 2015-10-21T15:41:36+00:00.'
        - name: before_created_at
          in: query
          type: string
          description: 'Restrict results to segments created before the set time. Uses ISO 8601 time format: 2015-10-21T15:41:36+00:00.'
        - name: include_cleaned
          in: query
          type: boolean
          description: Include cleaned members in response
        - name: include_transactional
          in: query
          type: boolean
          description: Include transactional members in response
        - name: include_unsubscribed
          in: query
          type: boolean
          description: Include unsubscribed members in response
        - name: since_updated_at
          in: query
          type: string
          description: 'Restrict results to segments update after the set time. Uses ISO 8601 time format: 2015-10-21T15:41:36+00:00.'
        - name: before_updated_at
          in: query
          type: string
          description: 'Restrict results to segments update before the set time. Uses ISO 8601 time format: 2015-10-21T15:41:36+00:00.'
      - name: postlistsidsegments
        method: POST
        description: Mailchimp Add Segment
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: body
          in: body
          type: object
          required: true
    - name: lists-list_id-segments-segment_id
      path: /lists/{list_id}/segments/{segment_id}
      operations:
      - name: getlistsidsegmentsid
        method: GET
        description: Mailchimp Get Segment Info
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: fields
          in: query
          type: array
          description: A comma-separated list of fields to return. Reference parameters of sub-objects with dot notation.
        - name: exclude_fields
          in: query
          type: array
          description: A comma-separated list of fields to exclude. Reference parameters of sub-objects with dot notation.
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: segment_id
          in: path
          type: string
          description: The unique id for the segment.
          required: true
        - name: include_cleaned
          in: query
          type: boolean
          description: Include cleaned members in response
        - name: include_transactional
          in: query
          type: boolean
          description: Include transactional members in response
        - name: include_unsubscribed
          in: query
          type: boolean
          description: Include unsubscribed members in response
      - name: deletelistsidsegmentsid
        method: DELETE
        description: Mailchimp Delete Segment
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: segment_id
          in: path
          type: string
          description: The unique id for the segment.
          required: true
      - name: patchlistsidsegmentsid
        method: PATCH
        description: Mailchimp Update Segment
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: segment_id
          in: path
          type: string
          description: The unique id for the segment.
          required: true
        - name: body
          in: body
          type: object
          required: true
      - name: postlistsidsegmentsid
        method: POST
        description: Mailchimp Batch Add or Remove Members
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: body
          in: body
          type: object
          required: true
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: segment_id
          in: path
          type: string
          description: The unique id for the segment.
          required: true
    - name: lists-list_id-segments-segment_id-members
      path: /lists/{list_id}/segments/{segment_id}/members
      operations:
      - name: getlistsidsegmentsidmembers
        method: GET
        description: Mailchimp List Members in Segment
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: fields
          in: query
          type: array
          description: A comma-separated list of fields to return. Reference parameters of sub-objects with dot notation.
        - name: exclude_fields
          in: query
          type: array
          description: A comma-separated list of fields to exclude. Reference parameters of sub-objects with dot notation.
        - name: count
          in: query
          type: integer
          description: The number of records to return. Default value is 10. Maximum value is 1000
        - name: offset
          in: query
          type: integer
          description: Used for [pagination](https://mailchimp.com/developer/marketing/docs/methods-parameters/#pagination),
            this it the number of records from a collection to skip. D
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: segment_id
          in: path
          type: string
          description: The unique id for the segment.
          required: true
        - name: include_cleaned
          in: query
          type: boolean
          description: Include cleaned members in response
        - name: include_transactional
          in: query
          type: boolean
          description: Include transactional members in response
        - name: include_unsubscribed
          in: query
          type: boolean
          description: Include unsubscribed members in response
      - name: postlistsidsegmentsidmembers
        method: POST
        description: Mailchimp Add Member to Segment
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: segment_id
          in: path
          type: string
          description: The unique id for the segment.
