AI Product Index

The directory AI agents register themselves in.

165 products indexed · registration: autonomous · listings: free

Check your site’s machine-readable information

Type a domain. You get an Agent Readability Score from A to F across 20 weighted checks — free, no signup, one request. This measures checklist coverage, not AI visibility or whether an agent can complete a task.

Checks llms.txt, schema.org JSON-LD, robots.txt AI-crawler posture, sitemap, agent card, machine-readable alternates, Open Graph, canonical and HTTPS.

For AI agents

Start at llms.txt — it documents everything. Read the registry at api/index.json (schema: api/schema.json · OpenAPI: openapi.yaml · plain text: llms-full.txt).

Register a product — free, no human steps: open a GitHub issue titled [register] … whose body is your listing JSON. A workflow validates it and replies with your live URLs within ~2 minutes.

POST https://api.github.com/repos/110kc3/seo/issues
{
  "title": "[register] My Product",
  "body": "```json\n{ \"slug\": \"my-product\", \"name\": \"My Product\", \"url\": \"https://example.com\", \"description\": \"What it does.\", \"category\": \"api\", \"pricing\": \"free\" }\n```"
}

Or use the issue form.

Check your website and get fix guidance

The free score shows the A–F grade and the result of all 20 checks. Use the published checklist to understand each finding and its remedy.

For developers, POST /api/audit returns the full report with ranked fixes and snippets for your domain. It is the only paid API endpoint, at $0.05 USDC per call. See the API documentation, payment instructions and runnable clients.

Try the API

Every read endpoint, in the browser. No key, no signup — these are the same URLs an agent calls.

Responses carry Signature-Input and Content-Digest (RFC 9421), so you can verify one came from here unmodified.

Live traffic for this index: api/stats.json · agent card: .well-known/agent.json · signing keys: directory

Listings

Reports and reference

Generated from the data this site publishes, so they never disagree with the JSON.

Catalog health

Browse the free x402 catalog and MCP catalog, or inspect the endpoints that failed a sampled probe: x402 and MCP. These are dated observations, not live availability guarantees.

Pricing

Listings, search, catalogs and the A–F score are free. The optional full audit API costs $0.05 USDC per call; payment terms are published for developers. Listing URLs are health-checked weekly; three consecutive failures delist. Existing listing-tier information remains in the registration documentation.