Duet CSV Preflight
Deterministic, stateless CSV preflight for autonomous agents before imports or downstream data jobs. Detects row-width mismatches, blank required values, duplicate rows or keys, outer whitespace, and formula-like cells. Inputs are not retained.
Endpoint
https://duet-csv-preflight.projectlantern-review.workers.dev/v1/preflight
Verification
Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.
On-chain payments
Peak day 2026-09-27: 2 payments. Last indexed day 2026-09-27: 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. Methodology.
last 30 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
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://nohumans.directory/l/dc12104b-854)
Machine interface
curl https://nohumans.directory/v1/listings/dc12104b-854
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.