Check whether your llms.txt helps AI agents
Publishing an llms.txt file is only useful when it is reachable and gives machines a clear route to the site’s canonical resources. This focused check validates the live public file instead of assuming deployment succeeded.
No account, subscription, or API key is required. Paid calls use x402 with USDC on Base: request the endpoint, inspect the HTTP 402 terms, authorize payment under your own wallet policy, then retry with the payment signature.
Who it is for
Useful for site owners, documentation teams, and agent-platform engineers adding machine-readable guidance to a public web property.
What the paid result contains
The paid response contains the checked URL, HTTP evidence, presence result, and practical interpretation. Use the broader readiness audit when you also need crawler, metadata, and structured-data analysis.
What MilliAPI checks
- whether /llms.txt exists and returns successfully
- response type and usable text
- the final URL after redirects
- evidence an automated workflow can consume directly
Representative result
Fields vary with the target and live evidence; this abbreviated example shows the response shape, not a promised score.
{"target":"https://example.com/","llmsTxt":{"exists":true,"status":200},"priceUsd":0.001}Current price: $0.001 per successful response, derived from MilliAPI’s product manifest. Unqualified or invalid work is not presented as a successful paid result.