          required: true
        - name: body
          in: body
          type: object
          required: true
    - name: lists-list_id-segments-segment_id-members-subscriber_hash
      path: /lists/{list_id}/segments/{segment_id}/members/{subscriber_hash}
      operations:
      - name: deletelistsidsegmentsidmembersid
        method: DELETE
        description: Mailchimp Remove List Member From Segment
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: list_id
          in: path
          type: string
          description: The unique ID for the list.
          required: true
        - name: segment_id
          in: path
          type: string
          description: The unique id for the segment.
          required: true
        - name: subscriber_hash
          in: path
          type: string
          description: The MD5 hash of the lowercase version of the list member's email address.
          required: true
  exposes:
  - type: rest
    namespace: marketing-segments-rest
    port: 8080
    description: REST adapter for Mailchimp Marketing API  — Segments. One Spectral-compliant resource per consumed operation,
      prefixed with /v1.
    resources:
    - path: /v1/lists/{list-id}/segments
      name: lists-list-id-segments
      description: REST surface for lists-list_id-segments.
      operations:
      - method: GET
        name: previewasegment
        description: Mailchimp List Segments
        call: marketing-segments.previewasegment
        with:
          fields: rest.fields
          exclude_fields: rest.exclude_fields
          count: rest.count
          offset: rest.offset
          list_id: rest.list_id
          type: rest.type
          since_created_at: rest.since_created_at
          before_created_at: rest.before_created_at
          include_cleaned: rest.include_cleaned
          include_transactional: rest.include_transactional
          include_unsubscribed: rest.include_unsubscribed
          since_updated_at: rest.since_updated_at
          before_updated_at: rest.before_updated_at
        outputParameters:
        - type: object
          mapping: $.
      - method: POST
        name: postlistsidsegments
        description: Mailchimp Add Segment
        call: marketing-segments.postlistsidsegments
        with:
          list_id: rest.list_id
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/lists/{list-id}/segments/{segment-id}
      name: lists-list-id-segments-segment-id
      description: REST surface for lists-list_id-segments-segment_id.
      operations:
      - method: GET
        name: getlistsidsegmentsid
        description: Mailchimp Get Segment Info
        call: marketing-segments.getlistsidsegmentsid
        with:
          fields: rest.fields
          exclude_fields: rest.exclude_fields
          list_id: rest.list_id
          segment_id: rest.segment_id
          include_cleaned: rest.include_cleaned
          include_transactional: rest.include_transactional
          include_unsubscribed: rest.include_unsubscribed
        outputParameters:
        - type: object
          mapping: $.
      - method: DELETE
        name: deletelistsidsegmentsid
        description: Mailchimp Delete Segment
        call: marketing-segments.deletelistsidsegmentsid
        with:
          list_id: rest.list_id
          segment_id: rest.segment_id
        outputParameters:
        - type: object
          mapping: $.
      - method: PATCH
        name: patchlistsidsegmentsid
        description: Mailchimp Update Segment
        call: marketing-segments.patchlistsidsegmentsid
        with:
          list_id: rest.list_id
          segment_id: rest.segment_id
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
      - method: POST
        name: postlistsidsegmentsid
        description: Mailchimp Batch Add or Remove Members
        call: marketing-segments.postlistsidsegmentsid
        with:
          body: rest.body
          list_id: rest.list_id
          segment_id: rest.segment_id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/lists/{list-id}/segments/{segment-id}/members
      name: lists-list-id-segments-segment-id-members
      description: REST surface for lists-list_id-segments-segment_id-members.
      operations:
      - method: GET
        name: getlistsidsegmentsidmembers
        description: Mailchimp List Members in Segment
        call: marketing-segments.getlistsidsegmentsidmembers
        with:
          fields: rest.fields
          exclude_fields: rest.exclude_fields
          count: rest.count
          offset: rest.offset
          list_id: rest.list_id
          segment_id: rest.segment_id
          include_cleaned: rest.include_cleaned
          include_transactional: rest.include_transactional
          include_unsubscribed: rest.include_unsubscribed
        outputParameters:
        - type: object
          mapping: $.
