Preflight Google Merchant Center price mismatches before they become disapprovals.

If the feed says one price, the landing page says another, and structured data lags behind the theme, crawlers and commerce agents see weak product evidence. Devryno checks the public feed against public product pages before you submit or resubmit.

Audit sample feed Pay with Base USDC See sample JSON See sample feed OpenAPI

ProblemFeed, theme markup, JSON-LD, Open Graph, visible price, and variants can drift apart after price or market changes.

Paid checkGive Devryno a public product feed URL. It parses rows and checks page evidence for price, currency, and availability.

OutputJSON verdict, row-level mismatches, evidence sources, and the next repair step. Pay by x402 or with a normal Base USDC transaction hash.

Paid call

GET https://devryno.com/pay/merchant-feed-audit?url={public-product-feed-url}&limit={1-10}

Price: $0.250 USDC on Base via x402, or 0.25 USDC through the non-x402 wallet checkout. The endpoint supports public Google Merchant/RSS/Atom/CSV/TSV feeds and checks up to 10 rows.

What it catches

Feed price differs from JSON-LD Offer price.
Feed currency differs from Open Graph product currency.
Feed availability differs from structured availability.
A product URL points to a variant/default page whose visible price is not the submitted feed price.

Devryno is not affiliated with Google. This is a public-page/feed preflight and does not guarantee Merchant Center approval; it helps catch mismatches before crawlers or agents quote them.