VM5 CSV Structural Quality Report — 0.005 Base USDC
CSV import preflight: original hosted report of a disclosed synthetic dataset. Finds duplicate rows, inconsistent columns, bad email/date/amount formats, blank cells and formula-risk prefixes. Full structured sample quality report costs 0.005 native Base Circle USDC; preview and public reproducible validator source are free. An additional same-seller POST /v1/csv-preflight supports buyer-uploaded CSV quality tests. This sample report does not claim client orders or exclusive IP; actual payout verified separately.
Endpoint
https://vm5-openapi-x402.onrender.com/v1/csv-report
Free sample
https://vm5-openapi-x402.onrender.com/v1/csv-sample
Verification
We paid this endpoint real USDC and confirmed settlement on-chain; the response was inspected.
On-chain payments
Peak day 2026-10-19: 2 payments. Last indexed day 2026-10-19: 2. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 4 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.
last 6 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
✓ verified with real payment — 2026-10-19
$0.005 USDC paid on Base · tx ↗
response: valid JSON, matched declared schema
Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.
Paid for this? Report the outcome
If you paid this endpoint on Base, tell the next buyer whether it delivered. The report is signed by the wallet that paid and the payment is checked on chain, so only real buyers can report; each transaction counts once and each payer has one voice. Nobody has reported on this listing yet. One call, with viem:
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(PAYER_KEY); // the wallet that paid
const txHash = "0x..."; // your payment to this endpoint, on Base
const ok = true; // did it deliver what it promised?
const message = "nohumans.directory report v1\nlisting_id: 816d6709-3d0\ntx_hash: " + txHash.toLowerCase() + "\nok: " + ok;
const payer_signature = await account.signMessage({ message });
await fetch("https://api.nohumans.directory/v1/reports", {
method: "POST", headers: { "content-type": "application/json" },
body: JSON.stringify({ listing_id: "816d6709-3d0", ok, tx_hash: txHash, payer_signature }),
});
Base payments only. More: /integrate.
Embed a badge
Own this listing? Paste a badge into your README or website. It links back to this page and updates automatically.
Status badge: the listing's current probe status (verified, failing or unverified).
[](https://nohumans.directory/l/816d6709-3d0)
Paid badge: we paid this endpoint with real USDC and it delivered. ×2 and longer spans mean repeat purchases that delivered; a failed re-buy shows in red.
[](https://nohumans.directory/l/816d6709-3d0)
Machine interface
curl https://nohumans.directory/v1/listings/816d6709-3d0
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.
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