> ## Documentation Index > Fetch the complete documentation index at: https://www.zinc.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Agent Product Offers > Offers and pricing for a specific product, paid per call via MPP. `GET /agent/products/offers` returns the offers and pricing for a specific product on a retailer (`amazon` or `walmart`). It's the agent-native, MPP-paid counterpart to the authenticated [Get Product Offers](/v2/api-reference/products/get-product-offers) endpoint. No Zinc account is required. Each call is paid per request via the [Machine Payments Protocol (MPP)](/v2/mpp). ## Pricing | | | | ----------- | ---------------------------------------- | | **Price** | \$0.01 per call (fixed) | | **Payment** | MPP (HTTP 402 challenge-credential flow) | | **Account** | Not required | ## Caching and freshness Retailer data is cached. Use these optional query parameters to control freshness: * **`max_age`** — accept a cached response only if it is no older than this many seconds. * **`newer_than`** — accept a cached response only if it was retrieved at or after this Unix timestamp. * **`async`** — return immediately with `status: "processing"` instead of waiting for a fresh fetch. Poll again to retrieve the completed result. ## 402 Payment Required If no valid payment credential is provided, the API returns `402 Payment Required` with one `WWW-Authenticate` header per payable method (per RFC 9110 §11.6.1). Your MPP client uses these to complete payment and resubmit the request. See the [MPP guide](/v2/mpp) for details. ## OpenAPI ````yaml versions/latest.json GET /agent/products/offers openapi: 3.1.0 info: title: Zinc summary: >- Zinc lets you search, buy, and return items from top online retailers with a single API. description: >- Search, buy, and return items from top online retailers with a single API. Supports AI agent ordering via MPP (HTTP 402) — no account required. Supported retailers include 1-800-Flowers, Ace Hardware, Amazon, Amazon DE, Best Buy, Lowe's, Partstown, Pokémon Center, Target, The Home Depot, Walmart, Wayfair, and 2 more. Ships to the US and 1 other country (DE). version: '2026-07-10' x-logo: url: https://mintlify.s3.us-west-1.amazonaws.com/zinc/logo/light.png contact: name: Zinc API Support email: support@zinc.com url: https://zinc.com/docs x-guidance: >- Zinc lets AI agents buy products from online retailers via a single API. Use POST /agent/orders to place an order — no Zinc account needed, payment is handled via MPP (HTTP 402 flow). Provide a product URL from a supported retailer, a shipping address, and max_price in cents. The API charges max_price + $1 API fee upfront and refunds the difference on completion. To find products first, the /agent/* data endpoints (search, products/search, products/offers, products/details) are MPP-paid at $0.01 per call; /agent/search returns orderable URLs to feed straight into /agent/orders. GET /retailers lists supported retailers for free (no payment or account). Authenticated equivalents (orders, products, managed-accounts) require a Bearer token (API key prefixed zn_). Docs: https://zinc.com/docs Supported retailers include 1-800-Flowers, Ace Hardware, Amazon, Amazon DE, Best Buy, Lowe's, Partstown, Pokémon Center, Target, The Home Depot, Walmart, Wayfair, and 2 more, shipping to the US and 1 other country (DE). x-supported-retailers: - 1-800-Flowers - Ace Hardware - Amazon - Amazon DE - Best Buy - Lowe's - Partstown - Pokémon Center - Target - The Home Depot - Walmart - Wayfair - Zinc - eBay x-supported-countries: - US - DE servers: - url: https://api.zinc.com description: Production security: - BearerAuth: [] paths: /agent/products/offers: get: tags: - agent summary: Agent Product Offers description: Offers/pricing for a specific product on a retailer. operationId: agent_product_offers_agent_products_offers_get parameters: - name: product_id in: query required: true schema: type: string description: Product identifier (e.g. ASIN) title: Product Id description: Product identifier (e.g. ASIN) - name: retailer in: query required: true schema: type: string enum: - amazon - walmart description: 'Retailer: amazon or walmart' - name: max_age in: query required: false schema: anyOf: - type: integer - type: 'null' description: Max response age in seconds title: Max Age description: Max response age in seconds - name: newer_than in: query required: false schema: anyOf: - type: integer - type: 'null' description: Minimum retrieval timestamp title: Newer Than description: Minimum retrieval timestamp - name: async in: query required: false schema: anyOf: - type: boolean - type: 'null' description: Return immediately with status=processing title: Async description: Return immediately with status=processing - name: authorization in: header required: false schema: anyOf: - type: string - type: 'null' title: Authorization responses: '200': description: Successful Response content: application/json: schema: title: Response Agent Product Offers Agent Products Offers Get '402': description: Payment required — returns an MPP challenge for each payable method headers: WWW-Authenticate: description: >- One header per payable method with challenge parameters (per RFC 9110 §11.6.1) schema: type: string '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' security: [] components: schemas: HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError securitySchemes: BearerAuth: type: apiKey in: header name: Authorization description: Zinc API key (Bearer zn_...) ````