Market Data · x402 · early usage

Munition Google Shopping: x402-paid Google Shopping results for AI agents via Serper

Name: Munition Google Shopping: x402-paid Google Shopping results for AI agents via Serper
Price: 0.004 USD
Availability: InStock

Munition Google Shopping: x402-paid Google Shopping results for AI agents via Serper. Pay 0.004 USDC per query for products with price, seller, rating and link — useful for price comparison and product research.

by api.munition.io · discovered, not yet claimed by its owner · updated 2026-10-08

30d calls2

30d payers2

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Tags: bazaar

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-10-08

Input example from Bazaar metadata

{
  "gl": "us",
  "hl": "en",
  "num": 10,
  "q": "Sony WH-1000XM6"
}

Output example

{
  "meta": {
    "resultCount": 1,
    "searchedAt": "2026-09-09T00:00:00.000Z"
  },
  "query": "Sony WH-1000XM6",
  "shopping": [
    {
      "position": 1,
      "price": "$449.99",
      "rating": 4.7,
      "ratingCount": 1200,
      "source": "Best Buy",
      "title": "Sony WH-1000XM6 Wireless Headphones"
    }
  ]
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/32444.json for the price and payment options.
Pay. Call GET https://api.munition.io/v1/serper/shopping. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Polygon, Arbitrum One, Solana, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.004 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Polygon, Arbitrum One, Solana
Demand: 2 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.004	0x54d6C2C08e10F1a1d3dA88dF513bbE9BCf1A4aFa	300s
exact	Polygon eip155:137	USDC	$0.004	0x54d6C2C08e10F1a1d3dA88dF513bbE9BCf1A4aFa	300s
exact	Arbitrum One eip155:42161	USDC	$0.004	0x54d6C2C08e10F1a1d3dA88dF513bbE9BCf1A4aFa	300s
exact	Solana solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	$0.004	CawPXxATKM9iBPc2o6FRzu9LbvzZWcepD9akwZkbDyDo	300s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x54d6C2C08e10F1a1d3dA88dF513bbE9BCf1A4aFa",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "4000",
    "amountUsd": 0.004,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x54d6C2C08e10F1a1d3dA88dF513bbE9BCf1A4aFa",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "4000",
    "amountUsd": 0.004,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "payTo": "0x54d6C2C08e10F1a1d3dA88dF513bbE9BCf1A4aFa",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "4000",
    "amountUsd": 0.004,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "CawPXxATKM9iBPc2o6FRzu9LbvzZWcepD9akwZkbDyDo",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "4000",
    "amountUsd": 0.004,
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "properties": {
        "meta": {
          "properties": {
            "resultCount": {
              "type": "integer"
            },
            "searchedAt": {
              "format": "date-time",
              "type": "string"
            }
          },
          "required": [
            "resultCount",
            "searchedAt"
          ],
          "type": "object"
        },
        "query": {
          "type": "string"
        },
        "shopping": {
          "items": {
            "properties": {
              "imageUrl": {
                "type": "string"
              },
              "link": {
                "type": "string"
              },
              "position": {
                "type": "integer"
              },
              "price": {
                "type": "string"
              },
              "rating": {
                "type": "number"
              },
              "ratingCount": {
                "type": "integer"
              },
              "source": {
                "type": "string"
              },
              "title": {
                "type": "string"
              }
            },
            "required": [
              "title"
            ],
            "type": "object"
          },
          "type": "array"
        }
      },
      "required": [
        "query",
        "shopping",
        "meta"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "meta": {
      "resultCount": 0,
      "searchedAt": "2026-01-01T00:00:00Z"
    },
    "query": "string",
    "shopping": [
      {
        "imageUrl": "string",
        "link": "string",
        "position": 0,
        "price": "string",
        "rating": 0,
        "ratingCount": 0,
        "source": "string",
        "title": "string"
      }
    ]
  },
  "type": "string"
}

Examples

curl

curl -X POST 'https://api.munition.io/v1/serper/shopping' -H 'Content-Type: application/json' --data '{"gl":"us","hl":"en","num":10,"q":"Sony WH-1000XM6"}'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://api.munition.io/v1/serper/shopping", {
  "method": "POST",
  "headers": {
    "content-type": "application/json"
  },
  "body": "{\"gl\":\"us\",\"hl\":\"en\",\"num\":10,\"q\":\"Sony WH-1000XM6\"}"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
import json
res = httpx.request("POST", "https://api.munition.io/v1/serper/shopping", json=json.loads("{\"gl\":\"us\",\"hl\":\"en\",\"num\":10,\"q\":\"Sony WH-1000XM6\"}"))
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: api.munition.io
Endpoint: https://api.munition.io/v1/serper/shopping
Machine-readable: /resources/32444.json