{"uid":"cap_jeNFy-QyLG9P1OQn8BiQS","slug":"buywith402-product-purchase-37071439","name":"BuyWith402 Product Purchase","description":"BuyWith402 (buywith402.com): buy any product from the catalog with one x402 USDC payment and get an order id with queued fulfillment. Prices are all-inclusive (US shipping and tax included). Browse products free at GET /products (?query=<text> to search); check status at GET /orders/{order_id}. Missing merchandise? POST /merchants with any store URL ($5.00 x402) onboards its catalog within minutes.","url":"https://www.buywith402.com/products/:id/purchase","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$19.86/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"19.86","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"19.86","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lMvi3AhFCLGYUx9ke_JUe","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"19.86","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Purchase a specific product from the BuyWith402 catalog via x402 USDC payment, returning an order ID with queued fulfillment.","exampleAgentPrompt":"Buy 2 of product ID abc123 on BuyWith402 and ship it to Jane Smith at 456 Elm Street, Austin TX 78701 — my email is jane@example.com.","exampleUseCases":null,"resultDescription":"An order ID confirming the purchase was received, with the order queued for fulfillment. The all-inclusive price (US shipping and tax) was charged via a single x402 USDC payment at the time of the call.","failureModes":["Product ID not found — 404 if the :id does not exist in the catalog","Payment failure — x402 payment not completed or insufficient USDC balance","Invalid shipping address — missing required fields (name, address_1, city, state, zip) returns 400","Quantity out of range — quantity below 1 or above 12 returns 400","Invalid email format — returns 400 validation error","Product out of stock — may return 409 or similar if inventory unavailable"],"whenToPreferThis":"Use this endpoint when a user wants to purchase a specific physical product from the BuyWith402 catalog using a single x402 USDC payment with all-inclusive US pricing (shipping and tax included). Prefer this over traditional e-commerce APIs when the agent operates in a crypto-native or x402-enabled payment environment and the user wants frictionless, one-shot checkout without separate tax or shipping calculations.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:36:22.743Z","isFirstParty":false}