402Shelf
Search live products across online retailers by keyword and price range. Returns product names, prices, retailers, and direct purchase links. Use when an agent needs current shopping options or price-filtered product recommendations.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
Pay 0.001 USDC on Base to 0xdcdf…15caE. The signed payment is good for 5 minutes.
- Paid to
- 0xdcdf…15caE
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "authorization",
"assetTransferMethod": "eip3009"
},
"payTo": "0xdcdf184A64f6489Ec5304750a0AF157440115caE",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"sort": "best_match",
"query": "wireless headphones",
"country": "US",
"currency": "USD",
"max_price": 100,
"result_limit": 1
}
},
"price": "$0.001",
"output": {
"type": "json",
"example": {
"sort": {
"scope": "retrieved_results",
"requested": "best_match",
"applied_at": "upstream",
"upstream_order_valid": null
},
"query": "wireless headphones",
"source": {
"engine": "google_shopping",
"provider": "searchapi",
"result_set": "shopping_results",
"location_used": "United States"
},
"country": "US",
"results": [
{
"price": 99.99,
"title": "Soundcore by Anker Space One Wireless Adaptive Noise Cancelling Over-the-Ear Headphones",
"rating": 4.4,
"currency": "USD",
"retailer": "Best Buy",
"condition": null,
"image_url": "https://encrypted-tbn2.gstatic.com/shopping?q=tbn:ANd9GcTk5WIRStHqQMqSTyxqxEB8gt1Nq7gaZ-5nhRLrKpCm8q1pZjEY1C3OtYJQ0cffpD_pJuA57rUPvUs7UQ9z8-wRw7uYOPtNMgcyRGCKvMKj8vzug-naMylfeg",
"product_url": "https://www.google.com/search?ibp=oshop&q=wireless+headphones&prds=catalogid:7204254901795972443,gpcid:15067150910709890119,headlineOfferDocid:5243702224454842866,imageDocid:15025541689179028030,pvo:25,pvt:hg&gl=us&hl=en&udm=28",
"availability": {
"text": null,
"source": null,
"status": "unknown"
},
"review_count": 633,
"currency_source": "country_context",
"source_position": 1
}
],
"currency": "USD",
"limitations": [
"Only organic products from one Google Shopping response are included.",
"Availability is unverified; search inclusion does not establish stock.",
"Prices may exclude shipping and taxes; installment and ambiguous prices are not compared.",
"USD was inferred from dollar price symbols and explicit US localization; product currency_source identifies these values.",
"Local filters excluded products with incompatible, unknown, or out-of-range values."
],
"result_count": 1,
"result_limit": 1,
"retrieved_at": "2026-09-20T16:10:15.648486+00:00",
"applied_filters": {
"country": {
"value": "US",
"location": "United States",
"applied_at": "upstream"
},
"currency": {
"value": "USD",
"applied_at": "local",
"excludes_unknown": true
},
"condition": null,
"max_price": {
"value": 100,
"applied_at": "upstream_and_local"
},
"min_price": null
},
"currency_source": "request"
}
},
"network": "eip155:8453",
"limitations": [
"One retrieved organic result set; sorting is not market-wide.",
"Availability is unverified. Prices may exclude tax/shipping; installments are not compared.",
"Only used condition is supported. Currency is never converted; unknown/incompatible prices are excluded when compared.",
"HTTP 200, including zero results, is payable; failed searches do not settle.",
"A successful provider call can be billed even if later settlement fails.",
"Settlement awaiting chain confirmation returns 503; do not automatically pay again. Identical settled responses are retained for 24 hours."
