Product Catalogue Preflight
Check up to 250 supplied product records for duplicate SKUs, nonpositive or malformed decimal prices, currency-code shape, and optional GTIN check digits. Return bounded row-level findings. No registry lookup, identifier ownership check, automatic repair or marketplace approval guarantee.
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 0.0245 USDC on Base to 0xec84…2de28. The signed payment is good for 1 minute.
- Paid to
- 0xec84…2de28
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 24500 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
- 0xec84…2de28
- Token contract
- 0xaf88…e5831
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
"amount": "24500",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
"amount": "24500",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"products": [
{
"sku": "example-a",
"gtin": "4006381333931",
"price": "6.99",
"currency": "USD"
}
],
"dataClass": "synthetic",
"expectedCurrency": "USD"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"result": {
"findings": [],
"recordsChecked": 1,
"findingsTruncated": false,
"structurallyValid": true,
"marketplaceApprovalEstablished": false
},
"version": "maha-demand6/1.0.0",
"inputHash": "sha256:1030e4dbc4be98c5a5dbf30dcd0506b653f69bef73af248e84928ea4f…",
"productId": "product-catalogue-preflight",
"resultHash": "sha256:614807e4c0d77ab7caf0fb8b646532953efae86d36e4c82e47d91f8d1…",
"limitations": [
"Public or synthetic input only. Caller labels do not detect sens…"
],
"receiptDigest": "sha256:b23628948fd0657ebd6ab1bdf85fe297788e184b237a2d7ca0b174fa7…"
}
}
},
"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": [
"dataClass",
"expectedCurrency",
"products"
],
"properties": {
"products": {
"type": "array",
"maxItems": 250,
"minItems": 1
},
"dataClass": {
"enum": [
"public",
"synthetic"
],
"type": "string"
},
"expectedCurrency": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
}
},
"additionalProperties": false
},
"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",
"required": [
"version",
"productId",
"inputHash",
"resultHash",
"receiptDigest",
"result",
"limitations"
],
"properties": {
"result": {
"type": "object"
},
"version": {
"type": "string",
"const": "maha-demand6/1.0.0"
},
"inputHash": {
"type": "string"
},
"productId": {
"type": "string",
"const": "product-catalogue-preflight"
},
"resultHash": {
"type": "string"
},
"limitations": {
"type": "array",
"maxItems": 16,
"minItems": 1
},
"receiptDigest": {
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
}
},
"maha-offer": {
"asset": "USDC",
"amount": "24500",
"method": "POST",
"status": "available",
"network": "eip155:8453",
"offerId": "product-catalogue-preflight",
"networks": [
"eip155:8453",
"eip155:42161"
],
"assetDecimals": 6,
"declarationUrl": "https://www.mahastrategies.com/api/discovery/x402-offers/product-catalogue-preflight",
"maxRequestBytes": 32768,
"canonicalResource": "https://www.mahastrategies.com/api/v1/demand/product-catalogue-preflight",
"declarationInline": "compact",
"payableInProduction": true,
"fullSourceTextStored": false,
"verbatimExcerptsRetained": false
},
"declaration-integrity": {
"metadataVersion": "2026-08-10",
"canonicalResource": "https://www.mahastrategies.com/api/v1/demand/product-catalogue-preflight",
"declarationDigest": "sha256:a9f50a511adbe15f379795d5322a5d799762b41ca3a2e96a87634b93754a1c2d"
}
}Provenance
- Seen in the source catalog
- 2026-10-12 09:49Z
- Last indexed by Roundhouse
- 2026-10-26 20:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-12 10:46Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 200
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. 19 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 Product Catalogue Preflight 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=Product%20Catalogue%20Preflight' 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://www.mahastrategies.com/api/v1/demand/product-catalogue-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. 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.