402registry
Pay-per-check discoverability audit that shows what an AI crawler actually sees on your site
Visit 402registry.com →DocsSource
402registry audits whether AI crawlers (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) can read a website by making plain HTTP requests without JavaScript, checking robots.txt, sitemap, soft 404s, www/bare-domain duplicates, and visible content. A check costs $0.01 paid over the x402 protocol (USDC on Base) with no account or API key. The report quotes the actual HTTP responses with fixes for the site's stack. A passing check earns a dated badge and a free listing in a public catalog; failed checks are never published. Free endpoints include a site lookup API, a machine-readable catalog JSON, an OpenAPI spec, an MCP server, and an A2A agent card.
- Category
- Other
- Pricing
- usage_based
- Free tier
- yes
- API
- yes
- MCP server
- yes
- SDK
- no
- Open source
- no
Listed 2026-10-27 · last verified 2026-10-27 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.9
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API
curl https://toolgrep.com/api/products/402registry