> ## 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. # Update Project Settings > Update an existing project's AI model preferences, TTS provider, translation memory / MT profile assignment, and sharing visibility. The endpoint is partial: only fields present in the body are written, so a single field can be changed without resending the rest. Authorization is restricted to the project owner and other accounts in the same organization. ## OpenAPI ````yaml /openapi/phrase-studio.json patch /v1/projects/{id} openapi: 3.0.3 info: title: Studio API description: >- API for creating projects and reading transcription, translation, and dubbing results. version: 1.0.0 servers: - url: https://api.studio.us.phrase.com description: Production US Environment - url: https://api.studio.eu.phrase.com description: Production EU Environment security: [] tags: - name: Projects description: Manage transcription, translation, and dubbing projects - name: Recordings description: Access recording status and output data - name: Subtitle Profiles description: Manage subtitle formatting profiles - name: Pronunciations description: Manage custom pronunciation rules - name: Glossaries description: Manage translation glossaries - name: Insights description: Manage AI-powered insight prompts - name: Safe Communications description: Access safe communication evaluation templates - name: Subtitles description: Write subtitle segments for a recording paths: /v1/projects/{id}: patch: tags: - Projects summary: Update Project Settings description: >- Update an existing project's AI model preferences, TTS provider, translation memory / MT profile assignment, and sharing visibility. The endpoint is partial: only fields present in the body are written, so a single field can be changed without resending the rest. Authorization is restricted to the project owner and other accounts in the same organization. operationId: updateProject parameters: - name: id in: path required: true description: Project ID schema: type: string requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/UpdateProjectRequest' examples: assign_translation_resources: summary: Assign a translation memory and MT profile value: translationMemoryId: tm-uid-123 mtProfileId: mt-profile-uid-456 switch_tts_provider: summary: Change the TTS provider used for dubbing value: ttsProvider: eleven_v3 change_translation_model: summary: Change the AI translation model value: translationModelType: GPT translationModelName: gpt-5-mini share_project: summary: Mark the project as shared (visible to the API key owner) value: isPublic: true responses: '200': description: Project updated successfully '400': description: Bad Request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: bad_request: summary: Bad Request value: success: false statusCode: 400 message: Bad Request timestamp: '2025-01-01T00:00:00.000Z' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: unauthorized: summary: Unauthorized value: success: false statusCode: 401 message: Unauthorized timestamp: '2025-01-01T00:00:00.000Z' '404': description: Project not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: project_not_found: summary: Project not found value: success: false statusCode: 404 message: Project not found timestamp: '2025-01-01T00:00:00.000Z' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: internal_server_error: summary: Internal server error value: success: false statusCode: 500 message: Internal server error timestamp: '2025-01-01T00:00:00.000Z' security: - apiKeyAuth: [] components: schemas: UpdateProjectRequest: type: object description: >- Partial update payload for project preferences and visibility. Only fields present in the body are applied; omitted fields are preserved. properties: chatModelType: type: string enum: - GPT - CUSTOM description: AI model provider type for chat chatModelName: type: string enum: - gpt-5-mini - gpt-4o-mini - plai - aita description: AI model identifier for chat insightsModelType: type: string enum: - GPT - CUSTOM description: AI model provider type for insights insightsModelName: type: string enum: - gpt-5-mini - gpt-4o-mini - plai - aita description: AI model identifier for insights translationModelType: type: string enum: - GPT - CUSTOM description: AI model provider type for translation translationModelName: type: string enum: - gpt-5-mini - gpt-4o-mini - plai - aita description: AI model identifier for translation ttsProvider: type: string enum: - eleven_v2 - eleven_v3 - azure_tts description: Text-to-speech provider for dubbing mtProfileId: type: string minLength: 1 description: Machine translation profile identifier (TMS UID) translationMemoryId: type: string minLength: 1 description: Translation memory identifier (TMS UID) isPublic: type: boolean description: >- When true, the project is shared so it can be accessed by the API key owner. When false, that share is revoked. additionalProperties: false ErrorResponse: type: object properties: success: type: boolean example: false statusCode: type: integer example: 400 message: type: string example: Bad Request timestamp: type: string format: date-time example: '2025-01-01T00:00:00.000Z' required: - success - statusCode - message - timestamp securitySchemes: apiKeyAuth: type: apiKey in: header name: X-API-Key ````