> ## Documentation Index
> Fetch the complete documentation index at: https://developers.phrase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Unlink a child key from a parent key

> Removes a single child key from a parent key's link group. A link group is the relationship model that keeps child keys synchronized with a parent: while linked, a child key's translations are derived from the parent's content. When you call this endpoint, the child key leaves the group and becomes independent — its existing translations are updated with the parent's current content and then marked unverified, signalling that reviewers should confirm the content is still appropriate for the child's context.

Use this endpoint when you need to detach one specific child key while keeping other children linked. To detach multiple children at once, use the batch unlink endpoint. This operation is only available on main projects.

It returns 422 when the child key is not currently linked to the specified parent key, or when a translation update fails during the unlink process.




## OpenAPI

````yaml /openapi/phrase-strings.json delete /projects/{project_id}/keys/{id}/key_links/{child_key_id}
openapi: 3.0.3
info:
  title: Phrase Strings API Reference
  version: 2.0.0
  description: >-
    Phrase Strings is a translation management platform for software projects.
    You can collaborate on language file translation with your team or order
    translations through our platform. The API allows you to import locale
    files, download locale files, tag keys or interact in other ways with the
    localization data stored in Phrase Strings for your account.
  contact:
    name: Phrase Support
    url: https://developers.phrase.com/api/
    email: support@phrase.com
  x-logo:
    url: https://developers.phrase.com/images/phrase-logo.svg
    backgroundColor: '#03eab3'
    altText: Phrase Strings
  termsOfService: https://phrase.com/terms/
  license:
    name: MIT
    url: https://choosealicense.com/licenses/mit/
servers:
  - url: https://api.phrase.com/v2
    description: EU production server
  - url: https://api.us.app.phrase.com/v2
    description: US production server
security:
  - Token: []
  - Basic: []
tags:
  - name: Accounts
  - name: Authorizations
    description: >
      The endpoints provided by the Authorizations API are **only accessible via
      Basic authentication with email and password**.


      When creating a new authorization, the new access token for this
      authorization will be returned in the immediate response but not later,
      due to security reasons. When accessing authorizations later, you will
      only see the last eight chars of the token in plain text
      (`token_last_eight`) and the SHA256 digest of the token for reference
      (`hashed_token`).


      For instructions on how authorization in general works, see our [Auth
      Guide](#overview--authentication).


      ### Scopes


      When creating or updating an OAuth authorization, you can define a list of
      scopes to limit the access that can be performed by that authorization.


      #### Available Scopes


      <div class="table-responsive">
        <table class="basic-table">
          <thead>
            <tr class="basic-table__row basic-table__row--header">
              <th class="basic-table__cell basic-table__cell--header">Scope</th>
              <th class="basic-table__cell basic-table__cell--header">Description</th>
            </tr>
          </thead>
          <tbody>
            <tr>
              <td class="basic-table__cell"><code>read</code></td>
              <td class="basic-table__cell">Read projects, locales, keys, translations, orders</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>write</code></td>
              <td class="basic-table__cell">Write projects, locales, keys, translations but not orders</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>orders.create</code></td>
              <td class="basic-table__cell">Create and confirm orders</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>team.manage</code></td>
              <td class="basic-table__cell">Manage invitations and members</td>
            </tr>
          </tbody>
        </table>
      </div>
  - name: Automation Events
  - name: Blacklisted Keys
  - name: Branches
    description: >
      ### Branch creation


      Branches will be created asynchronously. State of branch creation is
      returned as state.


      #### Available States


      <div class="table-responsive">
        <table class="basic-table">
          <thead>
            <tr class="basic-table__row basic-table__row--header">
              <th class="basic-table__cell basic-table__cell--header">State</th>
              <th class="basic-table__cell basic-table__cell--header">Description</th>
            </tr>
          </thead>
          <tbody>
            <tr>
              <td class="basic-table__cell"><code>initialized</code></td>
              <td class="basic-table__cell">Data received.</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>processing</code></td>
              <td class="basic-table__cell">Branch is currently creating.</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>success</code></td>
              <td class="basic-table__cell">Branch was created successfully</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>error</code></td>
              <td class="basic-table__cell">Branch creation failed.</td>
            </tr>
          </tbody>
        </table>
      </div>
  - name: Comments
  - name: Comment Reactions
  - name: Comment Replies
  - name: Custom Metadata
  - name: Distributions
  - name: Documents
  - name: Figma Attachments
  - name: Formats
  - name: Glossaries
  - name: Glossary Terms
  - name: Glossary Term Translations
  - name: ICU
  - name: Invitations
    description: >
      With the invitation endpoint you can [manage and invite
      users](https://support.phrase.com/hc/en-us/articles/5709742418716) to
      Phrase Strings via API. A user can have the role Manager, Developer or
      Translator each with its own access rights. Developers and translators
      need resources like projects and locales assigned in order to access them.
