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

# Update project slug

> Replaces the project's slug with the supplied value.

The slug must match `^[a-z0-9](?:[a-z0-9-]{0,8}[a-z0-9])?$` — 1–10 characters of lowercase letters, digits, and hyphens, with no leading or trailing hyphen. Invalid formats return `422`.

Returns `409` if another active project already owns the slug. Slugs from soft-deleted projects are reusable.

Requires `Authorization: Basic base64(projectId:projectSecret)`.



## OpenAPI

````yaml https://spectrum.photon.codes/openapi/json patch /projects/{projectId}/slug/
openapi: 3.1.0
info:
  title: Spectrum Cloud External API
  description: Client-facing API for Spectrum Cloud.
  version: 1.0.0
servers:
  - url: https://spectrum.photon.codes
security: []
tags:
  - name: billing
    description: Billing and subscription operations
  - name: imessage
    description: iMessage platform operations
  - name: lines
    description: Phone line enumeration across platforms
  - name: platforms
    description: Platform management operations
  - name: users
    description: User operations
  - name: voice
    description: Voice platform operations
  - name: webhooks
    description: Webhook registration for receiving Spectrum events
  - name: whatsapp-business
    description: WhatsApp Business platform operations
  - name: slack
    description: Slack platform operations
paths:
  /projects/{projectId}/slug/:
    patch:
      tags:
        - projects
      summary: Update project slug
      description: >-
        Replaces the project's slug with the supplied value.


        The slug must match `^[a-z0-9](?:[a-z0-9-]{0,8}[a-z0-9])?$` — 1–10
        characters of lowercase letters, digits, and hyphens, with no leading or
        trailing hyphen. Invalid formats return `422`.


        Returns `409` if another active project already owns the slug. Slugs
        from soft-deleted projects are reusable.


        Requires `Authorization: Basic base64(projectId:projectSecret)`.
      operationId: patchProjectsByProjectIdSlug
      parameters:
        - name: projectId
          in: path
          required: true
          schema:
            type: string
            format: uuid
            pattern: >-
              ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                projectSlug:
                  type: string
              required:
                - projectSlug
              additionalProperties: false
          application/x-www-form-urlencoded:
            schema:
              type: object
              properties:
                projectSlug:
                  type: string
              required:
                - projectSlug
              additionalProperties: false
          multipart/form-data:
            schema:
              type: object
              properties:
                projectSlug:
                  type: string
              required:
                - projectSlug
              additionalProperties: false
      responses:
        '200':
          description: Response for status 200
          content:
            application/json:
              schema:
                type: object
                properties:
                  succeed:
                    type: boolean
                    const: true
                  data:
                    type: object
                    properties:
                      projectId:
                        type: string
                      projectSlug:
                        type: string
                    required:
                      - projectId
                      - projectSlug
                    additionalProperties: false
                required:
                  - succeed
                  - data
                additionalProperties: false

````