Beyond search visibility
SEO answers important questions about crawling, indexing, content, and page quality. Agent-facing evaluation keeps those foundations and adds entity clarity, machine interface discovery, typed operations, access rules, and operational evidence.
Four separate questions
Discoverable asks where the site and documentation can be found. Understandable asks what the provider, content, and offers mean. Callable asks whether useful operations exist. Trustworthy asks whether evidence supports safe reliance.
What a useful audit returns
A useful result exposes observations, URLs, status, applicability, tested coverage, confidence, and prioritized fixes. One score may summarize completed checks, but it should not conceal skipped or irrelevant tests.
Callable, made concrete
Santos is itself an example of the callable dimension it measures: eleven x402-payable capabilities on Base mainnet, each documented in OpenAPI, discoverable through llms.txt and MCP, and priced explicitly rather than hidden behind a subscription. A Quick Intelligence Audit ($0.015 USDC) and Agent Readiness assessment ($0.075 USDC) triage a page; Safe Fetch ($0.002 USDC), Page-to-Markdown Extraction ($0.005 USDC), and Structured Extraction ($0.08 USDC) turn a page into raw text, clean Markdown, or schema-conforming JSON; Feed Parser ($0.003 USDC) and Link Map ($0.003 USDC) normalize any feed and map every link on a page; Summarizer ($0.033 USDC) condenses a page into a Claude brief; Screenshot & PDF Render ($0.01 USDC) captures what a real browser sees; a flat-rate Batch Audit ($0.50 USDC) covers up to 50 URLs; a Deep Website Intelligence Audit ($0.225 USDC) adds Lighthouse, axe-core, and network evidence. Every one settles USDC only after a successful response — a payable interface an agent can select, invoke, and trust without a support ticket.