  - name: Job Annotations
    description: >
      The job annotations endpoints allow you to create, update and delete
      annotations for jobs and job locales. Annotations are used to add metadata
      to a job or job locale.
  - name: Job Comments
  - name: Job Locales
  - name: Job Template Locales
  - name: Job Templates
  - name: Jobs
  - name: Key Format Annotations
  - name: Keys
  - name: Linked Keys
  - name: Locales
  - name: Locale Downloads
  - name: Members
    description: >
      With the members endpoints you can do basic [team and user
      management](https://support.phrase.com/hc/en-us/articles/5709742418716)
      via API. A user can have the role Manager, Developer or Translator each
      with its own access rights. Developers and translators need resources like
      projects and locales assigned in order to access them.
  - name: Notifications
  - name: Notification Groups
  - name: Orders
    description: >
      ### List of categories [TextMaster]


      When ordering translations from TextMaster, you need to specify a category
      ID along with your order. See this list for information on the category ID
      and their equivalent description.


      <div class="table-responsive">
        <table class="basic-table">
          <thead>
            <tr class="basic-table__row basic-table__row--header">
              <th class="basic-table__cell basic-table__cell--header">Category ID</th>
              <th class="basic-table__cell basic-table__cell--header">Description</th>
            </tr>
          </thead>
          <tbody>
            <tr><td class="basic-table__cell">C001</td><td class="basic-table__cell">Agriculture</td></tr>
            <tr><td class="basic-table__cell">C002</td><td class="basic-table__cell">Aerospace</td></tr>
            <tr><td class="basic-table__cell">C003</td><td class="basic-table__cell">Animals/Pets/Plants</td></tr>
            <tr><td class="basic-table__cell">C004</td><td class="basic-table__cell">Arts/Culture/Literature</td></tr>
            <tr><td class="basic-table__cell">C005</td><td class="basic-table__cell">Automotive/Transportation</td></tr>
            <tr><td class="basic-table__cell">C006</td><td class="basic-table__cell">Computers/Technology/Software</td></tr>
            <tr><td class="basic-table__cell">C007</td><td class="basic-table__cell">Telecom</td></tr>
            <tr><td class="basic-table__cell">C008</td><td class="basic-table__cell">Real Estate/Construction/Building</td></tr>
            <tr><td class="basic-table__cell">C009</td><td class="basic-table__cell">Consumer Goods</td></tr>
            <tr><td class="basic-table__cell">C010</td><td class="basic-table__cell">Education</td></tr>
            <tr><td class="basic-table__cell">C011</td><td class="basic-table__cell">Entertainment</td></tr>
            <tr><td class="basic-table__cell">C012</td><td class="basic-table__cell">Ecology/Environment</td></tr>
            <tr><td class="basic-table__cell">C013</td><td class="basic-table__cell">Health/Biotechnology/Pharma</td></tr>
            <tr><td class="basic-table__cell">C014</td><td class="basic-table__cell">Internet</td></tr>
            <tr><td class="basic-table__cell">C015</td><td class="basic-table__cell">Policy/Government/Public</td></tr>
            <tr><td class="basic-table__cell">C016</td><td class="basic-table__cell">Publishing/Media/Communication</td></tr>
            <tr><td class="basic-table__cell">C017</td><td class="basic-table__cell">Religion</td></tr>
            <tr><td class="basic-table__cell">C018</td><td class="basic-table__cell">Food/Beverages</td></tr>
            <tr><td class="basic-table__cell">C019</td><td class="basic-table__cell">Retail</td></tr>
            <tr><td class="basic-table__cell">C020</td><td class="basic-table__cell">Fashion/Luxury/Textiles</td></tr>
            <tr><td class="basic-table__cell">C021</td><td class="basic-table__cell">Travel/Tourism</td></tr>
            <tr><td class="basic-table__cell">C022</td><td class="basic-table__cell">Natural Resources/Energy</td></tr>
            <tr><td class="basic-table__cell">C023</td><td class="basic-table__cell">Banking/Financial Services/Insurance</td></tr>
            <tr><td class="basic-table__cell">C024</td><td class="basic-table__cell">Legal Affairs/Tax/Law</td></tr>
            <tr><td class="basic-table__cell">C025</td><td class="basic-table__cell">Raw Materials/Industrial Goods</td></tr>
            <tr><td class="basic-table__cell">C026</td><td class="basic-table__cell">Lifestyle/Leisure/Hobbies</td></tr>
            <tr><td class="basic-table__cell">C027</td><td class="basic-table__cell">Sports</td></tr>
            <tr><td class="basic-table__cell">C028</td><td class="basic-table__cell">Home/Family/Friends/Children</td></tr>
            <tr><td class="basic-table__cell">C029</td><td class="basic-table__cell">Economy/Financial Markets</td></tr>
            <tr><td class="basic-table__cell">C030</td><td class="basic-table__cell">Science</td></tr>
            <tr><td class="basic-table__cell">C031</td><td class="basic-table__cell">Human Resources/Employment</td></tr>
            <tr><td class="basic-table__cell">C032</td><td class="basic-table__cell">Adult (Pornography, Violence, etc.)</td></tr>
          </tbody>
        </table>
      </div>
  - name: Organization Job Template Locales
  - name: Organization Job Templates
  - name: Pre Translations
  - name: Projects
  - name: Quality
  - name: Releases
  - name: Release Triggers
  - name: Repo Syncs
    description: >
      The Repo Syncs API allows you to synchronize your Phrase projects with
      your code repositories.

