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LLMs.txt Readiness Checker
x402
LLMs.txt Readiness Checker is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Checks a site's /llms.txt and /llms-full.txt files for presence, size, and structural validity per llmstxt.org spec, returning a readiness score and fix recommendations.
Price / call$0.005
Success—
StatusUnknown
How this service works
Focused check of a site's /llms.txt and /llms-full.txt: presence, size and llmstxt.org structural validity (an H1 title, a blockquote summary, sections of markdown links). Returns a readiness score plus fixes. Cheap sub-check of the full AEO audit.
Output
Returns a readiness score indicating how well the site's /llms.txt and /llms-full.txt comply with the llmstxt.org specification, including file presence status, file sizes, structural validation results (H1 title, blockquote summary, markdown link sections), and a list of specific fixes needed to improve compliance.
Example use cases
Example prompt
“Can you check whether example.com has a valid llms.txt file — I want to know if it's present, structurally correct (H1 title, blockquote summary, markdown link sections), and what score it gets?”
Technical details
Endpoint
GEThttps://api.agentstools.dev/aeo/llmsWhen to prefer
Use this endpoint when you only need a focused, cheap sub-check of whether a site has a valid llms.txt / llms-full.txt, rather than running the full AEO audit. Ideal for quick LLM-readiness screening of many domains or for confirming a specific site's compliance with the llmstxt.org standard before deeper analysis.
Side effects
- Target URL unreachable or DNS resolution fails — returns error with no score
- Site returns non-200 status for /llms.txt — flagged as absent
- Malformed URL input — returns validation error
- Rate limit or payment failure — 402 or 429 response
- Site has llms.txt but it is empty — low score with fix recommendations
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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