x402 census · mcp.dropenginehq.com · a9149f26c021 · JSON
POST /api/invoice-preflight
unprobed
Check invoice amounts, purchase details and line items; return match, discrepancy or needs_review with evidence.
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://mcp.dropenginehq.com/api/invoice-preflight |
| Method | POST |
| Price | $0.07 USDC = 65000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xc7693f1ba43E6D1F1885292E1194dc1FDc6e7585 |
| Seller | mcp.dropenginehq.com |
| Catalogs | cdp (row updated 2026-09-27) |
| Listed since (lower bound) | 2026-09-27 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-27 |
| CDP quality counters | 2 calls and 1 unique payers in 30 days, last call 2026-09-27 (catalog-reported, not verified on chain) |
| Category (keyword rule) | agent-services |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Invoice Preflight · invoice, reconciliation, ubl, ocr, agent |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 2 |
| Payments | 29 |
| USDC volume | $0.46 |
| Median payment | n/a |
| First / last payment | 2026-09-27 / 2026-09-28 |
| Sampler-shaped share of payments | n/a |
| Payers that are not samplers | n/a |
| Source | blockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total |
| Address | 0xc7693f1ba43E6D1F1885292E1194dc1FDc6e7585 |
Declared input and output (extensions.bazaar)
{
"input": {
"type": "http",
"method": "POST",
"truncated": true,
"chars": 1470
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 1511
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://mcp.dropenginehq.com/api/invoice-preflight' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'
The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/a9149f26c021/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"a9149f26c021"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on mcp.dropenginehq.com.