SiteCheck
Pay-per-call tools for AI agents: image generation, speech-to-text, text-to-speech, embeddings, LLM chat, website audits and contact enrichment, web page to Markdown reader, PDF to text, sitemap URLs, tech stack detection, translation, exchange rates, e-mail pre-check, domain RDAP/DNS lookup, Solana token checks, trending tokens and wallet holdings, plus business and compliance data (EU VAT/VIES, IBAN, LEI/GLEIF, US recalls, OSHA/EPA violations, UK insolvency notices). Also: SEO metadata, link c
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 0.003 USDC on Base to 0xb849…ceAfA. The signed payment is good for 5 minutes.
- Paid to
- 0xb849…ceAfA
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 3000 smallest units
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
- J8vnmB…BRdhR
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
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
- 0xa475…39be3
- Token contract
- 0x3600…00000
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "J8vnmBx4pS1X7UUBTfz1yWBKiw69Dj2yRGRHDaXBRdhR",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xa4751fCAa83c9669cfe507bb6807507729839be3",
"amount": "3000",
"scheme": "exact",
"network": "eip155:5042",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"hts": "8471.30",
"limit": "5"
}
},
"output": {
"type": "json",
"example": {
"note": "additionalDuties are Chapter 99 lines that USITC returns with the search; check whether each applies to the goods and origin.",
"count": 1,
"query": {
"hts": "8471.30"
},
"source": "USITC Harmonized Tariff Schedule REST API (hts.usitc.gov, public domain)",
"results": [
{
"units": [
"No."
],
"indent": 1,
"footnotes": [],
"htsNumber": "8471.30.01.00",
"column2Rate": "35%",
"description": "Portable automatic data processing machines, weighing not more than 10 kg, consisting of at least a central processing unit, a keyboard and a display",
"generalRate": "Free",
"specialRate": null
}
],
"checkedAt": "2026-10-15T18:21:06.382Z",
"disclaimer": "Information only, not legal advice. Verify with official sources.",
"additionalDuties": [
{
"units": [],
"indent": 1,
"footnotes": [
"See chapter 99 statistical note 1."
],
"htsNumber": "9903.41.15",
"column2Rate": null,
"description": "Automatic data processing machines, of the type of which the constituent units are integrated in the same housing, whether finished or unfinished, which incorporate a microprocessor-based calculating mechanism, are capable of handling data words of at least 16-bits off the microprocessor, and are designed for use with a non-cathode-ray tube (non-CRT) display unit, whether or not capable of use without an external power source (provided for in subheading 8471.30 or 8471.41)",
"generalRate": "100%",
"specialRate": null
}
]
}
}
},
"schema": {
"type": "object",
"$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": [],
"properties": {
"q": {
"type": "string",
"description": "Words to find in descriptions, e.g. portable data processing (every word must appear)"
},
"hts": {
"type": "string",
"description": "HTS number or prefix, e.g. 8471.30 or 8471300100"
},
"limit": {
"type": "string",
"description": "Lines to return, 1 to 25, default 10"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-16 07:38Z
- Last indexed by Roundhouse
- 2026-10-26 20:10Z
- Last enriched (probe, favicon, geo)
- 2026-10-16 19:15Z
- 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. 15 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 SiteCheck 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=SiteCheck' 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.sitecheck-api.workers.dev/api/tariff/us, 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.