> ## Documentation Index > Fetch the complete documentation index at: https://playcamp.io/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create/Update Boost (Sponsor) > User boosts a creator. Works in upsert mode. **How it works:** - No boost → Create new - Already boosting same creator → Return current status - Boosting different creator → Can change after 30-day cooldown - Boost ended → Reactivate Payments made after boosting will be attributed to that creator. ## OpenAPI ````yaml /api_docs/openapi.yaml post /v1/server/sponsors openapi: 3.0.3 info: title: PlayCamp SDK API description: > PlayCamp SDK API - Game analytics and creator campaign integration API ## Required Integration APIs (Server API) 3 APIs that must be integrated for campaign operation: - `POST /v1/server/sponsors` - User boosts a creator - `POST /v1/server/coupons/validate` - Validate coupon code - `POST /v1/server/payments` - Register in-game payment ## Authentication - **Client API**: `Authorization: Bearer {CLIENT_KEY_ID}:{CLIENT_SECRET}` - **Server API**: `Authorization: Bearer {SERVER_KEY_ID}:{SERVER_SECRET}` ## Servers - **Live**: https://sdk-api.playcamp.io (Production data) - **Sandbox**: https://sandbox-sdk-api.playcamp.io (Test data) ## Key Types - **Client Key**: For game client (read-only - campaign, creator queries) - **Server Key**: For game server (read/write - coupon redemption, payment registration, etc.) ## Test Mode (isTest) Before campaign launch, use `isTest: true` parameter to test API integration. - Request parameter validation is performed identically to production - Returns mock data without recording to actual DB - Verify integration in Sandbox environment before campaign launch, then remove `isTest` parameter for actual campaign version: 1.1.0 contact: name: PlayCamp Support servers: - url: https://sdk-api.playcamp.io description: Live Server - url: https://sandbox-sdk-api.playcamp.io description: Sandbox Server - url: http://localhost:3001 description: Local Live Server - url: http://localhost:3003 description: Local Sandbox Server security: [] tags: - name: Health description: Server health check - name: Client Campaign description: Campaign queries (Client API) - name: Client Creator description: Creator queries (Client API) - name: Client Coupon description: Coupon validation (Client API) - name: Client Sponsor description: Boost status queries — Sponsor API (Client API) - name: Server Campaign description: Campaign queries (Server API) - name: Server Creator description: Creator queries (Server API) - name: Server Coupon description: Coupon management (Server API) - name: Server Sponsor description: Boost management — Sponsor API (Server API) - name: Server Payment description: Payment management (Server API) - name: Server Playtime description: Playtime session management (Server API) - name: Server Webhook description: Webhook management (Server API) - name: Server Webview description: WebView management (Server API) paths: /v1/server/sponsors: post: tags: - Server Sponsor summary: Create/Update Boost (Sponsor) description: | User boosts a creator. Works in upsert mode. **How it works:** - No boost → Create new - Already boosting same creator → Return current status - Boosting different creator → Can change after 30-day cooldown - Boost ended → Reactivate Payments made after boosting will be attributed to that creator. operationId: serverCreateSponsor requestBody: required: true content: application/json: schema: type: object required: - userId - creatorKey properties: userId: type: string description: User ID campaignId: type: string description: >- Campaign ID (auto-assigned to active campaign if not specified) creatorKey: type: string pattern: ^[A-Z0-9]{5}$ description: 5-character creator key callbackId: type: string description: >- Webhook tracking ID (included in webhook events triggered by this request) isTest: type: boolean default: false description: Test mode (does not create actual data) responses: '201': description: Success content: application/json: schema: type: object required: - data properties: data: $ref: '#/components/schemas/Sponsor' '400': description: | Bad request - No active campaign - Creator is not participating in the campaign content: application/json: schema: $ref: '#/components/schemas/Error' example: status: 400 error: Bad Request message: No active campaign found code: BAD_REQUEST '401': $ref: '#/components/responses/Unauthorized' '404': description: Creator not found content: application/json: schema: $ref: '#/components/schemas/Error' example: status: 404 error: Not Found message: 'Creator not found: TEST1' code: NOT_FOUND '409': description: Already boosting a creator in this campaign content: application/json: schema: $ref: '#/components/schemas/Error' example: status: 409 error: Conflict message: Already sponsoring a creator in this campaign code: CONFLICT security: - ServerAuth: [] components: schemas: Sponsor: type: object properties: userId: type: string campaignId: type: string creatorKey: type: string isActive: type: boolean sponsoredAt: type: string format: date-time Error: type: object required: - status - error - message - code properties: status: type: integer description: HTTP status code error: type: string description: HTTP status name message: type: string description: Detailed error message code: type: string description: | Error codes: - `VALIDATION_ERROR`: Request parameter validation failed - `BAD_REQUEST`: Invalid request - `UNAUTHORIZED`: Authentication failed (API key error) - `FORBIDDEN`: Access denied - `NOT_FOUND`: Resource not found - `CONFLICT`: Duplicate resource (already exists) - `INTERNAL_ERROR`: Internal server error details: type: array description: Validation error details (for VALIDATION_ERROR) items: type: object properties: path: type: string message: type: string example: status: 404 error: Not Found message: 'Payment not found: txn-12345' code: NOT_FOUND responses: Unauthorized: description: Authentication failed (API key error) content: application/json: schema: $ref: '#/components/schemas/Error' example: status: 401 error: Unauthorized message: Invalid API key code: UNAUTHORIZED securitySchemes: ServerAuth: type: http scheme: bearer description: 'Server API Key (format: {keyId}:{secret})' ````