# SiteCheck llms.txt Reader > SiteCheck llms.txt Reader is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28). Fetches and parses the llms.txt (and llms-full.txt) file from a given website, returning structured AI-readable documentation metadata including title, summary, and section links. ## Facts - Endpoint: GET https://api.sitecheck-api.workers.dev/api/llms-txt?utm_source=zero.xyz - Price: $0.002/call - Payment: x402 - Status: unknown - Last checked: 2026-10-28 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/sitecheck-llms-txt-reader-6aa93b01 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1V6WAqZ-KOa3GtEY6GIZX Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability sitecheck-llms-txt-reader-6aa93b01 ``` Example prompt: Can you fetch and parse the llms.txt file from https://developers.cloudflare.com so I can see what documentation sections and links they expose for AI agents? ## When to prefer this Use this endpoint when you need to programmatically discover and consume AI-readable documentation from a website that follows the llms.txt standard. Prefer it over general web scraping when the goal is specifically to index or navigate a site's structured AI documentation sections, or when building a retrieval pipeline that needs canonical doc links organized by topic. ## Known failure modes - Site does not have an llms.txt file — exists field returns false - Invalid or unreachable URL — network error or timeout - URL missing https:// scheme — query param validation failure - Site returns llms.txt but it is malformed or unparseable — partial or empty sections - Rate limiting or Cloudflare Worker errors — HTTP 429 or 5xx ## How this service works Whether a site publishes /llms.txt and /llms-full.txt: the parsed llms.txt (title, summary, sections with their links) and the size of llms-full.txt. Reads the site itself, through the same URL guard and size cap as the page tools. ## Output Returns a JSON object containing the target site URL, the source URLs where llms.txt and/or llms-full.txt were found, and a structured llmsTxt object with: existence flag, byte size, title, summary, and an array of named sections each containing titled links with URLs and optional notes. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "type": "object", "required": [ "url" ], "properties": { "url": { "type": "string", "description": "Site address, https://…" } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object" } } } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "site": "https://developers.cloudflare.com", "source": "https://developers.cloudflare.com/llms.txt, https://developers.cloudflare.com/llms-full.txt", "llmsTxt": { "bytes": 16925, "title": "Cloudflare Developer Documentation", "exists": true, "summary": "Each product below links to its own llms.txt, which contains a full index of that product's documentation pages and is the recommended way to explore a specific product's content.", "sections": [ { "name": "Application performance", "links": [ { "url": "https://developers.cloudflare.com/argo-smart-routing/llms.txt", "note": "Route web traffic across the fastest, most reliable network paths", "title": "Argo Smart Routing" }, { "url": "https://developers.cloudflare.com/automatic-platform-optimization/llms.txt", "note": "Improve WordPress site performance by serving it from Cloudflare's global network", "title": "Automatic Platform Optimization" }, { "url": "https://developers.cloudflare.com/cache/llms.txt", "note": "Make websites faster by caching content across our global server network", "title": "Cache / CDN" } ] }, { "name": "Application security", "links": [ { "url": "https://developers.cloudflare.com/api-shield/llms.txt", "note": "Identify and address your API vulnerabilities", "title": "API Shield" }, { "url": "https://developers.cloudflare.com/bots/llms.txt", "note": "Protect your domain from bad bot traffic", "title": "Bots" }, { "url": "https://developers.cloudflare.com/cloudflare-challenges/llms.txt", "note": "Verify visitors are not bots with lightweight challenges", "title": "Challenges" } ] }, { "name": "Cloudflare One", "links": [ { "url": "https://developers.cloudflare.com/mesh/llms.txt", "note": "Connect services and devices with post-quantum encrypted mesh networking", "title": "Cloudflare Mesh" }, { "url": "https://developers.cloudflare.com/cloudflare-network-firewall/llms.txt", "note": "Protect your enterprise network with advanced firewall-as-a-service protection", "title": "Cloudflare Network Firewall" }, { "url": "https://developers.cloudflare.com/cloudflare-one/llms.txt", "note": "Replace legacy … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-llms-txt-reader-6aa93b01/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from api.sitecheck-api.workers.dev](https://www.zero.xyz/host/api.sitecheck-api.workers.dev/llms.txt)