openapi: 3.1.0 info: title: Wayfair Supplier Authentication API description: GraphQL-based API for Wayfair suppliers to manage orders, inventory, product catalogs, shipping notifications, and more. This OpenAPI specification documents the REST-style token endpoint and the GraphQL endpoint used by suppliers to interact with the Wayfair platform. Wayfair's federated GraphQL architecture allows suppliers to request only the data they need across 10,000+ supplier integrations. version: 1.0.0 contact: name: Wayfair Developer Support url: https://developer.wayfair.com/docs/ license: name: Proprietary url: https://www.wayfair.com/terms-of-use x-last-validated: '2026-05-03' servers: - url: https://api.wayfair.com/v1 description: Production - url: https://sandbox.api.wayfair.com/v1 description: Sandbox tags: - name: Authentication description: Token-based authentication for API access. paths: /auth/token: post: operationId: getAccessToken summary: Wayfair Get Access Token description: Obtain a temporary OAuth2 access token using your application client ID and secret. Tokens are used to authenticate subsequent API requests. Tokens expire and must be refreshed periodically. tags: - Authentication requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/TokenRequest' examples: GetAccessTokenRequestExample: summary: Default getAccessToken request x-microcks-default: true value: client_id: your-client-id-here client_secret: your-client-secret-here responses: '200': description: Access token returned successfully. content: application/json: schema: $ref: '#/components/schemas/TokenResponse' examples: GetAccessToken200Example: summary: Default getAccessToken 200 response x-microcks-default: true value: access_token: eyJhbGciOiJSUzI1NiJ9.example.token token_type: Bearer expires_in: 3600 '401': description: Invalid credentials. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: GetAccessToken401Example: summary: Default getAccessToken 401 response x-microcks-default: true value: error: invalid_client error_description: Client authentication failed. x-microcks-operation: delay: 0 dispatcher: FALLBACK components: schemas: TokenResponse: type: object properties: access_token: type: string description: JWT bearer token for subsequent API requests. example: eyJhbGciOiJSUzI1NiJ9.example.token token_type: type: string description: Token type, always "Bearer". example: Bearer expires_in: type: integer description: Token expiration time in seconds. example: 3600 ErrorResponse: type: object properties: error: type: string description: Error code. example: unauthorized error_description: type: string description: Human-readable error description. example: Invalid or expired access token. TokenRequest: type: object required: - client_id - client_secret properties: client_id: type: string description: The application client ID issued by Wayfair. example: your-client-id-here client_secret: type: string description: The application client secret issued by Wayfair. example: your-client-secret-here securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: 'OAuth2 Bearer token obtained from the /auth/token endpoint. Include as Authorization: Bearer {token} header on all GraphQL requests.'