]
},
"schema": {
"type": "object",
"$defs": {
"codes0": {
"enum": [
"AE",
"AI",
"AR",
"AT",
"AU",
"AW",
"BE",
"BM",
"BR",
"CA",
"CC",
"CH",
"CL",
"CO",
"CX",
"CZ",
"DE",
"DK",
"ES",
"FI",
"FK",
"FR",
"GB",
"GF",
"GP",
"GR",
"GS",
"HK",
"HM",
"HU",
"ID",
"IE",
"IL",
"IN",
"IO",
"IT",
"JP",
"KR",
"KY",
"MQ",
"MS",
"MX",
"MY",
"NC",
"NF",
"NL",
"NO",
"NZ",
"PF",
"PH",
"PL",
"PM",
"PT",
"RE",
"RO",
"RU",
"SA",
"SE",
"SG",
"SK",
"TC",
"TF",
"TH",
"TK",
"TR",
"TW",
"UA",
"US",
"VG",
"VN",
"WF",
"YT",
"ZA"
]
},
"codes1": {
"enum": [
"AED",
"AFN",
"ALL",
"AMD",
"AOA",
"ARS",
"AUD",
"AWG",
"AZN",
"BAM",
"BBD",
"BDT",
"BHD",
"BIF",
"BMD",
"BND",
"BOB",
"BOV",
"BRL",
"BSD",
"BTN",
"BWP",
"BYN",
"BZD",
"CAD",
"CDF",
"CHE",
"CHF",
"CHW",
"CLF",
"CLP",
"CNY",
"COP",
"COU",
"CRC",
"CUP",
"CVE",
"CZK",
"DJF",
"DKK",
"DOP",
"DZD",
"EGP",
"ERN",
"ETB",
"EUR",
"FJD",
"FKP",
"GBP",
"GEL",
"GHS",
"GIP",
"GMD",
"GNF",
"GTQ",
"GYD",
"HKD",
"HNL",
"HTG",
"HUF",
"IDR",
"ILS",
"INR",
"IQD",
"IRR",
"ISK",
"JMD",
"JOD",
"JPY",
"KES",
"KGS",
"KHR",
"KMF",
"KPW",
"KRW",
"KWD",
"KYD",
"KZT",
"LAK",
"LBP",
"LKR",
"LRD",
"LSL",
"LYD",
"MAD",
"MDL",
"MGA",
"MKD",
"MMK",
"MNT",
"MOP",
"MRU",
"MUR",
"MVR",
"MWK",
"MXN",
"MXV",
"MYR",
"MZN",
"NAD",
"NGN",
"NIO",
"NOK",
"NPR",
"NZD",
"OMR",
"PAB",
"PEN",
"PGK",
"PHP",
"PKR",
"PLN",
"PYG",
"QAR",
"RON",
"RSD",
"RUB",
"RWF",
"SAR",
"SBD",
"SCR",
"SDG",
"SEK",
"SGD",
"SHP",
"SLE",
"SOS",
"SRD",
"SSP",
"STN",
"SVC",
"SYP",
"SZL",
"THB",
"TJS",
"TMT",
"TND",
"TOP",
"TRY",
"TTD",
"TWD",
"TZS",
"UAH",
"UGX",
"USD",
"USN",
"UYI",
"UYU",
"UYW",
"UZS",
"VED",
"VES",
"VND",
"VUV",
"WST",
"XAD",
"XAF",
"XAG",
"XAU",
"XBA",
"XBB",
"XBC",
"XBD",
"XCD",
"XCG",
"XDR",
"XOF",
"XPD",
"XPF",
"XPT",
"XSU",
"XUA",
"YER",
"ZAR",
"ZMW",
"ZWG"
]
},
"priceFilter": {
"anyOf": [
{
"type": "object",
"required": [
"value",
"applied_at"
],
"properties": {
"value": {
"type": "number",
"maximum": 1000000000,
"minimum": 0
},
"applied_at": {
"enum": [
"local",
"upstream_and_local"
]
}
},
"additionalProperties": false
},
{
"type": "null"
}
]
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"query",
"country"
],
"properties": {
"sort": {
"enum": [
"best_match",
"price_low_to_high",
"rating_high_to_low"
],
"type": "string",
"examples": [
"best_match"
],
"description": "best_match (default), price_low_to_high or rating_high_to_low; retrieved set only."
},
"query": {
"type": "string",
"examples": [
"wireless headphones"
],
"maxLength": 500,
"minLength": 1,
"description": "Product search terms; required, 1-500 characters."
},
"country": {
"$ref": "#/$defs/codes0",
"type": "string",
"examples": [
"US"
],
"description": "Required supported two-letter country code; selects Google Shopping location."
},
"currency": {
"$ref": "#/$defs/codes1",
"type": "string",
"examples": [
"USD"
],
"description": "Optional ISO currency filter. No conversion; defaults to the country currency."
},
"condition": {
"enum": [
"used"
],
"type": "string",
"examples": [
"used"
],
"description": "Only used is supported. Omit for any condition; stock remains unverified."
},
"max_price": {
"type": "number",
"maximum": 1000000000,
"minimum": 0,
"examples": [
100
],
"description": "Inclusive maximum comparable product price; must be at least min_price."
},
"min_price": {
"type": "number",
"maximum": 1000000000,
"minimum": 0,
"examples": [
25
],
"description": "Inclusive minimum comparable product price; excludes tax and shipping."
},
"result_limit": {
"type": "integer",
"maximum": 20,
"minimum": 1,
"examples": [
1
],
"description": "Maximum returned products, 1-20; default 10. Zero results is a payable success."
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"query",
"country",
"currency",
"currency_source",
"applied_filters",
"sort",
"result_limit",
"results",
"result_count",
"retrieved_at",
"source",
"limitations"
],
"properties": {
"sort": {
"type": "object",
"required": [
"requested",
"applied_at",
"scope",
"upstream_order_valid"
],
"properties": {
"scope": {
"enum": [
"retrieved_results"
]
},
"requested": {
"enum": [
"best_match",
"price_low_to_high",
"rating_high_to_low"
]
},
"applied_at": {
"enum": [
"upstream",
"local",
"upstream_and_local"
]
},
"upstream_order_valid": {
"anyOf": [
{
"type": "boolean"
},
{
"type": "null"
}
]
}
},
"additionalProperties": false
},
"query": {
"type": "string",
"maxLength": 500
},
"source": {
"type": "object",
"required": [
"provider",
"engine",
"result_set",
"location_used"
],
"properties": {
"engine": {
"enum": [
"google_shopping"
]
},
"provider": {
"enum": [
"searchapi",
"fixture"
]
},
"result_set": {
"enum": [
"shopping_results"
]
},
"location_used": {
"anyOf": [
{
"type": "string",
"maxLength": 300
},
{
"type": "null"
}
]
}
},
"description": "Search provider, engine, result set and location.",
"additionalProperties": false
},
"country": {
"$ref": "#/$defs/codes0"
},
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"title",
"price",
"currency",
"currency_source",
"retailer",
"product_url",
"image_url",
"rating",
"review_count",
"condition",
"availability",
"source_position"
],
"properties": {
"price": {
"anyOf": [
{
"type": "number",
"maximum": 1000000000000000,
"minimum": 0
},
{
"type": "null"
}
],
"description": "Numeric price, or null; may exclude tax/shipping."
