openapi: 3.0.1 info: title: MarketMan API V3 Accounts Items API description: 'MarketMan provides a JSON REST API for integration with third-party applications such as accounting, ERP, e-commerce, and self-service portals. The V3 API exposes separate Buyer and Vendor surfaces for inventory, items, vendors, purchase orders, invoices/docs, deliveries, recipes/menu costing, POS sales, and webhooks. All operations are HTTP POST that accept and return JSON. Authentication is token-based: call /v3/buyers/auth/GetToken (or the vendor equivalent) with an APIKey and APIPassword to obtain a Token, then send that token on every subsequent request in the AUTH_TOKEN header. Endpoints, request fields, and response shapes here reflect the publicly published MarketMan API V3 Postman documentation; field-level detail not documented publicly is left unconstrained.' termsOfService: https://www.marketman.com/ contact: name: MarketMan url: https://www.marketman.com/ version: '3.0' servers: - url: https://api.marketman.com/v3 description: MarketMan API V3 production base URL security: - AuthToken: [] tags: - name: Items description: Vendors connected to a buyer account. paths: /buyers/items/GetVendors: post: operationId: getVendors tags: - Items summary: Get vendors connected to a buyer requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/BuyerRequest' responses: '200': description: Vendors connected to the buyer account. content: application/json: schema: $ref: '#/components/schemas/VendorsResponse' components: schemas: VendorsResponse: type: object properties: Vendors: type: array items: type: object IsSuccess: type: boolean BuyerRequest: type: object required: - BuyerGuid properties: BuyerGuid: type: string description: GUID identifying the buyer account to operate on. securitySchemes: AuthToken: type: apiKey in: header name: AUTH_TOKEN description: Access token returned by GetToken, sent on every authenticated request in the AUTH_TOKEN header.