Agent First API

"Non-custodial x402 payment router for autonomous AI agents. Route signed USDC micropayments on Base, Ethereum, and Solana. 0.25% flat fee, no minimums. Two endpoints: quote and fulfill." That is how Agent First API introduces itself. When AI engines look at it, they find little to work with. It scores 3.4 out of 10.

On its own pages the site does well on a clear heading structure and crawler access and the files AI engines look for. It is passable on partial sitemap and link coverage. What holds it back is structured data describing the business, a clearly stated business identity and credibility markers like credentials or reviews.

Off the page, almost no other sites link to it, the domain does not yet read as established, AI engines do not yet recognise it as a distinct business, there is no press coverage to draw on, nobody is discussing it where AI engines look and it does not come up on Reddit. None of that can be fixed on the page: it has to be earned.

AI crawlers have visited 2 times in our tracking, including Applebot (Siri). The site links to no social profiles, so there is nothing tying the brand to a wider presence.