},
"title": {
"anyOf": [
{
"type": "string",
"maxLength": 1000
},
{
"type": "null"
}
]
},
"rating": {
"anyOf": [
{
"type": "number",
"maximum": 5,
"minimum": 0
},
{
"type": "null"
}
]
},
"currency": {
"anyOf": [
{
"$ref": "#/$defs/codes1"
},
{
"type": "null"
}
]
},
"retailer": {
"anyOf": [
{
"type": "string",
"maxLength": 300
},
{
"type": "null"
}
],
"description": "Reported retailer name, or null."
},
"condition": {
"anyOf": [
{
"type": "string",
"maxLength": 100
},
{
"type": "null"
}
]
},
"image_url": {
"anyOf": [
{
"type": "string",
"format": "uri",
"pattern": "^https?://",
"maxLength": 4096
},
{
"type": "null"
}
]
},
"product_url": {
"anyOf": [
{
"type": "string",
"format": "uri",
"pattern": "^https?://",
"maxLength": 4096
},
{
"type": "null"
}
],
"description": "Actual source link; may be Google Shopping, not a retailer checkout URL."
},
"availability": {
"type": "object",
"required": [
"status",
"source",
"text"
],
"properties": {
"text": {
"anyOf": [
{
"type": "string",
"maxLength": 200
},
{
"type": "null"
}
]
},
"source": {
"anyOf": [
{
"enum": [
"searchapi.google_shopping.shopping_results.availability",
"searchapi.google_shopping.shopping_results.in_stock"
]
},
{
"type": "null"
}
]
},
"status": {
"enum": [
"in_stock",
"out_of_stock",
"preorder",
"unknown"
]
}
},
"description": "Unverified stock is unknown, with null source/text.",
"additionalProperties": false
},
"review_count": {
"anyOf": [
{
"type": "integer",
"maximum": 9007199254740991,
"minimum": 0
},
{
"type": "null"
}
]
},
"currency_source": {
"anyOf": [
{
"enum": [
"provider",
"price_text",
"country_context"
]
},
{
"type": "null"
}
]
},
"source_position": {
"anyOf": [
{
"type": "integer",
"maximum": 9007199254740991,
"minimum": 1
},
{
"type": "null"
}
]
}
},
"additionalProperties": false
},
"maxItems": 20
},
"currency": {
"$ref": "#/$defs/codes1"
},
"limitations": {
"type": "array",
"items": {
"type": "string",
"maxLength": 500
}
},
"result_count": {
"type": "integer",
"maximum": 20,
"minimum": 0
},
"result_limit": {
"type": "integer",
"maximum": 20,
"minimum": 1
},
"retrieved_at": {
"type": "string",
"format": "date-time"
},
"applied_filters": {
"type": "object",
"required": [
"country",
"currency",
"min_price",
"max_price",
"condition"
],
"properties": {
"country": {
"type": "object",
"required": [
"value",
"applied_at",
"location"
],
"properties": {
"value": {
"$ref": "#/$defs/codes0"
},
"location": {
"type": "string",
"maxLength": 300
},
"applied_at": {
"enum": [
"upstream"
]
}
},
"additionalProperties": false
},
"currency": {
"type": "object",
"required": [
"value",
"applied_at",
"excludes_unknown"
],
"properties": {
"value": {
"$ref": "#/$defs/codes1"
},
"applied_at": {
"enum": [
"local",
"not_applied"
]
},
"excludes_unknown": {
"type": "boolean"
}
},
"additionalProperties": false
},
"condition": {
"anyOf": [
{
"type": "object",
"required": [
"value",
"applied_at"
],
"properties": {
"value": {
"enum": [
"used"
]
},
"applied_at": {
"enum": [
"upstream_and_local"
]
}
},
"additionalProperties": false
},
{
"type": "null"
}
]
},
"max_price": {
"$ref": "#/$defs/priceFilter"
},
"min_price": {
"$ref": "#/$defs/priceFilter"
}
},
"additionalProperties": false
},
"currency_source": {
"enum": [
"request",
"country_default"
]
}
},
"additionalProperties": false
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-24 19:10Z
- Last indexed by Roundhouse
- 2026-09-24 19:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 16:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service 402Shelf 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=402Shelf' 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://api.402shelf.com/products/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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.