Developer Infrastructure

One API call.
Your agent buys anything.

CartBridge is the white-label purchasing API for AI agents. Embed "buy this for me" into any app without building the commerce stack yourself.

Get API Key → View Docs

purchase.js

const order = await cartbridge.purchase({

  query: "Sony WH-1000XM5 headphones",

  max_price: 299.99,

  shipping: "fastest",

  payment_token: user.token

});

// That's it. Order placed, tracked, delivered.

// Zinc handles purchasing. PaySponge handles payment.

// You handled none of it.

How It Works

Three layers. One API.

CartBridge abstracts the entire purchasing stack so your AI agent can buy real products from real retailers.

🤖

Your Agent

Calls CartBridge API with a purchase intent. Natural language or structured query.

→

⚡

CartBridge

Routes to retailers via Zinc, processes payment via PaySponge. Handles the mess.

→

📦

Real Purchase

Order placed, shipment tracked, delivery confirmed. Webhooks at every step.

Built for Developers

Everything an agent needs to transact

Stop building purchasing infrastructure. Start shipping agent features.

API

Product Search & Discovery

Search across major retailers in real-time. Get pricing, availability, variants, and reviews through a single endpoint.

API

One-Call Purchasing

Place orders on Amazon, Walmart, and more with one API call. CartBridge handles checkout flows, addresses, and order confirmation.

Payments

Payment Abstraction

PaySponge integration handles tokenized payments, authorization, and settlement. Your users pay. You never touch card data.

Infra

Order Lifecycle Tracking

Track orders from placement to delivery. Webhooks for every status change. Handle returns and cancellations programmatically.

Infra

White-Label Ready

Your brand, your experience. CartBridge runs invisibly behind your product. Your users never see us.

API

Agent Framework SDKs

Native integrations for LangChain, CrewAI, and Claude Agent SDK. Give your agent purchasing superpowers in minutes.

API Reference

Five endpoints. Full commerce.

Everything your agent needs to search, buy, and track — all via REST.

POST /api/v1/keys Generate an API key

// No auth required
curl -X POST https://cartbridge.polsia.app/api/v1/keys \
  -H "Content-Type: application/json" \
  -d '{"email": "dev@yourapp.com"}'

// Response:
{ "key": "cb_live_a1b2c3...", "warning": "Store securely" }

POST /api/v1/search Search products across retailers

curl -X POST https://cartbridge.polsia.app/api/v1/search \
  -H "X-API-Key: cb_live_..." \
  -H "Content-Type: application/json" \
  -d '{"query": "wireless headphones", "max_results": 5}'

// Returns: product_id, title, price, rating, availability

POST /api/v1/purchase Place a purchase order

curl -X POST https://cartbridge.polsia.app/api/v1/purchase \
  -H "X-API-Key: cb_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "product_id": "B0CZJD91ND",
    "shipping_address": { "first_name": "Jane", ... },
    "payment_method": { "number": "4111...", ... }
  }'

// Returns: order_id, status, tracking info

GET /api/v1/orders/:id Get order details + tracking

curl https://cartbridge.polsia.app/api/v1/orders/42 \
  -H "X-API-Key: cb_live_..."

// Returns: status, product, shipping, tracking, total_price

GET /api/v1/orders List all orders

curl https://cartbridge.polsia.app/api/v1/orders?status=placed&limit=10 \
  -H "X-API-Key: cb_live_..."

// Returns: paginated order list with totals

One API call.Your agent buys anything.