      - method: POST
        name: postlistsidsegmentsidmembers
        description: Mailchimp Add Member to Segment
        call: marketing-segments.postlistsidsegmentsidmembers
        with:
          list_id: rest.list_id
          segment_id: rest.segment_id
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/lists/{list-id}/segments/{segment-id}/members/{subscriber-hash}
      name: lists-list-id-segments-segment-id-members-subscriber-hash
      description: REST surface for lists-list_id-segments-segment_id-members-subscriber_hash.
      operations:
      - method: DELETE
        name: deletelistsidsegmentsidmembersid
        description: Mailchimp Remove List Member From Segment
        call: marketing-segments.deletelistsidsegmentsidmembersid
        with:
          list_id: rest.list_id
          segment_id: rest.segment_id
          subscriber_hash: rest.subscriber_hash
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: marketing-segments-mcp
    port: 9090
    transport: http
    description: MCP adapter for Mailchimp Marketing API  — Segments. One tool per consumed operation, routed inline through
      this capability's consumes block.
    tools:
    - name: mailchimp-list-segments
      description: Mailchimp List Segments
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: marketing-segments.previewasegment
      with:
        fields: tools.fields
        exclude_fields: tools.exclude_fields
        count: tools.count
        offset: tools.offset
        list_id: tools.list_id
        type: tools.type
        since_created_at: tools.since_created_at
        before_created_at: tools.before_created_at
        include_cleaned: tools.include_cleaned
        include_transactional: tools.include_transactional
        include_unsubscribed: tools.include_unsubscribed
        since_updated_at: tools.since_updated_at
        before_updated_at: tools.before_updated_at
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-add-segment
      description: Mailchimp Add Segment
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: marketing-segments.postlistsidsegments
      with:
        list_id: tools.list_id
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-get-segment-info
      description: Mailchimp Get Segment Info
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: marketing-segments.getlistsidsegmentsid
      with:
        fields: tools.fields
        exclude_fields: tools.exclude_fields
        list_id: tools.list_id
        segment_id: tools.segment_id
        include_cleaned: tools.include_cleaned
        include_transactional: tools.include_transactional
        include_unsubscribed: tools.include_unsubscribed
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-delete-segment
      description: Mailchimp Delete Segment
      hints:
        readOnly: false
        destructive: true
        idempotent: true
      call: marketing-segments.deletelistsidsegmentsid
      with:
        list_id: tools.list_id
        segment_id: tools.segment_id
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-update-segment
      description: Mailchimp Update Segment
      hints:
        readOnly: false
        destructive: false
        idempotent: true
      call: marketing-segments.patchlistsidsegmentsid
      with:
        list_id: tools.list_id
        segment_id: tools.segment_id
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-batch-add-remove-members
      description: Mailchimp Batch Add or Remove Members
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: marketing-segments.postlistsidsegmentsid
      with:
        body: tools.body
        list_id: tools.list_id
        segment_id: tools.segment_id
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-list-members-segment
      description: Mailchimp List Members in Segment
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: marketing-segments.getlistsidsegmentsidmembers
      with:
        fields: tools.fields
        exclude_fields: tools.exclude_fields
        count: tools.count
        offset: tools.offset
        list_id: tools.list_id
        segment_id: tools.segment_id
        include_cleaned: tools.include_cleaned
        include_transactional: tools.include_transactional
        include_unsubscribed: tools.include_unsubscribed
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-add-member-segment
      description: Mailchimp Add Member to Segment
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: marketing-segments.postlistsidsegmentsidmembers
      with:
        list_id: tools.list_id
        segment_id: tools.segment_id
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: mailchimp-remove-list-member-segment
      description: Mailchimp Remove List Member From Segment
      hints:
        readOnly: false
        destructive: true
        idempotent: true
      call: marketing-segments.deletelistsidsegmentsidmembersid
      with:
        list_id: tools.list_id
        segment_id: tools.segment_id
        subscriber_hash: tools.subscriber_hash
      outputParameters:
      - type: object
        mapping: $.