      You can import translations from your repository to Phrase and export
      translations from Phrase to your repository.
  - name: Repo Sync Events
  - name: Reports
  - name: Search
  - name: Screenshot Markers
  - name: Screenshots
  - name: Spaces
  - name: Style guides
  - name: Tags
  - name: Teams
  - name: Translations
  - name: Uploads
    description: >
      ### Formats


      We support all common localization file formats. For a detailed overview,
      see our [Format
      Guide](https://support.phrase.com/hc/en-us/sections/6111343326364).


      ### Processing


      Uploads will be processed asynchronously and thus the data might not be
      imported yet although the upload is completed. Therefore we recommend to
      evaluate the returned <code>state</code> field for information on the
      import progress.


      #### Available States


      <div class="table-responsive">
        <table class="basic-table">
          <thead>
            <tr class="basic-table__row basic-table__row--header">
              <th class="basic-table__cell basic-table__cell--header">State</th>
              <th class="basic-table__cell basic-table__cell--header">Description</th>
            </tr>
          </thead>
          <tbody>
            <tr>
              <td class="basic-table__cell"><code>initialized</code></td>
              <td class="basic-table__cell">Data received.</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>waiting_for_preview</code></td>
              <td class="basic-table__cell">Upload is waiting for preview to be finished.</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>waiting</code></td>
              <td class="basic-table__cell">Upload is waiting for processing.</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>processing</code></td>
              <td class="basic-table__cell">Upload is being processed, data is currently imported.</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>success</code></td>
              <td class="basic-table__cell">Upload is complete and all data is imported.</td>
            </tr>
            <tr>
              <td class="basic-table__cell"><code>error</code></td>
              <td class="basic-table__cell">Upload or import process failed.</td>
            </tr>
          </tbody>
        </table>
      </div>
  - name: Users
  - name: Variables
  - name: Versions / History
  - name: Webhooks
  - name: Webhook Deliveries
paths:
  /projects/{project_id}/keys/{id}/key_links/{child_key_id}:
    delete:
      tags:
        - Linked Keys
      summary: Unlink a child key from a parent key
      description: >
        Removes a single child key from a parent key's link group. A link group
        is the relationship model that keeps child keys synchronized with a
        parent: while linked, a child key's translations are derived from the
        parent's content. When you call this endpoint, the child key leaves the
        group and becomes independent — its existing translations are updated
        with the parent's current content and then marked unverified, signalling
        that reviewers should confirm the content is still appropriate for the
        child's context.


        Use this endpoint when you need to detach one specific child key while
        keeping other children linked. To detach multiple children at once, use
        the batch unlink endpoint. This operation is only available on main
        projects.


        It returns 422 when the child key is not currently linked to the
        specified parent key, or when a translation update fails during the
        unlink process.
      operationId: key_links/destroy
      parameters:
        - $ref: '#/components/parameters/X-PhraseApp-OTP'
        - $ref: '#/components/parameters/project_id'
        - $ref: '#/components/parameters/key_id_as_id'
        - in: path
          name: child_key_id
          description: The ID of the child translation key to unlink from the parent.
          required: true
          schema:
            type: string
            example: 1234abcd1234cdef1234abcd1234cdef
      responses:
        '200':
          description: >-
            The child key was successfully unlinked from the parent key. The
            response body is empty.
