Roundhouse

serp402

Walmart: Product titles, descriptions, prices, IDs and more. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners.

SearchUnknowneip155:8453Exactvia cdp
https://serp402.com/api/v1/walmart-search
CommerceWalmartSearchx402Agents
Settlements · 30d
499↓ 47%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$9.38
Verified settled volume
506 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-26 15:37Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0xAA12…DC56d. The signed payment is good for 2 minutes.

Paid to
0xAA12…DC56d
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
50000 smallest units
50000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
6srFz6…DCvbK
Token contract
EPjFWd…TDt1v
Payment window
2 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
    },
    "payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
    "amount": "50000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "query": "bread"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "meta": {
            "latencyMs": 1400
          },
          "endpoint": "walmart-search"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "query"
              ],
              "properties": {
                "page": {
                  "type": "string",
                  "description": "Value is used to get the items on a specific page. (e.g., 1 (default) is the first page of results, 2 is the 2nd page of results, 3 is the 3rd page of…"
                },
                "sort": {
                  "type": "string",
                  "description": "sorting. (e.g. price_low , price_high , best_seller , best_match , rating_high , new ). Note: best_seller , rating_high , and new are not supported for…"
                },
                "facet": {
                  "type": "string",
                  "description": "items filtering based on their attributes. The structure is a list of key:value pairs separated by . The key and value are separated by :"
                },
                "nd_en": {
                  "type": "string",
                  "description": "Show results with NextDay delivery only. Set to true to enable or false (default) to disable. Note: not supported for walmart.com.mx ."
                },
                "query": {
                  "type": "string",
                  "description": "search query. You can use anything that you would use in a regular Walmart search. Either a query or a cat_id parameter is required."
                },
                "cat_id": {
                  "type": "string",
                  "description": "Category on Walmart Search. (e.g. 0 (default) is all departments, 976759_976787 is 'Cookies', etc.). Either a query or a cat_id parameter is required. Note:…"
                },
                "device": {
                  "type": "string",
                  "description": "device to use to get the results. It can be set to desktop (default) to use a regular browser, tablet to use a tablet browser (currently using iPads), or…"
                },
                "spelling": {
                  "type": "string",
                  "description": "Activate spelling fix. true (default) includes spelling fix, false searches without spelling fix."
                },
                "store_id": {
                  "type": "string",
                  "description": "Store ID to filter the products by the specific store only. Head to the Walmart Stores Locations for a full list of supported stores. It's possible for the…"
                },
                "max_price": {
                  "type": "string",
                  "description": "Upper bound of price range query."
                },
                "min_price": {
                  "type": "string",
                  "description": "Lower bound of price range query."
                },
                "soft_sort": {
                  "type": "string",
                  "description": "Parameter enables sort by relevance. Walmart is by default showing results sorted by relevance and using the sort option. Set to false to disable sort by…"
                },
                "walmart_domain": {
                  "type": "string",
                  "description": "Walmart domain to use. It defaults to walmart.com . Head to the Walmart Stores for a full list of supported stores per domain."
                },
                "include_filters": {
                  "type": "string",
                  "description": "Include filters to the JSON response. Set to true to enable or false to disable (default)."
                }
              },
              "additionalProperties": true
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "meta": {
                  "type": "object",
                  "description": "How long the call took."
                },
                "paid": {
                  "type": "object",
                  "description": "The settled transaction and network."
                },
                "endpoint": {
                  "type": "string",
                  "description": "Which endpoint answered."
                },
                "attribution": {
                  "type": "object",
                  "description": "Where the data comes from and what was done to it. Keep it with the results if you pass them on."
                }
              },
              "description": "Walmart results as structured JSON. The shape follows the source, so fields differ between endpoints; identifiers and routing belonging to the collection layer are stripped.",
              "additionalProperties": true
            }
          }
        }
      }
    }
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "format": "eip712",
          "payload": {
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
            "amount": "50000",
            "scheme": "exact",
            "network": "eip155:8453",
            "version": 1,
            "validUntil": 1793029140,
            "resourceUrl": "https://serp402.com/api/v1/walmart-search"
          },
          "signature": "0x215ebbf76f4eafea61e57d1a7707ecd899e5f1e43e37444fcda7865633d918e91585455eea2421795418286d5b78d785258086807d4622da3c3ec0ee617f63f11c",
          "acceptIndex": 0
        },
        {
          "format": "eip712",
          "payload": {
            "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
            "payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
            "amount": "50000",
            "scheme": "exact",
            "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
            "version": 1,
            "validUntil": 1793029140,
            "resourceUrl": "https://serp402.com/api/v1/walmart-search"
          },
          "signature": "0x5ff25b55f4768c4d957e7102f69859bfff195df291d2815e4ace0ee8bd3e1f126a1a191f1843fc8fd90c8d4ff66e9de7e7c78d301b98b7ff0182d0c550a050e71b",
          "acceptIndex": 1
        }
      ]
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "offers"
      ],
      "properties": {
        "offers": {
          "type": "array",
          "items": {
            "type": "object",
            "required": [
              "format",
              "signature"
            ],
            "properties": {
              "format": {
                "type": "string"
              },
              "payload": {
                "type": "object",
                "required": [
                  "version",
                  "resourceUrl",
                  "scheme",
                  "network",
                  "asset",
                  "payTo",
                  "amount"
                ],
                "properties": {
                  "asset": {
                    "type": "string"
                  },
                  "payTo": {
                    "type": "string"
                  },
                  "amount": {
                    "type": "string"
                  },
                  "scheme": {
                    "type": "string"
                  },
                  "network": {
                    "type": "string"
                  },
                  "version": {
                    "type": "integer"
                  },
                  "validUntil": {
                    "type": "integer"
                  },
                  "resourceUrl": {
                    "type": "string"
                  }
                }
              },
              "signature": {
                "type": "string"
              },
              "acceptIndex": {
                "type": "integer"
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-26 15:37Z
Last indexed by Roundhouse
2026-10-27 01:40Z
Last enriched (probe, favicon, geo)
—
x402 version
2
Max timeout
120s
Liveness probe
Not probed
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service serp402 and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=serp402'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://serp402.com/api/v1/walmart-search, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.