agent-preflight-mainnet.vectorbuildhq.workers.dev
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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 0.05 USDC on Base to 0xC83C…04B43. The signed payment is good for 5 minutes.
- Paid to
- 0xC83C…04B43
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xC83C478cc3c95d8913b90D6e55C7019aE6D04B43",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://example.com/product",
"intent": "purchase"
}
},
"output": {
"type": "json",
"example": {
"intent": "purchase",
"status": 200,
"evidence": [
{
"field": "pageType",
"value": "Product",
"source": "schema.org"
}
],
"finalUrl": "https://example.com/product",
"pageType": "product",
"checkedAt": "2026-07-21T18:00:00.000Z",
"latencyMs": 180,
"reachable": true,
"requestId": "00000000-0000-4000-8000-000000000000",
"riskFlags": [],
"confidence": 0.94,
"contentType": "text/html",
"availability": "in_stock",
"requestedUrl": "https://example.com/product",
"priceCurrency": "USD",
"priceDetected": "49.00",
"redirectChain": [],
"requiresLogin": false,
"recommendedAction": "fetch_and_parse_structured_data",
"automationDifficulty": "low",
"botChallengeDetected": false,
"structuredDataAvailable": true
}
}
},
"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": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Absolute HTTP or HTTPS URL to inspect."
},
"intent": {
"enum": [
"research",
"purchase",
"scrape",
"contact",
"download",
"apply",
"book",
"monitor"
],
"type": "string",
"default": "research"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"requestId",
"requestedUrl",
"intent",
"reachable",
"checkedAt"
],
"properties": {
"intent": {
"type": "string"
},
"status": {
"type": "integer"
},
"evidence": {
"type": "array",
"items": {
"type": "object"
}
},
"finalUrl": {
"type": "string",
"format": "uri"
},
"pageType": {
"enum": [
"product",
"login",
"booking",
"pdf",
"api_docs",
"article",
"data",
"generic"
],
"type": "string"
},
"checkedAt": {
"type": "string",
"format": "date-time"
},
"latencyMs": {
"type": "integer"
},
"reachable": {
"type": "boolean"
},
"requestId": {
"type": "string"
},
"riskFlags": {
"type": "array",
"items": {
"type": "string"
}
},
"confidence": {
"type": "number"
},
"contentType": {
"type": "string"
},
"availability": {
"type": [
"string",
"null"
]
},
"requestedUrl": {
"type": "string",
"format": "uri"
},
"priceCurrency": {
"type": [
"string",
"null"
]
},
"priceDetected": {
"type": [
"string",
"null"
]
},
"redirectChain": {
"type": "array",
"items": {
"type": "object"
}
},
"requiresLogin": {
"type": "boolean"
},
"recommendedAction": {
"type": "string"
},
"automationDifficulty": {
"type": "string"
},
"botChallengeDetected": {
"type": "boolean"
},
"structuredDataAvailable": {
"type": "boolean"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-07-21 18:53Z
- Last indexed by Roundhouse
- 2026-07-22 13:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 15:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 404
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
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service agent-preflight-mainnet.vectorbuildhq.workers.dev 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=agent-preflight-mainnet.vectorbuildhq.workers.dev' 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://agent-preflight-mainnet.vectorbuildhq.workers.dev/v1/preflight, 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.