          headers:
            X-Rate-Limit-Limit:
              $ref: '#/components/headers/X-Rate-Limit-Limit'
            X-Rate-Limit-Remaining:
              $ref: '#/components/headers/X-Rate-Limit-Remaining'
            X-Rate-Limit-Reset:
              $ref: '#/components/headers/X-Rate-Limit-Reset'
          content: {}
        '400':
          $ref: '#/components/responses/400'
        '401':
          $ref: '#/components/responses/401'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '422':
          $ref: '#/components/responses/422'
        '429':
          $ref: '#/components/responses/429'
      x-code-samples:
        - lang: Curl
          source: >-
            curl -i
            "https://api.phrase.com/v2/projects/:project_id/keys/:id/key_links/1234abcd1234cdef1234abcd1234cdef"
            \
              -u USERNAME_OR_ACCESS_TOKEN \
              -X DELETE
components:
  parameters:
    X-PhraseApp-OTP:
      in: header
      name: X-PhraseApp-OTP
      description: Two-Factor-Authentication token (optional)
      required: false
      allowEmptyValue: false
      schema:
        type: string
    project_id:
      in: path
      name: project_id
      description: Project ID
      required: true
      schema:
        type: string
    key_id_as_id:
      in: path
      name: id
      description: Parent Translation Key ID
      required: true
      schema:
        type: string
  headers:
    X-Rate-Limit-Limit:
      description: The number of allowed requests in the current period
      schema:
        type: integer
    X-Rate-Limit-Remaining:
      description: The number of remaining requests in the current period
      schema:
        type: integer
    X-Rate-Limit-Reset:
      description: >-
        Timestamp of end of current time period as UNIX timestamp, see [Rate
        Limiting](/en/api/strings/pagination#rate-limiting)
      schema:
        type: integer
  responses:
    '400':
      description: >-
        Bad request. The request could not be parsed or a parameter failed
        validation. Verify the request body, the content type, and the parameter
        types, then retry.
      headers:
        X-Rate-Limit-Limit:
          $ref: '#/components/headers/X-Rate-Limit-Limit'
        X-Rate-Limit-Remaining:
          $ref: '#/components/headers/X-Rate-Limit-Remaining'
        X-Rate-Limit-Reset:
          $ref: '#/components/headers/X-Rate-Limit-Reset'
    '401':
      description: >-
        Unauthorized. Authentication failed because the access token is missing,
        expired, or invalid. Supply a valid access token and retry.
    '403':
      description: >-
        Forbidden. The credentials are valid but not permitted for this request:
        the access token may lack the required scope, the user may lack
        permission on the resource, or the account plan may not include the
        feature. Use a token with the required scope on an account and user that
        hold the necessary permissions.
      headers:
        X-Rate-Limit-Limit:
          $ref: '#/components/headers/X-Rate-Limit-Limit'
        X-Rate-Limit-Remaining:
          $ref: '#/components/headers/X-Rate-Limit-Remaining'
        X-Rate-Limit-Reset:
          $ref: '#/components/headers/X-Rate-Limit-Reset'
    '404':
      description: >-
        Not found. The requested resource does not exist or is not visible to
        the authenticated user. Verify the identifiers in the request path and
        that the token has access to them, then retry.
      headers:
        X-Rate-Limit-Limit:
          $ref: '#/components/headers/X-Rate-Limit-Limit'
        X-Rate-Limit-Remaining:
          $ref: '#/components/headers/X-Rate-Limit-Remaining'
        X-Rate-Limit-Reset:
          $ref: '#/components/headers/X-Rate-Limit-Reset'
    '422':
      description: >-
        Unprocessable entity. The request was well-formed but failed validation.
        The response body lists each offending field in the `errors` array, with
        its resource, field, and a human-readable message. Correct the listed
        fields and retry.
      content:
        application/json:
          schema:
            type: object
            properties:
              message:
                type: string
              errors:
                type: array
                items:
                  type: object
                  properties:
                    resource:
                      type: string
                    field:
                      type: string
                    message:
                      type: string
            example:
              message: Validation Failed
              errors:
                - resource: Resource
                  field: name
                  message: can't be blank
      headers:
        X-Rate-Limit-Limit:
          $ref: '#/components/headers/X-Rate-Limit-Limit'
        X-Rate-Limit-Remaining:
          $ref: '#/components/headers/X-Rate-Limit-Remaining'
        X-Rate-Limit-Reset:
          $ref: '#/components/headers/X-Rate-Limit-Reset'
    '429':
      description: >-
        Too many requests. The rate limit has been exceeded. Wait until the time
        indicated by the `X-Rate-Limit-Reset` response header before retrying.
      headers:
        X-Rate-Limit-Limit:
          $ref: '#/components/headers/X-Rate-Limit-Limit'
        X-Rate-Limit-Remaining:
          $ref: '#/components/headers/X-Rate-Limit-Remaining'
        X-Rate-Limit-Reset:
          $ref: '#/components/headers/X-Rate-Limit-Reset'
  securitySchemes:
    Token:
      type: apiKey
      in: header
      name: Authorization
      description: Enter your token in the format `token TOKEN`
    Basic:
      type: http
      scheme: basic

````