Duet CSV Preflight
Deterministic CSV checks for import pipelines: row widths, missing required values, duplicate rows and keys, outer whitespace, and formula-like cells. Structured JSON; no API key or data retention.
x402 verified · Verified on /v1/preflight · $0.005 · $0.005 USDC/request · 1 endpoints · Verification · base network · x402 protocol
Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.
url https://payapi.market/mcpHow to call this API
Every protected route returns HTTP 402 with x402 payment requirements. An agent pays the stated USDC amount on Base and retries with the payment header. No API keys, no accounts. Browse the marketplace or list your own API.
By Astra Duet