{"description":"Free tools and live data for people who run things on the internet: website health checks, SSL and domain expiry checkers, network tools, and an LLM API pricing dataset. This catalog lists the machine-readable surface an AI agent or API client can use: the public checker REST API, the LLM pricing data, and the agent-readiness checker.","name":"SysOSX","services":[{"description":"Public REST API behind the SysOSX web checkers: website health, SSL certificates and TLS grading, port scans, DNS blacklist and propagation checks, certificate transparency search, email authentication, CVE triage, BGP and RPKI lookup, domain registration and expiry, HTTP redirect chains, global ping measurements, agent-readiness scans and bulk domain checks. Free, no account and no API key; rate limits are per visitor IP and documented in auth.md.","id":"checker-api","links":{"access":"https://www.sysosx.com/auth.md","docs":"https://www.sysosx.com/api-docs/","openapi":"https://www.sysosx.com/openapi.json"},"name":"SysOSX Checker API","type":"rest-api","url":"https://www.sysosx.com/api/check/ping"},{"description":"LLM API pricing leaderboard and cost data: input, output and cached-input rates per 1M tokens, context windows, official source links and last-verified dates for models from OpenAI, Anthropic, Google, DeepSeek, xAI and Mistral, re-verified weekly. The full machine-readable site summary, including every model's current price line, is in llms-full.txt.","id":"llm-pricing","links":{"fullText":"https://www.sysosx.com/llms-full.txt","summary":"https://www.sysosx.com/llms.txt"},"name":"LLM Pricing Data","type":"dataset","url":"https://www.sysosx.com/llm/pricing/"},{"description":"Web tool that scans a domain the way an AI agent would approach it and returns a 0-100 readiness score across discovery, access, usability and payments, with every finding, its evidence and its fix shown free. The same scan is available over HTTP as GET /api/check/agent-readiness on the checker API.","id":"agent-readiness-checker","links":{"api":"https://www.sysosx.com/api/check/agent-readiness","guide":"https://www.sysosx.com/blogs/can-ai-agents-use-your-website/"},"name":"AI Agent Readiness Checker","type":"web-tool","url":"https://www.sysosx.com/tools/agent-readiness-checker/"}],"url":"https://www.sysosx.com/"}