> ## 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. > ## Agent Instructions > Use Stable documentation by default. Honor an explicit Beta request or a URL under /docs/beta/. If the requested version conflicts with the installed CLI package or API origin, clarify the target before writing integration code. > Pages under /docs/beta/ document Beta; other product pages document Stable. Keep the CLI package, commands, API origin, and credentials within the selected version. State the documentation version in your answer. > For MCP search, always pass version: Stable or version: Beta. Unfiltered search mixes both versions. For filesystem reads, keep Beta queries under /beta/ and exclude /beta/ from Stable queries; discover paths before reading them. > The public docs base is https://photon.codes/docs. Convert MCP page paths to public URLs under that base, preserving /beta/ when present. Read https://photon.codes/docs/skill.md for version selection and https://photon.codes/docs/llms.txt for the version indexes. # List project lines > Returns only **dedicated** phone lines the project owns across all platforms. Use the optional `platform` query parameter to filter to a single platform. On iMessage Free or Pro plans, lines are assigned per-user rather than dedicated to the project — for those cases, redirect users via `GET /users/{userId}/redirect` instead. Requires Authorization: Basic base64(projectId:projectSecret). ## OpenAPI ````yaml https://spectrum.photon.codes/openapi/json get /projects/{projectId}/lines/ 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}/lines/: get: tags: - lines summary: List project lines description: >- Returns only **dedicated** phone lines the project owns across all platforms. Use the optional `platform` query parameter to filter to a single platform. On iMessage Free or Pro plans, lines are assigned per-user rather than dedicated to the project — for those cases, redirect users via `GET /users/{userId}/redirect` instead. Requires Authorization: Basic base64(projectId:projectSecret). operationId: getProjectsByProjectIdLines 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)$ - name: platform in: query required: false schema: type: string enum: - imessage - whatsapp_business - voice - slack responses: '200': description: Response for status 200 content: application/json: schema: type: object properties: succeed: type: boolean const: true data: type: object properties: lines: type: array items: oneOf: - type: object properties: platform: type: string const: imessage id: 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)$ phoneNumber: type: string profile: type: object properties: firstName: anyOf: - type: string - type: 'null' lastName: anyOf: - type: string - type: 'null' avatarUrl: anyOf: - type: string - type: 'null' required: - firstName - lastName - avatarUrl additionalProperties: false status: type: string enum: - available - unavailable - unknown createdAt: type: string required: - platform - id - phoneNumber - profile - status - createdAt additionalProperties: false - oneOf: - type: object properties: platform: type: string const: whatsapp_business state: type: string const: registered id: 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)$ phoneNumberId: type: string displayPhoneNumber: anyOf: - type: string - type: 'null' verifiedName: anyOf: - type: string - type: 'null' qualityRating: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' codeVerificationStatus: anyOf: - type: string - type: 'null' wabaId: type: string businessName: anyOf: - type: string - type: 'null' createdAt: type: string required: - platform - state - id - phoneNumberId - displayPhoneNumber - verifiedName - qualityRating - status - codeVerificationStatus - wabaId - businessName - createdAt additionalProperties: false - type: object properties: platform: type: string const: whatsapp_business state: type: string const: pending phoneNumberId: type: string displayPhoneNumber: anyOf: - type: string - type: 'null' registrationState: type: string enum: - registering - failed errorCode: anyOf: - type: string - type: 'null' errorMessage: anyOf: - type: string - type: 'null' createdAt: type: string required: - platform - state - phoneNumberId - displayPhoneNumber - registrationState - errorCode - errorMessage - createdAt additionalProperties: false required: - lines additionalProperties: false required: - succeed - data additionalProperties: false ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.