Vendor Website Change Report
Recheck one public vendor domain and compare its TLS, page identity and name-screen evidence with your previous snapshot. Returns before/after changes, missing checks, current evidence and a review queue. Without a previous snapshot, creates a baseline. No background monitoring, ownership verification or hosting geolocation.
Preview request
The preview path is rate-limited and does not charge. It executes the live source and returns the paid response shape while withholding decision-ready values. Production requests use the same parameters and return a standard x402 challenge when no payment signature is present.
curl --request POST \
"https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/vendor_change_report?preview=true" \
--header "content-type: application/json" \
--data '{"domain":"example.com"}'Input contract
| Parameter | Type | Required | Description |
|---|---|---|---|
domain | string | Yes | Public hostname only, without URL scheme, port, path or credentials. |
organization | string | No | Optional organization name to screen. Input changes can affect comparison. |
previous_snapshot | object | No | Snapshot from an earlier paid response for the same domain, maximum 8000 serialized characters. Caller-supplied and unverified. |
Example deliverable
This is the documented response shape, not a promise that live values will match the example. The paid request returns current or declared-source results using the same contract.
{
"success": true,
"product": "vendor_change_report",
"domain": "example.com",
"comparison_status": "baseline_created",
"baseline": "not_supplied",
"changes": [],
"unavailable_fields": [
"sanctions_name_match"
],
"partial": true,
"snapshot": {
"domain": "example.com",
"tls_authorized": true,
"website_title": "Example Domain"
},
"review_queue": [],
"evidence": {}
}Why this offer exists
One domain, current evidence, explicit changes and missing checks compared with your snapshot.
Buyer searches: vendor website changes, counterparty recheck, compare vendor snapshot, what changed on this domain.
Why pay: Turns multiple public checks into one bounded comparison and review queue. No ongoing monitoring subscription.
Launch price: 0.05 USDC per complete paid result. The live contract proof verifies source, freshness, inputs, and response shape before a wallet is asked to pay.
Purchase decision
Buy when: the active task needs this product's structured result, its declared source and freshness are sufficient, and 0.05 USDC is within the buyer's authorized per-request limit.
Skip when: a cached result is sufficient, the source or fields do not satisfy the task, or the buyer has not authorized payment. Do not bypass wallet, budget, or user-approval policy.
Guaranteed response metadata
Every successful product response identifies how the result was produced. Product-specific output fields are documented in the paid OpenAPI contract. The preview proves the live source and field types without returning the paid values.
{
"marketplace_metadata": {
"data_mode": "live_source",
"billable": true,
"availability": "operational",
"source": "Public DNS, RDAP, TLS, website evidence, OFAC and GLEIF; deterministic snapshot comparison, excluding IPWhoIs"
}
}Agent payment flow
Fast path: install the public MCP package, configure a dedicated low-balance Base buyer wallet and a maximum per-request spend, then call this tool with auto_pay: true. The client handles the challenge, local signature, settlement, and retry in one tool call.
npx -y dopaminedesk-ai-data-marketplace-mcp
X402_AUTO_PAY=true
X402_EVM_PRIVATE_KEY=<dedicated buyer wallet key>
X402_MAX_PAYMENT_USDC=0.25
tool input: { "auto_pay": true }Manual path: request the product, read the base64 PAYMENT-REQUIRED challenge, sign with any compatible x402 v2 client, and retry with PAYMENT-SIGNATURE. A successful response includes PAYMENT-RESPONSE.