Independent checks of paid x402 data sellers and of AI-agent access to shopping and travel sites
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Check up to 25 sellers and 25 websites in one call (cheapest for many checks).
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Check up to 25 sellers and 25 websites in one call (cheapest for many checks).
| Argument | Type | Description |
|---|---|---|
| sellers | array | |
| websites | array |
{
"type": "object",
"properties": {
"sellers": {
"type": "array",
"items": {
"type": "string"
}
},
"websites": {
"type": "array",
"items": {
"type": "string"
}
}
}
}What changed since a day — keep a local copy in sync.
| Argument | Type | Description |
|---|---|---|
| since | string | YYYY-MM-DD |
{
"type": "object",
"properties": {
"since": {
"type": "string",
"description": "YYYY-MM-DD"
}
}
}Our latest independent check of one paid seller, by its address (any spelling) or id: answering, price, buyers, and its paid answers checked against an independent record (with proof).
| Argument | Type | Description |
|---|---|---|
| id | string | |
| resource | string | the seller's URL |
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"resource": {
"type": "string",
"description": "the seller's URL"
}
}
}Can AI agents use this shopping or travel website? Plain-agent access, each AI agent at the door, robots rules, llms.txt, history.
| Argument | Type | Description |
|---|---|---|
| domain* | string | e.g. walmart.com |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "e.g. walmart.com"
}
}
}Where to go for a job, before you spend tokens on trial and error: the best tested free official source with its exact call and how much it returns (and a fallback). Ask in plain words, e.g. 'UK company directors', 'Apple revenue', 'EU gas storage'. detail=full adds the paid sellers we rate and other sources.
| Argument | Type | Description |
|---|---|---|
| q* | string | what you need, in plain words |
| detail | string | full = also the paid sellers, registry-listed sources and other sources (a strong match otherwise returns the route alone) |
| country | string | optional ISO 3166 two-letter country code to prefer sources for that country, e.g. GB, US, DE |
{
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "what you need, in plain words"
},
"detail": {
"enum": [
"full"
],
"type": "string",
"description": "full = also the paid sellers, registry-listed sources and other sources (a strong match otherwise returns the route alone)"
},
"country": {
"type": "string",
"description": "optional ISO 3166 two-letter country code to prefer sources for that country, e.g. GB, US, DE"
}
}
}Every category of paid service agents buy, with sellers, buyers and how we check it; names in your language with lang.
| Argument | Type | Description |
|---|---|---|
| lang | string | language for category names |
{
"type": "object",
"properties": {
"lang": {
"enum": [
"en",
"zh-Hans",
"zh-Hant",
"ja",
"ko",
"hi",
"pt-BR",
"es",
"fr",
"de",
"it",
"nl",
"pl",
"sv",
"da",
"nb",
"fi",
"he",
"ar"
],
"type": "string",
"description": "language for category names"
}
}
}Rated websites, filtered by market (e.g. 'United States', 'Japan'), plain-agent outcome (open, blocked, timeout) or price honesty (does the price agents read match what people see).
| Argument | Type | Description |
|---|---|---|
| limit | integer | default 40 |
| cursor | string | next_cursor from the last page |
| detail | string | full = per-agent tables for every site (else counts; check_website has the tables) |
| market | string | |
| prices | string | price honesty on product, event or stay pages: keep sites with at least one page in this state |
| plain_agent | string |
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"maximum": 300,
"description": "default 40"
},
"cursor": {
"type": "string",
"description": "next_cursor from the last page"
},
"detail": {
"enum": [
"full"
],
"type": "string",
"description": "full = per-agent tables for every site (else counts; check_website has the tables)"
},
"market": {
"type": "string"
},
"prices": {
"enum": [
"match",
"differs",
"no_agent_price",
"not_comparable",
"agents_blocked"
],
"type": "string",
"description": "price honesty on product, event or stay pages: keep sites with at least one page in this state"
},
"plain_agent": {
"enum": [
"open",
"blocked",
"timeout",
"unavailable",
"connection_error",
"unclear"
],
"type": "string"
}
}
}Find paid x402 data services AI agents can buy, inside one category, ranked. Use before paying any seller.
| Argument | Type | Description |
|---|---|---|
| q | string | text to match in name or address |
| sort | string | accuracy ranks by the low end of the 95% range of paid answers judged correct |
| limit | integer | |
| cursor | string | |
| category* | string | category slug or its name in any of 19 languages, e.g. crypto-prices, 加密货币价格, 暗号資産の価格, cotización cripto (see list_categories) |
| answering | boolean | |
| max_price | number | max USDC per call |
| min_buyers | integer | |
| min_accuracy | number | keep sellers whose 95% range of correct paid answers starts at or above this share (0 to 1) |
| tools_honoured | boolean | AI chat sellers only: keep those whose checked calls passed an agent's tools to the model and never dropped them |
Every paid seller we check on one host.
| Argument | Type | Description |
|---|---|---|
| limit | integer | |
| domain* | string |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"limit": {
"type": "integer"
},
"domain": {
"type": "string"
}
}
}{
"type": "object",
"required": [
"category"
],
"properties": {
"q": {
"type": "string",
"description": "text to match in name or address"
},
"sort": {
"enum": [
"buyers",
"price",
"latency",
"accuracy"
],
"type": "string",
"description": "accuracy ranks by the low end of the 95% range of paid answers judged correct"
},
"limit": {
"type": "integer",
"maximum": 100
},
"cursor": {
"type": "string"
},
"category": {
"type": "string",
"description": "category slug or its name in any of 19 languages, e.g. crypto-prices, 加密货币价格, 暗号資産の価格, cotización cripto (see list_categories)"
},
"answering": {
"type": "boolean"
},
"max_price": {
"type": "number",
"description": "max USDC per call"
},
"min_buyers": {
"type": "integer"
},
"min_accuracy": {
"type": "number",
"description": "keep sellers whose 95% range of correct paid answers starts at or above this share (0 to 1)"
},
"tools_honoured": {
"type": "boolean",
"description": "AI chat sellers only: keep those whose checked calls passed an agent's tools to the model and never dropped them"
}
}
}